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SVT Shelby GT500
Mickey Thompson ET STREET R.. Wheel hop on the street?
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<blockquote data-quote="Jam421" data-source="post: 15528639" data-attributes="member: 110985"><p>I've had MT's on 2 GT500's and at least 5 pairs of MT's on other cars.</p><p>Wheel hop is caused by rear control arm angles...not the tires. Of course traction can increase wheel hop but the cause is in the rear end geometry.</p><p>The tire grabs, rear rotates, springs wind then forced unwind springing back causing the rear to bounce. Upper & Lower control arms must be slightly angled towards one another as if they'd intersect at an imaginary point towards the front of the car. This intersect is called Instant Center. When sitting ..your lower control arm should be tilted slightly upwards while the upper slightly downward. If the upper or lower are straight theoretically with a laser line they'll intersect towards the front of the car. That means the control arms cannot plant the rear or hold it once planted. I chased this issue for years with multiple 4 links until it was explained to me and fixed. With our cars we usually have this issue when the LCA is not slightly tilted upward enough requiring an adjustment. But if the UCA is straight that must first be addressed given you have all new rear control arms .</p><p>As suggest above my lowers are BMR but I did not see much traction increase from stock with my MT's. We moved the adjustment to the middle and the difference was magical.</p></blockquote><p></p>
[QUOTE="Jam421, post: 15528639, member: 110985"] I've had MT's on 2 GT500's and at least 5 pairs of MT's on other cars. Wheel hop is caused by rear control arm angles...not the tires. Of course traction can increase wheel hop but the cause is in the rear end geometry. The tire grabs, rear rotates, springs wind then forced unwind springing back causing the rear to bounce. Upper & Lower control arms must be slightly angled towards one another as if they'd intersect at an imaginary point towards the front of the car. This intersect is called Instant Center. When sitting ..your lower control arm should be tilted slightly upwards while the upper slightly downward. If the upper or lower are straight theoretically with a laser line they'll intersect towards the front of the car. That means the control arms cannot plant the rear or hold it once planted. I chased this issue for years with multiple 4 links until it was explained to me and fixed. With our cars we usually have this issue when the LCA is not slightly tilted upward enough requiring an adjustment. But if the UCA is straight that must first be addressed given you have all new rear control arms . As suggest above my lowers are BMR but I did not see much traction increase from stock with my MT's. We moved the adjustment to the middle and the difference was magical. [/QUOTE]
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SVT Shelby GT500
Mickey Thompson ET STREET R.. Wheel hop on the street?
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