Quote:
Originally Posted by SlideWRX
I should also add that the most efficient range is near the torque peak. reducing engine speed too low and the efficiency will go down, even though the load goes up.
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That depends more on the engine than anything else. This 3L V6 for instance can do ~260g/kWh at ~1k rpm, but if the Ford 4.6L V8 is really crummy then it won't be able to see decent efficiency at low speeds.