☑ Dual Ballast Resistor Chrysler

The ohms are different from top to bottom side to side. Dual ballast provides two sources by two diff resistances.

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Single ballast just provides power for the coil.

Dual ballast resistor chrysler. The single ballast resistor and the low resistance side of the dual ballast is a form of current regulator. Breaker point ignition. How is the ballast resistor tested to see if it is in working condition and functioning.

How to wire mid 1970s through mid 1980s ignition systems retrofitting electronic ignition on vehicles that originally had points. Resistance varies depending on which one and application between 15 and 25 ohms. As the engines speeds up resistance decreases which raises the voltage in the ignition primary circuit.

The 4 prong ballast resistor was used in factory installed breakerless ignition systems from chrysler. In a nutshell one side of a dual ballast resistor protects the coil from high voltage when the engine is running at a low rpm. If you buy the mopar performance electronic ignition system it comes with extensive instructions wiring diagrams and other information.

One is 5 ohms secondary which feeds the stock 5 pins ecu and the other one is anything between 15 or 5 ohms primary which feeds the coil. In their electronic ignition systems chrysler utilized a dual ballast resistor again to extend coil life and provide a constant primary current with the system also bypassing the resistor to. Both sides still function in a start and run capacity just as a 2 prong eg.

The term ballast used used to mean just that in older electronics the resistance actually varies with the amount of average current through the ballast. 1970 later applications ballast resistor 14 ohm each if you own a chrysler then you need one of these mancini racing ballast resistors to protect your ignition from voltage spikes. I tried this test supplied 12 volts to on terminal and got a 12 volt reading on the other side of the terminal does this mean it is garbage or does the resistor need to heat up to lower voltage.