Re: ANTI LOCK BRAKES
[Re: A/MP]
#2530177
08/01/18 08:26 PM
08/01/18 08:26 PM
|
Joined: Nov 2016
Posts: 200 Colorado
Bob J
enthusiast
|
enthusiast
Joined: Nov 2016
Posts: 200
Colorado
|
ABS for autocross can be a bonus or a curse. If it's hooked up the the rest of the car like my Porsche it's a curse as it pulls back the throttle and takes it out of sport mode. So you learn fast how to stay out of it. If it is a stand alone system it can help on the street. I don't think that it would be much help on a autocross course as you modulate the Brakes and toss the ass around, that is not good for ABS.
07 Porsche C2 997.1 6spd DD and SCCA Solo II SS 68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam 65 Chrysler 300 Convert. project 57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son 2003 Dodge Dakota R/T "DEAD"
|
|
|
Re: ANTI LOCK BRAKES
[Re: Supercuda]
#2530668
08/02/18 09:03 PM
08/02/18 09:03 PM
|
Joined: Nov 2016
Posts: 200 Colorado
Bob J
enthusiast
|
enthusiast
Joined: Nov 2016
Posts: 200
Colorado
|
Interesting maybe worth looking at
07 Porsche C2 997.1 6spd DD and SCCA Solo II SS 68 Plymouth GTX Convert. 493cu Hotkiss Wilwood Classic air, Building for Solo II Cam 65 Chrysler 300 Convert. project 57 Desoto 2dr. Firesweep 392 Hemi,Wilwood Project with son 2003 Dodge Dakota R/T "DEAD"
|
|
|
Re: ANTI LOCK BRAKES
[Re: jcc]
#2530848
08/03/18 10:08 AM
08/03/18 10:08 AM
|
Joined: Sep 2008
Posts: 656 Florida
CJD AUTOMOTIVE
mopar
|
mopar
Joined: Sep 2008
Posts: 656
Florida
|
I agree, however in some of these 6 figure $ plus, hey look at me 600+hp retromod cars, street driven by over the hill drivers I am not convinced can handle driving a 4 wheeled office chair, I would think the benefit of an aftermarket Bosch ABS would be a no brainer. When IMSA allowed the GTD cars to use ABS, the Bosch Motorsports unit, they improved their lap times by almost 3 seconds. In fact, even though they are considerably down on power and aero to the GTLM cars, they run close lap times. Yes I have it on my car, but my logic is simple. A set of tires cost $1500+. Flat spot 4 sets and the unit has paid for itself...with the benefit of faster lap times and better control.
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
|
|
|
Re: ANTI LOCK BRAKES
[Re: CJD AUTOMOTIVE]
#2530867
08/03/18 11:04 AM
08/03/18 11:04 AM
|
Joined: Dec 2003
Posts: 22,734 Bitopia
jcc
If you can't dazzle em with diamonds..
|
If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,734
Bitopia
|
Craig, if anybody here is flat spotting 4 sets of $1500 tires, they definitely should stay away from wheeled office chairs. My original thinking was hard street driven all weather, high dollar cars, to reduce cost of shunts and hospital bills. However your example works. So tell us, how complex/involved is it properly dialing in a custom aftermarket ABS system? Are there different selectable settings for track/street/etc use?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
|
|
|
Re: ANTI LOCK BRAKES
[Re: CJD AUTOMOTIVE]
#2531583
08/04/18 07:02 PM
08/04/18 07:02 PM
|
Joined: Jan 2003
Posts: 4,395 The Pale Blue Dot
Skeptic
master
|
master
Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
|
I agree, however in some of these 6 figure $ plus, hey look at me 600+hp retromod cars, street driven by over the hill drivers I am not convinced can handle driving a 4 wheeled office chair, I would think the benefit of an aftermarket Bosch ABS would be a no brainer. When IMSA allowed the GTD cars to use ABS, the Bosch Motorsports unit, they improved their lap times by almost 3 seconds. In fact, even though they are considerably down on power and aero to the GTLM cars, they run close lap times. Yes I have it on my car, but my logic is simple. A set of tires cost $1500+. Flat spot 4 sets and the unit has paid for itself...with the benefit of faster lap times and better control. What car are you running it on?
|
|
|
Re: ANTI LOCK BRAKES
[Re: A/MP]
#2531896
08/05/18 02:41 PM
08/05/18 02:41 PM
|
Joined: Jan 2003
Posts: 1,482 Lake Orion, MI
goldduster318
pro stock
|
pro stock
Joined: Jan 2003
Posts: 1,482
Lake Orion, MI
|
The systems itself doing ABS isn't that hard, other than the tone rings and the wheel speed sensors in the wheels.
