Quote:
Originally Posted by euromodder
Exactly.
A small number of gears only fits a car when it has plenty of power - regardless of how well the gearing is chosen.
But having plenty of power, is generally counter-productive to being fuel efficient:
Despite the graphics saying Power to MPG, it's actually Power to Liters/100km - that is, higher value is higher fuel consumption.
Baseline numbers are HP.
Power vs. mileage - Spritmonitor.de
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I guess that's a good way to say it. And then when the engine has plenty of power, having more gears to control the rpms on the street has a big effect on efficiency since the engine is putting out so little of its power.
Thus, more gears is better in both situations!
Low powered engine, more gears = better acceleration, high powered engine, more gears = better efficiency and better acceleration.