I've been doing some checking and it seems that most coils for are
cars are 12v coils, rather it be a MSD blaster,
Flame-Thrower, Accel Super Stock etc... what's different is some are
internally resisted with different primary resistances rated in
Ohms,
just like the
ballast resistors are... ? it seems the lower Ohms rated coils,
say .
7 Ohms - .85 Ohms
have a higher maximum voltage rating like 45,000v, compared to 1.5
Ohms with a
maximum of 40,000v. there is also a secondary resistance, rated in
Ohms, and a
turns ratio etc... but, although, it still isn't 100% clear if you
need the ballast resistor with the
Mopar ECU? I'm reading stuff like the resistor is "Absolutely
required for points-triggered
ignitions equipped with coils that do not feature a built-in
resistor." ok or
"No ballast resistor is required when using Accel 41000, 51000,
61000, or 71000 series
Electronic Breakerless Distributors or when using Accel 300+
Ignition
Control Modules,
no matter what coil is used."
and the "Mallory Heavy Duty Porcelain Resistors have a 200 watt
rating and use threaded terminal connections for better wire
retention. Available for most standard point type or electronic
ignitions. This resistor has variable resistance values for improved
coldweather starting and is a direct replacement for old Mallory
Part
#650-25750-38 and #650-28127."
JEGS ballast resistor is designed to be used on low resistance
ignitions such as breaker point and some optical trigger breakerless
systems. Ceramic construction prevents overheating of the system for
durability while maintaining consistent coil current and spark
duration. Rated at 1.6 Ohm.
and I'm still looking, but I can not get a clear cut answer on
bypassing the MP ballast resistor, when using a
Mopar ECU, and one of these internally resisted coils ?? BTY
there is
no indication that the
Accel SuperStock Coil is internally resisted? so, Rich, what do you
think? how hot is your coil getting after
10 or 20 min. of use? I say if nothings heating up to much then
maybe
your ok. all I know, is my resistor
gets freaking hot and my coil after an hour long trip is just a
little to warm to touch?
clear as mud eh.
Schuyler
62 Dodge Dart 440 wagon w/ Poly 318
<http://www.1962to1965mopar.ornocar.org/ml-wrobel62.html>
FYI - I Do the Decal designs for the Poly head 318 and more!
email me
with your needs -
<sky62@xxxxxxxxxxxxx>
On Jul 23, 2009, at 11:17 AM, Rich Kinsley wrote:
If we're not using the Mopar coil we shouldn't need it. Right. I
have an
Accel Super Sport and I did away with the ballast resistor.
Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
===================================================================
==
Dennis C. wrote:
* STOP * REMOVE THE JUNPER * INSTALL THE NEW BALLAST RESISTOR *
First and most important the only bad question is the question
that is
not asked. Keep asking questions until you are satisfied with
all of
the answers.
The point ignition system used a ballast resistor and a low
voltage
(primary side) coil. When you turn the key to start the ignition
switch
bypasses the ballast resistor and puts full voltage to the coil
for
starting, when you release the key the resistor goes back in the
circuit
and reduces voltage to the coil.
The Mopar electronic ignition works about the same as the point
system
except the control box does the switching. As you found they
sent a
different ballast resistor. You need to use their new resistor
because
the coil is still designed to run at a lower voltage.
My Pertronix system was designed to run without a ballast
resistor. It
uses a 12 volt coil.
Don't mix apples and oranges, each system must be installed as
designed.
I think you very much like your new ignition system.
Take Care
Dennis C.
laborboy@xxxxxxxxxxxxx wrote:
I installed the jumper wire (probably 16 gauge, did not have a 12
handy). My last question, I promise: If we have to jump the
ballast
resistor,why does Mopar Performance include a new ballast
resistor in
its conversion kit, and have you install it if the voltage won't
be high
enough?
Zack
1996 Dodge Ram 3500 Van Conversion
1964 Plymouth Belvedere 318 Auto
1963 Plymouth Sport Fury 383 4-speed
1949 Dodge Pickup 289/C4 soon to be changed
1998 Honda Valkyrie Standard
Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies
----
Please address private mail -- mail of interest to only one person
-- directly to that person. I.e., send parts/car transactions
and
negotiations as well as other personal messages only to the
intended recipient, not to the Clubhouse public address. This
practice will protect your privacy, reduce the total volume of mail
and fine tune the content signal to Mopar topic. Thanks!
'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.