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Old 11-24-2009, 05:29 PM   #17 (permalink)
some_other_dave
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Quote:
Originally Posted by mcrews View Post
Then why is everbody coasting and turning of the engine and stripping of accecories .......
Because it takes fuel to idle, and it takes power to move the accessories. Less overall power needed, less fuel burned for a given engine.

Quote:
Why is a 2.76 rear end called a highway gear
and 4.08 a race gear
Because lower RPMs and higher loads (throttle settings) are more efficient for a given engine than higher RPMs and lower loads. (Up to a point.)

Read up on BSFC (Brake Specific Fuel Consumption) as Frank suggested, and you may start to get why we would like to see smaller engines with tall gearing.

-soD
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