308 GT4 Throttle Body Injection | FerrariChat

308 GT4 Throttle Body Injection

Discussion in '308/328' started by No Doubt, Nov 12, 2007.

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  1. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
    Full Name:
    Mr. Sideways
    #1 No Doubt, Nov 12, 2007
    Last edited by a moderator: Sep 7, 2017
    I'm considering the purchase of a few 308 GT4's for a small business that I'm running. These would be track cars.

    But are the carbs up to the task?

    I've considered the effort involved in converting GT4's over to a Motronic 2.7 fuel injection, and some years ago I converted a carbed KR2 into a throttle body fuel-injected KR2 aircraft, with great success (no more carb starvation during radical manuevers).

    The Motronic conversion would be the most costly (time, labor, money). In contrast, a conversion to 4 (or 8) Ellison throttle body injectors might be as simple as my KR2 conversion some years ago (unbolt the carb, bolt on the Ellison, installed a Van's solenoid primer kit for cold starts and then I was done!).

    Opinions? Thoughts?
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  2. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    tell us more. i'm intrigued. i know you can buy throttle bodies that bolt exactly in place of the carbies, but they're expensive. i've wondered what sort of computer can do just the fuelling, as i already have prog elec ignit.

    i reckon it's a great idea, and with multiple throttle bodies, should sound pretty much exactly like it does now.
     
  3. Sempre_gilles

    Sempre_gilles Formula 3

    Jul 11, 2003
    1,831
    Full Name:
    AdK
    The Dino 308 GT4 is wet sump - that might be more of a problem for track use.
     
  4. marankie

    marankie Formula Junior

    Aug 30, 2004
    252
    Agoura Hills, Calif
    Full Name:
    Martin
    You would have to add the special aftermarket sump baffel
     
  5. mk e

    mk e F1 World Champ

    Oct 31, 2003
    13,633
    The twilight zone
    Full Name:
    The Butcher
    The carbs will be fine on the track, but to maintain peak performance you need to change jets with the weather.

    A motronic EFI conversion would be the most difficult possible way to add EFI. A simple Haltech e6x will plug into your laptop and give complete and instant control of both fuel and ignition for $1400 including a wire harness. There are TBs that will replace the carbs as a direct bolt-on, you can use motorcycle TBs, you can replace the carb manifolds with a CIS intake to converted to EFI injectors.
     

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