The typical automotive ignition system prior to 1974 consisted of a coil and ballast resistor with breaker points to interrupt the current flow when a spark was needed. Connecting a ballast resistor is a fairly straightforward project but you will want to pay attention to the wiring.
Rpi Engineering V8 Engines
Ignition coil ballast resistor wiring diagram. Ignition coil ballast resistor wiring diagram welcome to my internet site this blog post will certainly discuss concerning ignition coil ballast resistor wiring diagram. The job of the ballast resistor was to inhibit current to a level that would not overheat the coil. This simple system is easy for even the novice mechanic to wire. Of course this meant that there was going to be a little less power getting to the coil. How to install a pertronix ignitor ignition system classic car episode 280 autorestomod duration. In a points type ignition the ballast resistor would help to keep the spark down and the coil from being burned up too quickly.
In the years when engines were a lot easier to work with a ballast resistor was used in order to prolong the life of the coil. As a matter of fact a bad diode trio in a conventional alternator can do the same damage. Autorestomod manic mechanic gasoline media 214019 views 1719. The purpose of an ignition ballast resistor between the ignition switch 12v and the ignition coil positive terminal is to restrict current flow. Some brands utilized a resistor in the coil or a resistor wire hidden in the wiring from the ignition switch but mopar put their resistor or ballast resistor on the firewall or inner fender.
Gallery of Ignition Coil Ballast Resistor Wiring Diagram
