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Generation III Internal Engine 1997-2006 LS1 | LS6
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ported/polished oil pump

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Old 05-15-2005, 07:11 PM
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Default ported/polished oil pump
I have a ported oil pump and would like to know what kind of psi. should i have?

thanks
jason
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Old 05-15-2005, 07:20 PM
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I get 70psi @ cold idle, 60 @ hot idle, and 70 to 75 @ 2500rpm+.
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Old 05-15-2005, 07:32 PM
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I'm only geting about 27psi. Not that good. It could be the o-ring.
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Old 05-15-2005, 09:52 PM
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most likely and unfortunately, yes
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