Turbo working properly?
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This is a discussion on Turbo working properly? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; So, I have had two 02 wagons and the current one I have feels like it has less power than ...

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    Turbo working properly?

    So, I have had two 02 wagons and the current one I have feels like it has less power than the other. I don't hear the turbo whine as much as the other and it doesn't 'take off' at 3000-3500 rpm like the other did. Is this a turbo issue or perhaps the other car had some tuning? I just wonder what I should expect for stock. I took it to the dealer and they indicated that the turbo was working fine.

    I do need to replace the clutch as it is slipping. I assume that could eat into the power delivery.

    -mx

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    Subaru Newb MainFrame's Avatar
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    Do you have any way to tell how much boost it's making or if the ECU is pulling timing? If the other car had an aftermarket downpipe that would explain the sound and difference in power.

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    I replaced the uppipe in the other car but, not the down. I do have the factory boost gauge in the middle console.

    -mx

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    Registered User frenziedcage's Avatar
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    Do you have a stock up pipe on this bugeye?

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    Subaru Newb MainFrame's Avatar
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    Uppipe cat on 2L WRX makes a huge difference in spool and torque.



    How much boost are you getting?

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    Everything is stock on the current car. I am about to get the clutch done. It may be a good time to get the up pipe done as well.

    As far as the amount of boost, I will have to watch more carefully tomorrow.

    -mx

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    Registered User frenziedcage's Avatar
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    Then there is what the difference is a a/m up pipe will make a huge difference in spool up. I'd recommend getting one without the egt bung in the new a/m up pipe.

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    Moderator Donkey's Avatar
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    Quote Originally Posted by motoxpress View Post
    I do have the factory boost gauge in the middle console.

    -mx
    Okay,so then what boost is it making at WOT? The more actual real data you can give us the better we can diagnose.
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    It seemed to max out at around .05 on the stock turbo boost gauge.

    -mx

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    Re: Turbo working properly?

    Quote Originally Posted by motoxpress
    It seemed to max out at around .05 on the stock turbo boost gauge.

    -mx
    What gear? WOT?
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    First several gears, WOT max out at .05

    -mx

  13. #12
    Registered User UEDan's Avatar
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    You really need to specify man.
    For me max boost in:
    1st: not full
    2nd: closer, usually let off before.
    3rd: this is when I'll get full boost.

  14. #13
    Pro Manscaper Mikie13's Avatar
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    You don't reach full engine load until you are at least 3rd gear...so when determining full boost, you should really read it at 3rd or 4th at WOT after 4k rpms or so...
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
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    Ok. I'll look again. What is 'normal' boost max?

    -mx

  16. #15
    Pro Manscaper Mikie13's Avatar
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    usually around 13.5-13.9psi on the WRX..., which would be near the 1.0 mark in Bar.

    Sounds like you're running wastegate boost pressure, meaning the stock system has an issue. It may be missing the restrictor pill or something like that.
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
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