So, how much braking do you really need?
#870556
12/03/10 11:45 PM
12/03/10 11:45 PM
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Joined: Mar 2006
Posts: 253 Orange County, CA
Mike H
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I can't recall having any difficulty bringing my 69 340 Dart (manual drum brakes) down from 110+mph, many times. So what's the deal with the massive disk brake setups so popular today? Ten inch, 12", 14" rotors, 4 pad, 6 pad, what, 12 pad? I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it. So I assume nobody's driving LeMans or Nurburgring. Where the heck are you guys driving that you need so much braking? Down a mineshaft?
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Re: So, how much braking do you really need?
[Re: Mike H]
#870559
12/03/10 11:55 PM
12/03/10 11:55 PM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Posts: 104,346
Garden Grove, CA
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There used to be a saying about never having enough horsepower... I just figure you can never have too much braking potential. And if I do ever get the car out to a road course/open track day sort of thing or run it really hard up in the hills/canyons I know I will never overheat or run out of braking. (I really wish I could have used the matching 8 piston AMG Brembo calipers for the AMG 360mm rotors...but feets couldn't do me a good enough deal on them )
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Re: So, how much braking do you really need?
[Re: goldmember]
#870560
12/03/10 11:58 PM
12/03/10 11:58 PM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
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I Live Here
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Grand Haven, MI
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braking is typically limited by tire grip and thermal dissipation. 3 cars with identical weight, weight distribution, and tires, one with 10.87" discs, one with 11" drums, the other with 13" discs will probably stop in the same distance from say, 60 mph. but do multiple hard stops from speed, you'll get brake fade quickly with the small disc and the drum car....
my duster stops very good with 10" drums all the way around....from say, 50mph. once on the freeway, I had to make a hard stop from 75mph when an accident happened a few cars ahead of me....by 25MPH my brakes were gone from heat soak....had to swerve and go in the grass to avoid the car in front of me....
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: So, how much braking do you really need?
[Re: Keith Black®]
#870562
12/04/10 12:02 AM
12/04/10 12:02 AM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Quote:
Quote:
...for me, I like the extra "braking horsepower" that 4 wheel discs offer. THAT, plus they look nice through the spokes of the 18 inch rims!
Wilwood's largest 6 piston SUV caliper & 14.5" discs:
If you had a small car like a Torana, only 14.17" rotors like mine would do..
(They are 1.41" thick too )
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Re: So, how much braking do you really need?
[Re: Mike H]
#870564
12/04/10 12:09 AM
12/04/10 12:09 AM
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Joined: Oct 2010
Posts: 606 Montana
Yancy Derringer
mopar
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mopar
Joined: Oct 2010
Posts: 606
Montana
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Quote:
I can't recall having any difficulty bringing my 69 340 Dart (manual drum brakes)
I'd suggest your memory is remembering the "good times"
My 64 426 Dodge had 11" brakes and a front sway bar stock. I did not have what I'd call "a lot of reserve"
My 69 383 Roadrunner with 11" manual brakes didn't either
My '70 440sixpack had single piston power front disk, and I guess 10 1/2" in the rear. It was more than adequate, but I did some trailer towing---a pretty loaded move from San Diego to N Idaho once, towing a '70 Cuda on a trailer and lots of personal junk. The trailer had electric brakes, but I would not consider that car had "tremendous" over braking capacity.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870565
12/04/10 12:11 AM
12/04/10 12:11 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I'm gonna fab some rear discs on a SBP 8&3/4 as I ran across some late MP SBP disc rotors from God knows what that are sitting idle/use fabbed brackets/probably 73 A 2.60" calipers. The proportioning may (& prob will be) off but I'm bored and want to know (if 4 wheel discs are good). Just dont know how the endplay is going to affect things but I'll get it close to zero. I have a DD 65 dart w 74 A (2.75") discs/10" bbp drums/stock 4 wheel drum splitter/large bore (1&1/8" iirc) M/C and it stops real good (though the rears lockup 1st on a panic stop) but I drive like an old man around town so no probs and the semi met pads (or rotors) are not wearing significantly that I can tell. All is good .
live every 24 hour block of time like it's your last day on earth
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Re: So, how much braking do you really need?
[Re: patrick]
#870566
12/04/10 12:13 AM
12/04/10 12:13 AM
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Joined: Feb 2004
Posts: 4,501 Gainesville,FL
goldmember
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master
Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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Quote:
braking is typically limited by tire grip and thermal dissipation. 3 cars with identical weight, weight distribution, and tires, one with 10.87" discs, one with 11" drums, the other with 13" discs will probably stop in the same distance from say, 60 mph. but do multiple hard stops from speed, you'll get brake fade quickly with the small disc and the drum car....
my duster stops very good with 10" drums all the way around....from say, 50mph. once on the freeway, I had to make a hard stop from 75mph when an accident happened a few cars ahead of me....by 25MPH my brakes were gone from heat soak....had to swerve and go in the grass to avoid the car in front of me....
There are a lot more factors but I'm not going into it. I'm used to stopping from well above 120mph and the factory drum brakes in great shape with the proper shoes(not replacement crap) are capable,but fade will become a problem on repeated stops. With the factory tires and such I wouldn't worry so much about real braking.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870569
12/04/10 12:47 AM
12/04/10 12:47 AM
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Joined: Jul 2003
Posts: 6,167 Maryland
GO_Fish
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Maryland
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If you are running drum/drum setup, the quickest and easiest bang for the buck is to upgrade to the widest tires that will fit your rims and wheel openings. The bigger contact patch is huge. OEM drums with skinny tires would lock up and skid big time when you stood on them. With a good brake rebuild w/ 4 wheel drums and fat tires, you can stand on the brakes and the tires will not slide. For drag strip use, the setup is plenty safe. If you are doing rallye racing (or an aggressive driver on the street), that is quite another story Need disc's up front then.
Scott B.
"I'm a self-made man... I started with nothing, and I still have most of it!"
68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph
69 340 GTS stock 14.18@ 95.60 mph
01 5.9L Ram 1500 Quad Cab 4x4
01 3.5L 300M 16.23@ 86.97 mph
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Re: So, how much braking do you really need?
[Re: GO_Fish]
#870570
12/04/10 02:21 AM
12/04/10 02:21 AM
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Joined: Oct 2010
Posts: 606 Montana
Yancy Derringer
mopar
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mopar
Joined: Oct 2010
Posts: 606
Montana
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Quote:
...drum/drum setup, the quickest and easiest bang for the buck is to upgrade to the widest tires that will fit your rims and wheel openings.
While you might have a valid point so far as a panic stop, this will do NOTHING for brake fade on a curvy, hilly, hard driven road.
Also, it's important to realize that larger DIAMETER tires effectively cause a "geared up" effect on the brakes (of all kinds) and lessen the braking effect
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870573
12/04/10 03:11 AM
12/04/10 03:11 AM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
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Posts: 5,399
Aurora, Colorado
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Quote:
Front disc brakes are a godsend as far as braking goes. Mopar disc brakes are are pretty dang good especially with a proportioning valve in the rear brake line, it helps to balance front to rear braking.
Last summer I drove my 74 340 challenger to the top of Pikes Peak, which meant I had to drive back down that huge mountain.
I not so sure drum brakes wouldn't over heat coming down that thing.
Halfway down, they stop you and shoot your brakes with a heat gun. I thought I was hardly even using the brakes running in low gear and second but the guy said they were hot and I should let em cool.
Sign say "hot brakes fail" This is at the top, on the way down
Pikes peak is really tough on brakes, expecially with a auto trans or where you can not use engine braking. usually having to be on the brakes because of slower traffic in front of you, and moving too slow for force air through the rotors for the brakes too cool. That said, I'm still running the stock 11" manual drums on the Coronet, but it is a manual trans with 4.10:1 gears
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Re: So, how much braking do you really need?
[Re: Mike H]
#870575
12/04/10 03:43 AM
12/04/10 03:43 AM
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Joined: Dec 2003
Posts: 22,695 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,695
Bitopia
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To answer your question, keeping up with the jones's, mines bigger then yours, fad, etc. I might even be guilty. Technically it all comes down to how many times you want to stop from speed. And most of the time on a road course with a non race car, the biggest first brake improvement is simply fresh High temp brake fluid, next is decent air ducts to front brakes, and decent pads for the application. And massive oversized brakes will lower a cars driving performance unless we are talking CF rotors, because of rotational mass of huge rotors. If what you got works, just maintain it, and smile at the newest/greatest/biggest crowd.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870576
12/04/10 04:02 AM
12/04/10 04:02 AM
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Joined: Jan 2003
Posts: 27,451 So Cal
autoxcuda
Too Many Posts
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Too Many Posts
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So Cal
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Re: So, how much braking do you really need?
[Re: Mike H]
#870577
12/04/10 05:38 AM
12/04/10 05:38 AM
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Joined: Jul 2005
Posts: 351 Goat Rodeo
drago
enthusiast
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enthusiast
Joined: Jul 2005
Posts: 351
Goat Rodeo
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Your car has drum brakes? Maybe you should put a crank handle out the front of the engine and start it by hand? Possibly even hire a guy with a big red flag to walk in front of you when you drive out on the roads?
