Hi volume oil pump vs standard volume pump

66fs said

I am looking at the number and size of holes in the "screen". Milodon looks different to me. The smallest restriction is the determining factor. See post #22. You would have to calculate the open area of the "screen" and the smallest diameter of the tube for me to feel better, especially with a Chinese knockoff.

Click to expand...

That is a perforated metal type screen.
I think they are better because less likely to clog. Agreed that a screen is more open, but the area here is way bigger than the pipe diameter. Flow is not the issue on the suction side with any pump. It's ability to generate suction is the primary concern. That's why suction side is always bigger than the output side. That pickup with the exception of the threaded area is bigger than stock everywhere including the screen.
The open area on the screen, even with the perforated metal type at 50% open is like 6x bigger every than the pipe. Not understanding your concerns.