Ecore design question

[Stelth]

OK. I have searched and read posts here dating back several years having to do with the Ecore design. I have also read as much Champion literature as I could find on it. I cut one open that I had run on my '95 F-150. But I still have a question or two.

Wix lists the 51372 for a 4.6L Ford V-8 with a bypass pressure of 16 PSID. The 51365 for a Subaru 2.5L has a has an 8-11 PSID. The 51191 for a VW 1.8L Turbo has a PSID of 30.

Can Champion really calibrate their nitrile adbv/bypass to these varying PSID's? And if they can, won't it function differently when the oil is cold as opposed to when it's hot? And what about nitrile hardening as it ages?

 

[Ram01]

Just Stay away from Ecores all together

 

[Cause4Alarm]

E core is bad news

 

[bepperb]

I think on any filter the bypass is pretty inexact spec. I think it's really moot, though, and at least in my applications not terribly important.

 

[ZeeOSix]

I don't like any filter with the "rubber combo ADBV/bypass valve" setup. I like good old fashioned, spring loaded bypass valve designs.

 

[DavidZ28]

Friends don't let friends run e-cores!

 

[Sayjac]

Originally Posted By: Stelth
...Can Champion really calibrate their nitrile adbv/bypass to these varying PSID's? And if they can, won't it function differently when the oil is cold as opposed to when it's hot? And what about nitrile hardening as it ages?
I think you've pretty much hit the nail on head with your questions regarding the overall effectiveness of a nitrile combo valve design. Fairly common knowledge that nitrile adbv's don't hold up as well/as long as silicone. That being the case, could one expect a nitrile combo valve to maintain it's effectiveness as an adbv and more importantly as a bypass over the period of an oci?

At this point, I'm not convinced and that's why I prefer the standard separate adbv and bypass, even if it's a nitrile adbv, but that's just me.

Also not just Champ as Napa ProSelect and some others have gone to this design in some lower priced filters.