71 Duster Dyno

rumblefish360 said

If the manual trans (& or the whole drive train) eats 25% of the power, then you have roughly 485/490 crank HP when the wheel dyno says 364 wheel HP.

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Just wondering if you were using 25% as a hypothetical and/or ease of number calculations? I've always heard a safe bet for automatics is 15-20%.... but I'm no expert. Just wondering if the thinking on that has changed?