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Blow off valves/Dump valves

Discussion in 'A3/S3/Sportback (8P Chassis)' started by TRANZFORMA, Nov 8, 2009.

  1. TRANZFORMA
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    TRANZFORMA New Member

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    [Nov 8, 2009]
    Hey Guys im new :thumbsup: Can anyone help me,

    I have a 2009 S-Tronic S3 2.0 TFSI and want a good Blow off valve other than Forge.

    Something with a good sound to it and a easy fit

    Thanks
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  3. dc240969
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    dc240969 Member

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    [Nov 8, 2009]
    Why? You want to lose boost?
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  4. TRANZFORMA
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    TRANZFORMA New Member

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    [Nov 8, 2009]
    No I want to keep boost,

    I have a APR remap+Carbonio and Im going for a full miltek system with Hi-flow cat,

    Next year i want to have the turbo kit

    Basically Im new to engine mods so want all the silly **** to make my car sound good and drive good,


    Please help.
    #3
  5. S3Alex
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    S3Alex Rarely neutral

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    [Nov 9, 2009]
    Hi there....I'm sure lots of us will tell you that the way the induction system on the S3 works,it does not use a dump valve....it uses a diverter valve.

    The difference is that with the air mass measuring system on the engine,any air dumped from the induction system would cause fuel/air errors and thus the air( whose mass has already been measured)is diverted back into the induction system when the throttle is closed.

    This system won't produce the sort of noises that you will get from a dump valve system,working on air pressure and similar parameters.

    Forge do produce an atmospheric spacer if you really have to have the noise...
    http://www.forgemotorsport.co.uk/content.asp?inc=product&cat=010202&product=FMFSITR

    But using a decent CAI and diverter valve,the system will be quite noisy in any case.

    You really need to research it a bit before going into things like "the turbo kit".....what did you mean by that?....a big turbo kit?...if so,it's going to cost a lot of cash,and you'll need to do it properly if you don't want to hole a piston or two.

    Read a few of the turbo build threads here first.

    Just remember though....sounds good doesn't equate to goes well or fast....we've all seen plenty of cars with noisy exhausts and dump valves that can barely pull themselves along.
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  6. TRANZFORMA
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    TRANZFORMA New Member

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    [Nov 9, 2009]
    Thanks S3 ALEX
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  7. S3Alex
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    S3Alex Rarely neutral

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    [Nov 10, 2009]
    No probs....

    I've wasted a fair amount of cash over the years on bits and pieces,and going to the wrong places!

    If it helps in any way,to save someone from the same....

    Seriously though,all the guys here have been very helpful to me,and have pointed me in the right direction for a good few things.

    I'm generally happy with my car right now,although with 360bhp,it now needs the suspension tightening up a bit.
    #6

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