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Old Feb 26, 2008 | 07:41 PM
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To you guys with an underdrive pulley, has you water temp. went up much? If I install a 25% underdrive will my water pump speed be reduced by 25%?
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Old Feb 26, 2008 | 07:55 PM
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Old Feb 26, 2008 | 08:04 PM
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It will be reduced (as will the other accessories) although I haven't seen anyone mention an issue with the stock water pump. I know there have been some issues with the Evan's pump but it is a different design.
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Old Feb 26, 2008 | 08:08 PM
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Had one on my vert here in Az. for two years-no difference in temp. Had to take it off to install supercharger.
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Old Feb 26, 2008 | 09:08 PM
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My temps went up 10-15 degrees below 2000 rpms. If I get on it the temps drop to 180 (165 theromostat). No issues so far. I don't know what the summer will bring.
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Old Feb 26, 2008 | 09:16 PM
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Originally Posted by johnnied
To you guys with an underdrive pulley, has you water temp. went up much? If I install a 25% underdrive will my water pump speed be reduced by 25%?
I have seen no change in water temps with mine.
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Old Feb 26, 2008 | 09:36 PM
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Zero change here!!
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Old Feb 26, 2008 | 09:38 PM
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how much did everyone gain from theirs?
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