Originally Posted by whitefrs (Post 1037293)

So having a filter is ok?

Originally Posted by King Tut (Post 1037498)

Because you have the vacuum line connected off the back of the manifold a filter is NOT ok. You either run it as a closed system or you run it as a vented system. The best solution to run the can as intended is to T off the vacuum line on the back of the intake manifold and run it to both of the ports on the can. Just remember that once you accelerate and hit boost there is no longer any vaccum being created to pull out the oily gasses so essentially the can becomes pressureized at that point. With a vented can it never sees vacuum or boost so it performs the same all the time.

Originally Posted by whitefrs (Post 1037379)

4 engines??? Holy shit

Originally Posted by mad_sb (Post 1037545)

I know you and I are on opposite side of the fence about open vs closed systems.. but I think we both agree that the way he currently has this plumbed is creating both a vacum leak and a boost leak since he has the port on the intake manifold connected right?

Originally Posted by mad_sb (Post 1037151)

They don't have any diagrams of the inside of the can so it's difficult to tell for sure how you need to connect it with a boosted application.. but i am guessing, since any oil caught is supposed to drain out the bottom port, the can has no internal separation and as a result it's not doing anything good in the current configuration.

Fairly sure the way that is plumbed right now you are sucking unmetered air into the intake manifold when off boost and blowing metered air our the when under boost. That may be part of the reason your fuel trims are all over the place.

For the time being, you should take the can out of the equation and put the system back like it was before you installed the can.

For that can to work properly it needs to be a closed system. You will need a bung pre turbo (as others have said) to connect to the port that is open. you also want a good check valve between the can and the intake manifold port so it will not pressurize the can under boost pressure. The stock pcv valve is on the block side so as soon as you go in boost the charge is filling the can and running out the open port and back into the block on the connected intake side port.

I honestly think you would be better off with 2 separate 2 port cans and a couple of crankvents (http://www.et-performance.com/automotive.html)... the idea draining the caught nasty back into the oil system is.. well... nasty.

Originally Posted by jdzumwalt (Post 1044580)

This is wrong I tested mine by pressuring it. the top and bottom are separate.

Gregg

Originally Posted by mad_sb (Post 1044947)

Top and bottom what? Ports on the can?


EDIT: Maybe the can is actually completely divided inside making 2 independent paths with no cross over (I think that is what your saying right?), in which case oil would drain back via the pcv valve and the port under the AC compressor.

Personally, i would rather pay more for 2 independent cans that do not put the captured oil back into the system, but that topic has been beat to death already.

Originally Posted by King Tut (Post 1037263)

Until someone shows me gains when pulling vacuum on the crankcase, then I will stick with vented. I don't want that oily air going through my engine.

Originally Posted by IBill4You (Post 2329002)

Hey King Tut, did you ever see those gains or still running V2A?