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Old 06-21-2013, 06:03 PM   #6 (permalink)
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
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^^^ That's not right at all...

More power is detrimental to efficiency, generally. It's not a steadfast rule, because there are other factors, but using less pedal to get the same power means you're at a lower efficiency because you'll have higher pumping losses as the air tries to bypass the throttle plate.

The 'ideal' setup would run 80-100% at peak BSFC. This would return pretty much the absolute max fuel economy you'll get from a specific engine setup.
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

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