Hey,

I'm driving in my first autocross this weekend and am curious about proper tire pressures. "Expert" advice on the interweb is all over the place. I understand that finding optimum pressures takes time and effort. I get that. I'm not close to that yet. Just want to know where to start. An experienced driver I know is telling me to pump them up to max sidewall pressure. That seems odd to me. I've asked for an explanation. I'm driving the '05 GT. It's got stock size 235/55-17 BFG G-Force T/A tires. Suspension is Eibach pro system plus which lowers the car about 1 1/2" all around. Since this is my first time, I have no intention of beating on the car. I just want to go out and have some fun without hurting the car. FYI, there's no air there and I'll be driving the car there on Michigan's I75 at 70 mph for about 20 minutes. Any advice you may have would be very much appreciated. Thanks in advance.