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Doesn't using a ballast resistor require two circuits; one for
starting (no resistor, hotter spark) and one for running (resistor
for cooler running coil, less erosion of points)? AFAIK, no Big
Healeys used a ballast resistor with requisite two circuits.<br>
<br>
<br>
<div class="moz-cite-prefix">On 4/17/2023 10:47 AM, Kees Oudesluijs
via Healeys wrote:<br>
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cite="mid:711e8201-788b-2524-2b70-4db84ce32122@chello.nl">
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<p>The Pertronix ignition (and many other electronic ignition
systems) usually needs a resistance of 3 Ohm. A lower
resistance may lead to failure of the Pertronix. A 1,5 Ohm coil
should be used together with a 1,5 Ohm ballast resistor. If you
use a 3 Ohm coil you will not need the ballast resistor.<br>
Kees Oudesluijs<br>
</p>
<div class="moz-cite-prefix">Op 17-4-2023 om 16:30 schreef Tom
Felts via Healeys:<br>
</div>
<blockquote type="cite"
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<div>For those who use Pertronix AND a 40K coil, have you ever
used a 1.5 ohm coil in your Healey? Reason for asking---I
believe my coil to be going bad, so will replace it. I have a
Pertronix 1.5ohm coil. it states that 6 cylinder engines need
to use the 3 ohm coil--unless you are in a racing mode. just
wondering if any of you use the 1.5, and if so any
problems----i.e., what is the downside of using the 1.5?</div>
<div><br data-mce-bogus="1">
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<div>thanks</div>
<div>Tom</div>
<br>
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