Let me point out the unobvious here. unlike air, liquid will cause the oil flow in a filter to re-act differently.
Try this, Take a brand new m1 filter, cut it open. take a jar wide enough for the filter media to be placed in.. pour oil into the can/jar, then with the filter, with the closed end down so no oil can pass into the middle except through the filter media, put it into the oil and watch just how long it takes for the oil to pass through the media before it levels out in the middle with the outside.
The point I have to make is, it will absorb a bunch of oil into the media before the oil will or can pass through the media and level out. The media is like a sponge, as it becomes wet, it will expand the media surface therefore making it "more effecient" if you may due to the fact the media itself is expanding as it absorbs the fluids. This in itself would negate any kind of flow data used with air since different types of media would absorb and expand in different levels creating a closer nit making it harder to pass fluid through.
This is why joee and I have been getting together to build a test jig up and we are getting closer to having all the parts together so we can follow through with actual oil flow, pressure drops and such with heated oil and such. I've been thinking also that we could after doing all the basic oil flow testing with clean oil, that we then could measure the oil filters wieght while full, and see if we could use a premeasured amount of "dirt" of some sort to inject into the system and run for a pre determined period of time and then remove and measure the wieght giving us a basic idea of filtration effectivness.
The more I see on these threads the more ideas i'm seeing to impliment. This will mean it will take some time to go through all of this but I myself am very interested in what we can show on this and the more it is coming together the more excited I'm getting.
