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Maf hose to rocker breather

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  • Maf hose to rocker breather

    Anyone know if blocking the maf hose to rocker breather is a good idea on a s2? An then running a hose from the rocker cover to a catch can.....
    I know some cars dont like it when you do.

    cheers

  • #2
    I just reconnected mine on the Avant, I think it runs better, it was otherwise stock but with the carbon can and one way valve deleted.

    On my 3B I just run a catch can with the cam cover and crank case plumbed to it and vented out the bottom of the engine bay. Seems ok.

    There’s a load of threads on here about how to do it if you’re tracking the car or have loads of horsepower.

    S2 Coupe 3B Project


    Ur quattro restoration

    S2 Avant

    Boost is the new rock and roll!
    sigpic

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    • #3
      I've just put a rebuilt rs2 turbo on my aby, an i've blocked the maf breather as mentioned above. Now when i blip the throttle to roughly 2500rpm i get a puff of blue smoke. I cant see any smoke behind me when driving along. I was thinking maybe blocking of the breather could cause it.

      This is the second time of fitting the turbo within a month. The first time it was rebuilt they didnt put the oil seal in correctly an was dropping oil straight into the exhaust.
      On the stock turbo she didnt smoke at all.

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      • #4
        Sounds like the rebuilder hasn’t done his job right. Who did you use?
        sigpic
        Tom C - www.rcmr.co.uk
        Audi UR Quattro
        Audi 100 C3 2.0 5 cyl 115ps
        Audi S2 - 07k engine project aiming for 800ps
        Audi B5 RS4 645ps 911nm

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        • #5
          Midland turbo

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          • #6
            Originally posted by tango123 View Post
            Midland turbo

            Oh!
            sigpic
            Tom C - www.rcmr.co.uk
            Audi UR Quattro
            Audi 100 C3 2.0 5 cyl 115ps
            Audi S2 - 07k engine project aiming for 800ps
            Audi B5 RS4 645ps 911nm

            Comment


            • #7
              why ohh. Are they known to not be good?

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