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new tires and its not the same?

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Old Jul 4, 2007 | 08:25 PM
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Default new tires and its not the same?

Yesterday I got new Nitto NT555's in front 275 45 17 and DR's in the rear 315 35 17. The fronts are at 47 psi and the rears at 46, the car feels to have alittle more roll from side to side in contrast to my old tires, as if im getting more flex from the side wall. It just doesnt feel as tight when I turn the wheel back and forth. These tires hook though! Is this a characteristic of these tires or are they are the wrong tire pressure? All the tires stayed the same size as before.
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Old Jul 4, 2007 | 08:40 PM
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dude 47 and 46 psi is way to much to run in these ties... you should run 30-33 psi on street driving... those tires are probably rated to 44 psi max on the sidewallof the tire it willl tell you... if the tires are pumped up to much youll loose traction and it wont holdthe road as well... who put that much air in there...
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Old Jul 4, 2007 | 09:07 PM
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drop the fronts to about 32 and the rears to about 25 (if they are drag radials)
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Old Jul 4, 2007 | 09:32 PM
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Yeah, geez ... and if you think the sidewall flex is bad at 46 lbs., wait till you feel it at 26 lbs ...
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Old Jul 4, 2007 | 11:13 PM
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You are at balloon city at 40+ psi. You're not experiencing sidewall roll; you're just feeling an overinflated contact patch.

I ran the 555s on front and the 315/35/17 555Rs on the back. Go with about 30 psi cold on the front and 25 psi cold on the rear for street use.
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Old Jul 4, 2007 | 11:28 PM
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Nittos are also a generally softer tire as far as sidewalls go. but you should expect much from handling capabilities from a drag radial anyway.
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Old Jul 5, 2007 | 02:44 AM
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Big Brand Tire installed em for me, and yeah transmaro93, it does say 44max on the side. wtf were these guys thinking? Ill set the tire pressure tomorrow morning and post how it goes. Thanks for the quick replys!
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Old Jul 5, 2007 | 12:04 PM
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MUCHO BETTER!!!!!!

Thanks guys!
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