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This is a discussion on 02 stock boost? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; ^ ^ this...

  1. #16
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    ^ ^
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    Quote Originally Posted by smorris View Post
    Sure there is. A lot of us used manual boost controllers with great success.


    No Subaru came stock from the factory with a MBC.

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    It is the stock turbo does somone have a link to vacume diagram so I can figure these rotten hoses out I'm gessing its messing somthing up. There is a solinoid that isn't even hooked up cause both the lines are broke.

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    Quote Originally Posted by jordan02 View Post
    It is the stock turbo does somone have a link to vacume diagram so I can figure these rotten hoses out I'm gessing its messing somthing up. There is a solinoid that isn't even hooked up cause both the lines are broke.
    uh oh. Sounds to me like the Wastegate is not plumbed in to the high pressure system

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    Quote Originally Posted by jordan02 View Post
    It is the stock turbo does somone have a link to vacume diagram so I can figure these rotten hoses out I'm gessing its messing somthing up. There is a solinoid that isn't even hooked up cause both the lines are broke.
    Behold:

    No boost (02 WRX)
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    Moderator smorris's Avatar
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    Quote Originally Posted by wrxtreme06 View Post
    I think what he was trying to say is if your car is literally stock you cannot adjust the boost.

    A MBC is an aftermarket part, therefore your car wouldn't be considered stock. :P
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    I need the lines on the drivers side of the inlet pipe all the line in this pic are in good working order. I tried looking one up but my phone is bein stupid .

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    i still think its another issue beyond your missing/damaged hoses. your car would not be running properly at a true(assuming your gauge is working correctly) 19psi

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    Where do you hook your gauge up?

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    Quote Originally Posted by jordan02
    Where do you hook your gauge up?
    Vacuum line off the bypass valve
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  12. #26
    Registered User EndlessSea's Avatar
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    top two places ive seen them hooked into.
    1. the BPV line(my preference)
    2. the line between the turbo and the wastegate.
    Last edited by EndlessSea; 01-16-2013 at 11:58 AM.

  13. #27
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    Re: 02 stock boost?

    Quote Originally Posted by EndlessSea View Post
    top two places ive seen them hooked into.
    1. the BPV line(my preference)
    2. the line between the turbo and the wastegate.
    If you go with option #2, the boost reading will be at the compressor and not the cylinder i.e. incorrect.

    Remember, the pressure drop across the core of the stock wrx/STi intercooler is approx. 2.0PSI. Therefore, if your target boost is 17 PSI, the gauge will read 19 PSI.

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