<div style="color:black;font: 10pt Arial, Helvetica, sans-serif;">
<div> <font size="2">I agree, a lot of electrons going through there, and the red plastic rubbing block on the modern points has its limit.</font></div>
<div><font size="2">Points are fine on a 4-cylinder engine, if all is kept in order, but a 6-cylinder at those revs is pretty much at the limit; it has to do with coil saturation time, the amount of time that the points are closed.</font></div>
<div><font size="2">There's a limit to how fast the points can be made to open and close, just like a cam/valve action, and the modern optical & magnetic units are instantaneous and allow max saturation time for a good spark.</font></div>
<div><font size="2">A 6-cylinder @ those revs would likely benefit from a modern unit.</font></div>
<div><font size="2">Glen</font><br>
</div>
<div> <br>
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<div> <br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Bill Tobin via Fot <fot@autox.team.net><br>
To: fot <fot@autox.team.net><br>
Sent: Mon, Sep 9, 2019 1:18 pm<br>
Subject: Re: [Fot] Ignition coil for 6 cylinder with points (racing)<br>
<br>
<div id="yiv0240578459">
<div>
<div>Jason, sounds like you have too much current going through the
points. Maybe try an external ballast resistor. (Ask me how I
learned this!).</div>
<div>Why not go Pertronix or other pointless distributors? KISS. But
always carry a spare!<br clear="none">
</div>
<div>Cheers, Bill<br clear="none">
</div>
<div class="yiv0240578459yqt6281591226" id="yiv0240578459yqtfd86075">
<div class="yiv0240578459moz-cite-prefix">On 9/9/2019 11:07 AM, Jason Sukey via
Fot wrote:<br clear="none">
</div>
<blockquote type="cite">
</blockquote></div>
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<div class="yiv0240578459yqt6281591226" id="yiv0240578459yqtfd63555">
<div dir="ltr">Had a wonderful time at the Glen, still chasing
some gremlins, but getting closer!
<div><br clear="none">
</div>
<div>I've been struggling with points on my GT6, before I throw
them away and buy a 123tune dizzy, I'd like to survey the
other 6 cylinder guys to see if anyone has found a good setup
that works with points.</div>
<div><br clear="none">
</div>
<div>My engine is about 12.5:1 compression, typically shifting
just under 7000 rpm, but will rev to 7300 rpm depending on the
situation.?? Lucas 25D6 dizzy built by Advanced Distributors.</div>
<div>NGK BP8ES plugs, .028" gap.</div>
<div>Points are the ones with the red plastic that come in the
green "lucas" box, gapped to .015"</div>
<div><br clear="none">
</div>
<div>The problem:?? I keep melting the plastic block on the
points causing the point gap to close up to zero.?? At the
suggestion of Jeff at Advanced Distributors, I replaced the
1.5 ohm coil with a 3.0 ohm coil (no ballast resistor).?? With
the 3.0 ohm coil, the points??seem to last, but the car won't
rev past 5000 rpm.</div>
<div><br clear="none">
</div>
<div>With the hotter 1.5 ohm coil, the car runs really strong,
and as long as I don't let the engine idle for very long, the
points will last a couple sessions.?? I've been thru three sets
of points, tried two different condensers all with similar
results.</div>
<div><br clear="none">
</div>
<div>The tow crew at Watkins Glen is very efficient, I pulled
off behind the armco on the pace lap and was still able to
watch all but the first two laps of the all Triumph feature
from the stands!</div>
<div><br clear="none">
</div>
<div>Jason Sukey</div>
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