I can't remember what pettit recommends but I recall it being very conservative. Lots of caster very little camber like 1 to 1.5 max.

I have a pyrometer now, thanks Keith :) and I'll try to get some #s at the next event in July. My car hasn't been aligned in 3 years though (lol) and I'll be running some 285 30 18s which are much smaller than the 275 40 17s so my camber will go up a bit which might be a good thing considering what others are running.

I love sliding the car around and from past experience if I go with lots of camber I'll cord the inside in a hurry. If I don't take it easy especially when it's hot I'll get the melted grove down the center of the tire in just a couple of days and if I recall the grove leans closer to the inside of the tire and that's with approx -2 front and -1.5 rear. When it's hot I'll also start at 22 psi on the hoosiers and try not to go above 35/36. I think me and Pete were starting at 24 to 26 at the last event when it was like 70 out. The corvette guys will sometimes start below 20 psi (heavier car with wider tire).

I don't even know what my cold pressures were probably 24 or 22. Maybe less. I kept removing it to get down to 35-36 hot— and to be truthful, I was checking hots post run, so the actuals were probably higher and they kept coming back 37-38.

Camber is tough, because I don't want to run so much that it lunches my street tires, which seems to happen particularly on the fronts.

No doubt as the day progresses and you keep removing air the next morning those babies will be down around 22 psi :nod:

If you drove on the street tires I'd worry about the camber but in the last two years you probably have more track miles than street miles :D