Quote:
Originally Posted by MechEngVT
You are correct in that it appears the most efficient acceleration would be to run the engine from 2000-3000 RPM at about 80% load.
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You know I'm actually not too sure about that. The cost per unit of power is in fact lower than say at 1500 rpm, but there is some additional power lost to friction at 2000-3000 rpm range. At least that's how explain what I found with my TDI. Is there's an other reason you could think of?
I did a lot of acceleration logging with vag-com in my TDI (which pretty much have the same map as the TDI ALH engine posted in a previous post). From the bsfc map I figured out lowest consumption would come accelerating in the 1500-2000 rpm range, but it in fact it was in the 1300-1800 rpm range.