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Re: So, how much braking do you really need?
[Re: BigBlockMopar]
#870579
12/04/10 11:36 AM
12/04/10 11:36 AM
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Joined: Mar 2006
Posts: 253 Orange County, CA
Mike H
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Orange County, CA
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Wow, the overseas crowd is being a bit rough on this old guy!
I do drive slower than the surrounding traffic, about 3-5 mph. There are enough weavers, idiots,and jerks here in Southern Ca. I despise that kind of disrespectful driving.
autoxcuda, I know you have really got your cuda dialed in as I have read some of your other posts, and would like to connect with you at Woodley. I have a 68 fastback (although its a big block)and would like to get your advice on suspension, etc.
My whole point in the post was not to defend factory brakes. It just seems to put discs the size of basketball hoops on a platform like a B or E body is kind of like turbocharging an ice cream truck.
Where can I get one of those hand-crank starter thingies?
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Re: So, how much braking do you really need?
[Re: Keith Black®]
#870582
12/04/10 12:08 PM
12/04/10 12:08 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Quote:
Quote:
... If you had a small car like a Torana, only 14.17" rotors like mine would do..
(They are 1.41" thick too )
heheh.. far too many of those little cars around here as it is
Darren, Oz, when will you two grow up? After all, you both know that mine's better.
Ya see, Oz STOLE the brake rotor thing from me. It seems that I had to do everything except bolt 'em to the car for him. I had been threatened with vile and vulgar things involving zombie penguins or something like that.
This is the 8 piston caliper that belongs on Oz's rotors.
He was too lame to install the matching rear rotors:
I'll be moving them over to the Imperial. When that's done, I might make a stop in the LA area to see if those cutesy little Aussie cars make good speed bumps for real American iron.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: Mike H]
#870585
12/04/10 12:31 PM
12/04/10 12:31 PM
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Joined: Jan 2003
Posts: 27,451 So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,451
So Cal
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Quote:
... autoxcuda, I know you have really got your cuda dialed in as I have read some of your other posts, and would like to connect with you at Woodley. I have a 68 fastback (although its a big block)and would like to get your advice on suspension, etc.
'
No problem.
Mike which car do you bring to Woodley. I'll look it up in my pictures.
Front and rear sway bars and performance alignment would give you a seat of the pants improvement. Next would be 1" t-bars and Hotchkis Bilstein shocks.
Quote:
My whole point in the post was not to defend factory brakes. It just seems to put discs the size of basketball hoops on a platform like a B or E body is kind of like turbocharging an ice cream truck.
To a certain degree I agree with you. Some people slap these part on cars that really don't have the "system" to utilize the most or even much of gains of one improvement.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870586
12/04/10 12:33 PM
12/04/10 12:33 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
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Posts: 28,067
Irving, TX
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Quote:
So what's the deal with the massive disk brake setups so popular today? Ten inch, 12", 14" rotors, 4 pad, 6 pad, what, 12 pad?
I run the brakes off a Mercedes S55 AMG front and rear. They are 14.2" front rotors that are 1.4" thick and use 8 piston calipers with 4 pads each. The rears are 13" rotors 1.25" thick with 4 piston calipers. The difference between these and the old 10" drums is incredible. ONE front rotor has more surface area than three of the stock drums. Sure, they're heavy at 27 lbs each but I have the power to cover that.
Quote:
I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it. Where the heck are you guys driving that you need so much braking?
I drive in Dallas, TX. We used to have nice people here then everyone in the world thought it'd be a good place to visit and they never went home! Now, there are no rules on the road. I've had a couple close calls that would have resulted in a collision had the old drums been on the car.
My car isn't a G-machine or whatever you want to call it. I do have good brakes, plenty of power (twin turbo 440), and front/rear sway bars. The big brakes and sticky 245/45-18 and 295/45-18 tires help me put a little fun in driving. Even without chassis upgrades the difference is astounding.
I didn't do a "bandwagon" or "keeping up with everybody else" thing. I had the 11/75" front discs and TSM 11" rears. The car was still able to heat up the brakes when I was misbehaving behind the wheel. In fact, I could push through the brakes with the throttle. My own little "unintended acceleration" issue would result in a car that would not stop by brakes alone. I wanted more brake power to go with my horsepower. When shopping for a brake kit 5 years ago I came up with VERY expensive packages. Working at a Mercedes store opened up the possibilities for good stuff at an employee discount. I picked up all four corners of the AMG brakes for less than an aftermarket 13" front brake kit cost at the time. It was also more "me" than buying a kit. I have a tendency to find random things that work nicely on my car but were never intended to be there. Why give someone else the money when I can make my own?
Enough babbling. I found 'em cheap (relatively speaking) and made it work. That's what I do.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: Mike H]
#870587
12/04/10 12:34 PM
12/04/10 12:34 PM
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Joined: Sep 2005
Posts: 12,481 Chino Valley
RodStRace
I Live Here
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I Live Here
Joined: Sep 2005
Posts: 12,481
Chino Valley
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Up until the 50s, cars stopped faster than they accelerated. From then until these big brakes started being installed, cars couldn't stop at high performance levels, but the engine tech was there. Not many people were installing NASCAR drum brakes, but were installing HP engines. While a portion of the customers that are putting them on to impress, a HP brake setup does allow better stopping and more prolonged stopping. Great braking is needed to survive in modern traffic due to not only the better braking of modern everyday cars, but also due to the stupidity of others out there. You can drive slower, but there is always an idiot or a situation that will require you to stop on a dime.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870589
12/04/10 02:00 PM
12/04/10 02:00 PM
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Joined: Jan 2003
Posts: 3,575 The Netherlands
BigBlockMopar
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Posts: 3,575
The Netherlands
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Quote:
Wow, the overseas crowd is being a bit rough on this old guy!
I do drive slower than the surrounding traffic, about 3-5 mph. There are enough weavers, idiots,and jerks here in Southern Ca. I despise that kind of disrespectful driving.
Just ribbing you a bit Mike! Here in the city where I live when you drive slower then the rest and leave a gap large enough for just over 1 car, you can be certain someone will force they way in there.
Until last year I've had 12" drumbrakes on my '62 wagon. The drums were a bit worn out and the shoes didn't have the same contact patch anymore as designed. There were good enough for city driving, but totally useless on the highway. Many of times I've driven the wagon in traffic and wished, really wished, as in 'needed', the brakes were better. Instead of trying to find new drums and spent money on a outdated system, I decided to put homemade discbrake system on based on '73 rotors, which are 11.75". The wagon is a totally different car to drive now, even more now I know it will stop securely in traffic.
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Re: So, how much braking do you really need?
[Re: jcc]
#870590
12/04/10 02:20 PM
12/04/10 02:20 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Manitoba, Canada
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Quote:
If what you got works, just maintain it, and smile at the newest/greatest/biggest crowd.
That's the way I've felt about it too. I don't have the tires to utilize a higher braking capacity than my stock power disc/drums so I see no gain in upgrading. I have never experienced brake fade with the car and I can gear down my manual transmission in hilly areas. I am in the process of doing some transmission upgrades that will likely help my braking more than large discs would.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870591
12/04/10 02:40 PM
12/04/10 02:40 PM
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Joined: Aug 2006
Posts: 247 DuPont, Washington
DZJim
enthusiast
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enthusiast
Joined: Aug 2006
Posts: 247
DuPont, Washington
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Quote:
I can't recall having any difficulty bringing my 69 340 Dart (manual drum brakes) down from 110+mph, many times. So what's the deal with the massive disk brake setups so popular today? Ten inch, 12", 14" rotors, 4 pad, 6 pad, what, 12 pad? I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it. So I assume nobody's driving LeMans or Nurburgring. Where the heck are you guys driving that you need so much braking? Down a mineshaft?
Massive overkill for most people most of the time. Nice conversation pieces though. When I was a kid the folks bought a new '57 Plymouth with an "Automatic Transmission". Wow! new deal! Two-speed Powerflite...remember them? Four buttons: D, L, R, N. (they had a very effective parking brake).
Anyway, drives in the Sierras east of Fresno were challenging from a braking perspective. Many of the grades were/are quite steep. I remember first time we took the new car up to the hills. The old man concerned a bit about brake temperatures. Next time we took the '53 Cranbrook with three on the tree.
Yeah, big brakes are useful sometimes.
My $0.02
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Re: So, how much braking do you really need?
[Re: Mike H]
#870592
12/04/10 03:07 PM
12/04/10 03:07 PM
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Joined: Jan 2003
Posts: 397 Ozona, Texas
Paladin
enthusiast
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enthusiast
Joined: Jan 2003
Posts: 397
Ozona, Texas
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Quote:
I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it.
Mike,
While I don't usually go for the uber large custom braking systems either due to the cost, I do take a bit of offense to your statement made above. It shows a lot of hyperbole at best, and a definite lack of knowledge and experience at worst.
