anybody modified there spindles/LCAs to correct the crappy roll center that lowering a car creates? seems to me it wouldnt be TOO tough..

 

There's nothing crappy about the front roll center. This ain't a strut suspension. You don't want a high front roll center with an SLA.

 

I thought that we did have struts up front?

 

Third gens., 82 - 92, have struts. Fourth gens., 92 - 02, have short/long A-arms. Lowering improves roll center but hurts suspension travel. The best way to lower your car is with raised spindles.

 

well, the roll center will be lowered when you lower the car, I would assume this would soften the front roll rate, ie, need stiffer springs. if you could raise the roll center back up, you could run softer springs and have more compliance? maybe i am wrong.. this is just all off the top of my head with no basis in engineering

 

on paper Jordan is correct, but unless you're one of those butchers that torches springs to make them collapse any method of lowering the front of the car is going to increase spring rate and roll stiffness. Even cutting a stock spring will increase its effective spring rate, not as much as using a properly designed spring will, but it will increase it. Progressive rate springs are actually the best compromise for a street driven car, like those made by eibach for example.
For handling purposes these cars can definitely use more roll stiffness but doing it with just springs would give your spring rates that would be unacceptable, hence many auto-x guys going to the 35mm front bars to get more roll resistance.

 

Guys, check out my post near the end of this thread that addresses the subject:

http://www.corner-carvers.com/forums...6&goto=newpost