Mike Romain

So he has the Hemi with the MDS system in it like they put in the Jeep?

If so then the article I read must have been out of date. It said the
MDS wasn't used in the pickups because of load and reaction time
issues.

It would be interesting to know what he modified for the gain and if it
was a top or bottom end gain. Maybe there is a way to shut the sucker
down and stay in V8 mode?

I come from the muscle car days too and something like that really
messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
like there isn't even a gas pedal cable or linkage. All electronic. No
more shoe lace trail fixes. LOL!

Man, next they will be using microsoft in the ECU.

Mike

Matt Macchiarolo wrote:
>
> Not when he punches it. He does work for DC and he told me he had the ECM
> re-flashed to gain about 50hp...
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:41C7171E.548F739D@sympatico.ca...
> > You snipped that wrong.
> >
> > It's not the hemi that is the trouble, it's the ignition that makes it
> > run on only 4 cylinders. Hence my reference to the failed GM 8, 6, 4
> > engine.
> >
> > Ask you buddy if his hemi runs on 4 cylinders or not.
> >
> > Mike
> >
> > Matt Macchiarolo wrote:
> > >
> > > ??? You might want to ask my friend with a Ram with the hemi which
> engine he
> > > has...
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:41C6DB46.99FA4221@sympatico.ca...
> > > > One article somewhere said they couldn't use it on the pickup because
> > > > it, the engine, couldn't handle load.

Mike Romain

So he has the Hemi with the MDS system in it like they put in the Jeep?

If so then the article I read must have been out of date. It said the
MDS wasn't used in the pickups because of load and reaction time
issues.

It would be interesting to know what he modified for the gain and if it
was a top or bottom end gain. Maybe there is a way to shut the sucker
down and stay in V8 mode?

I come from the muscle car days too and something like that really
messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
like there isn't even a gas pedal cable or linkage. All electronic. No
more shoe lace trail fixes. LOL!

Man, next they will be using microsoft in the ECU.

Mike

Matt Macchiarolo wrote:
>
> Not when he punches it. He does work for DC and he told me he had the ECM
> re-flashed to gain about 50hp...
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:41C7171E.548F739D@sympatico.ca...
> > You snipped that wrong.
> >
> > It's not the hemi that is the trouble, it's the ignition that makes it
> > run on only 4 cylinders. Hence my reference to the failed GM 8, 6, 4
> > engine.
> >
> > Ask you buddy if his hemi runs on 4 cylinders or not.
> >
> > Mike
> >
> > Matt Macchiarolo wrote:
> > >
> > > ??? You might want to ask my friend with a Ram with the hemi which
> engine he
> > > has...
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:41C6DB46.99FA4221@sympatico.ca...
> > > > One article somewhere said they couldn't use it on the pickup because
> > > > it, the engine, couldn't handle load.

Matt Macchiarolo

I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
system. In a couple years the performance chips will probably be available
to do this.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:41C74A30.800817F3@sympatico.ca...
> So he has the Hemi with the MDS system in it like they put in the Jeep?
>
> If so then the article I read must have been out of date. It said the
> MDS wasn't used in the pickups because of load and reaction time
> issues.
>
> It would be interesting to know what he modified for the gain and if it
> was a top or bottom end gain. Maybe there is a way to shut the sucker
> down and stay in V8 mode?
>
> I come from the muscle car days too and something like that really
> messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
> like there isn't even a gas pedal cable or linkage. All electronic. No
> more shoe lace trail fixes. LOL!
>
> Man, next they will be using microsoft in the ECU.
>
> Mike
>
> Matt Macchiarolo wrote:
> >
> > Not when he punches it. He does work for DC and he told me he had the
ECM
> > re-flashed to gain about 50hp...
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:41C7171E.548F739D@sympatico.ca...
> > > You snipped that wrong.
> > >
> > > It's not the hemi that is the trouble, it's the ignition that makes it
> > > run on only 4 cylinders. Hence my reference to the failed GM 8, 6, 4
> > > engine.
> > >
> > > Ask you buddy if his hemi runs on 4 cylinders or not.
> > >
> > > Mike
> > >
> > > Matt Macchiarolo wrote:
> > > >
> > > > ??? You might want to ask my friend with a Ram with the hemi which
> > engine he
> > > > has...
> > > >
> > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > > news:41C6DB46.99FA4221@sympatico.ca...
> > > > > One article somewhere said they couldn't use it on the pickup
because
> > > > > it, the engine, couldn't handle load.

Matt Macchiarolo

I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
system. In a couple years the performance chips will probably be available
to do this.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:41C74A30.800817F3@sympatico.ca...
> So he has the Hemi with the MDS system in it like they put in the Jeep?
>
> If so then the article I read must have been out of date. It said the
> MDS wasn't used in the pickups because of load and reaction time
> issues.
>
> It would be interesting to know what he modified for the gain and if it
> was a top or bottom end gain. Maybe there is a way to shut the sucker
> down and stay in V8 mode?
>
> I come from the muscle car days too and something like that really
> messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
> like there isn't even a gas pedal cable or linkage. All electronic. No
> more shoe lace trail fixes. LOL!
>
> Man, next they will be using microsoft in the ECU.
>
> Mike
>
> Matt Macchiarolo wrote:
> >
> > Not when he punches it. He does work for DC and he told me he had the
ECM
> > re-flashed to gain about 50hp...
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:41C7171E.548F739D@sympatico.ca...
> > > You snipped that wrong.
> > >
> > > It's not the hemi that is the trouble, it's the ignition that makes it
> > > run on only 4 cylinders. Hence my reference to the failed GM 8, 6, 4
> > > engine.
> > >
> > > Ask you buddy if his hemi runs on 4 cylinders or not.
> > >
> > > Mike
> > >
> > > Matt Macchiarolo wrote:
> > > >
> > > > ??? You might want to ask my friend with a Ram with the hemi which
> > engine he
> > > > has...
> > > >
> > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > > news:41C6DB46.99FA4221@sympatico.ca...
> > > > > One article somewhere said they couldn't use it on the pickup
because
> > > > > it, the engine, couldn't handle load.

