Pertronix Flame-thrower 12 volt ignition source - Team Camaro Tech
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post #1 of 5 (permalink) Old Mar 17th, 13, 02:37 PM Thread Starter
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-Bill
 
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Pertronix Flame-thrower 12 volt ignition source

Hi Guys,
I'm going to run a in-line fused 12 volt 14g wire from the IGN post on the fuse box to power my Pertronix Flame-Thrower Billet distributer.
What I need to know is what amp fuse should should I use? I spent a a long time searching for the answer but it seems no one asked the question.
I'm thinking 20amp.
-Bill

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post #2 of 5 (permalink) Old Mar 17th, 13, 06:08 PM
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Re: Pertronix Flame-thrower 12 volt ignition source

I like fusible link better on continuous duty wires and its 2 sizes smaller so 16. 15A is recommended for 14g. You need to make sure the fuse blows before the wires burns. I would use a larger wire from a different source to make sure you have plenty of power. I have used the large purple wires from the bottom of the steering column (neutral lockout). Recently I used a relay on the firewall using the original dist wire to activate it and ran a big wire basically from the alternator via the horn relay (also fused) or a stud like I installed on the firewall that the charging wire from the alternator goes to. You can use that stud to connect other accessories that need full power. (like relays for your headlights)

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post #3 of 5 (permalink) Old Mar 17th, 13, 06:18 PM Thread Starter
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Re: Pertronix Flame-thrower 12 volt ignition source

Then maybe a 12g wire with a 20amp fuse?

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post #4 of 5 (permalink) Old Mar 18th, 13, 06:56 AM Thread Starter
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Re: Pertronix Flame-thrower 12 volt ignition source

Well I gave it some thought and now I'm thinking...
Would'nt it be smart to match the supply wire with the same gage wire that is on the distributer? That way the power to it would not be greater than the unit itself and match the fuse to the wire. So 18ga - 10amp fuse, 16ga - 13amp fuse, 14ga - 15amp fuse.
What do you think
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post #5 of 5 (permalink) Old Mar 18th, 13, 08:26 AM
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Re: Pertronix Flame-thrower 12 volt ignition source

I just pulled the cloth wrapped wire from the harness firewall block and substituted a regular 18 (orange colored in this case) gauge wire from an old wiring harness block into the old slot.

I needed to keep the IGN tab on the inside fuse block for something else and didn't want to double wire the tab. Plus, then you have to snake the inside wire through the firewall somewhere on it's way to the distributor. I know most folks wire their HEI/Pertronix distributors this "easy" way, but it just seems wrong to me.

I have the Pertronix II and it works great.
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