can hear turbo venting?? :confused:
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This is a discussion on can hear turbo venting?? :confused: within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; Just like it says, if i'm driving and shift at like 3-3.5k (i usually shift at 2k) or let some ...

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    Unhappy can hear turbo venting?? :confused:

    Just like it says, if i'm driving and shift at like 3-3.5k (i usually shift at 2k) or let some boost build up, as soon as i go off throttle and on the clutch i hear a "PPFfffffffffwhoosshh" kinda sound, kinda sounds like a cheap BOV but it's all stock, so i thought "hmm it recirculates not vents, do i have some sort of air leak some were?" . and frankly i have no idea how to find it and, atm kinda short on money to take it to a mechanic, and tips or suggestions, is this bad or will it be fine if i leave it? its an o8 wrx sedan thanks in advance

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    Registered User GarrettKoonsman's Avatar
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    It could very well be the normal sound. Yes the stock valve recirculates back into the intake but you can still hear that. It very well could be a leak though. Check the BPV and its recirc hose to see if there are any noticeable leaks
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    all right thanks, and i've been driving it for bout a month now and it's just the first time i've heard it, so i was worried, but yeah, thanks

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    Registered User Monk_Knight's Avatar
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    Do you have the stock heatshield on still? I don't have one since I have an aftermarket downpipe and I get a similar sound when I shift at high rpms

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    thats weird, I have the same thing. I have an '02 and its all stock except for the cold air intake. I was told that it was just the BOV releasing the pressure. I assumed thats what it was because Im pretty new so I obviously dont know a whole lot about them.

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    Registered User GarrettKoonsman's Avatar
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    Quote Originally Posted by eacooperusmc View Post
    thats weird, I have the same thing. I have an '02 and its all stock except for the cold air intake. I was told that it was just the BOV releasing the pressure. I assumed thats what it was because Im pretty new so I obviously dont know a whole lot about them.
    With an intake there is a good chance it is really just you hearing the BPV releasing pressure, intake will make that sound much more pronounced
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    Quote Originally Posted by Monk_Knight View Post
    Do you have the stock heatshield on still? I don't have one since I have an aftermarket downpipe and I get a similar sound when I shift at high rpms
    yeah, everythings stock

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    Quote Originally Posted by GarrettKoonsman View Post
    With an intake there is a good chance it is really just you hearing the BPV releasing pressure, intake will make that sound much more pronounced
    Ok, thanks. Reading this had me thinking.

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    Quote Originally Posted by nitefrost View Post
    Just like it says, if i'm driving and shift at like 3-3.5k (i usually shift at 2k)
    My question is why are you shifting at 2k? I dont know about WRXs but in my STi its darn near impossible for me to shift it at that low RPM without getting some lugging. Granted I am new to manual transmissions and there may be something I'm missing at shifting that low.
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    Registered User Monk_Knight's Avatar
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    My car doesn't like it much either (03 WRX). I'll usually shift at or a bit above 3k if I'm driving chill around town.

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    Quote Originally Posted by ArkySTI88 View Post
    My question is why are you shifting at 2k? I dont know about WRXs but in my STi its darn near impossible for me to shift it at that low RPM without getting some lugging. Granted I am new to manual transmissions and there may be something I'm missing at shifting that low.
    Bahaha you think it's bad on your STi? Try driving a Bugeye... the 2.0L puts down almost zero torque until the turbo spools at ~3500 RPM (stock).
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    Quote Originally Posted by ArkySTI88 View Post
    My question is why are you shifting at 2k? I dont know about WRXs but in my STi its darn near impossible for me to shift it at that low RPM without getting some lugging. Granted I am new to manual transmissions and there may be something I'm missing at shifting that low.
    it's just the way i was taught, and it's my first stick as well, i consider it my first REAL car, but anyways i double clutch in, like i hit neutral first, rev a bit, then shift, and i do so at 2k to try and save gas

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    Quote Originally Posted by zax View Post
    Bahaha you think it's bad on your STi? Try driving a Bugeye... the 2.0L puts down almost zero torque until the turbo spools at ~3500 RPM (stock).
    Haha I can only imagine!
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    Registered User GarrettKoonsman's Avatar
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    Quote Originally Posted by nitefrost View Post
    but anyways i double clutch in, like i hit neutral first, rev a bit, then shift, and i do so at 2k to try and save gas
    Thats completely unnecessary, you have synchros for a reason.
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    The only time I rev match is when I am downshifting.

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