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Thread: tech question: DIY 4age cut n shut inlet manifold?PICS

  1. #16
    Junior Member Automotive Encyclopaedia stidnam's Avatar
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    Default Re: tech question: DIY 4age cut n shut inlet manifold?PICS

    As I see so to plumb it back in before the turbo you basically you need to vent it into the exhaust manifold. Wouldn't the rubber tube melt if you hooked it up to the exhaust manifold? or is there some tricky way of doing this

    Just thought about this and I'm a dumb arse you mean plumb it back into the intake to the turbo.

  2. #17
    Junior Member Grease Monkey
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    Default Re: tech question: DIY 4age cut n shut inlet manifold?PICS

    the engine breather and the pcv ARE NOT the SAME THING. positive crankcase ventilation refers to using the engine's vacuum to remove crankcase vapours. ( blowby mainly ) the breather is there so that you don't get too much vacuum in the crankcase, or alternatively excess pressure has somewhere to go.
    so much stuff. so little time.

  3. #18
    Backyard Fabricator Automotive Encyclopaedia
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    Default Re: tech question: DIY 4age cut n shut inlet manifold?PICS

    yep, plumb it into the turbo intake pipe.

    You see quite a few RWD 4ag's with cut and shut manifolds blowing the dipstick out when the unsuspecting owner plumbs the PCV back to the original port on the intake manifold.

    Quote Originally Posted by briney
    the engine breather and the pcv ARE NOT the SAME THING. positive crankcase ventilation refers to using the engine's vacuum to remove crankcase vapours. ( blowby mainly ) the breather is there so that you don't get too much vacuum in the crankcase, or alternatively excess pressure has somewhere to go.
    We're talking about 16V 4age's here. Only one pipe on the cam covers, for the PCV.

    The 20V has the PCV and a breather

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