Quote:
Originally Posted by Diesel_Dave
It's all speed dependent. I found these graphs from a Cummins white paper. It's geared towards semi trucks, but it illustrates the principle.
This second plot (from the same white paper) shows % mpg benefit vs % aero improvement for different duty cycles:
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It looks as if a 20% decrease in drag equals just over 12 % increase in FE ?
So would a small car have more to gain, or does everything scale up or ...
