Hi volume oil pump vs standard volume pump

Mattax said

A screen's resistance to flow increases with the velocity of the flow. So it can't be judged on open area alone. At very low velocity the open area comparison is close enough. I'm not saying that particular perf has or doesn't have enough for the flow and viscosity, just saying its legit question.

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Agreed. Not sayin it's not a legitimate issue. Just sayin that Jadaharabi was trying to offer the op an improved pickup with a larger diameter for a "stock" oil pan which I believe for a stock pan is probably hard to find, and it is being written off for the wrong reasons. The main criteria to improve pump output is mainly the increased diameter of the tube. I have never heard the screen to be a significant issue. I am sure there are differences, but never heard that it matters.