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      01-06-2013, 08:33 PM   #6
Major General

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

Rev limiter will not save you from a mechanical over rev such as accidentally downshifting into 3rd instead of upshifting into 5th while at 8300 rpm in 4th. But this should occur only with 6 speed manual due to the computer controlling the shifts on the 7 speed DCT. Rev limit will save you from staying in the gear past the rpm limit or from free-revving beyond the limit, but it cannot defy the laws of physics from a mis-shift. A few people have done this on E36M3s with old, tired shift linkages and worn out tranny and engine mounts -- it is called the "money shift" because it is expensive to fix. But not as expensive as on a newer M3 for which the parts are much costlier.