No cuz the crank pulley is directly spinned off the drive train. The engine
spins the crank pulley from the center of the pulley while the accessory
pulleys are being spinned by the belts on the edge of the pulleys. Spinning
a 10lb disc from the center requires much greater force than turning it by
the edge. You would easily be able to spin that disc turning it on the edge
with your pinky but if you were to use your pinky's force to spin it by
turning a rod through the center axis, then it would be extremely heavy.
Reducing weight on the crank is much more efficient than reducing weight on
the accessory pulleys. Reducing a few ounces on the accessory pulleys
theoretically shouldn't even help with 1/10 of a horsepower given that there
is no underdriving involved. The UR Accessory pulleys are the same diameter
as the stock so it should be useless. Just my thoughts. Mike K might be able
to comment further on this.
> Wouldn't the two accessory pulleys make as much power
> as the one crank pulley? So are AEM pulleys any good?
>
>
