Quick Oil Catch-Can question

[mdost03]

Alright, I think I know the answer to this, but just want to verify. Maybe the question is more towards Scheides since I am trying to mimick his setup almost from his EVO.

I bought this catch can and received it in yesterday:
http://i33.tinypic.com/1z3cxnc.jpg

http://i34.tinypic.com/35iwzrd.jpg

Just wondering if I capped off the top filter port with a rubber vac cap if it would basically run like this one then (AKA Filterless):
http://i34.tinypic.com/2mdgyfr.jpg

The plan would be to cap off the top filter and then connect the valve cover breather and PCV lines together and route to the 1 port and then take the other one and hook it up to the vacuum line the PCV was hooked up to. Kracka vents would be put on both sides to make sure no boost enters the crankcase.

[mdost03]

Bored while iPod Touch updates so I drew up a picture of how I want to route the hoses and everything. Is this the correct way to do it?

http://i37.tinypic.com/15g802a.jpg

[FattyBoomBatty]

Why does it have two ports for hoses? If it's capped, why do you need two kracka vents?

[mdost03]

Why does it have two ports for hoses? If it's capped, why do you need two kracka vents?

I thought all catch cans had 2 ports for hoses?

I want to cap the breather filter off so I can run a vacuum through the can to make it function similar to stock for the PCV valve and breather.

[asshanson]

From the looks of the diagram, it won't work under boost. In vacuum yea it'll suck out air from the valve cover, but under boost the air will have nowhere to go. You need to route the side port to the intake pipe to suck out air under boost.

[EclipseGST]

Instead of capping off the breather, run the vacuum line from the intake manifold to that. Then run the 2 ports on the side to the valve cover.

You could always set it up like you made the diagram, but instead of capping the breather, you could put a kracka vent in so under vacuum the breather is closed, but under pressure in the catch can, it opens. Like if you are getting pressure from the valve cover.

[Halon]

From the looks of the diagram, it won't work under boost. In vacuum yea it'll suck out air from the valve cover, but under boost the air will have nowhere to go. You need to route the side port to the intake pipe to suck out air under boost.

Exactly. You are only venting the crank case when your engine is in a vacuum condition the way you have it set up. While under boost, the pressure that will build up in the crank case has no way out (Except maybe out your dipstick after it launches out.) I also don't see a need for an extra check valve both before and after the catch can. The one between the IM and Catch Can would be the only one you need.

[mdost03]

After doing a little research on DSMTuners, I found that this way is probably the best way to go and is the way I am going:

http://i34.tinypic.com/2lw809f.jpg

[Kracka]

The newest design above looks like a good setup. We could design your setup to function like Scheides' but it requires the use of 4 Kracka Vents, a two-port catch-can (which you have), and a small breather filter (which you have).

[mdost03]

Pics of the finished product:

http://i37.tinypic.com/10gchdy.jpg

http://i38.tinypic.com/ih8rp5.jpg

http://i34.tinypic.com/13zba5t.jpg

The newest design above looks like a good setup. We could design your setup to function like Scheides' but it requires the use of 4 Kracka Vents, a two-port catch-can (which you have), and a small breather filter (which you have).

I did give Scheides a PM a while back inquiring about his setup because I originally wanted to mimick it, but never got a response so I went this route instead.