370z ARC Coolant & Oil Catch can installation

Jayhovah

Not exactly the configuration I was suggesting - are you sure this is correct?
If I am reading you correctly.. you are capping the fresh air inlets to the crankcase and also the PCV inlets to the intake manifold. I don't think this setup will vent the crankcase vapors because there is no vacuum source to draw the vapors out nor is there any fresh air to displace the vapors and keep the crankcase at atmospheric pressure.

I am suggesting the cans should be plumbed in series between the PCV valve outlets and the nipples on the intake manifold. When the throttle plates close and the manifold is in vacuum, the PCV valve will open and the crankcase will draw clean air from the intake and vent vapors through the catch cans (which should separate the junk out) and into the intake manifold.

That being said, I have never actually installed catch cans. This is just my understanding of the plumbing and how the system should work, so I could be wrong. I also know there are multiple ways to plumb catch cans in different configuration, the method I am suggesting here is just the one that makes the most sense to me.

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