Ford Mustang Forum - View Single Post - Where do HP numbers advertised by aftermarket websties come from?
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post #12 of (permalink) Old 03-10-2016 Thread Starter
MustangLife
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Quote:
Originally Posted by JonR2006 View Post
Peak power is highest point in the curve, gain in power is the highest gain in HP anywhere in the curve when comparing pulls after mods.

Factory power, first of all, is rated at the flywheel and is PEAK power. So the Boss has 444hp PEAK at the flywheel...take out 12-15% and that is roughly the power at the wheels.

Hope this helps.

Thanks for explaining. I forgot about that. The factory 444 is crank where in the AM description they are claiming 60+ wheel HP so that makes the difference larger, but I guess since they are saying in the 60+ hp gain is across the curve and not the actual PEAK. Still a little confused, but I am starting to get it. haha

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