I have a Few questions on a electronic ignition install in a 67 Fury. It Has a LA 360 with a eletronic distributor but with a All stock engine harness. Had to ask before I did something wrong.
Is it wise to wire in a 70 & later style Voltage regulator?
And the original harness is also made for the stock 2 wire alternator.The alternator i am using is a later 70s style.
It's not a bad conversion, although there isn't much, if anything to gain by doing it.
The difference in the two systems is this... The earlier alternator has it's field connection grounded internally. It has one external field connection and that is the positive wire from the regulator.
The later alternator has two field connections. One is the negative connection from the regulator and the other is positive power. They call that an "isolated field".
So, you can figure out that the regulators are different, the early one controls the positive side of the field and the late one controls the negative side of the field.
In stock form, the early regulator is mechanical. There are points that "make and break" rapidly to limit the voltage to the field. The later regulator is electronic and does the same thing electronically and much faster giving a more constant output to the alternator.
So.... an electronic ignition conversion "requires" an electronic regulator giving a constant voltage. At least that is what Chrysler has always dictated in their conversion kits.
Since the conversion kits have come out, electronic voltage regulators for the early alternators have become more available.... and there are a number of people that have used the mechanical regulator on the conversion with no issues.
As I said, not a bad conversion and if you want to do it, there's nothing wrong with that.... but you can buy an electronic regulator from one of our members here pretty reasonably and leave all the wiring alone. Talk to
@FURYGT
If you want to use the later alternator (because you have it!) with the earlier regulator and wiring, all you need to do is ground one field connection and you're good to go.