THe Flamethrower coil probably has built in resistance and doesn't need an
external ballast resistor. Many coils for newer cars have that feature.
However, the Pertronix unit itself needs resistance or else the electronics
will burn out. I have one and read that part carefully after it was brought
up at a MG meeting.
The stock coil for our cars don't have resistance and you need to run a
ballast resistor.
Any coil having more than 3 ohms of resistance has a built in resistor.
Mike
----- Original Message -----
From: "Doctor Evil" <doctor_evil@fastmail.ca>
To: <datsun-roadsters@autox.team.net>
Sent: Monday, February 25, 2002 10:02 PM
Subject: Re: Pertronix ignitor and flamethrower coil?
> It's a fact, Jack
>
> I'm running this setup in my roadster. The ballast resistor is
> important for the points ignition, but when you go to the electronic
> ignition, it's not necessary. What I did was to remove the stock
> coil and ballast resistor on its bracket (the flamethrower won't fit
> in the stock mount anyway), and have one of my buddies who's building
> a plane in his basement to fabricate me a custom coil holder from
> aluminum (and a nice stereo mounting plate for the trunk).
>
> Dave
> 67 2000
>
>
> > I read on a Z list that if you install a pertronix ignitor AND
> > replace the stock coil with a stronger unit, such as the pertronix
> > flamethrower, than you do not need to run the ballast resistor,
> > meaning hotter spark (use larger spark plug gap).
> >
> > Is this true? Is it as simple as wiring the two sides of the
> > ballast resistor together? Or is this not true for our Roadsters?
> >
>
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