Hei Distributor Wiring Diagram Ballast Resistor

How to wire the ignition on a classic or old car with.

Hei distributor wiring diagram ballast resistor. Each part should be set and connected with different parts in specific manner. If not the arrangement will not function as it ought to be. Failure to use an ignition ballast resistor will eventually destroy the ignition module. The purpose of an ignition ballast resistor between the ignition switch 12v and the ignition coil positive terminal is to restrict current flow through the ignition coil.

In order to achieve this the ballast resistor or the resistance wire must be removed from the circuit and replaced with a pure 12 gauge feed wire. Replace the wire with a 12 gauge copper stranded wire. If converting from a point type ignition remove any resistance wire or ballast resistor that may have been previously used. Connect the flame thrower wire harness and vehicle wiring harness into the distributor cap.

That s a fine tutorial on how to install a mopar electronic ignition box but a gm hei module creates a hotter spark and doesn t use a ballast resistor. This feed wire must be 12 gauge from the ignition switch to the bulkhead and then from the bulkhead to the hei power terminal. When using hei the distributor requires a 12 volt feed. Also you will need to move the distributor pick up wire between systems.

Points style distributors do use 12. Figure 1 unilite wiring diagram using ballast resistor note. If a resistance wire is present. Get a standard chrysler electronic ignition distributor wrecking yard auto show etc.

I would power the new hei system through a relay. The other side of the relay would go to the new hei system. The relay would be energized by the blue wire on the ballast resistor and one side of the relay would go to the alternator output stud through a fuse. The way i do it.

Gm hei electronic distributor how to wire and run install.