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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355600
12/19/12 09:36 PM
12/19/12 09:36 PM
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Joined: Oct 2003
Posts: 1,409
Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Quote:
my goal is 10.90's and yes I am just in reach with my budget 
That's a start. now post a list off all your parts and I'm sure many on here can get you there.............
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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355602
12/20/12 05:07 PM
12/20/12 05:07 PM
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Joined: Aug 2003
Posts: 43,163
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,163
Bend,OR USA
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Quote:
my goal is 10.90's and yes I am just in reach with my budget
Your using a SB Mopar ,right? If so what parts, heads, block, stroke and compression and intake annd carb. size, are you starting with? That will help determine how much cam you need to get there
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355603
12/20/12 07:02 PM
12/20/12 07:02 PM
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Joined: Jan 2003
Posts: 6,139
Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,139
Melbourne , Australia
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Quote:
I know alot of people say go to a dyno but since I don't have time nor money just have to go off of what works for everyone else. I've seen some people post about the 590 mopar cam. My friend had this one cam that was like in the 570's that was a mopar cam and used to run his 383 for years at 7900 rpm and ran in the mid 10's. I was just wondering if these cams are really suitable for 7500-7900 rpm area under the right combo? Also was wondering maybe instead of going like a big 630 plus lift and just take a smaller cam like the 590 or smaller and adding the 1.6's roller rockers. I guess this combo work's out real nice from what I've seen, heard and read!I am also wanting to squeez more compression out. Is it worth buying special head gaskets to get another half a point of compression? or maybe just to some of us it is..
You need to get your engine apart to some degree to check a couple of things. First off, your piston to head clearance and secondly, how much valve to piston clearance you have. Whilst you're there you could put a degree wheel on your camshaft and get an idea of what you have. It's no good buying parts and discovering that they are not going to fit, or requires machining to get them to fit.
Whilst you're at it, if you haven't done so already, do a leak down and a compression test to check your engines health.
I personally don't see any point changing your camshaft until you have some idea of what it is. Going out and buying a 30+ y/o design Camshaft like a 0.590" Mopar Solid, or a camshaft with a more current design lobe could be throwing money away when the one that you have could get the job done.
I sound like a broken record, but putting the engine onto a Dyno is going to save you time, headaches, and in most cases $$$. After a test session you will know where your engine makes power and torque and just how much it actually makes. I have had friends and acquaintances in the past spend 12-18 months of racing and tuning and changing parts and get no where. They put the engine on a Dyno and determine they're pipes were too big, or they were 1000 rpm off on their converter or whatever.
In summary:
Check the engines Health (Leak down & Compression Test)
Determine what you're working with
Lastly, look at the car. Is your ignition system up to task, are you getting enough voltage to the ignition etc.
Converter? ( I personally think it's too big, and too low a stall speed)
Pipes? What size are you running?
I made some assumptions and ran a simulation in Pipemax
Peak power @ 6600 - 1 3/4" x 32"-34" primary, 3" x 17.6" Collector
Peak power @ 7200 - 1 3/4" x 29"-31.5" primary, 3" - 3.5" x 16" Collector
Alan Jones
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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355606
12/21/12 07:41 PM
12/21/12 07:41 PM
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Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
MIKES_DUSTER
master
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master
Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
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You already know MY opinion!!!!! What you have now is MORE than enough to get you into the 10's. If you do what ive told you already,RACE,TUNE,RACE,TUNE,RACE,TUNE,RACE,TUNE and RACE,TUNE!!!!!! Yes in that order!!!! 
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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355608
12/22/12 01:06 AM
12/22/12 01:06 AM
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Joined: Aug 2003
Posts: 43,163
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,163
Bend,OR USA
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Quote:
Yea you are probaly right mike. But motor still needs to be checked over. Something could be worn out and the parts have the potential just not able. There is a very long list of possibilities!!
Every body on here started out knowing nothing, if you have the ability to take the motor apart and inspect it to see if it is good or bad do that first  After doing the visual checks on the spark plugs, upper valve train,, leakdown test and so on then pull it down further If you don't have th tools or expertise, hire someone capable to teach you and instruct you on how to do the tear down and inspection, racing is not cheap and wrecking a car because of bad parts isn't cheap either  I've seen some auotshop instructors that weren't race car mechanics or engine guru so keep that in mind  Hands on training can be great, it can also be very expensive while your learning 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: I Need Opinions Please!!
[Re: Cab_Burge]
#1355609
12/22/12 01:26 AM
12/22/12 01:26 AM
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Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
MIKES_DUSTER
master
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master
Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
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Quote:
Quote:
Yea you are probaly right mike. But motor still needs to be checked over. Something could be worn out and the parts have the potential just not able. There is a very long list of possibilities!!
Every body on here started out knowing nothing, if you have the ability to take the motor apart and inspect it to see if it is good or bad do that first After doing the visual checks on the spark plugs, upper valve train,, leakdown test and so on then pull it down further If you don't have th tools or expertise, hire someone capable to teach you and instruct you on how to do the tear down and inspection, racing is not cheap and wrecking a car because of bad parts isn't cheap either I've seen some auotshop instructors that weren't race car mechanics or engine guru so keep that in mind Hands on training can be great, it can also be very expensive while your learning
Cab...From my understanding,the motor was put in last year and only raced a few times...Thats why I told him BEFORE he goes buying all this stuff and swapping things on/off,just race what you have and TUNE IT. Just tuning my old motor,I went from 13.3 to 12.07....My dad went from 11.4 to 10.70.
You wont know what the car will run if you keep changing things out before its tuned....Just playing with the suspension,you could gain a 1/2 a second. The car is capable of running 10's right now with what it has in it,it just needs tuning.
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Re: I Need Opinions Please!!
[Re: Sb Valiant]
#1355613
12/22/12 07:36 PM
12/22/12 07:36 PM
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Joined: Oct 2003
Posts: 1,409
Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Quote:
Some of this stuff can be done by some simple tests like a leak down tester or a compression tester. But it also won't tell me what the bearings are going to look like or how good of shape the valve springs are in. So that stuff is just going to have to be checked!!!
Good move.......... inspect it......
if is not broke don't fix it. just have fun..........
IIRC these pistons are real heavy. I would not try and RPM the bejeezuz out of it.....
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Re: I Need Opinions Please!!
[Re: 10.90 Racer]
#1355614
12/23/12 01:04 PM
12/23/12 01:04 PM
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Joined: Jul 2007
Posts: 653
Fort Worth, TX
Dago Red
mopar
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mopar
Joined: Jul 2007
Posts: 653
Fort Worth, TX
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Do yourself a favor: pull the bullet, find out EXACTLY what's in it.  Replace the worn out, update the obsolete.  Check back in. Half the necessary info results in a half answer.  We've already made the mistakes, take advantage of them.
If You Can't Be Good, At Least Be Colorful
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Pull the oil pan and take a look, replace as needed if needed 
