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throttle vs. rpm

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Old 05-29-2009, 07:13 AM   #1
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throttle vs. rpm

my friend and i are having a debate, gas mileage related. on a non-carburated vehicle, what would yeild you better MPGs, more throttle at a lower rpm, or less throttle at a higher rpm? i guess this would only apply to manual trannies. for instance, say you're going 45 in 5th gear, so you're at a lower rpm but you may have to be heavier on the gas pedal. or would it be better to say be in third gear, and be lighter on the gas pedal?

i'm saying the lower rpm with the heavier throttle, IMO a lower gear at higher rpm is gonna burn more gas. he thinks the more throttle at a lower rpm will burn up more gas because the engine is running less effeciently.
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Old 05-29-2009, 07:15 AM   #2
With sufficient thrust, pigs fly just fine.
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More throttle at lower RPM.....less pumping losses on the engine.
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Old 05-29-2009, 07:24 AM   #4
With sufficient thrust, pigs fly just fine.
chris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shedchris4x4 is one of the sharper tools in the shed
 
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Quote:
Originally Posted by Brunes View Post
+1 cause the guy who posted this is a genius.
I dont know about "Genius".....
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Old 05-29-2009, 08:09 AM   #6
danteisme [OP] danteisme is offline
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Quote:
Originally Posted by luk8272 View Post
I'd say more throttle @ less RPM
it just makes more sense to me that way. if it were a carbed setup, i'd say that would be worse becuase you'd just be dumping fuel
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Old 05-29-2009, 08:43 AM   #7
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Quote:
Originally Posted by chris4x4 View Post
More throttle at lower RPM.....less pumping losses on the engine.
+2 and confirmed with my scanguage.
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