I have driven a lot of old Mopars in my time, and several of them are far above the handling capabilites of a Suburban or a Camry . The torsion bar front suspension was hailed as the basis of some of the best handling American cars of their day, a fact which is still repeated by people who are surprised when they drive a properly aligned and cared for old Mopar with modern rubber on the ground.
I personally have driven such cars at triple digit speeds in emergency situations, and a '78 Monaco A38 or an AHB Fury will handle just as well as a 9C1 Caprice or the newest Crown Vic P71 with comparable rims and tires. I have also crawled into several civilian B, C, E and other size bodies which would surprise you, and if they had the heavy duty suspension option or a trailering package can be a joy to drive in a set of high speed curves. If you would care to do some research and reading on this subject, you will find many others who will tell you the same thing.
Finally, once you put some thought into setting up an old Mopar suspension correctly with just some simple modifications, you can amaze other people in just how flat one of them can corner and run through an evasive lane change scenario. As one person put it, "you have taken a two ton big block Dodge and taught it how to dance."
Suburbans and Camrys? Please.
May God bless America,
Paladin
1971 Dodge Charger R/T 1977 Chrysler Cordoba A35 1979 Dodge Lil� Red Express 1981 Chevrolet Corvette 1985 Chevrolet Corvette 1986 Chevrolet Corvette Roadster 1994 Lincoln Mark VIII 1998 Dodge Ram 2500 Sport V10
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Re: So, how much braking do you really need?
[Re: OzHemi]
#870593
12/04/10 03:08 PM
12/04/10 03:08 PM
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Joined: Jul 2006
Posts: 4,179 California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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to some degree i understand what the OP is saying. i have 11" drums all the way round on the road runner, and i had the shoes radiused to the drums, and it stops really well. but i know that in an emergency situation, it isn't going to stop anything like a modern car, and i have felt the fade. at the end of the 1/4 mile, doing 109, it was a bit of work to make the first turn off, and a couple times i just went for the second. another story, a few years ago i got a chance to drive a new lambourghini, don't remember the model, but it was the 500hp car. i didn't get a chance to play with the handling, i wasn't all that impressed with the acceleration, but at one point on the highway i was doing about 110 or so, and jumped on the brakes to slow down for upcoming traffic, and it was mind-boggling! it seemed like one second i was doing 110, and the next second i was doing 60. no dive, no swerve, no sway, it just felt like instantaneous deceleration! i gained a whole new respect for brakes after that.
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Re: So, how much braking do you really need?
[Re: Paladin]
#870594
12/04/10 03:10 PM
12/04/10 03:10 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Cincinnati, Ohio
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Quote:
Quote:
I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it.
Mike,
While I don't usually go for the uber large custom braking systems either due to the cost, I do take a bit of offense to your statement made above. It shows a lot of hyperbole at best, and a definite lack of knowledge and experience at worst.
I have driven a lot of old Mopars in my time, and several of them are far above the handling capabilites of a Suburban or a Camry . The torsion bar front suspension was hailed as the basis of some of the best handling American cars of their day, a fact which is still repeated by people who are surprised when they drive a properly aligned and cared for old Mopar with modern rubber on the ground.
I personally have driven such cars at triple digit speeds in emergency situations, and a '78 Monaco A38 or an AHB Fury will handle just as well as a 9C1 Caprice or the newest Crown Vic P71 with comparable rims and tires. I have also crawled into several civilian B, C, E and other size bodies which would surprise you, and if they had the heavy duty suspension option or a trailering package can be a joy to drive in a set of high speed curves. If you would care to do some research and reading on this subject, you will find many others who will tell you the same thing.
Finally, once you put some thought into setting up an old Mopar suspension correctly with just some simple modifications, you can amaze other people in just how flat one of them can corner and run through an evasive lane change scenario. As one person put it, "you have taken a two ton big block Dodge and taught it how to dance."
Suburbans and Camrys? Please.
May God bless America,
Paladin
With the battery in the trunk and now aluiminum heads my old E body don't do to bad in the twistes now a days.
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Re: So, how much braking do you really need?
[Re: Paladin]
#870595
12/04/10 04:53 PM
12/04/10 04:53 PM
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Joined: Mar 2006
Posts: 253 Orange County, CA
Mike H
OP
enthusiast
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OP
enthusiast
Joined: Mar 2006
Posts: 253
Orange County, CA
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Paladin-hyperbole? Of course, but not much. My dog is only 20 pounds.
The original post wasn't intended to critique old Mopars handling, though there is ample ammo for that. Just my opinion that uber brake systems are generally overkill given the limiting factors (weight, distribution, suspension) of the vehicles they are installed on.
And, unless a person is a cop, or is friends with all the local ones, the opportunities for utilizing the additional braking potential of such a system over factory discs seems really limited. Cool looking? No doubt. Practical? Not as sure about that.
Here are a couple of other thoughts. It seems like the best way to improve an old cars braking, even with stock drums, would be to install some kind of ABS system. But I have never heard of anyone doing that. Is it too expensive/complicated to design/install?
Second thought, a little off subject, is if torsion bars were such a great thing, why don't cars today use them? Or do they?
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Re: So, how much braking do you really need?
[Re: Mike H]
#870596
12/04/10 04:56 PM
12/04/10 04:56 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Second thought, a little off subject, is if torsion bars were such a great thing, why don't cars today use them? Or do they?
My 98 chevy pickup uses them.
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870597
12/04/10 05:40 PM
12/04/10 05:40 PM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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Quote:
Quote:
Second thought, a little off subject, is if torsion bars were such a great thing, why don't cars today use them? Or do they?
My 98 chevy pickup uses them.
My '02 GMC HD does as well..
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Re: So, how much braking do you really need?
[Re: Mike H]
#870598
12/04/10 05:42 PM
12/04/10 05:42 PM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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Quote:
It seems like the best way to improve an old cars braking, even with stock drums, would be to install some kind of ABS system. But I have never heard of anyone doing that. Is it too expensive/complicated to design/install?
I did it to a Camaro, but it was the really long way around to get ABS and traction control in an old car
http://www.cardomain.com/ride/2682662/1969-chevrolet-camaro
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870599
12/05/10 12:03 AM
12/05/10 12:03 AM
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Joined: Sep 2003
Posts: 1,168 Vancouver, WA
MoparMarq
super stock
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super stock
Joined: Sep 2003
Posts: 1,168
Vancouver, WA
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Quote:
Second thought, a little off subject, is if torsion bars were such a great thing, why don't cars today use them? Or do they?
'01 Durango has 'em, too.
BTW, front brakes on the Durango are discs 11.3 inches in diamter, and rears are drums (they look to be 11x2 or so). Braking is satisfactory although the discs have a tendency to warp. Later model Durangos ('03 and up), I believe, have 13" rotors, and discs in the rear. Maybe Ma Mopar learned something in 5 years from '98 to '02.
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Re: So, how much braking do you really need?
[Re: MoparMarq]
#870600
12/05/10 12:56 AM
12/05/10 12:56 AM
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Joined: Jan 2003
Posts: 30,989 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 30,989
Oregon
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Most everyone has learned by now the value of big brakes. Any modern car that has the power of a 440+6 or a Hemi will have at least 13 inch rotors on it. Even the lower price Mustangs and Camaros come with big brakes these days.
Last edited by AndyF; 12/05/10 12:57 AM.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870601
12/05/10 12:27 PM
12/05/10 12:27 PM
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Joined: Jan 2003
Posts: 1,756 London, England
Gavin
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,756
London, England
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Quote:
It seems like the best way to improve an old cars braking, even with stock drums, would be to install some kind of ABS system. But I have never heard of anyone doing that. Is it too expensive/complicated to design/install?
ABS does not actually improve the available braking capability.
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Re: So, how much braking do you really need?
[Re: Gavin]
#870602
12/05/10 06:10 PM
12/05/10 06:10 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
ABS does not actually improve the available braking capability.
No but it does prevent you from locking the tires, and in theory locked tires on pavement slow down less rapidly than when ABS keeps the tires at their point of maximum traction.
Quote:
it seemed like one second i was doing 110, and the next second i was doing 60. no dive, no swerve, no sway, it just felt like instantaneous deceleration! i gained a whole new respect for brakes after that.
Yes but was that because of big brakes or was that because of it having a much better setup suspension, tires, stance, lower center of gravity, favorable mid-engine weight distribution, etc?
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Re: So, how much braking do you really need?
[Re: DaytonaTurbo]
#870603
12/05/10 06:34 PM
12/05/10 06:34 PM
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Joined: Jan 2003
Posts: 1,756 London, England
Gavin
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,756
London, England
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Quote:
Quote:
ABS does not actually improve the available braking capability.
No but it does prevent you from locking the tires, and in theory locked tires on pavement slow down less rapidly than when ABS keeps the tires at their point of maximum traction.
Well the comment made was "the best way to improve an old cars braking"....and ABS does not improve braking. If you're saying that braking with non-locked wheels is better than locked wheels, then yes of course it is, I doubt anyone is arguing that. But it doesn't take ABS to avoid locked wheels - proper set up and threshold braking.
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Re: So, how much braking do you really need?
