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      10-24-2012, 04:21 PM   #40
pbonsalb
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Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

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What is rpm is the Si Trim blower spinning now at 8500 rpm? (crank pulley diameter/blower pulley diameter) x 3.6 x 8500