glennp_993

I’m looking for some recommendations for setting up my 993 C2 coupe for autocrossing.
I’m currently running with PSS9s set at 3 for both front and rear.
TRG front 25mm sway bar, set in the middle.
TRG rear 22mm sway bar, set in the middle.
Kumho V700 Victoracer 225/45/17 front. 35 psi hot
Kumho V700 Victoracer 275/40/17 rear. 39 psi hot
Front camber 2.0 neg, Rear camber 1.5 neg

My problem is understeer. I thought about wider front tires, soften up the front, lower front tire pressure. Where do you start?

Leeds Gulick

Back when I had my 1995 993 (1994-1997) I ran -1.4 degrees front and -1.7 degrees rear with 245s in front and 275s in the rear (BFG Comp T/A R1s). I had 8.5x17 and 10.0x17 Fikse wheels. My car was a 1995 C2 non-sunroof coupe with H&R struts (spring rates about 400 and 500 lbs/in) and adjustable sway bars (Ruf?). As I remember it I ran somewhat lower pressures in my Victoracers on my 996 back in 1998, maybe 32 psi front and 35psi rear, but it's been a long time.

The first thing I would do would be to go to wider front tires.

Leeds

Leeds Gulick

Actually the wheels may have been 16 inch Fikses.

Leeds

Joe Weinstein

yes. wider fronts, and soft rebound in the front. 2.5 deg isn't too much...