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      07-09-2014, 02:18 PM   #14
MKE_M3
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Drives: 2011 e90 M3
Join Date: Feb 2009
Location: Milwaukee, WI

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I'm definitely not an expert, but...

1) Assume E9X makes 414 HP at the flywheel
2) Assume proportionate drivetrain/dyno loss

Loss = 1 - (306/414) = 26%
F8X HP at the flywheel = 379/( 1 - Loss ) = 379/.74 = 513 HP

Obviously I'm making some assumptions and 513 BHP seems ludicrously high, but WOW!
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