[Re: jcc]
#870606
12/06/10 03:43 PM
12/06/10 03:43 PM
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Joined: Jan 2010
Posts: 157 hawaii
pauly v.100
member
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member
Joined: Jan 2010
Posts: 157
hawaii
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Re: So, how much braking do you really need?
[Re: jcc]
#870608
12/06/10 08:24 PM
12/06/10 08:24 PM
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Joined: Jan 2003
Posts: 5,386 Pikes Peak Country
TC@HP2
master
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master
Joined: Jan 2003
Posts: 5,386
Pikes Peak Country
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Quote:
Quote:
ABS makes stopping faster in panic situations for people who haven't practiced panic braking and keeping the brakes right at that threshold.
I think that very important point is worth repeating, and to state the obvious is ABS "cycles" brakes between near lockup and release, and that actually increases stopping distance over the experienced driver as you mentioned.
I'll third that and add that I've read tests where in side by side comaprisons, profesional drivers can outdrive the ABS computer.
Seperate fromteh original topic, but relative to ABS, I've been in off road situations where locking up the tires and pushing a gravel berm in front of them was a much safer way to stop than having ABS modulate a vehicle into a potentially disastarous situation.
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Re: So, how much braking do you really need?
[Re: TC@HP2]
#870609
12/06/10 10:01 PM
12/06/10 10:01 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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To the OP's question; how much brake you need depends on what you do with the car. For most people a properly set up factory set of drums would do although fade is an issue with REPEATED use (a one time panic stop is unlikely to be repeated until the brakes have cooled or high speed stops (over 60 mph) which also aren't that common in day to day driving. A factory disk/drum setup with decent tires is more than adequate for most any non-roadracing aplication. The huge rotor/6 piston caliper setups just aren't needed for a street driven car, but people buy them mostly cause they think they look cool.....sorta like the soccer moms in thier Rubicon Wranglers that have never been off pavement. Another thing to consider is comparing say, the brakes on my 06 Durango is kinda misleading unless you remember that the Durango outweighs my Superbee by over 2000 lbs! I still remember trying to slow down my brothers drum braked, 427 powered GTO from 150mph......that took awhile! my factory disk/drum equipped 442 was a lot nicer to slow down from those speeds. I laugh when someone suggests you need 4 wheel disks to stop properly! god help you if you jamb on the brakes of your new SRT8 right in front of my (4 wheel disk equipped) Ram dually when I have my camper on! at 12,000 lbs, I'd suggest a 68 drum braked coronet will stop faster. 2 pennies, Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: MoparforLife]
#870611
12/07/10 12:41 AM
12/07/10 12:41 AM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Locking the tires is rarely desired. Most of the time it'll lead to VERY long stopping distances. Those are closely followed by insurance claims, personal injury attorneys, and a couple months of waiting for your car to get out of the body shop.
When I see the guy in the 4 wheel disc equipped Ram with the 12,000 lb camper jack knife in the middle of the road and dump the rig on it's side, I want to know that my 4 wheel disc brakes will stop me before I slam into the roof of his overturned truck and squash him like a grape.
No, I don't need 14 inch rotors on the front of my 65 Belvedere. However, it is the best performing brake package I've had on the car AND it was the most affordable at the time. There is a noticeable difference between these and the standard old Mopar disc brakes. These are MUCH nicer, even in daily use.
Let's not bring up the 4 wheel drums and single pot master cylinder this car left the factory with. They were horrible.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: feets]
#870612
12/07/10 12:44 AM
12/07/10 12:44 AM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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Quote:
Here's a video of the SLR's carbon ceramic brakes glowing after a single stop from 120 mph.
That is pretty cool looking.
I need to make up some duct work for mine actually...the front spoiler I have already has the opening for the brake cooling ducts (the touring/road race cars used them) Just need to run some hose from there to some sort of mount behind the rotor.
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Re: So, how much braking do you really need?
[Re: feets]
#870613
12/07/10 01:19 AM
12/07/10 01:19 AM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
Locking the tires is rarely desired. Most of the time it'll lead to VERY long stopping distances. Those are closely followed by insurance claims, personal injury attorneys, and a couple months of waiting for your car to get out of the body shop.
When I see the guy in the 4 wheel disc equipped Ram with the 12,000 lb camper jack knife in the middle of the road and dump the rig on it's side, I want to know that my 4 wheel disc brakes will stop me before I slam into the roof of his overturned truck and squash him like a grape.
No, I don't need 14 inch rotors on the front of my 65 Belvedere. However, it is the best performing brake package I've had on the car AND it was the most affordable at the time. There is a noticeable difference between these and the standard old Mopar disc brakes. These are MUCH nicer, even in daily use.
Let's not bring up the 4 wheel drums and single pot master cylinder this car left the factory with. They were horrible.
Don't worry Feet's; firstly, I'm not going to be jacknifed in the middle of the road, and secondly, your little car isn't going to squash me like a grape!
for the record, I have nothing against you building your car as you like with 16" brakes if that's what you choose. The point I'm making is that you don't need that to be safe driving amongst traffic.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870614
12/07/10 10:06 AM
12/07/10 10:06 AM
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Joined: Dec 2004
Posts: 5,278 San Jose, California
DennisH
Vacation
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Vacation
Joined: Dec 2004
Posts: 5,278
San Jose, California
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11" Hemi Drums all the way around on the 69 Coronet. www.praisedynobrake.com kit. Adequate braking performance. Push on them and you stop. Don't drive like a gdam fool and close on stopped traffic 5 times in a row and all is well.
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Re: So, how much braking do you really need?
[Re: Kirby]
#870617
12/07/10 01:09 PM
12/07/10 01:09 PM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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Quote:
Um- I'm thinking it would have been great to have 4 wheel disks in the Barracuda. Since when is having more stopping power a bad thing?
Exactly.. Everyone thinks more power is better, why not the biggest possible brakes...
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Re: So, how much braking do you really need?
[Re: hooziewhatsit]
#870618
12/07/10 02:09 PM
12/07/10 02:09 PM
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Joined: Dec 2006
Posts: 3,533 Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
Quote:
Well the comment made was "the best way to improve an old cars braking"....and ABS does not improve braking. If you're saying that braking with non-locked wheels is better than locked wheels, then yes of course it is, I doubt anyone is arguing that. But it doesn't take ABS to avoid locked wheels - proper set up and threshold braking.
ABS makes stopping faster in panic situations for people who haven't practiced panic braking and keeping the brakes right at that threshold. Every winter on an empty stretch of slick road I'll practice how fast I can punch the brakes and stay on the edge of locking them up.
The current set up on my truck ('72 W200, discs all the way around), I can't lock up the fronts. But that may be more due to the 32s and dry pavement This spring I'll get a pressure gauge and do some more testing.
I don't doubt that you guys can stop your vehicles better than an average dummy in your vehicle standing on the pedal with the wheels locked.
The question is - can you stop your vehicle faster than it could if it had ABS? I've not met a human being yet that could modulate braking individually to 4 wheels with one brake pedal. Although I've not met everybody yet.
Overall, I'm always amazed at the $$ some guys will spend on their car but refuse to at least upgrade to OEM discs.
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Re: So, how much braking do you really need?
[Re: Fury Fan]
#870619
12/07/10 07:50 PM
12/07/10 07:50 PM
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Joined: Jan 2003
Posts: 1,756 London, England
Gavin
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,756
London, England
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Quote:
Quote:
Quote:
Well the comment made was "the best way to improve an old cars braking"....and ABS does not improve braking. If you're saying that braking with non-locked wheels is better than locked wheels, then yes of course it is, I doubt anyone is arguing that. But it doesn't take ABS to avoid locked wheels - proper set up and threshold braking.
ABS makes stopping faster in panic situations for people who haven't practiced panic braking and keeping the brakes right at that threshold. Every winter on an empty stretch of slick road I'll practice how fast I can punch the brakes and stay on the edge of locking them up.
The current set up on my truck ('72 W200, discs all the way around), I can't lock up the fronts. But that may be more due to the 32s and dry pavement This spring I'll get a pressure gauge and do some more testing.
I don't doubt that you guys can stop your vehicles better than an average dummy in your vehicle standing on the pedal with the wheels locked.
The question is - can you stop your vehicle faster than it could if it had ABS? I've not met a human being yet that could modulate braking individually to 4 wheels with one brake pedal. Although I've not met everybody yet.
Overall, I'm always amazed at the $$ some guys will spend on their car but refuse to at least upgrade to OEM discs.
I'd venture to say it would be unusual in the extreme for four wheels to lock at the same time - i.e. ABS will not usually need to modulate 4 brakes at the same time. If it does, the driver probably buried the pedal in a limited traction situation (e.g. ice) and maybe shouldn't be out in those conditions! Don't get me wrong, I'm not against ABS per se, but the suggestion was made that ABS would improve braking, which is not the case. Is it useful in some circumstances - yes. Would I pay a lot of money to retrofit it to my car, no way, I could achieve much more worthwhile improvements (braking or elsewhere) for the $$. Plus I don't generally take out my classic Mopar when it is sheet ice everywhere (actually I don't take it out at all while it is still in bits ).
