For those of you that run a roadster I am struggling with the right amount of tire pressure in a Goodyear 16 33 15 slick. The car leaves good with a 1.29 60 ft but will start drifting left at about 200 ft out. Then you have to start to drive the car to correct. I have started out at 6.5 now almost at 7 3/4 doesnt seem to make any difference. I have a friend that runs a slower et than mine and is at 9.5 he shifts on rpm Im shifting on time. car has a 115 inch wheel base with 4 link with wishbone and antiroll. any input would be appreciated. The usual advice is to keep going up on pressure until car wont hook. I have been a door car guy for years before I bought this ride. Previous owner sold it rolling so no info as our combinations were different

I run a roadster, it's 2200 with my fat butt in it. 52% of the weight on the rear. 115 inch wheelbase with 4 link with wishbone and antiroll. I run 14.5 32-15 Hoosiers. Which is not apples to apples. I run 5.45 Psi. My target is 5.50 high and 5.40 low. I slow the car down to run a 1.19 60 foot. If I ran 7 PSI, I would be skating all the way down the track, at 5.7 it gets "interesting".

Joe