Thread: Best Pulley
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      11-22-2012, 12:23 AM   #69
Lieutenant General
swamp2's Avatar

Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

iTrader: (1)

Now we are making some progress. Thanks folks! I used the average of the two reported measurements for the OEM pulley (i.e. average = 122 mm). That can easily be changed once some one gets a caliper on it. You could also wrap it with a non stretchy piece of plastic or tape and then unwrap and use diameter = circumference/pi. That should be quite accurate.

Come on vendors, let's see some more measurements!
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