Under normal conditions with a well set up system - yeah I'd take on an ABS system and not expect to lose out.
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Re: So, how much braking do you really need?
[Re: Keith Black®]
#870621
12/08/10 12:48 PM
12/08/10 12:48 PM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
Banned. Forever.
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Banned. Forever.
Joined: Apr 2007
Posts: 2,327
Glendale, AZ
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4 wheel drums on my Charger. Thats what is staying on it. Been to the track more times than I can count, and street driven almost every day. Never had a problem. To me, it stops well
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870622
12/08/10 01:39 PM
12/08/10 01:39 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Quote:
Don't worry Feet's; firstly, I'm not going to be jacknifed in the middle of the road, and secondly, your little car isn't going to squash me like a grape!
for the record, I have nothing against you building your car as you like with 16" brakes if that's what you choose. The point I'm making is that you don't need that to be safe driving amongst traffic.
I guess you've never seen a travel trailer on it's side after the driver ran over the moron that cut in front of him. The really nasty part is when another car slams into the roof of the overturned pickup. That makes for a nasty mess involving the highway shut down for hours and a visit by the coroner. Needless to say, they weren't home for the holidays.
Properly set up drum brakes will feel great until you get into a car with properly set up dic brakes. Either arrangement will work for the vast majority of the muscle car crowd. For those of us with a more spirited driving style only the discs will do. That doesn't mean we're a nusiance on the highway. I do enjoy playing a bit when there's nobody around. My daily commute has put me in situations where GOOD brakes saved my bacon. When the guy entered the freeway and hit the left lane between 15 and 20 mph while I was moving along at 65 mph things got... puckery. I was able to slow the hot rod down but couldn't see the guy's tail lights over my hood. That was close. It's also just one of the many idiots I have to deal with on the roads.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: 69L78Nova]
#870623
12/08/10 01:56 PM
12/08/10 01:56 PM
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Joined: Feb 2003
Posts: 1,024 In the twisties
RokketRide
super gas
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super gas
Joined: Feb 2003
Posts: 1,024
In the twisties
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Quote:
4 wheel drums on my Charger. Thats what is staying on it. Been to the track more times than I can count, and street driven almost every day. Never had a problem. To me, it stops well
Wrong track for this discussion.
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Re: So, how much braking do you really need?
[Re: RokketRide]
#870625
12/08/10 07:42 PM
12/08/10 07:42 PM
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Joined: Dec 2004
Posts: 5,278 San Jose, California
DennisH
Vacation
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Vacation
Joined: Dec 2004
Posts: 5,278
San Jose, California
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Quote:
Quote:
4 wheel drums on my Charger. Thats what is staying on it. Been to the track more times than I can count, and street driven almost every day. Never had a problem. To me, it stops well
Wrong track for this discussion.
Wrong track? Cars with air bags and traction logic are safer too. Better just park the old cars. After driving my modern Mopars w/modern brakes, I transition to the 69 w/11" hemi drums.
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Re: So, how much braking do you really need?
[Re: DennisH ]
#870627
12/08/10 08:30 PM
12/08/10 08:30 PM
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Joined: Feb 2003
Posts: 1,024 In the twisties
RokketRide
super gas
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super gas
Joined: Feb 2003
Posts: 1,024
In the twisties
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Quote:
Quote:
Quote:
4 wheel drums on my Charger. Thats what is staying on it. Been to the track more times than I can count, and street driven almost every day. Never had a problem. To me, it stops well
Wrong track for this discussion.
Wrong track? Cars with air bags and traction logic are safer too. Better just park the old cars. After driving my modern Mopars w/modern brakes, I transition to the 69 w/11" hemi drums.
Yes wrong track. I dont see the need for your comment of overstatement when you misunderstand the context. Go ahead and drive a 4-drum car at the strip all you like, you only have to stop once.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870628
12/08/10 08:48 PM
12/08/10 08:48 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
As the OP, can I cancel this thread? I don't know how though. I have learned all I need to know, and it's definitely going south.
Nope, you can PM a moderator though and ask.
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Re: So, how much braking do you really need?
[Re: feets]
#870629
12/09/10 10:19 AM
12/09/10 10:19 AM
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Joined: Dec 2006
Posts: 3,533 Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
Properly set up drum brakes will feel great until you get into a car with properly set up disc brakes. Either arrangement will work for the vast majority of the muscle car crowd. ... My daily commute has put me in situations where GOOD brakes saved my bacon.
These 3 sentences by Feets sum it all up IMHO.
And as someone else mentioned, I also have had some drumbrake cars that stopped well (and some that didn't). But I have never had a discbrake car stop bad.
I have one drumbrake car left, and I drive it only on low-speed errands near the house - so I can drive it like a baby carriage.
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Re: So, how much braking do you really need?
[Re: feets]
#870630
12/09/10 11:57 AM
12/09/10 11:57 AM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Properly set up drum brakes will feel great until you get into a car with properly set up dic brakes. Either arrangement will work for the vast majority of the muscle car crowd. For those of us with a more spirited driving style only the discs will do.
...The majority of the resto/musclecar crowd is content to armchairing it at shows, or parade driving, so they're content with drum brakes, and can't comprehend the need for discs, or even 4 wheel discs, or OD transmissions for that matter as well,.....for those of us who enjoy putting the speedometer in the triple digits on the road or track, 4 wheel discs, and large capacity rotors/calipers are mandatory
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Re: So, how much braking do you really need?
[Re: DAYCLONA]
#870631
12/09/10 12:11 PM
12/09/10 12:11 PM
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Joined: Jan 2003
Posts: 8,936 Holly/MI
Dean_Kuzluzski
master
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master
Joined: Jan 2003
Posts: 8,936
Holly/MI
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Nobody mentioned yet.......... the REAL problem with retrofitting ABS onto a non-original application is the software development required for the "controller" to read and respond to the vehicles weight and suspension. Not to mention most systems incorporate a "fast shock" system too with sensors know as "pitch" and "yaw" sensors. I agree, the factory drums are for the more "relaxed" crowd. Once my old 69 Rr started running low 13's, playing around out on the boulevards got a bit too hair raising to not upgrade. And keeping up with the morning traffic on the interstate was living on borrowed time. Not worth the risk of wadding my old ride after all the work. Going overkill is another macho deal. Cool for some, not necessary for me. So to speak, I buy enough truck to haul the load, the factory Mopar big brakes and an adjustable prop valve is very adaquate for my lightened B-body (3440 lbs). But I only do my go fast driving in a straight line.
R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
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Re: So, how much braking do you really need?
[Re: Mike H]
#870632
12/09/10 12:34 PM
12/09/10 12:34 PM
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Joined: Apr 2010
Posts: 1,216 Under My Car
Mopar_Country
pro stock
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pro stock
Joined: Apr 2010
Posts: 1,216
Under My Car
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Well, I guess it all depends on WHAT you are doing with the car. With that said for the person just out cruising, driving defensively and obeying the traffic laws "properly" maintained drum brakes should be fine. There are several factors involved: 1- being quality shoes and properly surfaced drums 2- being how well the hydraulic system is maintained, brake fluid loves moisture in the short term up to 2% of your fluid can be water in the long term if not changed at least annually can be up to 8%, now that's a lot of water to have in your system and 3- tire width. A narrow tire can allow lockup whereas a wider tire that grips the road better will tend to turn more in a harder braking situation thus alleviating some lockup. So again if you are just a normal Sunday driver you should be fine with a drum system that is well maintained. IF you are in situations where repeated braking is required then disc/disc or disc/drum is THE way to go. 80% of your braking power is in the front. Through research and development disc has been proven overwhelmingly better than drum simply because they can and will dissipate heat better. Heat is your enemy. My car has OEM disc/drum and for a normal driver I find it adequate. IF I were to road race or I lived in an area where I had to do repeated stops in traffic I would at the very least upgrade the front disc to something more modern as there capabilities of removing heat are much better. Just my
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Re: So, how much braking do you really need?
[Re: DAYCLONA]
#870635
12/09/10 01:58 PM
12/09/10 01:58 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
...The majority of the resto/musclecar crowd is content to armchairing it at shows, or parade driving, so they're content with drum brakes, and can't comprehend the need for discs, or even 4 wheel discs, or OD transmissions for that matter as well,.....for those of us who enjoy putting the speedometer in the triple digits on the road or track, 4 wheel discs, and large capacity rotors/calipers are mandatory
Proporationing valve mounted under the dash which helps this car with factory Disc/ drum brakes perform great. I can lock all four at the same time.
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870638
12/09/10 02:46 PM
12/09/10 02:46 PM
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Joined: Dec 2003
Posts: 10,938 Spokane Valley, WA
Big Bad Bee
I Live Here
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I Live Here
Joined: Dec 2003
Posts: 10,938
Spokane Valley, WA
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Don't drive in flipflops! It's not safe when braking!!! Yep! It's winter! I can't imagine stopping this thread. Great information and thoughts here. I have been driving a Neon ACR for 8 years. I can't imagine how BAD my superbee's 11.75 factory front disks and rear drums are going to feel, not to mention the 1970 power steering, after ripping around in a car that handles like it's on rails and stops on a tick hair. "Sailing, sailing, over the bounding main!"... LOL There's no replacement for displacement. The term works for engine capacity AND brakes!
