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      10-28-2013, 11:40 AM   #37
Pete_vB
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Drives: '69 GT3, GT4, 1M, 912
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Quote:
Originally Posted by scotth944 View Post
Does this slippage only apply to when a tire is rotating while generating a horizontal force or does it also come into play with a stationary tire such as when your parked on a hill?

I ask this to understand how the slip ratio chart posted would apply to a rear tire going through a turn with no brake or power being applied and where the traction force is being applied to the tire is not in the direction of travel (low trust directional travel compared to the slip direction travel)?
Rotating only. If you think of each tread block as a little spring, once it's loaded up it will stay that way indefinitely. But every time you pick that spring up and put it down again (which is what you're doing when the tire is rotating) the spring will "walk" slightly.

If you are only cornering, not accelerating or decelerating, you'd be at 0/0 on the longetudinal slip chart, but you'd be somewhere else on the lateral slip chart, which is similar in concept but different in scale and values due to tire shape and construction.
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Last edited by Pete_vB; 10-28-2013 at 11:47 AM..
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