About to install a Pertronix Ignitor in the '69.... Is the ballast resistor there to save the points from burning out, or does it protect the coil? Wondering if I remove it, will the coil eventually fail?
I had a problem recently. Lets start from the beginning. I had points and stock stuff, so I replaced the points with an optical pickup, it said I needed a balast resistor, so I bought one. Well my car wouldnt run. Reason being, before I was only getting 6 volts to the coil when the car was started, therefore when I put the balast resistor there I was only getting 3 volts, not a enough for that optical pickup. The resistor is there to give you 6 volts with that optical pickup, if you are using the stock distributor. Correct me if I am wrong guys. With the pertronix, you dont need the balast resistor there.
In the installation instructions it tells you to leave the ballast resistor there if there was one there previously. There was a post on the Pertronix Ignitor a few weeks ago where someone was asking if you need to run a 12 volt source to the coil for it to work properly. My guess is no and that it will work with the resistor wire or ballast in place. I tried to reach someone in the Pertronix technical department to confirm this, with no luck.
67 RS Camaro 327/ 350 Holley 650cfm > Edelbrock Performer Intake > Pertronix Ignition > Accel Super Stock Coil and Wires > Hedman Hedders > Hotchkis Performance Springs > 15" Rallys all around
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On a breaker point ignition system, if you remove the ballast resistor, the coil will overheat with time. The case may buldge out, the top insulator may crack and eventually it will electrically open inside.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI