voltage drop...coil

[weldvair]

Does the Karmann Ghia require a voltage drop to the coil or take a full 12V.

Thanks Don

[Piledriver]

It takes a full 12v if it has the original 3-4 ohm coils.
If the coil has less resistance than 3 ohms it needs a ballast or some kind of dwell time control.

Given the ~20 feet of wire and going through the switch etc it will probably have 8-9v under load.
I still suggest powering ignition using a engine compartment mounted fused relay powered from alternator or starter power... with the switch just controlling it.
That applies to GM ignition switches too.

You have the chance to do it right, that is doing it right.

[weldvair]

Thanks .....you always give well thought out answers.

Don