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| data_mine |
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Under drives are good, but be sure to upgrade the oil pump at the same time.
_________________ 1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow |
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| wild_ef |
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what exactly is the deal with the oil pump gears. and why should you upgrage the oil pump when fitting underdrives?
sorry im new to boss motors
_________________ BA Fairmont Ghia |
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| data_mine |
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Two reasons to upgrade the oil pump - extra revs, and underdrives.
The under drive balancer, is lighter than the factory one, thus can't balance the crankshaft as well - resulting in more vibrations. As the stock pump is made from sintered metal (effectively metal powder that's squashed together). The aftermarket pumps are made from milled solid billet metal.
_________________ 1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow |
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