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04-25-2003, 02:14 AM
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#3 |
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Registered Member
Join Date: Mar 2000
Location: Springfield, Ma, usa
Posts: 706
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Underdrive pulleys are suppose to slow down the movement of all the accesories, while making the crank shaft spin at the same speed if not more. The larger water pump and alt pulleys slow down their cycle as they spin while the crank pulley is spinning much faster cause of it's smaller diameter pulley. This gives the crank shaft less resistance while the motor is running.
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NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust |
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