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How to make the so called owl sound

Discussion in 'A4/S4 forum(B5 Chassis)' started by Gunny110, Jan 12, 2014.

  1. Gunny110
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    Gunny110 Member

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    Hi all I have a question regarding this so called owl sound. Derv is a 1.9 AHU 90 and has had a full muflerectomy, decat, egr blank and aftermarket mushroom filter. I have been on YouTube and seen the videos of people getting the owl (woosh) sound and I like it. My question is what do I need to do to get it? Thank you
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  2. wungun
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    wungun New Member

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    I'm thinking probably an aftermarket BOV...?
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  3. Gazwould
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    Gazwould Member

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    My owl disappeared on my AVF after putting a full 2.5" decat system on.
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  4. Gunny110
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    Gunny110 Member

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    That is what I was thinking , but what sort of bov would I need? I didn't realise you could fit one to a diesel? I never had the owl before I did the muflerectomy, and is one of the reasons I did it.
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  5. Gunny110
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    Gunny110 Member

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    Anyone know?
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  6. desertstorm
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    desertstorm Member

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    The AHU doesn't have a VNT turbo it has a normal wastegate. The varying of the VNT is what makes the owl sound.
    Don't put a dump valve on a diesel complete waste of time. Will slow you down and you need all the help you can get with 90bhp.

    Karl.
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  7. Gunny110
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    Gunny110 Member

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    Ah I see, lol so true. Huff it's a lot of work to get a vnt to go on mine :(
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  8. jbh
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    jbh TDi lover

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    Or you could buy my silver avant with a vnt already fitted
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  9. Gunny110
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    Gunny110 Member

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    Haha, not got pennies for that, and would have to be black for me bud, nice try tho :p
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  10. jbh
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    jbh TDi lover

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    im sure I could get some rattle cans mate even plastidip it if you want.. it wont be a dear car mate
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  11. Gunny110
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    Gunny110 Member

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    Lol, or you could break it and il have your turbo ect :p
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  12. jbh
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    jbh TDi lover

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    you never know mate it might happen....
    ive been looking at the prices of bits and pieces and have been tempted.. if I was to get enough genuine interest in the bits I would start stripping..
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  13. Gunny110
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    Gunny110 Member

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    I just got a price from Adams for 500 quid to do a complete vnt conversion. But from my scrappy if pay about 50 quid the lot
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  14. Gunny110
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    Gunny110 Member

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    So not sure what to do tbh
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  15. adamss24
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    adamss24 Active Member

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    You sure that £50 will buy you ECU, inlet manifold, exhaust manifold, CAT, injectors, PD130 turbo, all boost pipes, N75 + wiring and all the necessary bits you require ? I agree that buying James a4 might work cheaper as you can keep all the bits you want and scrap/sell the rest...Still a long way off buying the whole conversion, i need to move in your neck of woods as them prices seem unreal ! Bad turbo cores sell for 50 quid where i live...
    #15
  16. Gunny110
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    Gunny110 Member

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    You wouldn't believe adam, for a full leather interior door cards the lot, any thing with leather on it they wanted 45 quid, not a tear in sight. Facelift air vents, 2 quid!! Not the 20-30 I have seen them for on eBay
    #16
  17. Bradderz_1988
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    Bradderz_1988 Dont replace it, Upgrade it !!

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    If there cheap and are willing to post tell them to get on here, sign up and post some of there stock on the ebay thread !!

    You might get stuff even cheaper and help us lot out, everyones a winner lol
    #17
  18. Gunny110
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    Gunny110 Member

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    I would bud, but they don't do that sort of thing. It's not a breakers as such, it's a proper old school scrap yard. And went down today and there isn't much down there vag wise
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  19. JonnyDerv
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    JonnyDerv New Member

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    It's the vanes closing on the vnt turbo, as stated yours is a wastegate.
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