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      01-17-2015, 03:31 AM   #137
driftflo
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Drives: M3T G81, M2 F87, M3 E92, 911 G
Join Date: May 2012
Location: Europe

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2025 BMW M3 G81  [9.50]
2018 BMW M2 F87  [0.00]
2012 BMW M3 E92  [0.00]
Quote:
Originally Posted by 1MOREMOD View Post
Does the partial lockup situations cause extra clutch wear since allowing clutches to slip? How frequently would a 3 clutch need to have new clutches?
there are two kinds of friction in the lsd:
static (locked) and dynamic (wheels turn with different speeds)!

wear on the clutches is caused by dynamic friction. so whenever you drive a corner or the drivewheels rotate at different speeds the clutches wear.

the wear on a 3 clutchpack lsd is bigger than on a 4 clutchpack lsd.
how long you can drive with a certain setup depends on many factors: drivingstyle, which oil is used, how often ist the oil changed, what tyres are installed, what clucthes are installed (surface used i.e. sinter/moly/plain steel..., thickness of surface, ...)
and if you want maximum performance you won't wait until it is really worn but change it each season in a serious racecar, to be sure it has no performance drop. in a street car you can use it longer and live with a little drop in lockup capability and reaction times.
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DrFerry9600.50