Autocross and Road Racing Technique There is more to life than a straight line

Smart people wanted! need help with setup

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Old Sep 17, 2002 | 04:52 PM
  #1  
Acct 23749's Avatar
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From: Fernandina Beach FL
Smart people wanted! need help with setup

i will try to make this easy.
here is what i got:

97 lt1 camaro with about 330 rwhp and stock weight
Eibach pro kit
bilstien shocks in the rear, DeCarbons up front
BMR: SFC, LCA(with relo brackets), PHR, and sway bars 32mm front and 21mm in the rear.
315/35/17 on 11inch rims in the back and 275/40/17s up front
ful polly bushings

heres what it does:
car used to push really bad, got an alignment that helped tremendously but still have alot of push. sloppy feel

heres what i want:
very good balanced handling. i guess if there was to be an error on either side i would go for more of a oversteer setup.

What do you think would help me achive that?

here are what i am planning on doing. please feel free to coment
--bistien shocks up front....is this fine or should i really go for some revalved from strano or maybe to some more $$$ ones??
--front fully adjustable coil overs from ground control with straight rate springs.
--adjustable rear setup from ground controll with straight rate springs.
--touque arm???? now these are both $$$ and i have no idea if they help or not. i hear some ppl swear by them and others say they are crap.... thoughts???? i was thinking of one likes BMRs or global wests Traclink.


last question is with the spring rates....what should i get? i was looking at some other ppl setups such as jordanmusser. he has 600lbs in the front and 175lbs in the rear? i would love for jordan to chime in here and let me know how his handles and if he would change anything about what spring rates to choose


thank you very much
Old Sep 17, 2002 | 05:29 PM
  #2  
Skip 94 TA's Avatar
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From: Troy, NY, USA
Consider KYB AGX shocks and Struts. They have an eight way adjustment capability. You can set them so they're right for you. I have a Torque Arm and once you get the pinion angle set right for your car, it really helps the car hook up.
Old Sep 17, 2002 | 05:39 PM
  #3  
Acct 23749's Avatar
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Also if anyone knows and really good alignment specs for some oversteer that would help too
Old Sep 17, 2002 | 06:09 PM
  #4  
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Post

You _do not_ want oversteer.

It's not fast. The rear tires need reserve traction so they can accelerate off the corner. Watch any pro race. If the guy up front slides the rear, even a little, the guy behind will accelerate better and close up or pass down the next straight. That's one reason why the guy you mention (and respect) uses 600 lbs/inch front springs.

It's dangerous. If you have to swerve to avoid an accident and the rear slides you'll have to make some very precise corrections to both throttle and steering to catch the rear. Not even the pros get that one right every time. And you're in a stressful situation. If the car understeers a little it's a lot easier to keep control. Even fast cars like Ferraris and Porsches are setup to understeer.

If you make an error it should be to the understeer side. It's both faster and safer.
Old Sep 17, 2002 | 06:29 PM
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Acct 23749's Avatar
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well one reason i was saying i want some oversteer is due to the fact i have wide sticky nittos in the rear and just regular street 275 tires up front. a set up that would be nutral or even oversteer on a 275 front 275 rear car would be way to much understeer for me. but i completely understand what you are saying.
Old Sep 17, 2002 | 10:23 PM
  #6  
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From: Coppell, TX USA
you do not want oversteer, you want balanced

you are headed in the right direction.. more shock in the front for sure..

crank in some neg camber, about -1. also, the straight rate springs will work great.

I may have some custom valved bilstiens for sale.. email me.
Old Sep 18, 2002 | 05:26 AM
  #7  
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From: SW Michigan
First of all I WOULD NOT try to set up the car to work with a street tire and a drag radial.
No offense to the guy earlier to By all MEANS avoid the KYB shocks. They are not adjustable as I see. The are a single valved shocks that you can make stiffer of softer. To crank in enough rebound to get the kind of turn in and spring control you are after you have a TON of comp damping.
I think you would be happy with the revalved Bilsteins.
My experience is that 95% of understeer is induced. I have 500lb springs,35mm front bar and 125rear springs and a stock bar. 315 v700's for now. May make the switch to Hoosier next summer.
Car does not push if I dont make it push. It can even be loose in some situations. What you think pushes now wont when you have more exp. That is why Sam is using a 35mm bar in his FS and other are using 32. It controls camber better but can push more if you induce it. If not it will have a bit more grip.
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