Yup. This is what I can tell ya about the PCM's...
Originally I was running with a Hypertech PCM on the stock PCM. Got knock occasionally, especially on warm days and when towing even a light/medium load. I then put on the Mopar CA PCM, which did make it so it didn't spark-knock as often.. Really only does it when towing a good load, so it did retard the timing from the hypertech, but not all the way back to stock. I just swapped it out and put the stock PCM in, see how I do......
Ken Allgood
97 CC SLT 5.2L
>
> From: "ScSilverdak" <scsilverdak@hotmail.com>
> Date: 2003/03/20 Thu PM 10:43:57 EST
> To: <dakota-truck@dakota-truck.net>
> Subject: Re: DML: Take your Dak to the track - drag racing basics
>
>
> Hhhhhmmmmmm.........I wonder if the Mopar PCM is pulling the timing back for
> some reason.
>
> I've seen this a time or 2 before, the OBD-2 PCM will pull the timing back
> under full throttle, a friend of mine had this happen to his Dak, he
> installed the full Magnum R/T package PCM, CAM , HEADERS, CATBACK, and it
> gained only like 20-25 hp........he was disappointed with the
> results....could be the same thing here.
>
> But then I'm just guessing here......only way to find out is to connect up a
> scanner and make a test run to see if the timings being retarded.
>
> Ron-
>
> ----- Original Message -----
> From: "Ken Allgood" <kenallgood@cox.net>
> To: <dakota-truck@dakota-truck.net>
> Sent: Thursday, March 20, 2003 9:47 PM
> Subject: Re: DML: Take your Dak to the track - drag racing basics
>
>
> >
> > No, what I'm saying is, this time I did not have the head wind and did not
> > have the speakers or spare tire, and add the mods in, and I still ran the
> > same ET I did 2 years ago...
> >
> > Ken Allgood
> > 97 CC SLT 5.2L
> >
> > ----- Original Message -----
> > From: "ScSilverdak" <scsilverdak@hotmail.com>
> > To: <dakota-truck@dakota-truck.net>
> > Sent: Thursday, March 20, 2003 9:16 PM
> > Subject: Re: DML: Take your Dak to the track - drag racing basics
> >
> >
> > >
> > > The head wind combined with the stereo equipment and spare tire may have
> > > been enough to offset the added performance parts.
> > >
> > > A number of local guy's last year took to removing the extra weight,
> hard
> > > bedcovers, tailgates, spare tires, and non-essential stuff in the cabs,
> > and
> > > setting up the sound systems so they can be pulled to reduce the weight
> as
> > > well.
> > >
> > > I've removed the spare tire and carrier from under my Dak, and ditched
> the
> > > stock rear bumper in favor of a roll pan .......I've also ditched the
> jack
> > > and tools that were in the cab...........I've got the total weight down
> to
> > > 4,300 lbs with a full tank of fuel.
> > >
> > > Ron-
> > > ----- Original Message -----
> > > From: "Ken Allgood" <kenallgood@cox.net>
> > > To: <dakota-truck@dakota-truck.net>
> > > Sent: Thursday, March 20, 2003 8:02 PM
> > > Subject: Re: DML: Take your Dak to the track - drag racing basics
> > >
> > >
> > > >
> > > > Actually, I was pretty disappointed with those times. 2 years ago, I
> > ran
> > > > the same, 15.8 at VMP. From my understanding, everyone was running
> > .2-.3
> > > of
> > > > a second slower due to a hugh headwind.. also add in the 150lbs of
> > > speakers
> > > > & box, and plus spare tire, I should have run .4-.5 quicker..... On
> > top
> > > > of that, I added a F&B 50mm TB, Mopar PCM, Accell ignition system, JBA
> > 9mm
> > > > wires and Gibson Catback exhaust, and I ended up running essentially
> the
> > > > exact same time..... :(
> > > >
> > > > Ken Allgood
> > > > 97 CC SLT 5.2L
> > > >
> > > > ----- Original Message -----
> > > > From: "ScSilverdak" <scsilverdak@hotmail.com>
> > > > To: <dakota-truck@dakota-truck.net>
> > > > Sent: Thursday, March 20, 2003 5:54 PM
> > > > Subject: Re: DML: Take your Dak to the track - drag racing basics
> > > >
> > > >
> > > > >
> > > > > Congrat's Ken!!!........pretty good times!.........I'm headed
> > > > > back to Pittsburgh Raceway Park after it opens in April!
