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01FR500 · 05-04-2008, 09:59 AM

Alot of it depends on the car and tires. I have 265/295 Sumitomo IIIs and run about 35.5 in them. Not long ago on here someone had the idea to run some chalk arcross the tires, drive about 100 feet, check the chalk, if the chalk is still on the tire in the middle and not on the outside, you need more air pressure (maybe vice-versa), repeat untill the chalk wear evenly across the tire. I need to remember to do this sometime, only have to do it once to figure out your optimal pressure.

05-04-2008, 09:59 AM	#5 (permalink)
01FR500 Cones Beware Join Date: Sep 2006 Location: Texarkana, TX/Conway, AR Posts: 630	Alot of it depends on the car and tires. I have 265/295 Sumitomo IIIs and run about 35.5 in them. Not long ago on here someone had the idea to run some chalk arcross the tires, drive about 100 feet, check the chalk, if the chalk is still on the tire in the middle and not on the outside, you need more air pressure (maybe vice-versa), repeat untill the chalk wear evenly across the tire. I need to remember to do this sometime, only have to do it once to figure out your optimal pressure. __________________ 2003 GT H&R SuperSports l Tokico Illumina dampers l Maximum Motorsports c/c plates l MM XL SFCs l JLT RAI l MGW shifter l other goodies...