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Regular
Posts: 92
Location: montevallo, alabama | done gone blind looking, know I saw it on forum last year. got a 67 440 in my 60 dart and an electronic distributor and saw the multipage thread about a redo on the wiring to do away with some of the old engine electronics. |
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Regular
Posts: 92
Location: montevallo, alabama | found it and many more, just cant spell worth a toot I guess. balest wont get you any hits, lol. |
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Expert 5K+
Posts: 8443
   
Location: Perth Australia | If you have the original mopar distributor, theres not a lot you can do away with
If you go to a distributor with a built in ignition module or the gm style HEI distributor, you can loose some of it.
What are you trying to do?
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Extreme Veteran
Posts: 524
Location: West Jordan | The ballast resistor is there to drop voltage, I have not looked at the circuit but the reasons for dropping the voltage is coil, regulator, or gauge voltage. I would assume the Dart has 12 volt gauges so the only reason I could see it that it has a 6 volt coil. If that is what you have, replace the coil with a 12 volt coil and remove the ballast resistor and done. |
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Expert
Posts: 1352
Location: Springville, CA | I believe the ballast resistor is to reduce the running voltage to the points to keep them from burning up prematurely. It is usually switched out when the ignitioon switch is in the start position so as to apply full voltage to the points to make the car easier to start. |
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Extreme Veteran
Posts: 524
Location: West Jordan | True, but OP said he has an electronic dist, so only thing still there is the coil. |
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Veteran
Posts: 272
Location: Missouri | He should already have a 12V coil, seeing that his Dart is a '60; '55 Mopars were the last year for 6V systems. I don't know what other "old" electronics he'd be wanting to eliminate. Even the Mopar electronic ignition still uses a ballast resistor. |
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Expert 5K+
Posts: 8443
Location: Perth Australia | A coil for a ballast ignition in a 12v car is an 8v coil, not 6v, but Im not pulling hairs
This is very basically, because there are a lot of coils out there, but with a 12v car, there are basically 2 coil types, 12v and 12v-use with resistor (8v)
12v = no ballast, "12v use with resistor" means just that
Most electronic ignition systems did away with the ballast system as it wasnt really required because the spark produced was so much better than the points system could achieve
I dont recommend the transformer style of coil for older cars as they tend to burn out fast, where the canister (oil/tar filled) coils are a bit more forgiving.
You must not use a coil that is supposed to be for a ballast ignition on a system that has no ballast, it will burn out the coil and, if you have electronic ignition, most likely damage or blow up the ignition module.
You can use an electronic distributor in a ballast system, but its not recommended unless it was designed to use a ballast resistor, because, most electronic systems (for 12v cars) are designed to work on 12v, not 8v like it would get if it went through the resistor.
I would recommend (and do this myself) if you fit a late model type electronic ignition, either buy the whole kit and fit it to instructions, or buy what you need (if you have other stuff already), but make sure its compatible to the system your fitting.
This also applies to the pertronic conversions as well, you can fit the system and keep the ballast ignition, but you are better off changing the coil and bypassing or removing the ballast resistor for the same reasons
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Extreme Veteran
Posts: 524
Location: West Jordan | well i was trying to simplify the discussion, but ^ what he said. but since the water is muddy anyway, Mopar vehicles has ballast resistors up in to the mid 90s, on the fuel pump, just going for the last word, next...........:D
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help finding thread for ballast resistor upgrade
