K&N says their filters flow more oil, so who are we supposed to believe?
More than every other oil filter made?
Do they show on their site, or will they provide if asked, an actual flow vs dP curve?So what’s the point of “racing” filters that are so porous they only catch rocks, birds and small children, and everything else gets through?More than every other oil filter made?
What filter manufacuerures mean when they say their filter "flows more" or "flows better" is that the filter's flow vs dP curve is lower. Most filters will only vary a few PSI of dP at high flow rates with hot oil, so it won't matter on an engine.
extremely high volume oil pumps with very thick oil. a daily driver isn’t subjected to the oil flow/pressure a race engine is.
Dry sump systems on drag racing engines
Racing filters these days (like the Fram and Ford Racing Performance filters) are both pretty efficient, and also "flow well", meaning the dP is low at high flow rates. Compared to a standard oil filter, those racing filters will only have around 2-3 PSI less dP at high flow rates. On an engine that's running near redline for a very long time on a race track, that may help a little bit, but anyone designing a race engine oiling system isn't going to design it so it fails if an oil filter with 3 PSI more dP is used on it. If you want the ultimate "racing filter", use a 35u steel wire mesh filter, which have very little dP vs flow.
Yes... BUT-old, worn/high mileage engines, with old, worn/slipping oil pumps, are a special case. Especially when the OPS is all the way at the end of the oiling circuit, top rear of the engine on LS ones. Ascent pretty much proved there is a difference in flow between different filters. Now, when I get that Melling HV pump, new pickup, & new oring on it then I can throw on anything I want!
The LS engine oil pressure sensor isn't at the end of the oiling circuit. The oil pressure sensor is located at the end of the main gallery after the oil filter - the top RH area of this figure.
Great, BEFORE the main & rod bearings! That makes me feel better! I'm just too used to the old school days when it was close to the oil filter, block bypass, etc. The weak oil pressure 6.0 is getting an AC Delco PF48 next time, if it doesn't make any difference it'll be oil pump time soon.
That looks exactly like the filter I bought at Canadian Tire today except the one I got is painted black. Motormaster OE Plus MOPH10575, made in USA. The one I bought last week, MOPH8A, made in Mexico.
It's still close enough to the filter, and there's a pretty big oil gallery between the filter and location of the oil pressure sensor. That location gives a good indication of the oil pressure at the inlet of the oiling system.
Where were you in 2010? E-core filters were complete garbage out of the gate. Media blowing through the very large openings and incomplete bonding of the "end caps". There was nowhere to go but up. That said, they do seem to have evolved into a serviceable budget filter.
Yes. Some guys on their YouTube channels opened both AC Delco and Supertech filters and they were identical. The only difference was the sticker slapped on the blue can.
