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RPMs with underdrive pullies

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Old 06-03-2006   #1 (permalink)
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Default RPMs with underdrive pullies
Will steeda underdrive pullies make my RPMs lower than they are now when I am cruising at a constant speed? If so, would I notice it on my tach?
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Old 06-03-2006   #2 (permalink)
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Please tell me this is a joke...

(The answer is "no".)
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Old 06-03-2006   #3 (permalink)
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No. They underdrive the accessories, not the car.
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Old 06-03-2006   #4 (permalink)
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Quote:
Originally Posted by hooligan98
Will steeda underdrive pullies make my RPMs lower than they are now when I am cruising at a constant speed? If so, would I notice it on my tach?
LOL. Thats funny. Oh well the only dumb question is one thats not asked right?
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Old 06-06-2006   #5 (permalink)
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I was just thinking that everything is running easier so I thought it made the crank more effiecent.
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Old 06-06-2006   #6 (permalink)
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It does make everything more efficient. However in a locked ratio such as in this case, the efficiency does not translate into lower engine RPMs for a given speed.
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Old 09-04-2008   #7 (permalink)
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The efficiency just translates into maybe slightly better gas mileage, and a little extra power available to the wheels.
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