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Snap Oversteer
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<blockquote data-quote="ALBundy" data-source="post: 302422" data-attributes="member: 15"><p>Excessive speed will cause understeer. Try it when you enter into a corner. </p><p> </p><p>Drifting is a controlled over-steering situation. </p><p> </p><p> </p><p></p><p> </p><p>You are telling everyone what is oversteer. It is obvious the rear wheels slip angle has to be greater than the front. But what causes the rear to have greater slip angle if not for a lost of traction!!????</p><p> </p><p></p><p> </p><p>Whether the contact patch is smaller will be debatable (short of saying you are wrong <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> ), but for sure there is less contact pressure between the tire surface and the tarmac which translates into lesser grip or traction!! </p><p> </p><p>Now let me elaborate about contact patch and why you missed the mark.</p><p> </p><p>Contact patch area is not affected by the weight shift to the front but rather the centrifugal force that causes a change in the tire's camber! The tire would have maximum grip when it is perfectly perpendicular to the tarmac. In all cases, cars have negative camber because the centrifugal force will change the camber to zero (maximum grip) when cornering (depending on the speed and when that happens, you are at the limit) before you start to lose control of your car.</p><p> </p><p>That is where thicker anti roll comes into play (to resist the camber change), well that is another story.</p><p> </p><p>Cheers</p></blockquote><p></p>
[QUOTE="ALBundy, post: 302422, member: 15"] Excessive speed will cause understeer. Try it when you enter into a corner. Drifting is a controlled over-steering situation. You are telling everyone what is oversteer. It is obvious the rear wheels slip angle has to be greater than the front. But what causes the rear to have greater slip angle if not for a lost of traction!!???? Whether the contact patch is smaller will be debatable (short of saying you are wrong :) ), but for sure there is less contact pressure between the tire surface and the tarmac which translates into lesser grip or traction!! Now let me elaborate about contact patch and why you missed the mark. Contact patch area is not affected by the weight shift to the front but rather the centrifugal force that causes a change in the tire's camber! The tire would have maximum grip when it is perfectly perpendicular to the tarmac. In all cases, cars have negative camber because the centrifugal force will change the camber to zero (maximum grip) when cornering (depending on the speed and when that happens, you are at the limit) before you start to lose control of your car. That is where thicker anti roll comes into play (to resist the camber change), well that is another story. Cheers [/QUOTE]
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