Originally Posted by dparker
My wife gets mad but I do little burnouts in my shop(facing out the door just in case) but it lets me see my contact patch on the cement. If its real dark on the edges of the black marks I know I don't have enough air and so on. It just helps me get close before I go to the track. When we go to Ennis we usually have to ad 1/2 to 1 psi to eliminate the tire squaring up. Each track may take a little different psi also.
ditto on that last statement, that way you have the most contact or tire on the track which is a very good starting point.
I also agree with Bj, play with the pressure going higher and higher in small increments till its loses traction and then back off to where it got the most bite, personally my 14x32's likes anywhere between 7 to 8.5, only time I run more than that I'm trailoring the car.
Goodluck, Cp