tires
 

well as far a raceing with street tires i would say just under normal psi (thats is how they are ment to be run) and if you do burnouts to heat the tires befor you run dont over heat them alot of people do and well it pretty much just eats the tread off the tire and dosnt improve traction any i find it better to oly heat street tires a little.

alright. thanks. what exactly is normal driving psi?

psi
 

Well it will change from tire to tire sum run around 35 others 44psi. Your psi ratind is maked on the side wall. I would recommed tring to stay withing 7 or 8 pounbds of that, but try a few run at the recommended psi the try going up or down see if you can find where they run better for you. Just remeber every one drive a little different so try a few thing see what works best for you. O ya i run mind all the way to 5600 but it is an auto so it shift slow anyway.

cool. thanks

one more thing
 

o ya one more reminder if you let air out of the tires at the track you will have to put it back in befor driving on the street or you will distroy the side walls.