Thread: Best Pulley
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      11-27-2012, 05:15 PM   #87
urBan_dK
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Drives: 2008 E90 M3
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Quote:
Originally Posted by tom @ eas View Post
MS uses two pulleys (not affecting A/C operation, which would also spin slower during everyday driving)
I see where Swamp's information on AC underdrive is coming from. How is it possible that the AC isn't underdriven since the MS crank pulley is smaller than stock and the AC pulley is not modified?