Subject: Re: [Healeys] coils

From: Michael Oritt <[email-masked]>
Date: Tue, 9 Sep 2025 15:37:46 -0400

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I have been running a Mallory Unilite distributor and an MSD Blaster coil
with power routed to the coil through a 1.5 ohm ceramic resistor in order
to lower current and protect the ignition module.
At one time I wired a bypass around the resistor to deliver full current
for starting as Mallory suggests but I found that the car starts fine with
the reduced current so eliminated the bypass wire.

Best--Michael Oritt

On Tue, Sep 9, 2025 at 12:53=E2=80=AFPM Hank Leach via Healeys <
[email-masked]> wrote:

> I believe the ballast resistor was a unit which helped to keep a
> traditional set of points from burning/sparking.  The Jensen-Healey uses
> such an arrangement.  However, due to the inaccessibility of the
> distributor (under the manifold) I converted to Pertronix years ago. Then
> one day the car would not start. I mapped out the ballast resistor using =
a
> paper clip and was on my way. Hank
> --------------------
>
> From: "Engl via Healeys" <[email-masked]>
> Reply-To: "Engl" <[email-masked]>
> To: "Richard Antal" <[email-masked]>
> Cc: "Healeys" <[email-masked]>
> Sent: September 8, 2025 at 8:25 PM PDT
> Subject: Re: [Healeys] coils
> Rich
>
> I have petronix with the non-ballast Lucas Sportcoil (=E2=80=9865 BJ8).  =
I think
> the ballast coil is used only for cars with a ballast resistor in the
> ignition circuit (like the =E2=80=9872 Jaguar XJ6 I had).
>
> No experience with the Petronix coil.
>
> Bob England
>
> On Sep 8, 2025, at 2:28=E2=80=AFPM, Richard Antal via Healeys <
> [email-masked]> wrote:
>
> 'Greetings all,
>     My BJ8 has. a Pertronix ignition. Should it have a ballested or
> non-ballested lucas sport coil? I note the Moss catalogue has a Pertronix
> coil; does anyone have experience with this coil and is it a better choic=
e
> than the Lucas coil?
> Thanks to all responders.
> rich antal
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">I hav=
e been running a Mallory Unilite distributor and an MSD Blaster coil with p=
ower routed to the coil through a 1.5 ohm ceramic resistor in order to lowe=
r current and protect the ignition module.</div><div class=3D"gmail_default=
" style=3D"color:#3333ff">At one time I wired a bypass around the resistor =
to deliver full current for starting as Mallory suggests but I found that t=
he car starts fine with the reduced current so eliminated the bypass wire.<=
/div><div class=3D"gmail_default" style=3D"color:#3333ff"><br></div><div cl=
ass=3D"gmail_default" style=3D"color:#3333ff">Best--Michael Oritt</div></di=
v><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On T=
ue, Sep 9, 2025 at 12:53=E2=80=AFPM Hank Leach via Healeys &lt;<a href=3D"m=
ailto:[email-masked]" target=3D"_blank">[email-masked]</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>=
I believe the ballast resistor was a unit which helped to keep a traditiona=
l set of points from burning/sparking.=C2=A0 The Jensen-Healey uses such an=
 arrangement.=C2=A0 However, due to the inaccessibility of the distributor =
(under the manifold) I converted to Pertronix years ago. Then one day the c=
ar would not start. I mapped out the ballast resistor using a paper clip an=
d was on my way. Hank<br>-------------------- <br><br>From: &quot;Engl via =
Healeys&quot; &lt;<a href=3D"mailto:[email-masked]" target=3D"_blan=
k">[email-masked]</a>&gt; <br>Reply-To: &quot;Engl&quot; &lt;<a hre=
f=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt=
; <br>To: &quot;Richard Antal&quot; &lt;<a href=3D"mailto:[email-masked]=
om" target=3D"_blank">[email-masked]</a>&gt; <br>Cc: &quot;Healeys&quo=
t; &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">healeys@=
autox.team.net</a>&gt; <br>Sent: September 8, 2025 at 8:25 PM PDT <br>Subje=
ct: Re: [Healeys] coils <br>Rich</div>
<div>=C2=A0</div>
<div>I have petronix with the non-ballast Lucas Sportcoil (=E2=80=9865 BJ8)=
.=C2=A0 I think the ballast coil is used only for cars with a ballast resis=
tor in the ignition circuit (like the =E2=80=9872 Jaguar XJ6 I had).=C2=A0<=
/div>
<div>=C2=A0</div>
<div>No experience with the Petronix coil.=C2=A0</div>
<div><br id=3D"m_2581917486376414210m_3654695623792217899lineBreakAtBeginni=
ngOfSignature">
<div>Bob England</div>
<div><br>
<blockquote>On Sep 8, 2025, at 2:28=E2=80=AFPM, Richard Antal via Healeys &=
lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">healeys@auto=
x.team.net</a>&gt; wrote:<br><br></blockquote>
</div>
<blockquote>
<div>
<div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-s=
erif;font-size:13px">
<div>&#39;Greetings all,</div>
<div>=C2=A0 =C2=A0 My BJ8 has. a Pertronix ignition. Should it have a balle=
sted or non-ballested lucas sport coil? I note the Moss catalogue has a Per=
tronix coil; does anyone have experience with this coil and is it a better =
choice than the Lucas coil?=C2=A0<br>Thanks to all responders.</div>
<div>rich antal</div>
</div>
_______________________________________________<br>Support Team.Net <a href=
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</blockquote>
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</blockquote></div>

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From: richard mayor <[email-masked]>
Date: Tue, 9 Sep 2025 14:20:41 -0700

