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I always wondered why I only socially drank.
The price of enlightenment
The price of enlightenment
SuperBusa said:Quote:
Who's test data is that? ... certainly not WIX's. Whoever did these flow tests where they are quoting a few ounces of oil per minute at 10 psi across the filter isn't telling the whole story IMO.
You're interpreting it incorrectly. This has no bearing whatsoever on "flow potential" of the filter. It merely states what a swatch of the media produced in flow when 10 psi was applied. It's for comparative purposes only ...and..again..has little meaning in an operational engine.
If it was for "comparison purposes only" and all test filters were "normalized" then it might be somewhat useful. If the flow data was not extrapolated to determine flow over the entire element area then it's useless IMO as each filter has a somewhat different flow area.
The only right way to determine flow vs. delta P across the filter assembly is to do the test on an actual filter assembly ... not a little "swatch" of filtering media. That's Mickey mouse. There are other factors to how a filter flows as an assembly, such as the inlet/outlet holes, anti-drain valve, holes in the center core section, pleat design, etc, etc.
If I had to believe anyone’s flow vs. PSID data, it would have to be the ACDelco chart, as I believe they actually mounted a whole filter assy into a test machine to obtain that data.
And BTW ... a 10 PSI differential is a 10 PSI differential regardless of what the inlet and outlet pressures are as long as there is 10 psi difference between them. A filter should flow the same with a 10 psi inlet and 0 psi outlet, or with a 310 psi inlet and a 300 psi outlet. Both constitute a 10 psi delta, which is the driving force that caused flow through the filter.