Oil Filters Are Unobtanium

[mshac]

Thanks LearJetter, the documents are helpful. They mention having data available for the part you wish to substitute.

Society of Automotive Engineering Aerospace Recommend Practice (ARP) 1400B is considered the “gold standard” for piston aircraft oil filtration.

I've attached the data for the K&N HP-2004 filter. FYI the "Burst Pressure" is listed at 550psi, which exceeds the 500psi required by ARP. Interestingly, the Tempest filter became deformed at 496 psi (according to Champion's testing).

Here is a link to Champion's testing: https://www.championaerospace.com/wp...e-Analysis.pdf

Champion and Tempest filter to 25 micron, the K&N filters to 10 micron. You would think this would effect flow rate, but I'm not seeing specific flow rates for any of these filters. K&N claims their filters are "High Flow Rate" but don't back that claim up with any data that I can find.

YMMV.