12-25-2013, 08:13 PM
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CC Member
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Join Date: Mar 2003
Location: Arkadelphia, AR,
AR
Cobra Make, Engine: Kirkham 427 brushed aluminum with Keith Craft 527C.I. all aluminum FE
Posts: 992
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If i understand you right you are losing about 5 lbs of oil pressure at 5000 rpms. Does it back up more with more rpms. what you see a lot of the time is pumping the oil pan down before the oil can return down there. Like mentioned earlier it not that uncommon to see this with a stock style oil pump with the lines, filter, oil cooler and all. we run a lot of engine with a bigger bearing at .003 clearance on the mains and it is not that big of a deal. If you are losing only 5 psi I am not sure I would worry about it very much if it does not go any lower.
Keith
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Keith C
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