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Old 05-22-2015, 04:18 PM   #255
JDKane527
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Quote:
Originally Posted by Jaden View Post
When talking about crank pulley affecting hp, you have to understand you're talking about two different things.

a lighter pulley won't have as much of an effect as an underdrive pulley.

An underdrive pulley will often be lighter as well, but it is reducing engine load from accessories by changing the rpm's of the accessories for a given engine rpm which reduces the engine load for accessories at any given rpm.
Anyone who tries to argue that under drive pulleys don't increase hp is smoking crack.

That would be like saying that super chargers don't increase load and take hp from the engine to operate.

Jaden
This could be another discussion on the benefits of reducing mechanical drag and load, such as deleting the engine driven water pump and the effects of changing the final drive.
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