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.Now
Available $29.00
Upgrade to
the newer
80 AMP Alternator
These Alternators are available at all
FBO dealers World Wide
Got a early Mopar with the points type regulator
and 55/60 AMP Alternator?
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. Keep your early Mopar looking Original
with our 80 AMP Upgraded Alternator and the VR-1 Regulator.
Back to Electrical Page
Back to Catalog index
Back to Tech Section
Back to Main Page
Email
541-942-5920
FBO DEALERS WORLDWIDE CLICK HERE
FOR LOCATIONS
Page last update 02.23.11