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I was wondering how much poer we lose in our drivetrain. I am trying to figure how much power I have to the flywheel. I have heard people throwing 17% around but I wasn't sure. I was also wondering how much loss is typical of the different drivetrains, ie awd, ff, fr, mr, rr.
 

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Sückn' n Blown
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I'd say between 13-15% for a stock engine. (depends if you use a 145 or a 148hp figure). Stock, they dyno around 127hp, so 127/148 = 85%, or 15% loss. However, its not constant, but more or less will be around that number.

Expect about 162 at the crank.
 
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