Thread: 3 vs 4 cylinder
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Old 09-13-2008, 06:39 PM   #1 (permalink)
guitarterry
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stinky - '97 geo metro lsi
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3 vs 4 cylinder

Can anybody tell me why a 3 banger would get better gas milage than a 4 banger at a lower rpm. Once you slow the 4 down where the frictional losses are the same for the motor, then the alternator, waterpump, etc would be turning slower, thus more mpg, plus the mechanical advantage- extra spark plug, more flow, etc. of course you would want to recam to better specs.

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