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Cobra Forums
2013-14 Shelby GT500
MT ET streets for track, tire pressure
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<blockquote data-quote="biminiLX" data-source="post: 16484870" data-attributes="member: 7795"><p>What size tire? Wheel? Bias ply or radial?</p><p>I’m going to assume street radials and tell you honestly not to do it.</p><p>Unless you use a bias ply or unless you are ok with serious gear whine, this car and specifically it’s 8.8 doesn’t take to drag strip launches. </p><p>That said, of course I did it too. </p><p>I ran 315/35/20 NT05R on 11” wheels and ran 15.5-16psi with low 1.7 60’ with a 2500-3000rpm clutch slip/aggressive foot swapping. Better with 16psi in 325/45/18 Hoosiers on 10.5” but serious gear whine.</p><p>Now if you go bias (the smart move), I ran 17x10.5 Darkstars with 28x11.5 ET Rs at 15psi with 1.60s on the 8.8.</p><p>Finally easy 1.5 60’ in 28x12.5x15s with the 9” and no longer gear whine.</p><p>It’s still fun, just don’t expect the stock 8.8” to make you happy.</p><p>Good luck.</p><p>-J</p></blockquote><p></p>
[QUOTE="biminiLX, post: 16484870, member: 7795"] What size tire? Wheel? Bias ply or radial? I’m going to assume street radials and tell you honestly not to do it. Unless you use a bias ply or unless you are ok with serious gear whine, this car and specifically it’s 8.8 doesn’t take to drag strip launches. That said, of course I did it too. I ran 315/35/20 NT05R on 11” wheels and ran 15.5-16psi with low 1.7 60’ with a 2500-3000rpm clutch slip/aggressive foot swapping. Better with 16psi in 325/45/18 Hoosiers on 10.5” but serious gear whine. Now if you go bias (the smart move), I ran 17x10.5 Darkstars with 28x11.5 ET Rs at 15psi with 1.60s on the 8.8. Finally easy 1.5 60’ in 28x12.5x15s with the 9” and no longer gear whine. It’s still fun, just don’t expect the stock 8.8” to make you happy. Good luck. -J [/QUOTE]
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2013-14 Shelby GT500
MT ET streets for track, tire pressure
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