Best F/R Pressure On The Street
12-17-2008, 12:26 AM
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Best F/R Pressure On The Street I have a 2000 SS with 275/40zr17 kumho ecsta asx tires all around on the stock 17x9 ZR1s, and after taking a wheel/tire combo to hibdon's for a flat repair, I noticed that the rears are both wearing more in the center signaling an overinflated condition. I run all four corners at 30psi as per the gm sticker. What's the best rear pressure for the street?
12-17-2008, 11:20 AM
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Pressure I think that the F/R weight balance on our cars is 57/43 or 58/42 so that would require less air pressure in the rear tires than the front. Since 30 psi has delivered even wear in the front, I expect that less pressure would deliver the best results in the rear.
12-18-2008, 10:09 AM
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I have a 2000 SS with 275/40zr17 kumho ecsta asx tires all around on the stock 17x9 ZR1s, and after taking a wheel/tire combo to hibdon's for a flat repair, I noticed that the rears are both wearing more in the center signaling an overinflated condition. I run all four corners at 30psi as per the gm sticker. What's the best rear pressure for the street?
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12-18-2008, 11:07 AM
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I have a "quality" camel tire gauge and I have tried a snap on gauge at my dads shop which corresponded with my dial gauge. With almost 60% of the 3500 lbs over the front axle, the rear tires will definately need a few psi less to wear evenly. I'm just going to mark tht top of the tread with chalk and alter pressure until the wear is even across the tread surface.
