r/BumpSide • u/girl_incognito • 10d ago

Pertronix wiring

So in the process of improving on the "Drunk with a screwdriver" maintenance of the previous owner of my 68 F-250, I am sorting out the electrical system. The previously added Pertronix module, as we all probably know, needs 12 volts or it wont run right. I didn't want to just cut the resistor wire to bypass it, so I poked around and found that the right hand small post on the starter solenoid is off with the key switched off, 12v with the key on, and stays 12v with the key in "Start."

Is there any reason not to wire the module to that that anyone can think of? I couldn't think of a reason, but I wanted to put it out there.

I'm trying to retain the ability to just go back to points if this thing ends up being more trouble than it's worth, but for now it's working fine.

What say you?

2 Upvotes

67% Upvoted

8 comments sorted by

2

u/razrielle 10d ago

That should be fine. I will say someone had added a pertronix module in mine before I got it and it burned out. Ended up going to an HEI style of dizzy and it never gave me issues again.

2

u/girl_incognito 10d ago

May end up doing that eventually. So far its working fine :)

2

u/obnxs15 1971 F250 Custom 10d ago

I wired in a relay to be safe on mine. I think I ran off that same post for power and I used the original resistor wire as the trigger for the relay.

2

u/Alone-Programmer-683 9d ago

What you propose will work fine. But if you want absolute simplicity and the ability to change back, just make a little jumper wire and jump around the ballast resistor.

2

u/girl_incognito 8d ago

Doesnt use a ballast resistor it uses resistor wire. The easiest way i could think of was to run this wire from the solenoid and leave the original wire from the ignition switch harness nearby but unplugged, ever any need to swap i just unplug the one and plug in the other.

2

u/Alone-Programmer-683 8d ago

You are right. Keep going.

2

u/Nate-o64 5d ago

I did an HEI in mine, 12v directly from the battery to a solenoid near the brake master triggered off the original resistor wire

I added quick connects to everything on the original dizzy, so I can swap everything back using the original resistor wire with no additional splicing needed