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Posted by Todd Wilson on Sunday, April 27, 2008 at 22:42:30 :
In Reply to: Ballast Resistors posted by Will (in IL) on Sunday, April 27, 2008 at 12:21:18 :
As far as I know Mopar has 2 different ballast resisters. One for points distributors and one for the ECU Electronic ignition.
The ballast is used to drop the voltage to the coil down but on start up it needs more juice so you are running juice to the coil from both sides of the ballast. Common ballast failures on Mopars will be the will start and run with the key still in the start position but die when you let the key off to the run position. Starts up and you let go of the key planning to take off and it dies.
This happens 99% of the time.
I have seen it one time where a ballast was causing an ignition problem with a miss.Only time I have ever seen it and never would have believed it if it had not happened to me.
With your Mopar electronic ignition you should only be using the ballast that came with it. I think the Super Coil has an extra ballast to use in line if you are still using points. Might double check this.
You'd still be better off throwing that Holley injection in the garbage.
I have seen offroad setups where they just mount 2 ballast resistors side by side and if one fails you unplug from one and go to the other.
Todd