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White smoke and mods

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  • #46
    Originally posted by ds3juice View Post
    I have an idea. What if I remove the valve from inside the valve cover? The one way pcv valve? This way I will have 2 totally free exits that I can connect to a breathing tank.
    Just for test reconnect the rear PCV. This will reduce crankcase pressure whilst not under boost.

    Scenarios we have tested
    1. Completely capped rear PCV and a catch can on the front PCV. Results was excessive smoke and oily turbo and hoses, the catch can caught just a bit a moisture at the beginning and a small amount of oil.
    2. Rear PCV vented to atmosphere via catch can, installed blanking cap on manifold and standard front PCV. Results were that rear catch can was bone dry, seems as absolutely nothing was passing through it. Front PCV heavily oiled and leaking onto cam cover. Turbo and pipes heavily oiled.
    3. Front and rear PCV pipe via catch cans. Results rear PCV catches a lot of oil, and small amount of moisture. Front PCV just a small amount of moisture. Turbo and pipe work bone dry.

    Removing internal flaps and valves is something I wanted to try but you have to destroy your cam cover to get to them.
    White on red THP
    Miltek exhaust with HKS highflow cat, Forge intercooler, hard pipe kit, induction kit, oil catch tank, , VAG BOV, Stage 3 SPT remap 217 BHP

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    • #47
      Originally posted by Jamie@SPTuning View Post
      Just for test reconnect the rear PCV. This will reduce crankcase pressure whilst not under boost.

      Scenarios we have tested
      1. Completely capped rear PCV and a catch can on the front PCV. Results was excessive smoke and oily turbo and hoses, the catch can caught just a bit a moisture at the beginning and a small amount of oil.
      2. Rear PCV vented to atmosphere via catch can, installed blanking cap on manifold and standard front PCV. Results were that rear catch can was bone dry, seems as absolutely nothing was passing through it. Front PCV heavily oiled and leaking onto cam cover. Turbo and pipes heavily oiled.
      3. Front and rear PCV pipe via catch cans. Results rear PCV catches a lot of oil, and small amount of moisture. Front PCV just a small amount of moisture. Turbo and pipe work bone dry.

      Removing internal flaps and valves is something I wanted to try but you have to destroy your cam cover to get to them.
      Ok Jamie thanks

      So first step will be to reconnect the back pcv same as stock and also the front one and see what happen at idle. If instill have all that smoke.

      Second step will be to destroy the cam cover and remove all the flaps and stuff inside and leave 2 exits and connect them to a catch can

      Will do this next week and let you know

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