1JZ_E46, I know what you're saying. Fram engineers have their "HP" racing oil filter line.
http://www.fram.com/media/1075/fram-racing-filter-sell-sheet.pdf has the details. Up to 18 GPM oil flow allowed, and they filter pretty well at 94% 20 microns. So that's a lot of flow, and good efficiency, plenty for any street vehicle that uses it.
That said, Wix's approach to their Racing oil filter line is a little different: Wix has 2 types: An AP and an HEE, of which they give little info on efficiency, although the HEE is more efficient than AP media filters; we know that much.
One Wix clue is the comparison between a normal passenger car 57502 with a nominal micron rating of 21 and its also 95% 20 microns (beta ratio on their webpage) AND the racing HEE-media which is 61 microns nominal and unknown beta/4548-12 there. So their passenger car engine filter beats their most efficient race filter (HEE media) 51515R specifically, no big surprise. Based on that small amount of info Wix is willing to share, it looks like you could use a Wix HEE media oil filter in a street vehicle, although it's not really near as efficient as a 57502 non-racing oil filter by comparison.
Looking at a Wix high-flow AP-media oil filter (51268R), it's a big 30 GPM(!), wire-backed, synthetic media, so it actually sounds like they are using something like whats in their XP passenger car line of synthetic filters, which themselves are known for very bad efficiency (50% at 20 microns, kinda awful).
I'm a little amazed that Fram Racing Oil Filters are as efficient as they are. That is very efficient even by normal passenger car oil filter standards. If your engine flows less than about 14 GPM, like about everything on the road, the Fram Racing Oil filter is the best pick.
If your engine flows more than around 15 GPM, then the 30 GPM-rated Wix oil filters would be best choice. Those are monster engines that flow that.
http://www.fram.com/media/1075/fram-racing-filter-sell-sheet.pdf has the details. Up to 18 GPM oil flow allowed, and they filter pretty well at 94% 20 microns. So that's a lot of flow, and good efficiency, plenty for any street vehicle that uses it.
That said, Wix's approach to their Racing oil filter line is a little different: Wix has 2 types: An AP and an HEE, of which they give little info on efficiency, although the HEE is more efficient than AP media filters; we know that much.
One Wix clue is the comparison between a normal passenger car 57502 with a nominal micron rating of 21 and its also 95% 20 microns (beta ratio on their webpage) AND the racing HEE-media which is 61 microns nominal and unknown beta/4548-12 there. So their passenger car engine filter beats their most efficient race filter (HEE media) 51515R specifically, no big surprise. Based on that small amount of info Wix is willing to share, it looks like you could use a Wix HEE media oil filter in a street vehicle, although it's not really near as efficient as a 57502 non-racing oil filter by comparison.
Looking at a Wix high-flow AP-media oil filter (51268R), it's a big 30 GPM(!), wire-backed, synthetic media, so it actually sounds like they are using something like whats in their XP passenger car line of synthetic filters, which themselves are known for very bad efficiency (50% at 20 microns, kinda awful).
I'm a little amazed that Fram Racing Oil Filters are as efficient as they are. That is very efficient even by normal passenger car oil filter standards. If your engine flows less than about 14 GPM, like about everything on the road, the Fram Racing Oil filter is the best pick.
If your engine flows more than around 15 GPM, then the 30 GPM-rated Wix oil filters would be best choice. Those are monster engines that flow that.
