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The Stick
Join Date: Dec 2007
Location: Someplace Safe?
Posts: 17,328
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The fastest around a corner is in a 4 wheel drift. The angle of that drift depends on the available traction between the road surface and the tire. The less traction the higher the angle of drift. Typical racing compounds on pavement the optimum drift or slip angle is from 7 to 15 degrees.
On almost all tracks the turns are fast enough that the rotation provided during turn-in (and a little trail braking) is enough to put the rear wheels at the optimum slip angle. However in rallys there are paved turns that are tight enough that higher slip angles are faster and the rear brakes are used to help rotate the car on turn-in. The time spent in the corner is rotating the car and not traveling around the corner. I've seen World Rally Cup drivers pop the rear brake on tight paved hairpins. My best example is the single cone turns at our autocrosses.
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Richard aka "The Stick"
06 Cayenne S Titanium Edition
Last edited by RKDinOKC; 12-11-2013 at 06:50 PM..
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