Autocross Tire Pressures (basic Q's)

[67rally]

Start them out on 32-29 psi and watch the triangles. all tires have 3 triangles on them. use a pice of chalk, sharpie, paint, anything that you can see. mark the triangle. the road will wipe away the chalk and show you where the tire is contacting the road. you want the road to touch the very tip of the triangle, if that happens you have the correct air pressure. if the road has wiped the chalk off the triangle you have too little air- add more. If the road hasn't touched the triangle then you have too much air- take some out.



At first it will be hard to tell how much to add or subtract, but after a while you'll get a feel for your car.

hope this helps

That's cool, I never knew those were there. Thanks.