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Every 2 weeks. 40psi slightly warm. I have no compressor at home so I just drive to the nearest gas station (same one each time). I do this so that I adjust right away if needed.
i was told for a staggered set-up on 20" the pressure should be 38in the front and 40 for the rear. any1 else heard this before?
It depends on your driving. On staggered wheels, the rear is wider than the front. The effect usually is increased understeer. By how much, I don't know. It depends on how you push your car and the tire limits. Anyway, increasing the tire pressure in the rear corrects that understeer. I don't think I drive the car hard enough to warrant this level of tuning.