Quote:
Originally Posted by basjoos
The easiest way to see if 70mpg is possible at 65 mph in a Prius C is to see what the instantaneous mpg gauge shows when you are drafting someone, since that is the car's aeromodding potential. When drafting, the only thing that has changed is the aero drag (rolling resistiance, drivetrain losses, etc, are unchanged) which is what you are reducing by aeromodding.
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I do not think 70MPG is possible, but 65 should be. After observing C for a while with TorquePro I came to following conclusions:
1) C engine was optimized for higher efficiency than Gen2, and sweet spot is below 2k
2) the aerodynamics of C are worse than Toyota say. CD is definitely worse than .28
I just installed VGs to see if they show any improvement at 73mph. Grill was partly blocked, not sure what else to try. I suppose could do sides if roof shows any improvement.