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Drag Racing
irs with slicks??
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<blockquote data-quote="mpe331lx" data-source="post: 10895699" data-attributes="member: 36385"><p>The stock halfshafts are a lot stronger then most give them credit for. Most broken halfshafts are from wheel hop with a DR or street tire. The soft sidewall of the slick will absorb most of the shock on the launch and are very unlikely to wheel hop.</p><p></p><p>I'm not saying that they wont, or cant break on slicks.......but you will be supprised at how much abuse they can take as long as you dont hop.</p><p></p><p>Id start at a higher pressure and a 5K launch 17 and work your way down a PSI at a time until it bogs. Then either raise the launch RPM by a couple hundred or add 1/2 lb. Once you get in the ball park of the right amount of tire slip at the launch, you will have to adjust launch RPM and tire pressure accordingly to get the best 60ft. </p><p></p><p>With my 28x10.5 ET drags, Ive gotten my best 60ft (1.38) at 12.5psi. But thats with a solid axle and more tire. Different cars at different tracks will react differently to psi, so find what works for you and dont be afraid do hammer down on those tires!</p><p></p><p></p><p>You definitely have the power to run well into the 10's. Its a matter of nailing that 60ft. Your cut springs may be a hindrance and will eliminate pretty much any weight transfer. I normally suggest removing the front sway bar ( or at least unhooking the end links....you can pull it downward in the front and zip tie it to the hard line coming from the center of the steering rack). But I doubt it will help any with the cut springs.</p></blockquote><p></p>
[QUOTE="mpe331lx, post: 10895699, member: 36385"] The stock halfshafts are a lot stronger then most give them credit for. Most broken halfshafts are from wheel hop with a DR or street tire. The soft sidewall of the slick will absorb most of the shock on the launch and are very unlikely to wheel hop. I'm not saying that they wont, or cant break on slicks.......but you will be supprised at how much abuse they can take as long as you dont hop. Id start at a higher pressure and a 5K launch 17 and work your way down a PSI at a time until it bogs. Then either raise the launch RPM by a couple hundred or add 1/2 lb. Once you get in the ball park of the right amount of tire slip at the launch, you will have to adjust launch RPM and tire pressure accordingly to get the best 60ft. With my 28x10.5 ET drags, Ive gotten my best 60ft (1.38) at 12.5psi. But thats with a solid axle and more tire. Different cars at different tracks will react differently to psi, so find what works for you and dont be afraid do hammer down on those tires! You definitely have the power to run well into the 10's. Its a matter of nailing that 60ft. Your cut springs may be a hindrance and will eliminate pretty much any weight transfer. I normally suggest removing the front sway bar ( or at least unhooking the end links....you can pull it downward in the front and zip tie it to the hard line coming from the center of the steering rack). But I doubt it will help any with the cut springs. [/QUOTE]
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irs with slicks??
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