> > > > >
> > > > > See if I can get a 15 second run myself.........made a few
> > improvements
> > > > this
> > > > > past winter........
> > > > >
> > > > > Ron-
> > > > > '01 Dakota Sport 3.9 Supercharged
> > > > > website:http://www.scsilverdak.com
> > > > > e-mail: scsilverdak@hotmail.com
> > > > >
> > > > > ----- Original Message -----
> > > > > From: <kenallgood@cox.net>
> > > > > To: <dakota-truck@dakota-truck.net>
> > > > > Sent: Thursday, March 20, 2003 12:01 PM
> > > > > Subject: Re: DML: Take your Dak to the track - drag racing basics
> > > > >
> > > > >
> > > > > >
> > > > > > Unfortunately at the VMP here, most of the time the whole area is
> > > > watered,
> > > > > cannot get around the burnout box.. so I always end up lighting 'em
> > up
> > > > > anyway. Unfortunately, having to go thru that with street tires
> makes
> > > for
> > > > > bad launches. Last time I went, I spun off the line almost every
> > time.
> > > > > Even my last run where I didn't really load up the RPM's at all and
> > > babied
> > > > > it off the line and ran a 16.0 (ran 15.8-15.9 other runs). Funny
> > thing
> > > > is,
> > > > > the first run in bracket racing, I spun out pretty bad off the line,
> > and
> > > > > still got my best run and broke out (15.80 on a 15.88 dial-in)..
> The
> > > > > Mustang GT I ran against broke out too, hehe... He ran a 15.38 on a
> > > 15.41
> > > > > dial-in.
> > > > > >
> > > > > > Ken Allgood
> > > > > > 97 CC SLT 5.2L
> > > > > >
> > > > > > >
> > > > > > > From: "RayB" <bpracing@worldnet.att.net>
> > > > > > > Date: 2003/03/20 Thu AM 11:23:39 EST
> > > > > > > To: <dakota-truck@dakota-truck.net>
> > > > > > > Subject: DML: Take your Dak to the track - drag racing basics
> > > > > > >
> > > > > > >
> > > > > > > For anyone wishing to visit a track to see how their Dak
> performs,
> > > or
> > > > > for
> > > > > > > those of you wishing to compete in ET bracket racing, this NHRA
> > site
> > > > has
> > > > > > > some valuable information.
> > > > > > > http://www.nhra.com/basics/index.html
> > > > > > >
> > > > > > > Take a look at all the categories there and you will be better
> > > > prepared
> > > > > and
> > > > > > > more at ease for your first/next visit to the track. Let me
> know
> > > if
> > > > > you
> > > > > > > have any questions not answered there.
> > > > > > >
> > > > > > > I encourage everyone to try this at least once. It's fun, fast,
> > > safe
> > > > > and
> > > > > > > inexpensive. Read your local track rules and familiarize
> yourself
> > > > with
> > > > > the
> > > > > > > track layout and local procedures. Avoid the burnout box at
> > first,
> > > > > > > especially/always with street tires, and launch from the
> starting
> > > line
> > > > > as
> > > > > > > you would from a stoplight. This will put no more wear on your
> > Dak
> > > > > than
> > > > > > > doing the same thing on the street. When you want to improve
> > your
> > > > > > > technique, identify someone there who appears to be a
> > knowledgeable
> > > > > racer
> > > > > > > (not a ricer ;-)) and ask for advice. Most will be happy to
> help
> > > > you.
> > > > > > >
> > > > > > > RayB
> > > > > > > http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > >
> > > >
> >
> >
>
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:01 EST