Catch cans

[Diablocoastie]

Correct me if I'm wrong.

So, PCV catch can works when not in boost. When in boost the PVC "check valve" closes but than what? When applying the boost if the PVC closes off where will the crank case pressure go? The clean "valve cover" suction side?....:shrug:

I hope it makes sense make I'm trying to say.

Thanks for the clearification.

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[Juben]

That's why UPR created the Dual Valve Catch Can (DVCC). It evacuates crankcase pressure under both vacuum and boost.

 

[Edkiefer]

Correct me if I'm wrong.

So, PCV catch can works when not in boost. When in boost the PVC "check valve" closes but than what? When applying the boost if the PVC closes off where will the crank case pressure go? The clean "valve cover" suction side?....:shrug:

I hope it makes sense make I'm trying to say.

Thanks for the clearification.

Right, think about it another way, When PCV is open it is drawing crank case fumes from block to the intake through PCV, but it is getting fresh air from clean side >turbo intake tube to top valve cover.

So now when boost happens and PCV is closed the crank case gets vented through the same hose (top valve cover to turbo intake).

As posted above you can filter each with CC if needed/wanted.

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