What Spring Rate for Road Racing

[Vegas69]

I couldn't agree with you more, and I'm not willing to compromise my road course set up for an autocross set up, but I think an easy fix/compromise would be rear adjustability with sway bar.

Without a doubt. I just put a rear bar on mine and it makes a world of difference. Mine has 3 holes for adjustment. The cloest hole is useless since it's way to much. The middle hole really makes the car super loose and the front hole is really nice on the road course. I haven't tried autocross this way yet but feel I can adjust the feel with tire pressure and shock adjustments. I'll find out tomorrow. What are you running in the back?

[Gitter Dun]

I'm running Global West springs, QA-1 shocks, and Hotchkis sway bar. I really liked it on the road course, ran 1:56 at Infineon running the Nascar chute configuration on Toyo RA-1's, 3400 lbs, 400/400 to the rear wheels. The front felt really good also, was running 650 lb springs and cut a coil off of them. Doug at Global West told me cutting a coil would add 10% to spring rate so I figure about 715 lbs. Felt a hair of a push but I just ordered 700 lb springs so hopefully that will be corrected.

Just ordered an aluminum block engine, should arrive in 3 weeks. Should take 100 lbs off front of car. With all other past weight reductions I should be at 3270 lbs with me in the car.

Cant wait for Buttonwillow on June 5th. We'll be running #13 cw configuration and I will be timing my laps.

[slow4dr]

Personally, I feel autocross is much harder to get a good working car. From brakes to feel. I really like the feel of my car on the road course. Going fast in autocross is always going to be a compromise. I really think autocross calls for a really stiff car to keep the body roll out of it. You watch that TCI camaro. That thing looks suspension less. It didn't fair so great on the big track set up that way.

I wouldn't use the TCI Camaros performance on the big track to compare autocross vs road course suspension settings. I think the powertrain played a bigger role in that variance than the suspension did. That car ran a 1:57 with a first time road course driver using an engine making a whopping 347whp through a 700R4.

[Vegas69]

I meant to put that in my post about him being down on power. It sure does look racey in autocross.