Does anybody here know if the 2004 Hemi ram can be modified to use the 2006 or 2007/08 MDS systems. If so what is all involved. As an alternative do any of the programmers/chips/mods currently avalible allow a simmular cylinder deactivation? I am considering bying a 2004 Ram and want to help the truck to it's best possible mileage potental, so any other tips would be welcome. Unless that tip is to go and get a small car, as I all ready have one.

 

I suppose if you really know what you are doing you could purchase the lifters, solenoids, valves, etc. for an 06+ MDS Hemi, which would involve removing the heads and intake manifold. Oh, then you'll have to have a custom tune done for the PCM to make it work, but it's probably do-able. With the average 1.5-2 mpg most with MDS get better than those of us without, you might can make up the cost of the parts & tune within the first 80-100k miles. If you had to pay for the labor though, forget it, gas engines don't last long enough to make it pay off...
Yea, I think if you want MDS that bad, it'd be cheaper to pay the extra $2-3k the '06s are selling for over the '04s...

 

40% off sticker on 08s.

 

People spend more money trying to get better MPGs than they do if they would just suck it up and driving the truck as is.

If 12/17 mpg is going to hurt the pocket book that much, you will still be broke at 13/18 mpg.

 

I thought the MDS block had added oil passages in it? I could be wrong, though, it has happened once

 

yep, sure do.

 

mmm hmmm

 

Thanks. Ya I looked into getting a new 08, SLT full loaded with "Ram Jam" package for $29,000. Sweet deal, but the 04 is only $11,000 for a laramie. That is a lot less hawk and will be paid for in 2 yrs vs 5. The reason for the mileage questions is that going from 18 to 20 hiway for example, works out to $80/mo savings in fuel for me. If I add a few trips to that it can easily be $200 saved over that trip. I'm looking into many other options other than the MDS convertion (which now that there have been some answers to the thread seems unreasonable). Guess I will look for an '06 or newer dodge, or maybe a GM.

 

check out the post on hydrogen generators. bwhite is seeing some great results.

 

you can also do some things to gain MPGs for fairly cheap. what ive done and seen results from is royal purple, or another leading synthetic in the diffs and engine. i saw a solid 2 mpg increase just with that!