RCR gt 40 track test & chassis setup (results)

[Naumoff]

Originally Posted by 496fe

Just wondering... why don't you stiffen the bar in the rear, rather than the springs. It seems that the rear end is where you have room to work with the body roll. You are right - stiffening the front bar will cause more understeer, but stiffening the rear springs will cause more oversteer. My theory has always work with the end that is NOT working (front) and leave the end alone that IS working (rear). Body roll in and of itself is not necessarily a bad thing.

BTW - the GT40 is a real race car, not a converted sports car. (Incoming flames on the horizon).
Brian

...........For what?

[496fe]

Whenever anybody suggests that Cobras weren't real race cars, the fit hits the shan.

[dlampe]

Tony, your wheel rate are set up great for the road. For the track they need to be at least 275 and a little closer to 300 is better. You will be fine. The cool thing is at least your know. I have a lot of springs. Do you know what size you are running?

496fe, To fix the body roll the correct way would be to bump up the springs but that will mess up my balance as I have it set. I can raise the swaybar rate front and rear with the most gain in the rear and get pretty close. That is what I am going to try first. The car is already very close. When I get to the track I can test my tire temps and that will tell the whole story.

Gary, I plan on running in Tulsa next year for sure.

Buzz, glad to hear things are going better.

[496fe]

Originally Posted by dlampe

496fe, To fix the body roll the correct way would be to bump up the springs but that will mess up my balance as I have it set. I can raise the swaybar rate front and rear with the most gain in the rear and get pretty close. That is what I am going to try first. The car is already very close. When I get to the track I can test my tire temps and that will tell the whole story.

Perfect . You know what you're doing. No wonder you were blowing everyone else in the weeds.

Brian

[Naumoff]

Originally Posted by dlampe

Tony, your wheel rate are set up great for the road. For the track they need to be at least 275 and a little closer to 300 is better. You will be fine. The cool thing is at least your know. I have a lot of springs. Do you know what size you are running?

496fe, To fix the body roll the correct way would be to bump up the springs but that will mess up my balance as I have it set. I can raise the swaybar rate front and rear with the most gain in the rear and get pretty close. That is what I am going to try first. The car is already very close. When I get to the track I can test my tire temps and that will tell the whole story.

Gary, I plan on running in Tulsa next year for sure.

Buzz, glad to hear things are going better.

Dean,
I am running 550# springs up front but have a set of 650# that will bring it up to 284# wheel weight.

But I don't have another set of springs for the rear. I am running a Jag rear with quad coil overs.
I assume that you add the two spring rates for each side which on the calculator it gives me 230# wheel weight.

The spring rate is 300# per spring.

It is easy to change the springs on my car. I think the R&G will help me
move in the right direction for setting up my cars suspension.