Thread: Best Pulley
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      01-06-2013, 08:32 PM   #110
W Cole
Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

Posts: 703
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Originally Posted by swamp2 View Post

Link to edit.
The chart above is definitely incorrect in regards to the macht schnell pulleys. I just installed them this past week and the crank pulley is smaller on both the power steering and alternator sides therefore the A/C has to be underdriven. The power steering pump pulley is definitely a different size than OEM so the power steering is being underdriven by a different amount than the A/C, but none the less both are underdriven.

Unfortunately I did not have a pair of calipers large enough to fit around the pulleys. Can anyone from EAS chime in with the measurements?
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