ddestruel

Here is one worth discussing and pooling our thoughts and info on, since we all know if it hasn't happened yet (which i doubt, cause the common rail has been out too long now) someone is going to get going on doing this. What would be involved with sticking the 305 HP or the 325 HO common rail motors into our GEN 2 trucks. Are they a stand alone computer, what wiring woes ect.

Anybody up for pondering this. Best to address it early and get info accumulated vs waiting till the time you actually decide to do it.

psalm69

I'm just wondering why. If it is for noise purposes I can understand it, but I can't see much more of a reason than that. It seems to me, from a performance aspect, the 12 and 24 valve motors have a distinct advantage in this case: the aftermarket is already very well established. Further, it seems to me, the potential of an ISB is greater than that of the ECHO. I could very well be missing something here, but that's my take.

Smkndzl

There shouldnt be much problem other then the ECM issue with the dodge trans , I am not up on dodge requirement for ecm for the trans , I do know that with the 04.5 the trans is controlled with just one ecm which is the CM848 used on the engine , we install many CR engine in older buses that use the older Allison trans, but these engine use the CM850 ecm. so I would get a CR engine out of a RV and go for it, the RV version is 300hp with 660 ft.lbs. , it will alread have the CM850 and if your using a standard tranny even better....

SuperSonic

fordcummins.com has a stockpile of CR motors that they are putting in fords. They could probably shed some light on the complexities of putting a CR motor in a truck. They have even been able to make the cruise and guage cluster work with the Cummins motor

Haulin_in_Dixie

The commercial common rail engine is different than the Dodge, the housings are different and it has rear timing gears. If the commercial engien is used in a pickup, the SAE bell housing will have to be used. It is not removable.

Smkndzl

Good point there Dixie , wasnt even thinking about that part, LOL this is going to take some research ,

Haulin_in_Dixie

Now I don't know from experience that this is true for the 03 and 04 motors but the ECM on the ISB controls the engine. The Commercial version of the ECM has other features that Dodge took over with the PCM. The dodge engine will run just fine without the PCM, just have no gages, charging and cruise.

When I installed mine everyone said that the electronics were different on the commercial engine with the Cummins ECM. I installed the Dodge harness with the Dodge ECM and left all the electronics of the commercial engine. Works great.

I would not be the slightest bit shy of putting an ISB in an earlier truck with no computer. It just would not be a problem with manual oil pressure gage and manual temperature gage. I am not even sure that you could not use the electronic gages will a little digging on the wiring of the ECM.

infidel

Don't know anything about it but here's a guy who has a bunch of brand new ones for sale. Came from a train that derailed with a load of pickups.
http://cgi.ebay.com/ebaymotors/ws/eB...477310900&rd=1

Smkndzl

On the truck engine we offer cruise , so wiring that in would not be that big of a job , the gages on the commercial engine on the truck are OEM sensor on the engine and they usually are manual oil and electric coolant temps. not Cummins , so that is not a problem.

Smkndzl

Hey Dixie

are you not running cruise on your 275 version ?

Haulin_in_Dixie

Unfortunately due to the shortness of time, I put off converting to the Cummins ECM and installed the Dodge ECM. Everything else is commercial, injection pump and all.

ddestruel

Lack of the VP44 and lift pump nightmares. Moreso this is going to become a debated issue soon as people start exploring avenues for replacing thier cracked "53"'s with something. just my .02


Good info on the comercial motors.