I was wondering why someone told me never to use platinum plugs with boost
or nitrous. Now I know why. Thanks.
-----Original Message-----
From: Dennis Pendleton [SMTP:Dennis.Pendleton@harrisgrp.com]
Sent: Friday, January 29, 1999 4:01 PM
To: Bernd D. Ratsch; dakota-truck@buffnet.net
Subject: Re:DML: MSD Answers!
Since I was the originator of this particular recent thread I'd like
to say
thanks for forwarding this on to MSD! I'm going to replace the
platinums with
my old splitfires and see what happens. I'll let everyone know.
Thanks again,
Dennis
____________________Reply Separator____________________
Subject: DML: MSD Answers!
Author: bernd@texas.net (Bernd D. Ratsch)
Date: 1/29/99 4:14 PM
Check this out!
> Dear Sir,
>
> We do not recommend using platinum tip plugs with the MSD unit,
we also
> recommend gaping the plugs to .050 to .055 to obtain maximum
air/fuel
> mixture burn. The platinum plugs have a tendency to run hot and
can cause
> detonation. If you have your old plugs or pick up a standard none
hype
> plug one step colder and see if that helps. if the plug gets hot
enough
> and starts causing some preignition and the computer picks that up
it will
> retard the timing which can cause the poor mileage. Reset the
computer and
> take the truck out and drive it normally. This will cause the
computer to
> relearn with the MSD box in place and help over all. On the O2
Sensor, it
> is only affected when you are under a load condition or full
acceleration,
> with light load or cruising it should not add anymore fuel, it is
striving
> for 14.7:1 air fuel ratio.
> Thanks,
>
> MSD Tech
>
> ----------
> From: Bernd D. Ratsch[SMTP:]
> Sent: Wednesday, January 27, 1999 6:46 PM
> To: Joe LaPille
> Subject: Question...Problem
> Importance: High
>
> I'm part of a large Dodge Dakota Mailing LIst and we've been
seeing
> different scenarios with the MSD 6A boxes. I was wondering if you
could
> clear this up for us:
>
> Here's a copy of an email that's going around....
>
> MSD - OBD/II: Pro's & Con's
>
> Original Problem:
> "I just installed a MSD 6A ignition on my '97 Sport 3.9L and my
mileage
> went
> from
> ~20 to ~16 mpg's! I thought these things were supposed to
increase your
> mileage
> not take it away. Acceleration is much smoother and it seems to
have
> improved
> my power but...I have run 2 tanks of gas thru since the install
and kept
> my
> foot out of it on
> the second tank thinking it was my driving but the mileage seems
the same
> regardless. I also installed Magnecore's and Platinum 4+'s along
with the
> ignition but they wouldn't have any thing to do with the mileage
> decrease.Anyone seen the same thing?"
>
>
> Member Answers:
> (1) Are you supposed to run platinum plugs with MSD?
>
> (2) Your spark box/wires/plugs helps to burn the mixture BETTER.
so
> there's
> less
> oxygen left for the O2 sensors. Computer thinks less oxygen
content in the
> exhaust which means it's too lean and it enriches the mixture by
opening
> the
> injectors more. Therefore you're using more gas.
>
> (3) I hope you remembered to gap the plugs at .050. That makes a
big
> difference.
>
> (4) Reset the computer
>
> I personally also run the 6470 w/8207 Coil, Splitfire Wires/Plugs
(Gapped
> @
> .050") and haven't had anything but great success.
>
> Your help would be greatly appreciated...
>
> On behalf of the Dodge Dakota Mailing List - aka: DML
>
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>From: "Bernd D. Ratsch" <bernd@texas.net>
>To: Dakota Mailing List <dakota-truck@buffnet.net>
>Subject: DML: MSD Answers!
>Date: Fri, 29 Jan 1999 16:14:40 -0600
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