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SVTPerformance's Chain of Restaurants
Road Side Pub
Oil Pressure Issue, Dry Sump System
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<blockquote data-quote="Coiled03" data-source="post: 16284532" data-attributes="member: 18779"><p>If it's temp related, you could definitely pick it up on the stand, as long as you run it to high enough temp and monitor oil pressure. Did you magnaflux the block? Might be worth it if you haven't.</p><p></p><p>That aside, I'd suspect oil pump internal clearances. When viscosity drops with temperature, it can cause a pressure drop with it. I know you said you swapped pumps. But if you put in another one of the same brand, and the same clearances, the problem would remain. Read through this:</p><p></p><p><a href="https://www.eng-tips.com/viewthread.cfm?qid=273219" target="_blank">Drysump pressure drop - Engine & fuel engineering - Eng-Tips</a></p><p></p><p>Lots of other things to investigate in there.</p></blockquote><p></p>
[QUOTE="Coiled03, post: 16284532, member: 18779"] If it's temp related, you could definitely pick it up on the stand, as long as you run it to high enough temp and monitor oil pressure. Did you magnaflux the block? Might be worth it if you haven't. That aside, I'd suspect oil pump internal clearances. When viscosity drops with temperature, it can cause a pressure drop with it. I know you said you swapped pumps. But if you put in another one of the same brand, and the same clearances, the problem would remain. Read through this: [URL='https://www.eng-tips.com/viewthread.cfm?qid=273219']Drysump pressure drop - Engine & fuel engineering - Eng-Tips[/URL] Lots of other things to investigate in there. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Oil Pressure Issue, Dry Sump System
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