Pertronix Flame-Thrower III

R Moses

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• Oct 12, 2021

• #1

I have a 1975 Ranger with stock ignition. I have my Pertronix Flame -Thrower III from Wild Horses and I'm ready to install it. If I understood correctly it it do away with the Ignition Control Module. I assume I will use a wire that goes to the Ignition Control Module, Which one?

 

DirtDonk

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• Oct 12, 2021

• #2

Just checking in from my phone. If you just have a coil alone, that does not replace the ignition control module. You would need something to trigger the coil just like original. In this case a Pertronix igniter III.
If you replace the magnetic pick up inside the distributor with the correct Ignitor then you don't need the original Ford Dura spark module.

Is that what you were asking? Or do you already have the rest of the system?

 

68ford

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• Oct 12, 2021

• #3

Read the fine print, the version 3 uses a very low resistance coil. I have both the distributor with version 3 module as well as the really low resistance coil. Runs awesome. You will want to eliminate your "resistor wire" so you have full 12 volts at the positive side of the coil when in the run position.

 

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R Moses

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• Oct 13, 2021

• #4

Yes, I got the Distributor, coil and wires from the best Bronco Guys on the planet. Wild Horses 4X4. It's the Pertronix III system.

 

DirtDonk

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• Oct 13, 2021

• #5

Thanks! Then yes, you're good to go. You do eliminate the original modules as it's no longer part of the system.
What colors are the wires coming out of the firewall? If one is red with a blue (oops, I meant green stripe) stripe to the module you can use that one. However don't mix it up with the red with green stripe that originally went to the old coil because that is your resistor wire. You don't want to use that one as was mentioned.

In theory the one wire should be able to power both the distributor and the coil if necessary. But they tended to be fairly small gauge so maybe somebody else can comment on whether it's got the capacity to run both components. I don't know offhand how much current they take.

 

Last edited: Oct 13, 2021

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R Moses

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• Oct 13, 2021

• #6

Yes, there is a red wire w/blue and a white w/red and red w/white. I will use the red w/blue. There is are seven wires 4 on 1 plug and 3 on the other plug from firewall to ICM. I just disregard that cluster?

 

DirtDonk

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• Oct 13, 2021

• #7

I'm sorry I made a mistake. I'll have to go back and correct it. You don't want the red with blue stripe because that is powered in start only. Normally it would be a red with a green stripe is on with the key.
Sorry about that!

I'll have to look at the diagrams to see what the other colors do in that plug. Or you can check out Steve83's wiring diagrams posted here many times from his supermotors page. Also Seabiscuit has some as well.

 

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R Moses

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• Oct 16, 2021

• #8

Thank you again, I found Steve83's Motorsport page and the 75-77 wiring diagram. Looks you basically had it correct, it's the 1 of the 3 wires that's not red and white. Can't wait to get it hooked up.