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As far as how often? For me, the car sees redline many, many, many times a day in normal usage, plus will see sustained 80-100% of redline for a couple of hours without a break on race days.
Naturally. I'd imagine trips to the Bonneville salt flats are routine for some. Races back and forth across Death Valley @ WOT.
That's more than a Cummins diesel and close to a Power Stroke. The Power Stroke having a 1.5" thread and 30 gpm potential on the filter.
At that flow rate through such a small filter it's one of the few times that the filter itself can present significant resistance in the circuit.
The bypass valve is slightly under rated for the OEM, iirc, which I think is 23.
No loss of oil flow will occur as long as pressures remains below the oil pump's relief limit. There will be some loss in filtration if the bypass opens. One should not assume that it will @ the 22gal flow rate ..or you may
The filter isn't going to react the same way new as it will when saturated. The newer the filter the less likely it is to occur and the PSID @ 22gpm will be lower.
There are longer 20M filters out there with slightly bigger diameters (same gasket) but unfortunately they don't x'ref to PURO nor Wix ..nor do they have bypass valves. They do have 20+ PSID tolerance, but that probably would not be wise.
http://www.filtermart.com/fpdbdb/fmclist.asp?fmartno=25-0415
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