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Old 04-27-2014, 08:12 PM   #107 (permalink)
serialk11r
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spyder2 - '00 Toyota MR2 Spyder
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Quote:
Originally Posted by euromodder View Post
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
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.
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