Amsoil EA Filters Bypass Relief Valve PSI
- Thread starter Toury
- Start date
Welcome to BITOG! 11-17 psi
Is that the filter model that Amsoil specifies for your vehicle? If so, then whatever the bypass valve setting is, they have determined it will work on you vehicle.
Thank you! So they’re the same as K&N HP filters?
yes it is, was just curious because I’m looking for the best filter for my application. My Civic is moderately tuned, so I want something that can filter good, flow good, and doesn’t bypass much. I don’t really care about longevity much because my OCI keeps changing, factory OCI is never recommended imo, even stock. I do mine every 3000k miles normally, sometimes lower.
My earlier comment about the bypass valve was that if a filter maker specifies a specific oil filter for the engine, then nobody can say one way of the other that their bypass setting is "wrong". Only some high dollar testing could prove otherwise.
If it was my car, I'd get a Fram Titanium as long as the Titanium still has the wire backed media like the old Fram Ultra had. Fram Titanium oil filters can only be bought at Advance Auto Parts stores.
I'm not sure so I won't comment. Sorry
The reason I care about the BPV spec so much is because I snapped my intake cam about 9 months ago, and upon inspection, I saw the oil passageways there were blocked. It makes sense because I used cheap oil filters for that engine, when I say cheap, I mean really cheap like no name filter. I just don’t want a filter that bypasses so much, so that only filtered oil circulates in my engine. I know Fram Racing makes them high bypass valve psi filters, but not so convinced of their blended media. So I’m not sure if those are efficient filters like Amsoil EA? Also do you know the efficiency of Fram Titanium? And BPV psi spec?
The leaf spring/bypass part likely are the same since K&N and Amsoil are both made by Champion Labs, but the media isn't, K&N filters use the cellulose blend media like the cheap Champ jobber filters (Supertech at Walmart) although some of the more expensive filters may use the better cellulose blend media used in Champ XL filters.
Blocked with what? What oil passages - drain back passages?
One key to not allowing an oil filter to bypass is keep the RPM low until the oil is fully hot.
The Fram racing filter is 94% @ 20μ ... plenty efficiency for your short oil changes. It also flows well per Fram, they wouldn't design a racing filter that didn't flow well.
https://www.framfilters.ca/products/consumer-products/oil-filters/fram-racingsup-sup/
The Titanium is 99% @ 20μ. You can look up the one for your car on Fram's website to see the bypass specs. If Fram specs it, the bypass valve is appropriate. Realize that a better flowing filter has less delta-p vs flow, so the bypass valve doesn't have to be set higher than on a more flow restrictive filter. People don't always realize that, and therefore try to 2nd guess the people who design and specify oil filters for a living.
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Inside the camshaft blocked with black stuff that look like grease, my guess is metal shavings and dirt? Thanks for the info, I will look into Fram Titanium.
