Plan to decrease Crankcase Pressure, Pics included Options

[erics1one]

Well I think oil is being pushed out my turbo seals due to postive crankcase pressure, and I need to find a way to decrease the pressure. Theres a few different ways to go about doing this.


PCV Valve -> Turbo Intake AND/OR
PCV Valve -> Intake Pipe (my IC)

Currenty my PCV valve has a breather:


You can see the PCV Valve -> Turbo Intake setup here, which can be found on the stock 3sgte:



Some tap their PCV to their intake. The Injen Intake kit comes with a tap already in the pipe:



So I've been trying to decide what setup would be best with the equipment I have (5SFTE). Been talking to 'Byron' from mr2oc.com, he's knows his stuff when it comes to PCV stuff. I've been leaning towards hooking both intakes up. Was told here:
http://www.mr2oc.com/showthread.php?t=71237
...that the small hose from valve to intake would decrease pressure during idle, while the larger hose from valve to turbo would decrease pressure during boost. Since I have a turbo, should I just connect the large hose to the turbo? Just connect a small hose to the intake? Split the PCV valve in two, running to both the Intake, and Turbo?



A: 5/8' hose to turbo
B: smaller hose to intake
C: one way valve

This post has been edited by erics1one: Dec 8, 2004 - 8:12 PM

[lagos]

or you can hook it right up to the intake piping, before the turbo, with no catch can. i dont have a can on mine, and my piping stays clean. the only thing that gets some oil is the turbo compressor, and i cant see that as a bad thing, since its lube.

connecting it to your IC piping would probably be a bad idea. you would have boost going into your vavle cover, that cant be good. do it the same way that an alltrac setup is done. before the turbo, into the intake, optional catch can in between.

the breather filter is not the right way to do it. i talked to people that said their car smoked a lot because of that breather on it.

basically ....A to B , but not to C on your diagram. also, make a nipple for the intake connection.

This post has been edited by lagos: Dec 3, 2004 - 1:15 PM

[erics1one]

connecting it to your IC piping would probably be a bad idea. you would have boost going into your vavle cover, that cant be good. do it the same way that an alltrac setup is done. before the turbo, into the intake, optional catch can in between.

basically ....A to B , but not to C on your diagram.  also, make a nipple for the intake connection.
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Well the 'one way valve' on the hose going to the intake should prevent boost from entering the valve, but I see what you're saying.

This weekend I should have time to run a line from the valve to the turbo intake, and I think is going to be my 'Final Answer.' If I still have problems, then I'll see if running to the intake manifold (or both) proves better.