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There are two types of coils. Those that have an internal resistance of =
3 ohms and therefore do not need a ballast  resister. The other type has =
an internal resistance of 1.0 - 1.5 ohms and will burn up the points =
without a ballast resister in line with the coil. =20

A Pertronix or any other electronic trigger does not need a 3 ohm coil =
or a 1.5 ohm coil with ballast resister because it does not have points =
that would get burned up with a continuous 12 volts.=20

 =20
Richard Mayor
[email-masked]

> On Sep 9, 2025, at 8:51=E2=80=AFAM, Hank Leach via Healeys =
<[email-masked]> wrote:
>=20
> I believe the ballast resistor was a unit which helped to keep a =
traditional set of points from burning/sparking.  The Jensen-Healey uses =
such an arrangement.  However, due to the inaccessibility of the =
distributor (under the manifold) I converted to Pertronix years ago. =
Then one day the car would not start. I mapped out the ballast resistor =
using a paper clip and was on my way. Hank
> --------------------=20
>=20
> From: "Engl via Healeys" <[email-masked]>=20
> Reply-To: "Engl" <[email-masked]>=20
> To: "Richard Antal" <[email-masked]>=20
> Cc: "Healeys" <[email-masked]>=20
> Sent: September 8, 2025 at 8:25 PM PDT=20
> Subject: Re: [Healeys] coils=20
> Rich
> =20
> I have petronix with the non-ballast Lucas Sportcoil (=E2=80=9865 =
BJ8).  I think the ballast coil is used only for cars with a ballast =
resistor in the ignition circuit (like the =E2=80=9872 Jaguar XJ6 I =
had).=20
> =20
> No experience with the Petronix coil.=20
>=20
> Bob England
>=20
> On Sep 8, 2025, at 2:28=E2=80=AFPM, Richard Antal via Healeys =
<[email-masked]> wrote:
>=20
> 'Greetings all,
>     My BJ8 has. a Pertronix ignition. Should it have a ballested or =
non-ballested lucas sport coil? I note the Moss catalogue has a =
Pertronix coil; does anyone have experience with this coil and is it a =
better choice than the Lucas coil?=20
>=20
> Archive: http://www.team.net/pipermail/healeys =
>=20
>=20
> Unsubscribe/Manage: =
>=20
> =20
>=20
> Archive: http://www.team.net/pipermail/healeys =
>=20
>=20
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/healeys/[email-masked]
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">There are two =
types of coils. Those that have an internal resistance of 3 ohms and =
therefore do not need a ballast &nbsp;resister. The other type has an =
internal resistance of 1.0 - 1.5 ohms and will burn up the points =
without a ballast resister in line with the coil. =
&nbsp;<div><br></div><div>A Pertronix or any other electronic trigger =
does not need a 3 ohm coil or a 1.5 ohm coil with ballast resister =
because it does not have points that would get burned up with a =
continuous 12 volts.&nbsp;</div><div><br></div><div>&nbsp;&nbsp;<br =
id=3D"lineBreakAtBeginningOfMessage"><div>
<div>Richard =
Mayor</div><div>[email-masked]</div><div><br></div><br =
class=3D"Apple-interchange-newline">

</div>
<div><br><blockquote type=3D"cite"><div>On Sep 9, 2025, at 8:51=E2=80=AFAM=
, Hank Leach via Healeys &lt;[email-masked]&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div><div>I believe the ballast =
resistor was a unit which helped to keep a traditional set of points =
from burning/sparking.&nbsp; The Jensen-Healey uses such an =
arrangement.&nbsp; However, due to the inaccessibility of the =
distributor (under the manifold) I converted to Pertronix years ago. =
Then one day the car would not start. I mapped out the ballast resistor =
using a paper clip and was on my way. Hank<br>-------------------- =
<br><br>From: "Engl via Healeys" &lt;[email-masked]&gt; =
<br>Reply-To: "Engl" &lt;[email-masked]&gt; <br>To: "Richard Antal" =
&lt;[email-masked]&gt; <br>Cc: "Healeys" =
&lt;[email-masked]&gt; <br>Sent: September 8, 2025 at 8:25 PM =
PDT <br>Subject: Re: [Healeys] coils <br>Rich</div>
<div>&nbsp;</div>
<div>I have petronix with the non-ballast Lucas Sportcoil (=E2=80=9865 =
BJ8). &nbsp;I think the ballast coil is used only for cars with a =
ballast resistor in the ignition circuit (like the =E2=80=9872 Jaguar =
XJ6 I had).&nbsp;</div>
<div>&nbsp;</div>
<div>No experience with the Petronix coil.&nbsp;</div>
<div><br id=3D"lineBreakAtBeginningOfSignature">
<div>Bob England</div>
<div><br>
<blockquote>On Sep 8, 2025, at 2:28=E2=80=AFPM, Richard Antal via =
Healeys &lt;[email-masked]&gt; wrote:<br><br></blockquote>
</div>
<blockquote>
<div>
<div class=3D"yahoo-style-wrap" style=3D"font-family: Helvetica Neue, =
Helvetica, Arial, sans-serif; font-size: 13px;">
<div>'Greetings all,</div>
<div>&nbsp; &nbsp; My BJ8 has. a Pertronix ignition. Should it have a =
ballested or non-ballested lucas sport coil? I note the Moss catalogue =
has a Pertronix coil; does anyone have experience with this coil and is =
it a better choice than the Lucas coil?&nbsp;<br>Thanks to all =
responders.</div>
<div>rich antal</div>
</div>
_______________________________________________<br>Support Team.Net =
&nbsp;$12.75<br><br>Archive: http://www.team.net/pipermail/healeys =
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div>
</blockquote>
</div>
<div>&nbsp;</div>
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