I’m listening.
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Re: So, how much braking do you really need?
[Re: OzHemi]
#870639
12/09/10 03:08 PM
12/09/10 03:08 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Safety footwear on too.
tie shirt, shorts and flip flops, what else is there safety wise?
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870640
12/09/10 06:33 PM
12/09/10 06:33 PM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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It's the total package of suspension, brakes and tires that make the cars funner to drive & safer to enjoy.
I put the 11 3/4 police/taxi rotors with quality pads on the front and Dr Diff's 2007 Mustang Cobra R discs on the rear of my 1968 & 1970 Barracudas.
I've had the '68 out for thorough field testing and the package of upgrades has paid off with huge dividends in both fun and safety.
It's the brakes working with the combo! Bigger tires, swaybars, frame connectors, Koni's and these relatively small disc brakes transformed my '68 into daily driver that is not only vastly safer to drive, but way more fun on this wonderful system of roads we have here in the states.
The '68 had fully rebuilt 9 inch drums when I got it. I drove it for 3 weeks like that, and almost wrecked it three times because it just didn't want to stop at normal speeds. I suppose I was driving like I drive modern cars, but it just wasn't in the same legue as the rest of the cars on the road with those tiny drums.
I've yet to encounter another car or driver on the road that will even attempt to stay with it into the twisties. I know they are out there, but after driving over Highway 88 in the Sierra's from Nevada to California and from San Jose to Santa Cruz over Highway 17 dozens of times, no one has even come close to staying with that old slant 6 a-body in when the road gets twisty.
I know there are plenty of guys, gals and cars out there that could smoke me, but I haven't run into them yet. I'm just saying what a nice, well-thought-out, Moparts educated guy can do with our old cars. Thanks for the schooling Team Moparts!
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: So, how much braking do you really need?
[Re: feets]
#870641
12/09/10 06:48 PM
12/09/10 06:48 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
Quote:
Don't worry Feet's; firstly, I'm not going to be jacknifed in the middle of the road, and secondly, your little car isn't going to squash me like a grape!
for the record, I have nothing against you building your car as you like with 16" brakes if that's what you choose. The point I'm making is that you don't need that to be safe driving amongst traffic.
I guess you've never seen a travel trailer on it's side after the driver ran over the moron that cut in front of him. The really nasty part is when another car slams into the roof of the overturned pickup. That makes for a nasty mess involving the highway shut down for hours and a visit by the coroner. Needless to say, they weren't home for the holidays.
Properly set up drum brakes will feel great until you get into a car with properly set up dic brakes. Either arrangement will work for the vast majority of the muscle car crowd. For those of us with a more spirited driving style only the discs will do. That doesn't mean we're a nusiance on the highway. I do enjoy playing a bit when there's nobody around. My daily commute has put me in situations where GOOD brakes saved my bacon. When the guy entered the freeway and hit the left lane between 15 and 20 mph while I was moving along at 65 mph things got... puckery. I was able to slow the hot rod down but couldn't see the guy's tail lights over my hood. That was close. It's also just one of the many idiots I have to deal with on the roads.
Of course I've seen trucks and trailers turned over many times; mine is a truck mounted camper not a trailer so I can't jacknife.....I was being semi faceceous about the idea that I'd be worried about your car hurting my truck which weighs 3x as much.
My friend Mark has a '62 'Vette with 11" drums on all 4 corners and I guarantee his stopping distance is shorter than many disc brake equipped SUV's and RV's that weigh 2x, 3x or more. I'm sure my 2008 ZX6R can stop quicker than your car, but it'd be silly to suggest your brakes aren't good enough or safe, right?
Ultimately we agree, you said it: " either arrangement will work for the vast majority of the musclecar crowd."
My POINT (again) is that there are many trucks, rv's and other vehicles on the road that have far longer stopping distances than a drum brake musclecar. You don't NEED 14" 4 wheel disks to be safe to drive on the road and I'm perfectly safe driving my truck and camper. If we all needed that level of braking to survive, then we should all drive new SRT-8's or 'Vettes and no truck or RV should be allowed on the public road system.
Nothing wrong with having as much brakes as you like but I strongly object to the idea that stock brakes render the car "unsafe" or the idea that the only cars that should have stock brakes are unused "trailer queens" (I'm responding to several other posters, not necessarily you on this sentiment)
Roadracing; fine, definitely get the big brakes. And as far as "spirited driving" goes; we all do it to some extent but triple digit speeds on public roads tend to get one in alot of trouble these days.
&
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870642
12/09/10 07:12 PM
12/09/10 07:12 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
And as far as "spirited driving" goes; we all do it to some extent but triple digit speeds on public roads tend to get one in alot of trouble these days.
&
Dave
Yes, one must be careful on public roads, except when your on a road with no signs, no cops, no traffic, no nothing except asphalt. Then you just gotta do what you gotta do.
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Re: So, how much braking do you really need?
[Re: Challenger 1]
#870643
12/09/10 09:26 PM
12/09/10 09:26 PM
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Joined: Mar 2006
Posts: 253 Orange County, CA
Mike H
OP
enthusiast
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OP
enthusiast
Joined: Mar 2006
Posts: 253
Orange County, CA
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Actually, this has been a great thread, and I am to be heartily commended for coming up with the topic. You may show your appreciation by sending me car parts. Or paypal.
Here is what I've learned so far; 1) Four wheel drums are more than adequate for nearly all driving situations you are likely to encounter while sober 2) Factory drums are marginal at best in any situation 3) You stand a 90% chance of ending up in a wheelchair just driving a drum-brake car to the store to get milk 4) Factory drum brakes attract overturned campers like a trailer park draws tornados. Or something like that. I didn't follow that part real well. Got it!
I also learned: 5) Big disc setups are for looks 6) Big disc setups are indispensable 7) The bigger the discs, the quicker the jump to light speed 8) You can avoid speeding tickets if your rotors are big enough and, 9) with big enough brakes, and $23K of chassis and suspension upgrades,our mopars can be made to handle as well as a Corolla!
So whose system should I buy; Mirkwood, Bimbo, or Bear?
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Re: So, how much braking do you really need?
[Re: Mike H]
#870645
12/09/10 10:58 PM
12/09/10 10:58 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Quote:
Actually, this has been a great thread, and I am to be heartily commended for coming up with the topic. You may show your appreciation by sending me car parts. Or paypal.
Here is what I've learned so far; 1) Four wheel drums are more than adequate for nearly all driving situations you are likely to encounter while sober 2) Factory drums are marginal at best in any situation 3) You stand a 90% chance of ending up in a wheelchair just driving a drum-brake car to the store to get milk 4) Factory drum brakes attract overturned campers like a trailer park draws tornados. Or something like that. I didn't follow that part real well. Got it!
I also learned: 5) Big disc setups are for looks 6) Big disc setups are indispensable 7) The bigger the discs, the quicker the jump to light speed 8) You can avoid speeding tickets if your rotors are big enough and, 9) with big enough brakes, and $23K of chassis and suspension upgrades,our mopars can be made to handle as well as a Corolla!
So whose system should I buy; Mirkwood, Bimbo, or Bear?
TOOOO funny! I gotta go peee! True story. Flat towed my 63 Max Wedge Plymouth ( all drum brake car )from the Chicago area to Union Grove with my Dads 57 Chrysler 300. After a days worth of racing, we started flat towing home. Didn't get 5 miles from the track when my Dads 300 blew a wheel cylinder. Towed the rest of the way home ( about 75 miles ) using the brakes on my Plymouth to stop both cars! You could literally sizzle spit on the wheels on my Plymouth, but it never ran out of brakes. Had the guy driving my Dads 300 shittin bricks at every stop - oh what fun!!
Fastest 300
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Re: So, how much braking do you really need?
[Re: SomeCarGuy]
#870648
12/10/10 02:09 AM
12/10/10 02:09 AM
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Joined: Nov 2006
Posts: 1,074 Manitoba Canada
67autocross
super stock
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super stock
Joined: Nov 2006
Posts: 1,074
Manitoba Canada
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The car that won the Optima Street Car Challenge last month was a 69 Camaro with ABS brakes. I think it went from 0 to 60mph and back to 0 in 6.4 sec.
A new iron curtain drawn across the 49th parallel
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Re: So, how much braking do you really need?
[Re: 67autocross]
#870649
12/10/10 02:21 AM
12/10/10 02:21 AM
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Joined: Feb 2003
Posts: 1,024 In the twisties
RokketRide
super gas
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super gas
Joined: Feb 2003
Posts: 1,024
In the twisties
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Quote:
The car that won the Optima Street Car Challenge last month was a 69 Camaro with ABS brakes. I think it went from 0 to 60mph and back to 0 in 6.4 sec.
These are the front brakes on that car, there is a whole build thread on lateral-g
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Re: So, how much braking do you really need?
