i have an 89' GXL (stock), i am going to an autocross event and was wondering if anyone could give me advise of what tire pressure works for you at autocross?



i've got 32psi all around now, but it seems not to be enough, i've got 225/50/15 Falken Ziex512 tires

 

40 in the fronts and about 36 in the rears should be about what you want.


you can play with those numbers a little to see which helps understeer/oversteer, but that is what i would set them at first.

 

I used to use 40/40, but that made the car tail-happy, so I turned it down to 40/35.

 

I usually run 40/40 but I had some success with 36/38 last weekend... but I have some crappy all seasons on the car at the moment

 

42/32 I ran it and it wasn't too bad. I like 'em to run a bit hard.

 

on saturday, i started off with 40f/37r and it felt a little squerly after a couple runs so i lowered the rear to 35 and it felt great