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      01-24-2013, 08:11 AM   #19
rking117
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Drives: Z4 3.0i & 320i
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Quote:
Originally Posted by Tom K. View Post
Redline in first is 36 mph, not 30. So it appears that you have 20% clutch slippage.

Tom
Unfortunately you cannot factor Clutch Slippage that way in most cases. Only in extreme slippage would this really be a factor and then it WOULD be noticable in all gears. Simply quickly reving the engine without depressing the clutch would slip the clutch and cause a much higher than normal engine rev. for instance while drivng at highway speed stomp the accelerator to pass in 6th gear and you get a 2 or 3 K RPM difference in RPM. I wont go so far and say this is wrong because it could be the case in extreme conditions but not likely without it happening in all gears.
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