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tubman · 07-06-2025, 07:44 PM

Now that we have all the information, we can consider the original question.

I am rewiring my 40 Ford and I see there is an ignition resistor on the board with circuit breaker and my question is do I now buy a non resistor coil?"

My advice, since you are essentially using an 8BA engine, is to bypass the '40 ignition circuitry completely and just run the ignition lead to the 8BA (or compatible) coil. 8BA's did not use a resistor coil. I believe a Bosch "Blue" coil from a Volkswagen is an acceptable substitute.

07-06-2025, 07:44 PM	#12
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 11,629	Re: Resistor Coil Now that we have all the information, we can consider the original question. I am rewiring my 40 Ford and I see there is an ignition resistor on the board with circuit breaker and my question is do I now buy a non resistor coil?" My advice, since you are essentially using an 8BA engine, is to bypass the '40 ignition circuitry completely and just run the ignition lead to the 8BA (or compatible) coil. 8BA's did not use a resistor coil. I believe a Bosch "Blue" coil from a Volkswagen is an acceptable substitute.