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Cooling System Q&A, Moderated By Howard Stewart

Cruise Cooler Website > Message Board > Underdrive Pulleys
 

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Will
    07/27/08 at 01:04 PM
Reply with quote#1


There are several companies with underdrive pulleys that slow the water pump down. Is this a good idea?

Will
Howard
    07/27/08 at 05:00 PM
Reply with quote#2

Will,

Underdrive pulleys can cause your engine to oveheat at low speed and idle.

The horsepower claims made by some of the companies that sell  these pulleys are way off the mark. A cooler engine always makes more horsepower.

Howard Stewart
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