#1  
Old 09-20-2022, 10:33 PM
Zooguy Zooguy is offline
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Default Switched 12 volt signal

I have a 1966 Pontiac Star Chief

I need help finding a 12 volt source under the hood that turns on and off with the ignition switch but doesn't turn off power when engaging the starter. I need a 12-volt source to turn on the MSD ignition box.

  #2  
Old 09-20-2022, 11:37 PM
Goatracer1 Goatracer1 is offline
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If you can't find anything else connect a wire to your POSITIVE terminal of your ignition coil and use it to trigger a relay connected to your battery. It gives you a full battery voltage at all times that the car's ignition is "ON". It could also be used to power an electric choke. electric fuel pump etc.

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Old 09-21-2022, 09:46 AM
Mwieczorek Mwieczorek is offline
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I did a similar play on my 66 Bonnevillle to get 12V power to my HEI distributor. There is a lug on the fuse panel that is switched 12V. You can tap from that and run the wire up and out through one of the big rubber grommets in the fire wall.

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Matt Wieczorek
1966 Bonneville Hardtop Coupe (family cruiser that we take to car shows)
1967 GTO hardtop, 400HO, 4 speed (don't ask, its a basket case)
1973 Grand Prix SJ (currently doing a rolling restoration)

Trying to find that "sweet spot" between Roadkill and Concours d'Elegance
  #4  
Old 09-21-2022, 10:35 AM
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pfilean pfilean is offline
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A switched 12v in the fuse panel is probably not hot when starting. Would probably need to also run a wire from the starter solenoid.

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Old 09-22-2022, 06:17 AM
Zooguy Zooguy is offline
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Done

https://youtu.be/lDSAxCALwe0

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Old 09-23-2022, 09:40 AM
Mwieczorek Mwieczorek is offline
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I recognize that car. BEATERBIRD!!!

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Matt Wieczorek
1966 Bonneville Hardtop Coupe (family cruiser that we take to car shows)
1967 GTO hardtop, 400HO, 4 speed (don't ask, its a basket case)
1973 Grand Prix SJ (currently doing a rolling restoration)

Trying to find that "sweet spot" between Roadkill and Concours d'Elegance
The Following User Says Thank You to Mwieczorek For This Useful Post:
  #7  
Old 09-24-2022, 11:07 PM
Zooguy Zooguy is offline
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Yes it's me "the beaterbird"

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