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      01-06-2013, 02:22 PM   #26
First Lieutenant
kennyfrc's Avatar

Drives: 2008 Z4MC
Join Date: Aug 2010
Location: ATL GA

iTrader: (1)

It's my belief that over 90% of the bearing wear occurs between 7500-8000RPM.

A tune/setup has power peaking at >7500 may be your best compromise between power/wear.

I got lucky with my setup in that the power peaks at around 7200 and when driving hard I shift as the tach just touches the yellow.

My lead never comes back over 1-2PPM on UOA and most often is 0.
Toy: 2008 Silver Z4MC 300WHP/241TQ

Mods: OEM Euro Headers, RPI Scoop

Daily: 2010 Tacoma Double Cab