richard m.switzer Posted May 18, 2011 Report Share Posted May 18, 2011 hello all ,I need help for a good air - PSI for my 20x9's ,,feels kinda bumpy on some roads ,what is a good PSI 30 ,32, 35 ???,,,, ,,,thanks for any replies ,,, Link to comment Share on other sites More sharing options...
jsarkis Posted May 18, 2011 Report Share Posted May 18, 2011 With my 19s and or the 18s I generally run 25-30psi on the street. The higher the psi or the less sidewall of the tire equals more of a rough ride. 20s with very little side wall are generally rougher feeling on the roads vs smaller rims with more sidewall tires. Link to comment Share on other sites More sharing options...
SteelTownStang Posted May 18, 2011 Report Share Posted May 18, 2011 This has been a widely debated issue... The manufacturer recommended tire pressure (located on the sticker inside of the driver’s side door jam) will cite 32 psi for the GT models (SGT, CS, etc.), and 35 for the GT500s... presumably more pressure based on increased weight. Some will say go with “this” regardless of the wheel size, while others will say go with a higher psi because of the lower sidewalls. Nonetheless, I'm running 38 psi on all four corners with no issues and good results. Link to comment Share on other sites More sharing options...
judgeman6970 Posted May 19, 2011 Report Share Posted May 19, 2011 personally, I run 40 psi(min) in all my 20" low-profile tires.....yes, the ride is "firm", and I like it that way....... Link to comment Share on other sites More sharing options...
08 ORANGE SS-725HP Posted May 19, 2011 Report Share Posted May 19, 2011 38psi cold front and 36 psi cold rear Link to comment Share on other sites More sharing options...
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