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  1. #1
    Veteran Member Four Rings 4A Play's Avatar
    Join Date
    Jun 12 2008
    AZ Member #
    29881
    Location
    Allentown PA

    Big turbo atmospheric vented with catch can and mafless pcv help?!

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    So I'm trying to go through the previous owners cluster F of a pcv system. I have a new vaccum pump, pcv, and tubing in front of me. I thought I could easily find a schematic of how guys with big turbos, no maf, and catch cans plumb their pcv systems. Not so easy.

    Whatever the PO was running was not venting a damn thing and the pcv was broken.

    Anyone have a simple schematic of what they're running for pcv noobs?

    Thank you very much guys!

  2. #2
    Veteran Member Three Rings
    Join Date
    May 17 2014
    AZ Member #
    229072
    Location
    Raleigh, NC

    it is very easy. Delete everything but the block breather and valve cover ports.... direct them to a catch can... and put a filter on the end. DONE

    Ive driven my BT for several years set up this way no issues.

    I have a PPT vband gtx2867r running a mafless 630 tune.

  3. #3
    Veteran Member Four Rings 4A Play's Avatar
    Join Date
    Jun 12 2008
    AZ Member #
    29881
    Location
    Allentown PA

    So no need for the vaccum pump? No need for the pcv? Just cap the vaccum lines off the intake mani? What about the brake booster?

  4. #4
    Junior Member Two Rings
    Join Date
    Sep 05 2014
    AZ Member #
    280795
    Location
    Skagit WA

    X2 what Rodger said. I've got 1" I.D. Line coming from the block and -12 off the valve cover both going to a vent to atmosphere catch can. Leave your brake booster hooked up obviously. Get rid of all other pcv lines and plug the holes they used to go to. Verify there's no vacuum leaks and your good to go.

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