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Thread: Ignition coils

  1. #1
    NSRA member falcon's Avatar
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    Dec 2004
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    Ignition coils

    Hi I’m running a Cleaveland 351 with 4 double 45 Webber’s. The original coil has had its day . My question is are the flame thrower coils as good as they say . Iv got the engine running a old coil which came of a 3.5 rover. I’m thinking it won’t last long seeing the engine is 5.7+ the carbs ect cheers.

  2. #2
    My old rover had a ballast ressistor, ie 9 volt coil. A nice big spark at 12 volt but not for very long.

  3. #3
    NSRA member
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    Aug 2003
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    The coil doesn’t know what size the engine is, or what carbs are on it. Any decent quality 12 volt coil will put out plenty of spark.

    The only function of ballast resistor system is to improve starting. You run a 9 volt coil, the starter switching takes the ballast resistor out of the coil circuit when starting the motor, so the coil doesn’t suffer from voltage drop due to the starter motor dragging the power down. Once starter is released, the ballast resistor is back in the loop, coil seeing 9 volts.
    Polygamy is having more wives than you really need.
    Monogamy is essentially much the same thing.

  4. #4
    NSRA member falcon's Avatar
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    Cheers bud much appreciated

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