Just out of curiosity, has anyone given any thought to using the Lucas
electronic dizzy, but just for the magnetic pickup? You could then use
whatever control circuit suits your fancy. It should be easy enough to adapt
either a complete MGB-style electronic unit, or perhaps even use just the
guts in an Alpine distributor.
Maybe there's a good reason NOT to do this?
Jon Arzt
Omaha, NE USA
>From: Jarrid Gross <jarrid_gross@earthlink.net>
>Reply-To: Jarrid Gross <jarrid_gross@earthlink.net>
>To: bmounce@impop.bellatlantic.net
>CC: CANISDOG@aol.com, eee1@snowhill.com, alpines@autox.team.net
>Subject: Re: Pertronix Ignitor Problems
>Date: Wed, 07 Feb 2001 22:33:47 -0800
>
>bmounce@impop.bellatlantic.net wrote:
>
> > Hello all: I have a question on all this stuff, this seems like a good
>time to
> > jump in. My uncle and cousins who have a race team suggested I go to a
>MSD
> > unit, multiple spark discharge. I was going to stick a Petronix on, but
>my
> > cousin suggested that since the hotter spark from the MSD would not be
>going
> > through the points (they would only be used to send a signal to the MSD
>to fire,
> > the MSD would be routed around them), that the electronic ignition was
>not
> > necessary. I asked about float, but it was felt that with a 4 cylinder
>car not
> > revving real high, it was an unnecessary concern. Thought or comments?
>Thanks,
> > Bill
> >
> > CANISDOG@aol.com wrote:
>
>Using points to trigger an MSD sort of blows away the reason for
>really wanting to get away from points in the first place.
>
>Points wear whether they carry the coil current or not, that is
>that the rubbing block wears and the timing changes.
>
>As for MSD giving a hotter spark, no. Spark is a function of the
>coil used, the coil voltage and the amount of dwell or pre-ignition
>time the coil is given to build its magnetic field.
>
>MSD uses thier own coil, which is a so-so coil with lower
>inductance than most.
>MSD gives up to 3 decent sparks per spark event, but only at lower
>RPMs. At higher RPMs you get 2 or just the normal 1 spark,
>which puts you back to what every other electronic ignition system
>does for you.
>
>MSD does have its place, it can do wonders for light throttle misfire
>on heavily cammed engines, but on an otherwise stock alpine engine
>you would be wasting your money.
>
>BTW, if you are still hell bent for the MSD, I'd still use a pertronix
>or other electronic ignition to trigger the MSD. That way, you set the
>timing, and forget it forever....
>In theory anyhow.
>
>
>Jarrid Gross
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