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  • Balast resistor

    I have converted my 304 IHC to Ford DuraSpark and have conflicting instructions on the use of a Ballast resistor. I have no resistance wire in the system so do I need one or not. I have varying opinions.

    Al

  • #2
    I'm sure Bill will come around with the official Duraspark answer but my understanding is the ballast resister is used only to prevent points from burning up quickly and is not used with electronic ignition.
    [CENTER]1994 Buick RoadMaSSter Estate Wagon LT1/4L60E. White and Woodgrain Sleeper...PCM 16188051 With SS/V4P/Custom Tune! WOT 12.9 AFR!

    1990 Chevy Suburban Silverado 5.7L 2wd ECM 1227747 HiWay Lean Cruise 18.5 MPG and 12.5 to 1 AFR at WOT!

    1972 IH 1210 Isky Cammed Balenced 345 4 speed PCM 16197427 Project!

    [SIZE=3][B][URL="http://www.gearhead-efi.com/"]GearHead-EFI.com[/URL] EFI Conversions and Chip Tuners![/B][/SIZE]
    [B]May be all you need to know about EFI![/B]

    and I still help local JustIH members (for fun) free! :cool: [/CENTER]

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    • #3
      The duraspark does not use the ballast resistor.

      The TFI coil upgrade does say to use the ballast resistor.
      I don't run a TFI coil yet so I haven't verified it.
      The ballast resistor is there to reduce the operating voltage of the coil. You still feed it 12v from the "S" or "I" term on the starter solenoid during cranking. The "I" term is preferred.
      HTH
      Bill USN-1

      COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
      HAMILTON FUEL INJECTION
      May be the answer to all your fuel injection needs!
      Learn to do it right.

      Comment


      • #4
        What is the TFI coil upgrade?
        [CENTER]1994 Buick RoadMaSSter Estate Wagon LT1/4L60E. White and Woodgrain Sleeper...PCM 16188051 With SS/V4P/Custom Tune! WOT 12.9 AFR!

        1990 Chevy Suburban Silverado 5.7L 2wd ECM 1227747 HiWay Lean Cruise 18.5 MPG and 12.5 to 1 AFR at WOT!

        1972 IH 1210 Isky Cammed Balenced 345 4 speed PCM 16197427 Project!

        [SIZE=3][B][URL="http://www.gearhead-efi.com/"]GearHead-EFI.com[/URL] EFI Conversions and Chip Tuners![/B][/SIZE]
        [B]May be all you need to know about EFI![/B]

        and I still help local JustIH members (for fun) free! :cool: [/CENTER]

        Comment


        • #5
          Mark: Do a search in Team Rush ignition conversion and it can explain it better than I.

          Al

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          • #6
            Originally posted by Eagle-Mark
            What is the TFI coil upgrade?
            http://www.justinternationals.org/Bi...ight=duraspark
            Bill USN-1

            COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
            HAMILTON FUEL INJECTION
            May be the answer to all your fuel injection needs!
            Learn to do it right.

            Comment

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