I spoke with a "Mopar" person who's been working on them for a long time
(and former president of Mopar Alley) and he doesn't know of a "Multiple
Spark" unit that came "factory" on any of the older vehicles. His old Dart
340 didn't have it (and it came with the optional electronic ignition
system), neither does his Fury or Challenger. They did offer the
"Electronic Ignition" upgrade instead of the conventional points system back
then.
If you hook up the Dakota (or most other vehicles) to an automotive
oscilliscope (tested on an older SUN machine) and watch the spark "hits"
(Spark Waveform), there's only one...not multiple. I had that tested when I
first installed the MSD (two years ago) on the truck at a local shop to make
sure that the MSD was working (before & after). Once the MSD was
installed...multiple "hits" appeared.
If you read the Magnusson Moss Act, you'll find that they can't void your
warranty just because you have aftermarket parts installed. Let alone an
MSD box. The two local dealers that I took my truc to for waranty work all
asked how the MSD box was working and all stated that they recommend them
for an aftermarket bolt-on. (One service manager also stated that he didn't
care if the MSD was installed as long as it wasn't causing any warranty
related problems.)
----- Original Message -----
From: "Shane Moseley" <smoseley@ix.netcom.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, March 30, 2000 12:33 PM
Subject: Re: DML: MSD Ignition upgrades
> "Bernd D. Ratsch" wrote:
>
> > First off, the factory ignitions are not Multiple Spark (so there's one
> > reason)
>
> Whats the source of this information? Not that I don't believe you - I
just
> would like to research it further. I do believe you - in fact, even
though Ma
> Mopar has been using capacitive-discharge, multiple-spark ignitions for
years -
> in order for them to be using that in our trucks - it would have to be
built
> into the PCM considering the fact that the PCM controls all grounding of
the
> primary side of the ignition coil.
>
> > , second...why pay more from Mopar when you can get if from the
> > actual manufacturer (MSD) for less.
>
> My first impression here would be because Chrysler would be forced to
support
> it - even troubleshoot and/or replace it if any problems were encountered
with
> it. On the other hand - if it were purchased from MSD (or any other
supplier)
> - Chrysler could use that as an excuse to not only refuse to work on your
> vehicle but also to potentially void any and all warranties. Thats a huge
> difference for the few dollars saved.
>
> > In my case, the engine runs/accelerates much smoother, I can easily
retard
> > the timing for the Nitrous System, and I get close to 1 mpg better (on
the
> > average...not just highway). No technical answer required...just a
fact.
>
> Which were facts?
>
> Latr,
>
> Shane
>
> --
> '96 IndyRam-HisIndy-MPI/TB/Pulleys/Coil/Wires/CompTAs
> '96 IndyRam-HerIndy-numbered(#142)"Track Truck"
> '74 Triple-Black Dodge Challenger Rallye 360 home-brew EFI R&D vehicle
> '68 Black Corvette Convertible 427 (For Sale)
>
>
>
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