You have to remember that the biggest difference between the 96 and 97 318
was the weight that they are pulling....the 97 is slightly heavier, and has
a slightly different cam profile (slightly more aggressive)... The 96 PCM
was setup to bring the 96's performance up to the same level as the 97's w/
97 PCM...
in other words, the 96 PCM is slightly more aggressive than the 97 PCM...
I hope I didn't confuse anyone...
Later,
Tom "Slick"
-----Original Message-----
From: owner-dakota-truck@BUFFNET.NET
[mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Phil Jenkins
Sent: Sunday, February 11, 2001 7:33 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: 97-99 Mopar PCM for 318
Thanks Bob.
Have you checked into getting your gauges to work
with the 96 PCM? I'm guessing that most aftermarket
computers wouldn't work the gauges either.
What was the difference between the stock and the 97
PCM? Thanks again.
--- Bob Tom <tigers@bserv.com> wrote:
> At 03:03 PM 2/10/01 -0800, you wrote:
> > You guys or gals with a Gen III 318 or 360, what
> >kind of results are you getting with the MP PCM? I
> >have a 98 318, auto, with F&B TB, Leach headers,
> Borla
> >cat-back, 180 t-stat, 8mm Taylors, crank and alt
> >pullies, and elec. fan. Think thats all, I am
> curious
> >as to whether the OBD-II hampers results. Thanks.
> Phil
>
> Performance is hampered to the extent that more and
> more variables are inter-related and controlled
> through
> the PCM so that a change in one of the variables may
> affect another. The major limiter is the stiffening
> emission
> standards each year.
>
> I am running the '97 MP PCM CA version on the
> streets
> (no Federal version ... could not pass EPA), and the
> '96 MP PCM at the track. To date, the '97 MP PCM is
> about
> 8/10's slower at the track than with the '96 MP PCM
> in the 1/4.
> The timing in the '96 PCM is less advanced than the
> timing
> in the '96 right across the rpm but, more
> significantly I think,
> is that the '96 really retards the timing at the
> shift points (down
> to 7 degrees from about 22 degrees) ... again for
> emission
> reasons. '96 was the first year in which OBD-II was
> implemented
> (at least partially) into our PCMs.
>
> The '97 Dakota dash gauges were completely changed
> from those
> in the '96 so I have no functional OE gauges when
> using the '96 PCM.
>
> The only difference between '97 and '98, as far as I
> can think of,
> is that the speedometer reading due to tire size
> changes was via
> pinion gear on the '97 while the '98 was via
> flashing of the computer.
>
> Bob Tom Burlington, Ont., Canada
> '97 CC Dakota, 5.2L, 4x2, auto., 3.92SG, 4,265 lb
> (racing weight)
> Dyno: 231.2 rwhp 340.0 lb-ft
> rwtorque
> PB: 14.737 @ 91.75 9.364 @ 72.95
>
=====
Phil
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