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Thread: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

  1. #1
    Fustrated DYI mechanic Automotive Encyclopaedia Omegaman's Avatar
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    Default Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    Hi,guys.

    I have this Plenum which suits the 18rg Head,
    It was originally for mechanical injection setup. I'm thinking with some welding i can convert it to top feed EFI.
    Block off top holes and open lower for Injectors.

    As im running stand alone ECU sprint 500 Haltech.
    I can also add a larger throttle body, like a 70-75mm. I was hoping for a throttle body with ICAC like a Bosch included and TPS, with cable.
    Anybody know of a beast that is of the shelf? Im sure an adapter plate will be req'd.

    The items i will need, would be, fuel rail redrilled for injectors, mounting bracket, RFP regulator, which i have.

    Any ideas on where in Sydney i may get this welded up and will it be worth it.
    Any other things that can make this setup better or easier.
    Last edited by Omegaman; 08-01-2018 at 09:08 PM.

  2. #2
    RZN169R+2JZGTEVVTI+R151 Domestic Engineer madmont's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    Last edited by madmont; 05-01-2018 at 07:53 AM.
    Jealousy is a curse

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    Fustrated DYI mechanic Automotive Encyclopaedia Omegaman's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    im hoping to source a ford AU throttle body xr6 at 70mm or xr8 at 75mm.

    if i go for one of these i can get the TPS & the bosch air valve for cold starts, which can be wired to my haltech ps500..
    at $60 of ebay its cheap. As billet ones dont get any goodies, though they look nice.

    Last edited by Omegaman; 08-01-2018 at 09:12 PM.

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    RZN169R+2JZGTEVVTI+R151 Domestic Engineer madmont's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    Last edited by madmont; 09-01-2018 at 10:21 AM.
    Jealousy is a curse

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    Fustrated DYI mechanic Automotive Encyclopaedia Omegaman's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    Madmont, im curious.....is there a comment or suggestion in yr posts...lol

  6. #6
    RZN169R+2JZGTEVVTI+R151 Domestic Engineer madmont's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    I could not see his pictures . Can you?
    Jealousy is a curse

  7. #7
    Fustrated DYI mechanic Automotive Encyclopaedia Omegaman's Avatar
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    Default Re: Conversion of Mech plenum18rgeu to EFI and larger throttle body.

    i could yesterday. but not today.
    I re-posted them, changed one as photobucket is playing up.

    thanks..

    so i will look at changing my current intake & throttle body.

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