Originally Posted By: A_Harman
Originally Posted By: SteveSRT8
I am sorry to say the C4's were not very impressive at a road course...
Originally Posted By: A_Harman
Back in their day, they were very good. They dominated the Escort Showroom Stock endurance series, with Morrison-Cook Motorsports winning just about everything. C4 Corvette's won multiple SS-GT national championships in SCCA competition. Mine was a sweet-handling car until I tried to make it faster, then it got nasty.
Originally Posted By: SteveSRT8
Yes. They had a nasty tendency to go off the course backwards. Not something you forget! Just a little bit too flexible, especially at the rear suspension hard points.
I didn't judge them against their competition "back in the day"...
Since I'm still running mine on-track, I get to measure it against later model cars, and it's about as fast as a base C6 or C5 Z06. Forget keeping up with C6 Z06's. I haven't encountered any C7's yet. Mine is not representative of a real C4, though. It's stripped down and not street legal, with a 6-point roll cage, and a lot of drivetrain and suspension modifications. It developed wicked oversteer when I put lower control arm relocation brackets on it and extensively lightened the rear. Then the rear end would step out when the throttle was opened mid-corner. I improved it a lot by putting on a smaller rear sway bar. The turn-in is now very slow, but I can put the power down at the apex of a turn, and the car doesn't act as if it wants to kill me.
Now my big complaint is lack of steering feel. It used to have excellent feedback through the wheel, but I think it went away when I put on a reproduction steering wheel.
Bravo, nothings more fun than kicking a newer car's butt at the track!
I wish I could remember the name of the company I bought aftermarket suspension bushings from. They had a kit that really helped the steering feel in my C5's, cheap and effective. They were real "skittery" trying to put the power down out of a corner, too, but good tires and a bit of tweaking the rear alignment helped a lot...