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Great post above...
So when one mentions 300PSI at cold start, and you look at the size of that turbo scavenge pump, it really makes you wonder how much oil actually goes through the oil coolers, and how much just gets diverted right away back to the engine...
I gotta tell you, I have had my oil tank open while my cold motor was idling, and it didn't look like oil was coming out of the filter at 100PSI or greater...
Many oil filters have a bypass feature, in case the filter gets clogged. I would think that opens well below 100 PSI. If we were running pressures that high on the scavenge side, especially once warmed up, I would be surprised...
But, I am learning more every day...
I wonder what the pressures are on the scavenge side warm?
If my car, on the track, can muster 4 bar (60psi or so) warm, then it has to be much less on the scavenge side. On the pressure side, you have, by design, no outflow. The oil HAS to squeak by bearings/bushings/piston squirters, etc...
On the scavenge side, it goes through a big brass 3/4 circuit, and 1-2 oil coolers...
Fascinating discussion.
Kevin, sounds like your oil pump looked great...
Bo
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