Quote:
Originally Posted by jdean
J Persons, the loss from the drivetrain is not speculation, but has been proven with countless comparisons of FWHP compared to RWHP on the same engine. The ZF transaxle is not a fair comparison since it is both the transmission and differential in the same unit, so it is intrinsically more efficient vs a transmission, driveshaft, differential.
The chassis dyno vs engine dyno sometimes introduces sources for addition losses like exhaust systems or other accessories driven by the engine.
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True, but I was using the referenced ZF as an example only. If the 20% is correct, that would put my 331 at around 420 FWHP, and I just don't think it develops that much power. If someone on the board is a Ford power train engineer, they could answer and put this debate to rest.