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Thread: Blow off valve/ dump valve on a diesel?

  1. #1

    Blow off valve/ dump valve on a diesel?

    Has anyone put a dump valve on a diesel before and what's it's advantages and disadvantages?


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  2. #2
    BMWHaus Guru
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    The disadvantage is definitely making your car sound like an owls mating call...

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  3. #3

    Blow off valve/ dump valve on a diesel?

    Quote Originally Posted by Paddy View Post
    The disadvantage is definitely making your car sound like an owls mating call...

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    I'm no owl scientist but I can't imagine any owls that sound like that are getting much action...


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    Last edited by FunkySeeFunkyDoo; 26-06-16 at 23:16.

  4. #4
    BMWHaus Contributor
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    Its not an owl...its a pigeon call....

  5. #5
    Isnt it the mating call of the very rare vanwanker bird?
    F31 340i M Sport Shadow Edition

  6. #6
    Blow off valves on diesels are the equivalent of putting a sock down your pants.

  7. #7
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    Quote Originally Posted by Owen View Post
    Blow off valves on diesels are the equivalent of putting a sock down your pants.
    Agreed hahahah

  8. #8
    BMWHaus Guru
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    Quote Originally Posted by Yuriy View Post
    Has anyone put a dump valve on a diesel before and what's it's advantages and disadvantages?


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    unless your running a bigger turbo and a mean huge turbo its all just noise and will actually loose power. you dont need one on a diesel the same way you do on a petrol

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