help with boosted pcv setup?

[Daguse5853Z]

whats wrong with just routing it this way?
http://60degreev6.com/forum/gallery/...php?i=728&c=49

It's for a supercharger but the theory is the same with a turbo as far as I understand it. Doesn't seem like you would have to worry about it closing during boost that way. That diagram is what I'm using as a guideline for my setup.

[Google Adsense]

[yeyo_racing]

I haven't had a problem with the 660 PCV valve closing under the correct conditions, but it's a good idea to check.

Just to confirm, what is the correct PCV part number that closes completely under boost or blowing through it while testing? I tested the stock Fiero one and it didn't close completely when I blow air through it. I could hear the air moving through the plunger. Will this one still work?

Let me know. I'm currently finishing my turbo build and would like to get this done correctly.

Thanks!

[yeyo_racing]

Nevermind, re-tested and it closes fully.

[Schmieder]

You may have to find a different PCV valve that will truely close.

Or place a check valve between the manifold and PCV. That's what I did. It is the same concept, the check valve closes completely under boost but opens under vacuum to draw the vapors from the crank case. The feed is run just behind the air filter for fresh, filtered air. While under boost there should be a small amount of vacuum in the crankcase from the line going to the air filter. When large amounts of air rush past the line it creates a draw resulting in mild vacuum in the crankcase while under heavy load/boost. That is a good thing.