Matt Macchiarolo

I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
system. In a couple years the performance chips will probably be available
to do this.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:41C74A30.800817F3@sympatico.ca...
> So he has the Hemi with the MDS system in it like they put in the Jeep?
>
> If so then the article I read must have been out of date. It said the
> MDS wasn't used in the pickups because of load and reaction time
> issues.
>
> It would be interesting to know what he modified for the gain and if it
> was a top or bottom end gain. Maybe there is a way to shut the sucker
> down and stay in V8 mode?
>
> I come from the muscle car days too and something like that really
> messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
> like there isn't even a gas pedal cable or linkage. All electronic. No
> more shoe lace trail fixes. LOL!
>
> Man, next they will be using microsoft in the ECU.
>
> Mike
>
> Matt Macchiarolo wrote:
> >
> > Not when he punches it. He does work for DC and he told me he had the
ECM
> > re-flashed to gain about 50hp...
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:41C7171E.548F739D@sympatico.ca...
> > > You snipped that wrong.
> > >
> > > It's not the hemi that is the trouble, it's the ignition that makes it
> > > run on only 4 cylinders. Hence my reference to the failed GM 8, 6, 4
> > > engine.
> > >
> > > Ask you buddy if his hemi runs on 4 cylinders or not.
> > >
> > > Mike
> > >
> > > Matt Macchiarolo wrote:
> > > >
> > > > ??? You might want to ask my friend with a Ram with the hemi which
> > engine he
> > > > has...
> > > >
> > > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > > news:41C6DB46.99FA4221@sympatico.ca...
> > > > > One article somewhere said they couldn't use it on the pickup
because
> > > > > it, the engine, couldn't handle load.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

If it doesn't kill Cherokee, like it did Cadillac twenty five years
ago.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Matt Macchiarolo wrote:
>
> I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
> system. In a couple years the performance chips will probably be available
> to do this.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

If it doesn't kill Cherokee, like it did Cadillac twenty five years
ago.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Matt Macchiarolo wrote:
>
> I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
> system. In a couple years the performance chips will probably be available
> to do this.

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

If it doesn't kill Cherokee, like it did Cadillac twenty five years
ago.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Matt Macchiarolo wrote:
>
> I believe so. I imagine there is a way to re-flash the ECM to kill the MDS
> system. In a couple years the performance chips will probably be available
> to do this.

Lon

Mike Romain proclaimed:


> If so then the article I read must have been out of date. It said the
> MDS wasn't used in the pickups because of load and reaction time
> issues.

Would be easier to believe it was because of no mileage standards in
pickups...yet. As for the reaction time, the switch back to 8 cyl
mode is under 3/4 of a rev, making it under half of an ignition
cycle. Haven't seen any mentions of hemi hesitation in any of
the road tests of the hemi GC...which turns mid 6's to 60 in any of
the tests I've seen.
>
> It would be interesting to know what he modified for the gain and if it
> was a top or bottom end gain. Maybe there is a way to shut the sucker
> down and stay in V8 mode?
>
> I come from the muscle car days too and something like that really
> messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
> like there isn't even a gas pedal cable or linkage. All electronic. No
> more shoe lace trail fixes. LOL!

I come from the old muscle car era as well, having had the pleasure of
owning more than one engine over 7 liters with compression ratios in
in the 12:1 range. Although the thundering torque was a lot of fun,
a much smaller modern engine with modern engine management systems
does much better except in dim memories. Granted it was a lot easier
to hop up the old rat motors, wedge heads, etc. without a PhD, but
then again you actually *had* to do this to get anywhere near the
advertised performance except on a very few purposely underrated
homologation special models.

>
> Man, next they will be using microsoft in the ECU.
>

Hmmm, ya think that is what is causing the hesitation?

Lon

Mike Romain proclaimed:


> If so then the article I read must have been out of date. It said the
> MDS wasn't used in the pickups because of load and reaction time
> issues.

Would be easier to believe it was because of no mileage standards in
pickups...yet. As for the reaction time, the switch back to 8 cyl
mode is under 3/4 of a rev, making it under half of an ignition
cycle. Haven't seen any mentions of hemi hesitation in any of
the road tests of the hemi GC...which turns mid 6's to 60 in any of
the tests I've seen.
>
> It would be interesting to know what he modified for the gain and if it
> was a top or bottom end gain. Maybe there is a way to shut the sucker
> down and stay in V8 mode?
>
> I come from the muscle car days too and something like that really
> messes with the 'Hemi' idea. Wayyyy too many parts and crap. Sounds
> like there isn't even a gas pedal cable or linkage. All electronic. No
> more shoe lace trail fixes. LOL!

I come from the old muscle car era as well, having had the pleasure of
owning more than one engine over 7 liters with compression ratios in
in the 12:1 range. Although the thundering torque was a lot of fun,
a much smaller modern engine with modern engine management systems
does much better except in dim memories. Granted it was a lot easier
to hop up the old rat motors, wedge heads, etc. without a PhD, but
then again you actually *had* to do this to get anywhere near the
advertised performance except on a very few purposely underrated
homologation special models.

>
> Man, next they will be using microsoft in the ECU.
>

Hmmm, ya think that is what is causing the hesitation?