Modified C4 chassis hints,tips needed
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,482
Likes: 864
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Modified C4 chassis hints,tips needed
Hi and thanks.
Im building a heavy modified '88 coupe.Not one thing is left in this car original.Right now its almost torn down to the bare butt. My question is that im not a chassis person, and id love if some of you serious fanatics out there have and hints,tips,tricks,dont-do's, you could share..The only thing ive planned on doing chassis wise, is installing the 6 point roll bar into it.Is this enough??? The motor is a s/c 383 TPI,NO2..I plan to throw 500 horse at the car all day long...
Its funny how you read how awesome the C4 is, and then the next article i read say how the C$ was flexy and unstable, and not-predictable...What gives???
The cars main use will be street ,with (im sure) the few times a year drag race, and the occasional autocross..But mainly just a seriously bad-butt street car.
Thanks friends.
Im building a heavy modified '88 coupe.Not one thing is left in this car original.Right now its almost torn down to the bare butt. My question is that im not a chassis person, and id love if some of you serious fanatics out there have and hints,tips,tricks,dont-do's, you could share..The only thing ive planned on doing chassis wise, is installing the 6 point roll bar into it.Is this enough??? The motor is a s/c 383 TPI,NO2..I plan to throw 500 horse at the car all day long...
Its funny how you read how awesome the C4 is, and then the next article i read say how the C$ was flexy and unstable, and not-predictable...What gives???
The cars main use will be street ,with (im sure) the few times a year drag race, and the occasional autocross..But mainly just a seriously bad-butt street car.
Thanks friends.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: Modified C4 chassis hints,tips needed (FostersPerformance)
the C4 chassis is a bit sloppy, but not THAT sloppy.
If I was doing this, I would fill the chassis rails with autobody foam. I plan on doing this soon.
The roll cage will be a big help, no question.
Consider coilovers. get rid of that transverse leaf spring thing. ick.
also, poly bushings will really help.
RD Racing makes a camber bar. does wonders to tighten up the front end!
If I was doing this, I would fill the chassis rails with autobody foam. I plan on doing this soon.
The roll cage will be a big help, no question.
Consider coilovers. get rid of that transverse leaf spring thing. ick.
also, poly bushings will really help.
RD Racing makes a camber bar. does wonders to tighten up the front end!
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,482
Likes: 864
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Re: Modified C4 chassis hints,tips needed (bogus)
Where , or who has info on making it coil over??? Never seen that before on a c4..hmm..
As far as the foam goes, what exactly does that do???
Thanks.
As far as the foam goes, what exactly does that do???
Thanks.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: Modified C4 chassis hints,tips needed (FostersPerformance)
autobody foam goes inside the frame rails. It will do a couple of things, fill the air void, with lowers noise, also, it will make the metal that much stronger.
this stuff is very dense, not unlike bumper foam. VERY rigid.
coil overs? a couple of options... do a search here... or, check with Doug Rippie and Exotic Muscle.
this stuff is very dense, not unlike bumper foam. VERY rigid.
coil overs? a couple of options... do a search here... or, check with Doug Rippie and Exotic Muscle.
Melting Slicks
Joined: Mar 2002
Posts: 3,105
Likes: 126
From: S.L.C. UT
Re: Modified C4 chassis hints,tips needed (bogus)
I have done some rear chassis mod's. I changed everything over from rubber to urethane, and used DRM's relocation brackets. It's suppose to take some of the anti-squat out of the car and help plant the rear tires. Kind of like making a 4 link adjustment. I think it helped my car.
Le Mans Master
Joined: Oct 2000
Posts: 6,197
Likes: 9
From: St. louis, MO
Re: Modified C4 chassis hints,tips needed (FostersPerformance)
Check out http://www.r-dracing.com
All his products are great!!
[Modified by Gary96LT4, 10:58 PM 11/9/2003]
