FI Tech converstion distributor question

Discussion in 'Injection Tech' started by JakeFromStatefarm, Dec 6, 2018.


  1. JakeFromStatefarm

    JakeFromStatefarm Farmall Cub

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    Hey guys,

    I'm back to work on the Scout after a long hiatus. The time has come to get advise from people who are smarter than me so i signed up and will post my results on this project for others. I did a lot of searching on the forums but didn't come up with these specific questions so I hope i didn't miss it somewhere. My rig is a 78 with the 345 and auto trans. I have the Prestolite distributor. I would like a recommendation on freshening up the spark on my rig. I'm currently in the middle of a Fi Tech install with Command Center. Should I install a Pertronix II or consider replacing the distributor? If installing the Pertronix II is the best route will the vacuum advance need to be hooked up and if so what is the best way to test if its working properly? If replacing the Prestolite with a new distributor is recommended what would be a good set up for the FI Tech. Its the 2 barrel Fi tech go EFI. Fi Tech states it does not control timing with this unit.
     
  2. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    Since you have the cheaper version of the FITech with no timing control, this is not really an injection question.
    But,
    If the 78 prestolite is working fine, there's no real need to change it.
    If it's bad, you can replace with the pertronics, that's about the only option with that distr. with mechanical advance.
    If you swap to a Holley distr then you can do the duraspark distr conversion for carb use, since that's essentially what you have with that system.

    The other option is to spend another $5-600 for a DUI distr.
    But if you do that, you could just sell your FITech and buy my complete injection system that has the GM HEI ignition with timing and fuel control.
     
    Mark Aycock and Jeff Bade like this.
  3. INT77345

    INT77345 Farmall Cub

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    off topic question...... where are you mounting/locating that command center ?
     
  4. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    I would do a little web search on the command center.
    There have been many that have issues with them.
    What you are doing is mounting a minature fuel tank, normally under the hood where all the heat it.
    In that small fuel tank is an electric injection pump.
    You are feeding that with the stock mechanical pump and fuel lines.
    I see no up side to this.
    You are soaking it with heat from under the hood and feeding it with a fuel system that is inadequate for injection.

    I see people everyday spend more money to try to make their cheap systems work.
     
  5. Scoutboy55

    Scoutboy55 Farmall Cub

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  6. INT77345

    INT77345 Farmall Cub

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    i have never seen on in person just wondered where folks put them... no plans on getting one.
    im still happy with my carburetor except when it is 4 degrees out side the choke re activates going down the high way
     
  7. Bill USN-1

    Bill USN-1 Moderator Staff Member Moderator

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    From the FITech manual, that's available on line.

    Fuel Delivery Requirements
    FiTech offers two different fuel delivery options. One is
    the 40003 Fuel Command Center. When using this option,
    you can configure the system to operate on a returnless
    basis. The other fuel delivery system is the 40005 Frame
    Mount Inline External Pump. Using this pump the system
    must have a return line. The Fuel Command Center uses
    your existing carbureted fuel pump and fuel lines to deliver
    the fuel to the Command Center which is mounted
    in the engine compartment.
    The only plumbing required
    is from the Center to the EFI.
    High pressure hose and fittings are supplied with this
    kit to plumb from the Command Center to the EFI throttle
    body. A 340 L/PH EFI pump is submerged in the fuel in
    the Command Center sump tank. The Center also has a
    regulator and fuel pressure gauges.
    When using the 30001/30002 Go EFI kits, the Command
    Center is suitable for engines making from 200 HP
    to 600 HP.
    Either fuel delivery system can be used with
    these EFI systems. When using the 8-injector 30012 Go
    EFI System and the Fuel Command Center, the system is
    suitable for engines making up to 800 HP. When combining
    the 30012 Go EFI System with the 40005 Inline
    Pump, it is suitable for engines up to 600 HP.
    Note: If you have elected to use the Fuel Command
    Center and your vehicle currently has a high pressure fuel
    injection pump, it must be replaced with a low pressure
    carbureted style pump. Note that vehicles equipped with
    factory high pressure EFI pumps are not compatible with
    the Fuel Command Center.
    If you choose to use some other fuel delivery system
    other than FiTech, it is important to make sure that you
    confirm its compatibility with the FiTech EFI system. Contact
    the FiTech technical staff to check compatibility. Failure
    to do so can void your warranty.
     

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