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  • hipower17
    Senior Member
    • Dec 2007
    • 643

    #1

    a question

    wonder why everyone quit using magnitos and switched to msd?
  • Mopar DLM
    Senior Member
    • Aug 2012
    • 216

    #2
    takes way to much power to turn the generator in a magneto. with the better and higher voltage batteries nowadays and better coils sparks are still strong at the end of a long race. that and ignorant chevrolet has a big enough problem with distributor turning in the block without trying to pull a magneto.

    Comment

    • petesbuyin
      Member
      • Jan 2015
      • 56

      #3
      Mags were not real reliable. you had to have 3 of them. 1 in the car, 1 in the trailer for spare, and 1 sent out for repair/recharge. Peak power of a motor will be the same with either a mag or MSD but MSD ignition will start easier(especially on alcohol) and be cleaner on restarts.
      A droop rule is like infield tractor tires, everyone knows it's stupid, but they still keep doing it.

      Comment

      • MasterSbilt_Racer
        Senior Member
        • May 2007
        • 14303

        #4
        Only thing I ever had against them was the need to kill battery and ground them out to kill the engine.
        Modern Day Spec Wedge Racing

        Comment

        • perfconn
          Senior Member
          • May 2007
          • 3573

          #5
          Magnetos generally run a spark plug gap of .022 while MSD ignition boxes allow much larger gap.I run .040 with my engines.

          Comment

          • TheJet-09
            Senior Member
            • Jul 2013
            • 1616

            #6
            I never ran one, but don't you have to remove them if welding on the chassis? Seems like that would be a pain.

            Don't Sprint cars run them still?

            Comment

            • perfconn
              Senior Member
              • May 2007
              • 3573

              #7
              Yes but they don't have batteries or starters.

              Comment

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