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Underdrive pulley???

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Old 01-17-2010, 05:22 PM
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Default Underdrive pulley???
so I was nosing around on moesperformance and saw something called an underdrive pulley that is supposed to give some performance gains. I don't really understand what it does. Anyone?
 
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Old 01-17-2010, 06:24 PM
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Torque reduction on the accessories, AC, water pump, power steering pump, ect... Reduces the power needed to turn them thus freeing up some ponies. Kind of like getting a 4.56 gear/gears except on the other end...
 
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Old 01-18-2010, 12:20 AM
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does it affect how the accessories perform? and is it worth the three hundy?
 
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Old 01-18-2010, 12:35 AM
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yeah it slows down all the accessories. DO you really want to spin you alternator slower have your AC less effective and your water pump pumping less for a few ponies. 3 hundy too. ***** dat.
 
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Old 01-18-2010, 12:38 AM
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kinda the feeling i was getting
 
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Old 01-18-2010, 05:08 PM
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Yep, you lose cooling, a/c and charging at low rpms just to gain a couple of hp at 5500rpm. Not a good trade-off for me.
 
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