[Re: Mike H]
#870650
12/10/10 01:33 PM
12/10/10 01:33 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
Actually, this has been a great thread, and I am to be heartily commended for coming up with the topic. You may show your appreciation by sending me car parts. Or paypal.
Here is what I've learned so far; 1) Four wheel drums are more than adequate for nearly all driving situations you are likely to encounter while sober 2) Factory drums are marginal at best in any situation 3) You stand a 90% chance of ending up in a wheelchair just driving a drum-brake car to the store to get milk 4) Factory drum brakes attract overturned campers like a trailer park draws tornados. Or something like that. I didn't follow that part real well. Got it!
I also learned: 5) Big disc setups are for looks 6) Big disc setups are indispensable 7) The bigger the discs, the quicker the jump to light speed 8) You can avoid speeding tickets if your rotors are big enough and, 9) with big enough brakes, and $23K of chassis and suspension upgrades,our mopars can be made to handle as well as a Corolla!
So whose system should I buy; Mirkwood, Bimbo, or Bear?
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: Mike H]
#870651
12/10/10 01:44 PM
12/10/10 01:44 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Here's a snippet from a magaine reviewing the 69 GTX: Quote:
For 1969, the GTX got a little sportier with the optional Air Grabber cold air induction system (operated via a pull-tab beneath the dash) and matte-black stripe kit – both found on the hood of this featured GTX example. Testing of the big Belvedere garnered a 7.1-second 0-to-60 time and a 179-foot 65-to-0 stopping distance. While not on par with the lighter and less-optioned Road Runner, the GTX was truly “glued together well.”
The latest review of the 392 SRT8 Challenger showed a 4250 lb car stopping from 60 mph in 114 feet.
Drum brakes won't kill you. They'll serve you well for many years. Disc brakes (and larger ones at that) will serve you just as well but hold an extra safety margin as well.
You have insurance on your car. You don't expect to have a crash but it's worth the price if there is an accident. To me, brakes are the same way. Basic stuff works but I like the extra capacity.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: feets]
#870653
12/10/10 02:16 PM
12/10/10 02:16 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
Here's a snippet from a magaine reviewing the 69 GTX:
Quote:
For 1969, the GTX got a little sportier with the optional Air Grabber cold air induction system (operated via a pull-tab beneath the dash) and matte-black stripe kit – both found on the hood of this featured GTX example. Testing of the big Belvedere garnered a 7.1-second 0-to-60 time and a 179-foot 65-to-0 stopping distance. While not on par with the lighter and less-optioned Road Runner, the GTX was truly “glued together well.”
The latest review of the 392 SRT8 Challenger showed a 4250 lb car stopping from 60 mph in 114 feet.
Drum brakes won't kill you. They'll serve you well for many years. Disc brakes (and larger ones at that) will serve you just as well but hold an extra safety margin as well.
You have insurance on your car. You don't expect to have a crash but it's worth the price if there is an accident. To me, brakes are the same way. Basic stuff works but I like the extra capacity.
That all makes sense.
For some more context; A 2010 diesel pickup shootout lists the 60mph stopping distances of a new 4 wheel disk diesel pickup (empty with exhaust brake activated) at 146' - 153'. Obviously older trucks, trucks without exhaust brakes and trucks with a load would be significantly higher. Keeping in mind the 5mph speed difference and the tire difference, the '69 GTX isn't that far off a modern pickup truck.
FWIW, the stopping distance of a fully loaded tractor trailer truck is listed at 525' from 65mph.
know what your vehicles capabilities are and drive accordingly.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: RokketRide]
#870656
12/10/10 04:28 PM
12/10/10 04:28 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Quote:
In all fairness, the 69 GTX in that magazine test was rolling on ritz crackers. New challenger has some serious rubber under her.
However, a huge difference is the new Chally's braking performance is repeatable all day.
The GTX was the hot rod of it's day and the Challenger is the same. Tire technology does play a significant role.
Here's more pedestrian examples from Motor Trend: 2006 Buick Lucerne: 3795 lbs, 235/55-17 tires, 60-0 in 136 ft. 2006 Mercury Montego AWD: 3954 lbs, 225/55-18 tires, 60-0 in 127 ft.
These cars are similar in size and weight to the GTX. The tires are skinnier than what the GTX had but are obviously made from new compounds. Both of the cars had disc brakes between 11.0 and 12.0 inches in diameter front and rear.
An interesting comparison are these two cars: 2006 Chrysler 300 Touring: 3776 lbs, 215/65-17 tires, 12.6" discs front and rear, 60-0 in 134 ft 2005 Chrysler 300 SRT8: 4190 lbs, 245/45-20 and 255/45-20 tires, 14.2" front discs, 13.8" rear discs, 60-0 in 113 ft
*edit* I did a little fiddling with the numbers. The difference between the 300 Touring and 300 SRT8 is 11369 lb/ft and the brakes are able to stop the greater mass in 21 fewer feet.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: feets]
#870657
12/10/10 06:54 PM
12/10/10 06:54 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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A couple additional clarifications;
- 1) I wasn't comparing the GTX to a modern performance car, but to the average modern vehicle as I was commenting on the issue of safety of these cars on the road rather than a comparison of braking systems in high performance applications.
- 2) The 179' for the GTX is at 65mph while the other vehicles are at 60mph. Using a mathematical formula and changing the GTX's speed from 65 to 60 mph gives us a figure of 153' which just isn't all that bad (especially with bias ply skinnies) and compares well to the average car/truck/SUV on the road today.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870658
12/10/10 07:14 PM
12/10/10 07:14 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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The numbers from 60 mph would be about the same as the diesel full sized trucks mentioned earlier. The "average" car would be the 300 Touring and Buick Lucerne I mentioned earlier. They stopped more than a car length. That's the difference between scaring the poo out of the kid darting into the street and smearing him into the ground for twenty feet.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870661
12/10/10 11:58 PM
12/10/10 11:58 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Quote:
We're arguing in circles now. The fact you mention: that the GTX's 60' is the same as my diesel pickup is the point I was making.
I have yet to hear anyone say that a new pickup is unsafe on the road and the GTX has basically the same stopping distance......that is all.
....you could now try to convince me it isn't safe to drive my truck anymore, I suppose.
I wasn't arguing. I was drawing a comparison. Go read it again without your angst colored glasses and you'll see that nothing bad was said about your poor widdle truck. I happen to know that my "big honkin diesel" takes a lot longer to stop than my LHS or the hot rod. Unfortunately, it was unable to stop in time on four separate occasions with me behind the wheel. None of them were my fault and I hope people quit being stupid in front of my truck. Honestly, I know for certain that no car on the road would have stopped quickly enough to avoid one of them. 4 wheel ABS would have been required for the most damaging collision (92 D250 has rear ABS only). The other two minor issues could have easily been avoided if the truck had stopped a few feet sooner. There have been several instances where I was glad I was not in my truck because I would have run over another idiot.
One of those collisions listed above left me with a bruised kidney from the impact. That's where the softer collision areas in the newer cars and trucks come into play. A 92 D250 does not have a crumple zone or energy absorbing features built into the frame. The hard frame rails on the truck hit right on the impact bars in the doors of the Camry. There was no structure to absorb the collision energy. Hard on hard hurts. However, that's another discussion.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: So, how much braking do you really need?
[Re: DennisH ]
#870664
12/11/10 09:25 AM
12/11/10 09:25 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Can't read this anymore. I'm scared to drive the R/T now. With those killer drums and all.
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Re: So, how much braking do you really need?
[Re: Paladin]
#870666
12/11/10 02:24 PM
12/11/10 02:24 PM
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Joined: Mar 2005
Posts: 1,445 Sterling Heights, Michigan 483...
daniel_depetro
pro stock
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pro stock
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
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Quote:
I have driven a lot of old Mopars in my time, and several of them are far above the handling capabilites of a Suburban or a Camry . The torsion bar front suspension was hailed as the basis of some of the best handling American cars of their day, a fact which is still repeated by people who are surprised when they drive a properly aligned and cared for old Mopar with modern rubber on the ground.
I'll take all the pointers I can get then, because my independant front suspension 2wd Dodge Ram (2001) handles about the same as my 1974 Plymouth Duster. Both vehicles have basically the same equipment: factory 'upgraded' suspensions (Duster = A/C car / truck = tow pkg. vehicle), new MOOG bushings & ball joints, new radial tires, new Monroe gas shocks, fresh alignments, and both vehicles went +1" on wheel diameter while keeping the overall tire diameter the same as stock... As far as being as good as a modern car... Maybe once the suspension is upgraded a bit?!? Granted my old cars don't handle as bad as most people just assume they do, however they certainly don't handle nearly as good as any of my newer cars do either.
On the other hand I have 4-wheel disk brakes on my Duster. Nothing fancy here, just the original factory units up front and I converted the rears using everything from a 1995 Jeep Grand Cherokee. Basically a bolt on deal and only cost $200.00 for mint parts off a salvage yard Jeep and brand new upgraded premium brake pads & new brake hoses. This is about what I was looking at to replace everything to rebuild my well worn out drum brakes back there> It was also cheaper then upgrading to larger rear drums. The car has the 8.25" rear axle in it. I did not bother to hook up the P-brake.
