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2G DBW Throttle Body Options

Posted by Atuca, Jan 13, 2020

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  1. Atuca

    Atuca Supporting Member

    Joined Jan 6, 2007
    Central Valley, California
    Hey guys! I need help!

    What are some high boost proven DBW throttle body options? The most popular proven TB I can find is the Bosch 82mm. Does anyone know of 90mm or larger options that work in a boosted application? Some of the LS TBs I found in the 100mm range said max 25 PSI which is concerning.

    I am just trying to do some homework instead of leaving everything up to my engine builder. Thanks.


    Bosch 2.jpg

    940  2

    1997 Mitsubishi Eclipse GST
    600 whp · 500 lb/ft · 2G DSM

    2K  0

    1999 Mitsubishi Eclipse GSX
    manual · 2G DSM
  2. motomattx

    motomattx Proven Member

    Joined Dec 9, 2010
    wampum, Pennsylvania
    Bigger throttle bodies are easier to blow open/not close properly under boost pressure, they need stronger return mechanisms which means a stronger motor/gearbox which is where aftermarket throttle bodies come in.

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
  3. InsaneGSX

    InsaneGSX Probationary Member

    Joined Feb 20, 2015
    St. Louis, Missouri
    I saw that TB on the Magnus site. Been wondering how people are wiring this up to work on a DSM. I've done some searching, but so far I've only found some generic bench applications on youtube.
    Anybody have any wiring info or a thread to point me in the right direction?

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