The thing about it is you need to know a lot about your vehicle, especially if you're looking for a yaw-rate sensor, or any type of ESC. Then there's calibrating it. Probably not too hard to do for a big race team. The OE's spend at least a few months calibrating factory ABS (and years when you think about all the other features in modern cars)
Sounds like in the Bosch unit mentioned they are doing BTCS (Brake traction) and EBD (electronic brake force distribution). This can really help the balance on your car and therefore improve lap times.
You won't be able to use a modern one from a Charger or whatever because of the in-vehicle bus communication. Otherwise the hardware would be pretty adaptable.
'70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip
|
|
|
Re: ANTI LOCK BRAKES
[Re: jcc]
#2532179
08/06/18 10:34 AM
08/06/18 10:34 AM
|
Joined: Sep 2008
Posts: 656 Florida
CJD AUTOMOTIVE
mopar
|
mopar
Joined: Sep 2008
Posts: 656
Florida
|
Craig, if anybody here is flat spotting 4 sets of $1500 tires, they definitely should stay away from wheeled office chairs. My original thinking was hard street driven all weather, high dollar cars, to reduce cost of shunts and hospital bills. However your example works. So tell us, how complex/involved is it properly dialing in a custom aftermarket ABS system? Are there different selectable settings for track/street/etc use? The Bosch M4 Motorsports unit is identical to its OE counterpart, they differ only by programming. The M4 has 9 preprogrammed maps adjustable from a rotary switch (full wet to grippy dry). It also has 2 programmable maps. Just 2, so the 9 that the Bosch engineers preprogrammed are pretty damn good. When you set it up, you enter your car data, weight, tire size, CG, etc, etc. The included 3-axis G-sensor and wheel speed sensors are the input data to the unit. This is a Motorsports piece, so you have to have the Bosch Box II adaptor to connect to a laptop! That's another 1K. I'm running a Motec system on the 'Cuda, so I use the wheel speed data from Bosch unit to feed the Motec for Traction Control. I run a floater rear and big bearing hubs, so I machined the rears to accept a custom tone ring and made an adaptor that doubles as a seal retainer for the front:
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
|
|
|
Re: ANTI LOCK BRAKES
[Re: Skeptic]
#2532180
08/06/18 10:39 AM
08/06/18 10:39 AM
|
Joined: Sep 2008
Posts: 656 Florida
CJD AUTOMOTIVE
mopar
|
mopar
Joined: Sep 2008
Posts: 656
Florida
|
[/quote] What car are you running it on? [/quote] This one under construction!
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
|
|
|
Re: ANTI LOCK BRAKES
[Re: A/MP]
#2532207
08/06/18 11:43 AM
08/06/18 11:43 AM
|
Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
|
About to go away
Joined: Sep 2007
Posts: 14,889
up yours
|
As I said, not cheap. but that sure looks nice
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
|
|
|
Re: ANTI LOCK BRAKES
[Re: CJD AUTOMOTIVE]
#2532501
08/06/18 09:06 PM
08/06/18 09:06 PM
|
Joined: Nov 2004
Posts: 25,050 Texas
GoodysGotaCuda
5.7L Hemi, 6spd
|
5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
|
Craig, if anybody here is flat spotting 4 sets of $1500 tires, they definitely should stay away from wheeled office chairs. My original thinking was hard street driven all weather, high dollar cars, to reduce cost of shunts and hospital bills. However your example works. So tell us, how complex/involved is it properly dialing in a custom aftermarket ABS system? Are there different selectable settings for track/street/etc use? The Bosch M4 Motorsports unit is identical to its OE counterpart, they differ only by programming. The M4 has 9 preprogrammed maps adjustable from a rotary switch (full wet to grippy dry). It also has 2 programmable maps. Just 2, so the 9 that the Bosch engineers preprogrammed are pretty damn good. When you set it up, you enter your car data, weight, tire size, CG, etc, etc. The included 3-axis G-sensor and wheel speed sensors are the input data to the unit. This is a Motorsports piece, so you have to have the Bosch Box II adaptor to connect to a laptop! That's another 1K. I'm running a Motec system on the 'Cuda, so I use the wheel speed data from Bosch unit to feed the Motec for Traction Control. I run a floater rear and big bearing hubs, so I machined the rears to accept a custom tone ring and made an adaptor that doubles as a seal retainer for the front: That's fancy looking. I pickup undriven speed from the rotor vanes, works well.
|
|
|
|
|