1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)
1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)
1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)
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Re: So, how much braking do you really need?
[Re: RokketRide]
#870667
12/11/10 03:01 PM
12/11/10 03:01 PM
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Joined: Jan 2008
Posts: 299 East Brunswick, NJ
finadk
enthusiast
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enthusiast
Joined: Jan 2008
Posts: 299
East Brunswick, NJ
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You can never have too much fuel or too much brakes. Unless of course you are on fire then you always have too much fuel and not enough brakes. Scott
Scott
1956 Dodge Custom Royal Lancer (408 Stroker, 4 Wheel Disc Brakes, Rack & Pinion, 6 speed)
2002 Dodge Ram 1500 Quad Cab
1976 Corvette
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Re: So, how much braking do you really need?
[Re: RokketRide]
#870668
12/11/10 03:10 PM
12/11/10 03:10 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Quote:
I could be wrong here, but it sounds like you just demonstrated that a GTX with all drums brakes as poorly as a big honkin diesel truck.
Nobody is going to say that big honkin diesel trucks are unsafe to drive, because they are driven like big honkin diesel trucks... or at least I hope they are.
No I just demonstrated that a GTX with all drums brakes as WELL as my brand new, 4 wheel disk equipped Ram pickup.
....and hopefully the GTX is driven like a drum brake GTX too.
Feets;
- Don't worry about me; I'm quite happy driving my "poor widdle truck" as you call it.
Obviously some of you guys just can't get your head around the point I was making: There is nothing inherently unsafe about driving around a '60's car with properly set up drum brakes as long as you don't think you're in a Viper.
Oh, and your '92 Ram has horrible brakes compared to a 3rd gen truck.....maybe you need a new truck and you wouldn't have crashed?
Anyhow, I'm done with this one: anyone who can't understand what I've been saying isn't going to at this point.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: So, how much braking do you really need?
[Re: DPelletier]
#870669
12/11/10 10:47 PM
12/11/10 10:47 PM
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Joined: Feb 2003
Posts: 1,024 In the twisties
RokketRide
super gas
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super gas
Joined: Feb 2003
Posts: 1,024
In the twisties
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Quote:
There is nothing inherently unsafe about driving around a '60's car with properly set up drum brakes as long as you don't think you're in a Viper.
Exactly. In fact you can even take out the word inherently.
I dont think anyone had any trouble at all with this point. Its always been about how its being driven.
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Re: So, how much braking do you really need?
[Re: Twostick]
#870671
12/12/10 03:30 AM
12/12/10 03:30 AM
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Joined: Mar 2005
Posts: 1,445 Sterling Heights, Michigan 483...
daniel_depetro
pro stock
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pro stock
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
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Yay, it'll never die!
1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)
1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)
1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)
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Re: So, how much braking do you really need?
[Re: TC@HP2]
#870672
12/12/10 04:02 AM
12/12/10 04:02 AM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
I'll third that and add that I've read tests where in side by side comaprisons, profesional drivers can outdrive the ABS computer.
I don't doubt that. However the average person out there has very little experience practicing threshold braking especially on different types of surfaces. Expecting them to put that into practice in an emergency situation is beyond what you can expect out of the average driver.
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Re: So, how much braking do you really need?
[Re: DaytonaTurbo]
#870674
12/14/10 09:29 AM
12/14/10 09:29 AM
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Joined: Jan 2003
Posts: 1,756 London, England
Gavin
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,756
London, England
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Quote:
Quote:
I'll third that and add that I've read tests where in side by side comaprisons, profesional drivers can outdrive the ABS computer.
I don't doubt that. However the average person out there has very little experience practicing threshold braking especially on different types of surfaces. Expecting them to put that into practice in an emergency situation is beyond what you can expect out of the average driver.
I agree that is true. But we are specifically talking here about people who know enough and care enough to want to spend money upgrading brake systems on old muscle cars. That means the demographic is someone who understands what a braking system is, how it works, what is good and bad, and presumably wants to drive it and use the improved braking capability. So all that said, I'd expect everyone who fits that category should be interested in setting up and testing their new system, and practicing max braking (otherwise why bother upgrading?). Short version - driving enthusiasts should not be average drivers......(in theory )
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Re: So, how much braking do you really need?
[Re: Moparmaniacc]
#870681
12/26/11 10:27 PM
12/26/11 10:27 PM
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Joined: Jan 2007
Posts: 7,664 IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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The MA "stop on a dime" articles cover upgrade using later 70's factory style parts. http://www.moparaction.com/Tech/archive.htmlDr Diff, Master Power brakes and others have complete packaged kits as well.
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Re: So, how much braking do you really need?
[Re: ahy]
#870682
12/27/11 09:43 AM
12/27/11 09:43 AM
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Joined: Aug 2003
Posts: 2,465 Answering the call of the wild
ThermoQuad
top fuel
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top fuel
Joined: Aug 2003
Posts: 2,465
Answering the call of the wild
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A drum brake car with the proper brake lining material will stop very well, repeatedly. Key words "proper lining material" which is not available at the autoparts store. Velvetouch and/or carbon metallic lining material should be used on all 4 corners. Velvetouch is hard to find theses days but it's out there. A disc brake equipped car with the proper brake material will stop very well, repeatedly. Key words "proper lining material" which is not available at the autoparts store. Velvetouch and/or carbon metallic lining material should be used on all 4 corners. Velvetouch is hard to find theses days but it's out there. Unless you want to put 17 inch wheels on your old cars there are mechanical limitations to what fits. I have been running hot laps for the last 20+ years on the road course with mopar disc brakes on 15 & 16 inch wheels. I have not crashed [yet] from overheating the brakes while running some very hot laps. The newest track ride is a big fat heavy 1970 Charger R/T. Top speed is limited 125mph on the straightaways because you need hp to push weight. It has the large rotors on the front with wilwood calipers, special compound wilwood pads, braided steel lines and high temp dot 4 fluid. On the rear is Dr Diff's set up for 15-16 inch wheels. 16x8 wheels. There is air ducted to the front brakes. There are no braking issues with the car. There were no braking issues with my old but very wicked pos 70 'Cuda either that was set up in a similar fashion except the 'Cuda had 11 inch rear drums and ran much faster [130 mph]than the Charger. Sessions are 50 minutes, track distance is 3.4 miles. 15-20 laps depending how fast you are. I think the brakes get tested. If you feel the need to cut 5 seconds off your lap times on a 45 year old car larger brakes and more stiffening to the car would be required. The laps times are already very acceptable. So there you have it, real world testing and results. The big fat Charger returns to Watkins Glen for more fun and adventure June 25-26, 2012.
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Re: So, how much braking do you really need?
[Re: Mike H]
#870684
01/02/12 02:06 AM
01/02/12 02:06 AM
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Joined: Jan 2005
Posts: 4,862 the frozen wastes...
Pale_Roader
Swears too much
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Swears too much
Joined: Jan 2005
Posts: 4,862
the frozen wastes...
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Quote:
I can't recall having any difficulty bringing my 69 340 Dart (manual drum brakes) down from 110+mph, many times. So what's the deal with the massive disk brake setups so popular today? Ten inch, 12", 14" rotors, 4 pad, 6 pad, what, 12 pad? I've never even ridden in a mopar that can handle as well as my wife's 90 Camry, or even our Suburban with my wife, kids and the dog in it. So I assume nobody's driving LeMans or Nurburgring. Where the heck are you guys driving that you need so much braking? Down a mineshaft?
I dont know what it is about my particular style ov driving, but when i 'drive', i drive very fast, and dont tend to slow in the corners. I've never had anything more than stock, factory 11" discs/11" or 10" drums on my cars, which are usually at the lightest possible end ov the scale for what they are, which helps. On some i've had 16" or 17" rims and the best HP high speed rated tires available (though i always buy them used, so they are older than new), and on others i've had 15" goodl ol' BFG's. I just dont seem to go through brakes like other people do. A LOT ov this comes down to driving style... Three different 'drivers' (ie: not people who just drive cars, or commute) will require three different levels ov braking.
On my current road race Challenger project, brakes are going to be a big priority. After i get it running, and a new suspension front to back, i'm getting 4 13" discs. No more compromise. I've been daily driving a 96 Mustang GT for years now, with 275/295/35/18 BFG G-Force KDW2's and stock brakes... and i'll tell you that car has made me appreciate good brakes... Because it DOESN'T HAVE ANY.
Between having to drive this terribly brake-challenged Mustang for years, and then driving a rented E-class Mercedes (supercharged) with GLORIOUS 14" discs all 'round... I'm sold on killer brakes. With that Mercedes i could just sail into corners at speed and not care one bit. No matter how fast the car in front was, come the corner he's on the brakes and i'm still on the throttle. I could never do that in the GT... or my old Mopars... I want that advantage. To say nothing ov safety.
That Mustang has also been in at least one accident that better brakes would have avoided. Even my stock braked crap tire Charger stops quicker.
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