Just?? ...M5ROKIT said:Just had BMW Ridgefield, CT replace my clutch. It was slipping on hard acceleration at WGI. Wow! Is this how it was when new? It really engages early and I must get used to it! Anyway, should I "break it in" in any way?
A fresh clutch has substantially reduced torque capacity. In my opinion, max capacity is not realized for well over 1000 mi of break-in, unless it's all city stop and go driving. Highway cruising will never break-in a clutch...it requires clutch pedal cycling, stop and go and shifting.
Since the OEM clutch design has marginal capaity to begin with, racing at WOT with under 1000mi is very risky. Sustained slippage on a race track when still "fresh" can result in burning and glazing, so it may never recover.
I would NEVER install an OEM-quality clutch in an M5 expecting to run it on-track. You are asking a lot from a known weak clutch design that is notorious for prematurely failing under modest duty on the street....even behind a 282HP 540i motor.