Certain coils are designed for specific applications, and the
differences are in the resistance values of the windings within the coil
and the internal design. I used a MSD Blaster on my Mallory dual point
but had to use a 0.8 Ohm ballast resistor to keep it from overheating.
I ended up changing back to the Lucas sports coil because it performed
better and has the ballast resistor internally. Most of the electronic
ignition manufactures will list what coil to use and I would follow
their recommendation. Per Century performance: "If you do not have a
coil that meets the demands of the engine RPM and the type of ignition
used, you are likely to overheat and damage the coil or lose substantial
engine performance. In extreme cases we have seen coils overheat, boil
over, and catch the vehicle on fire. Do Not be one of these statistics".
Don
57' BN4
-----Original Message-----
From: Awgertoo@aol.com [mailto:Awgertoo@aol.com]
Sent: Tuesday, August 29, 2006 5:46 AM
To: efrenken@lctax.de; healey.nut@gmail.com; NPaul72464@aol.com
Cc: don@anglesey.us; jimp@parishpartners.com; healeys@autox.team.net
Subject: Re: Coil
In a message dated 8/29/2006 7:29:41 A.M. Eastern Standard Time,
efrenken@lctax.de writes:
Michael,
I've used Mallory and Pertronix for quite a while without resistor or
ballasted coil (1Ohm Flamethrower coil) and it worked like a charm.
------------------------------------------------------------------------
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Eric--
When I first installed the Unilite on my 100 I used the existing Lucas
sports coil without a ballast resistor and yes everything worked fine.
Then I read the literature more carefully and saw Mallory's statement
that this high voltage will lead to early module failure so I installed
the ballast resistor and in any case have not had a failure. That
system has been in place since 2002 and about 40K miles of driving.
When I recently installed a Unilite on my wife's 3000 I bought Mallory's
coil which has internal ballast. That works fine too.
It could be that the ballasted circuit is unnecessary but in my older
years I have found that compliance with instructions generally works out
better in the long run.
Best--Michael Oritt
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