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Shimming the oil pump

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Old Oct 22, 2004 | 06:14 PM
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Default Shimming the oil pump

How much PSI would shimming the oil pump net you? I'm talking about normal shimming (.100-.110). Thanks for the help!
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Old Oct 22, 2004 | 06:42 PM
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10-20 psi over what you have right now.
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Old Oct 22, 2004 | 06:49 PM
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i have about 45psi cold now, so that wouldnt be too much would it?
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Old Oct 22, 2004 | 10:29 PM
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hey you mean that when you get a double roller and you used those shims on the pump you get more oil pressure?

or are you talking about something else?
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Old Oct 22, 2004 | 11:25 PM
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He's talking about shimming the spring inside the oil pump to build more pressure. Would that give more pressure at idle too, or just at higher revs?
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Old Oct 23, 2004 | 12:30 AM
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I hear it gives more pressure all around, but I'm wondering just how much? I've heard 7 (with port), 10 (w/o), 20 (w/o)... lots of inconsistency.
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