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F4a51 performance mods?

Posted by bbbrad, Dec 10, 2019

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  1. bbbrad

    bbbrad Probationary Member

    Joined Aug 18, 2012
    marton, New Jersey
    I want to manualise and setup a f4a for drag racing. What mods do I do to the valve body. Iknow I can get billet accumulaters, I can set the stacks up tighter , up the line pressure. I am planning on running a shiftbox of some sort. I'm curious as to what ports to drill and if it's required at all. Who has experience with these units.
  2. motomattx

    motomattx Proven Member

    Joined Dec 9, 2010
    wampum, Pennsylvania
    You can get a Translab shift kit for it that will instruct you where to drill and comes with springs, plugs, etc. I strongly recommend a bottle of this:


    Drag Race Build 3K  24

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

    Bleakley Proven Member

    Joined Jan 29, 2017
    Pittsburgh, Pennsylvania
    I back up motomatt on the trans lab shift kit.
    IPT can install it / rework the valve body for you if you wish. I had John do mine. Very nice mod.

    Forced Four for your shift box needs. Can handle all the basics, but is a fully programmable so you can set it up custom. VERY NICE product.

    Street Build 1K  1

    1995 Eagle Talon TSi
    fwd · automatic · 2G DSM

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