stock turbo gauge
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This is a discussion on stock turbo gauge within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; Hi all, My WRX came with the stock turbo gauge (the guy promised me the car by the end of ...

  1. #1
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    stock turbo gauge

    Hi all,

    My WRX came with the stock turbo gauge (the guy promised me the car by the end of the week, he couldnt find one with the options that I wanted so i got a better car at the same price ) . Can anyone explain to me (in English to a nimrod) what this gauge measures? I figure that as long as I have it, I may as well understand what the heck it is measuring.

    -Thanks.

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  3. #2
    Registered User refuse2growup's Avatar
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    Sacramento, CA
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    That gauge measures the amount of boost that the turbo is producing or not (vacuum).

    The turbo uses two fans, 1 in the exhaust and 1 in the intake. Exhaust spins the 1 fan which causes the intake fan to spin. The spinning intake fan pressurizes the intake system forcing more air into the cylinders. "Boost" is the amount of pressure created by that intake side fan.
    Matt (refuse2growup)
    2002 WRX Wagon, Alpine White
    - Kartboy shifter and bushings - Subaru column mounted boost guage - Turbo XS MBC - AEM Cold Air Intake - Flowmaster Axle Back - Whiteline Rear Strut Tower Brace - Whiteline Front Strut Tower Brace - Subaru Sedan Rear Sway Bar - Whiteline solid sway bar end links front & rear - Whiteline ALK - Replica WRC headlights

  4. #3
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    so in plainer english, negative = spooling up turbo, positive pushing boost fans to go faster and more furious!

    ---wooohooo!! gotta love turbo, RaCinWRX

  5. #4
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    In even more plain english, it measures whether the intake manifold has more or less pressure than the outside air pressure.

    It allows you to monitor when the turbo is working, and when it isn't.

    Positive number means more pressure than the outside air(boost)
    Negative number mean less pressure than the outside air(vacuum).

    Later on, if you add goodies like an mbc, it will help you to understand what is "normal" with your car, so you can compare the results of your mods.

    Bill

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