Mopar Voltage Regulators

Points Style Voltage Regulators to Electronic
I call it the myth of the dual field alternator.  As you are aware, the pre 70 alternators have one pin.  The post 70 has 2.  Due to an article in Mopar Muscle a few years ago,  many Mopar Owners think that is because the alternator has a dual field.  This is false.  

If you've worked with electrical systems  you'll know that with a part like a relay, there are different ways to turn them on.  Some are turned on by grounding the low current side.  Some are turned on by powering it instead.  Either way the circuit is completed, and the relay comes on.
    
This is also the difference in the two charging systems.  With the one pin alternator, the
regulator controls the power side of the field current (with the old points style reg), and the ground is direct, inside the alternator.  

The two pin deal: system voltage on the first pin, then the field circuit is completed by
grounding, ( in the newer electronic reg), controlled to get desired output.

Therefore, the two pin alternator can be used in place of the single pin by grounding the second pin directly to the engine or body, at time of installation.  In fact, this is visible, if you buy a one pin alt.   The second pin, is grounded directly to the alternator case.

What regulator to use?  

You must use an Electronic Voltage Regulation if you run Electronic Ignition. The voltage fluctuations of the old points style regulator, will spike the power and damage your ECU. 

In the world of mass production, electronic regulators are cheaper to make than the points style.  The points type are full of expensive copper windings behind that black cover.  We have a few of the FBO VR-1 Regulators left as of 4.22.09, this is a stock appearing yet Electronic Voltage Regulator.  These are no longer made so when current stock is depleted that's the end of them.

$75.00 as shown---Add $50 when ordering our A688D Electronic Ignition Distributor Kit.

Full electronic Voltage Regulator disguised in a points style case.

This unit is also stocked in England at USA Imports

Got a early Mopar with the points type regulator, maybe it's time to Upgrade!

There are some low quality restoration type electronic type regulators on the market and some people recommend that you switch to the late model type with the 3 wire plug. We recommend doing away with the regulator completely and using the Tuff Stuff one wire alternator.  This alternator will easily install with one wire going from the alternator to the Positive side of the battery it also gives you 100 amps of power compared to your stock alternator which delivers 45-60 amps.

      In England Contact: USA Imports Neil
In Europe Contact: Partsstore  Jan (Yawn)
Fluent in 5 Common European Languages

Both these dealers will arrange importing of anything from cars to specialty parts as big as 1/4 panels and engines. If you need a great freight rate and you need it quick contact Jan or Neil and they'll make the arrangements. 

We air freight bi-weekly to both.


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Page last update 4.24.09