[Aussie XAXB]

I have a 1966 Mustang and the carburetor utilizes a heated choke that gets heat through a tube that comes from the exhaust manifold. I want to put a modern carb on the engine (rebuilding engine) and wire up the electric choke that comes with the carb.

Does anyone know what's required to do that? Do I just need to run 12 volts to it that is keyed with the ignition switch or does it need to reference engine temperature somehow?

This is one thing I've never done before.

Steve

 

[4 Jaw Chuck]

It depends on the type of carb your installing, most factory electric chokes only require 12 volts except for some late model computer controlled carbs that get a pulsed signal from the computer that is referenced to engine temperature.

There are many kits of the market to make the conversion depending on the type of carb your running, all of them require a "key-on" 12 volt source to function. Usually you only need a positive wire since the housing is grounded to the engine. The coil positive wire is typically the closest power source.

 

[Aussie XAXB]

That sounds simple enough. Getting a wire to the choke that is keyed on is easy. Its a BG Road Demon carb. The engine is a 1968 Ford 302. I plan on picking up the carb in a week or two and I can't find anything online yet that tells what's involved to switch from one to the other like that......surprisingly.

Thanks,
Steve

 

[4 Jaw Chuck]

Holley conversion kit article.

Instructions for Holley conversion kit in PDF format.

Electric choke kit for Demon carbs.

 

[GypsyR]

Ford wired their electric chokes to the "STA" or stator terminal on the back of the alternator on many, many car models. On our old Mustangs this terminal is unused if your dash cluster has an ammeter. It's simple enough to run one wire from the choke to that terminal.
I have personally used this setup with Autolite carbs, Motorcraft/Holley 4180's, Holleys, and currently an Edelbrock carb that's been working just fine for the last 6 months or so.
Make sure the choke heater has some way of being grounded also. Factory stuff is usually grounded through the carburetor which can be a problem sometimes. Most aftermarket carb chokes have a ground wire that goes on to one of the carb base studs and works just fine.
They are a number of other ways the hook up a choke too, but this has to be the hands-down simplest. Its worked just fine for me for many years on a number of different Fords.

 

[Aussie XAXB]

THanks for the tips GypsyR

THanks for the links Chuck. I did find the parts kit for the demon carb but no explanation for hooking it up. I found some more info by changing my search words.

Thanks again,

Steve