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Thread: People with Miltek exhaust's.....

  
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    KrisC's Avatar
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    People with Miltek exhaust's.....

    Does it sound like your exhaust is blowing when your accelerating hard?

    I have a full resonated Miltek system, turbo back.

    I thought it was my downpipe blowing from the join to the turbo but i removed and refitted it today and it's perfect and as far as i can tell the rest of the system is perfect too, yet it still sound's slightly "raspy" (i use the term "raspy" lightly here) under hard acceleration.

    Could it be because of the sports cat? or does any one have any other idea's?

    Thanks
    Astra SRi Turbo
    281|317

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    mart_gsi_turbo's Avatar
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    it may be your exhaust manifold blowing i had that problem
    Arden Blue GSI And You Know Its The Best Colour To Have

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    dannysport18's Avatar
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    on my one i did take it apart an rebuild it with Hi-Temp Silicone on all gaskets
    after TMS used paste
    it dose Blow for the first few miles till it heats up

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    Coupe John's Avatar
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    I think I know what you are saying, is it almost like a metalic echo type of sound if that make sense? Ive put it down to the wasgate when its fully open it kind of echo's through the turbo down pipe as it does not have a cat there to silence it down anymore. I know mine is not blowing because You would smell exhaust fumes and my manifold is 100% crack free aswell. This might sound like a complete load of s**t but its hard to explain.

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    KrisC's Avatar
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    Quote Originally Posted by Coupe John View Post
    I think I know what you are saying, is it almost like a metalic echo type of sound if that make sense? Ive put it down to the wasgate when its fully open it kind of echo's through the turbo down pipe as it does not have a cat there to silence it down anymore. I know mine is not blowing because You would smell exhaust fumes and my manifold is 100% crack free aswell. This might sound like a complete load of s**t but its hard to explain.
    Aye pretty much what it sounds like mate.

    All the joint's are sealed with hi-temp silicone Danny and i'm 99% sure that it ain't a cracked manifold (it's fine on top and from what i could see underneath)

    The only thing i ain't 100% about is the manifold gasket to the cylinder head, it's the only other thing i can think of, all the stud's are present and they're all tight but mabey the gasket's funked??
    Astra SRi Turbo
    281|317

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    Might have to heat wrap the down pipe to see if that silences it a bit.
    Astra SRi Turbo
    281|317

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    Quote Originally Posted by KrisC View Post
    Might have to heat wrap the down pipe to see if that silences it a bit.

    You could try that, post up the result as I'm just going to put up with mine sounding like that as i'm not 100% sure if its a wastgate noise, I know its not my manifold gasket as its brand new.

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    ronnie_dodds's Avatar
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    its cos u drive so slow
    WANTED: some mods to make my car special until i fall in love with sumthin else

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    mine sounds like its blowing but i found out last weekend that my manifold is cracked

    just as well i have a new turbo to go on
    no comment

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