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      09-27-2014, 05:55 AM   #2
Beedub
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Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

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are you seeing lots of belt dust?

swapping to the smaller pull on the s/c and not changing out some of the others i think i giving you lots of belt slip, best way is to get a dyno surely???

are you carless too? you'd expect some decent HP but clearly something is a miss.
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