05-15-2013, 02:54 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by ERA Chas
Rod-he means the loss of FWHP on the engine dyno. A chassis dyno loses 15% (or more) from drivetrain friction and tire contact.
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Yes, my true, honest, no-fibbing horsepower numbers are between 450 and 475 at the flywheel. I get a little extra for the Ersons and the fact that it is nicely broken in and carefully tuned. But still, when people ask, I tell them it has 450HP because that's the truth. BTW, my valve sizes are 2.09 and 1.66. You know, if I just wanted to test out a bonus 50 to 75 horsepower I could bolt on shorty straight-outs and then put on some ear plugs.  |
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