Rear IRS Suspension options

[bow]

beacuse it doesnt seem right under extreme cornering the class i want to race in here around town doesnt allow me to change to a porsche arm but the rear seems like it still rolls too much

[wrenchnride247]

Have you replaced the spring plate bushings? Bilstein has a stiffer feel than GR-2's

[evilC]

Originally Posted by bow

beacuse it doesnt seem right under extreme cornering the class i want to race in here around town doesnt allow me to change to a porsche arm but the rear seems like it still rolls too much

Now I see where we are going -
Steve's upgrade is spot on. The easiest place to get the torsion bars is off a 944 or 924S where the 23.5mm bar is standard. The later 25.5mm 944 bar is a better option still for a competition car that is also used on the street rather than a street car used for competition , if you see what I mean. If your regs will allow it a coilover damper in the rear can be used to tune the wheel rate and ride height. Also the 16mm rear AR bar from a 944 is a useful addition but it will probably require a front upgrade to compensate.

evilC