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6.7 swap - Do I or? Have motor/trans with pics!

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Old 02-27-2010 | 07:37 PM
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6.7 swap - Do I or? Have motor/trans with pics!

Hey guys, i have a '95 12v that runs great, actually i have a reman'd longblock in it with about 12 miles lol.....

This truck is going to tow my 30' enclosed trailer, with my car in it, thats it. Now, the trailer & car weigh about 10,000lbs loaded, i know its not much of a task for a 12v BUT i got a GREAT deal on this motor/trans out of a wrecked truck that has 63,000 km - prob 40,000 miles

Now i know people are going to say "leave the 12v its fine" and i realize this, i've owned a few I also own an '03 and its a great truck too.

Im wondering, how much of a PITA is it going to be to make this functional. I have everything right down to the starter/alternator & can get anything else i need. I assume the box bolted to the drivers side on the block is all the wiring/cpu for the engine. I have all the wiring harnesses i think i will need.

I've done some searching, but not much info. The only thing im not sure about is the throttle - i assume its fly by wire. Am i going to need the gas pedal from the other truck or maybe just whats connected to it?

Im looking for a gain in performance AND power. I know the 24v have a MUCH broader power curve than my 12v, tons of torque at all throttle positions. Im not sure if this turbo is the "VG" style or not, the engine is from an '07 & not sure what month.

As for the fabrication/replumbing of the turbo system, etc im not worried about, lots of time on that stuff in my car. The trans is from a 4wd & it would be going into my truck - 2wd....i realize the back tailhousing & shaft would have to be changed & it so happens my best friend is also my trans guy, so that wouldnt be an issue at all.

Any help would be great, here's some pics....









Old 02-27-2010 | 07:50 PM
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I know I'm going to get some flak, but I love my 6.7 and the 6 speed auto. Yes, all 6.7's have the variable gain turbo. Do the deletes and get the smarty for the fooler and you will have an awesome truck.
Old 02-27-2010 | 07:52 PM
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Yea well i think i have no choice but to delete the emissions junk as my '95 didnt have any

Also, by the description i just gave my buddy, the trans the new 6 spd auto......and to covert it to 2wd its just a tailhousing & tailshaft yoke that slides over the existing

-Carm
Old 02-27-2010 | 08:01 PM
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I've heard painless wiring makes a wire harness for the 3rd gens not sure what yrs it ranges though... it might make swap a little less of an electrical night mare
Old 02-27-2010 | 08:23 PM
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Damnit, i just realized i posted this in the wrong section!

Can a mod move it over to the right section?

-Carm
Old 02-28-2010 | 09:13 AM
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Originally Posted by Stroked-Z
Damnit, i just realized i posted this in the wrong section!

Can a mod move it over to the right section?

-Carm
I would not say it is completely wrong in this 2nd Gen section (under 12 V or performance of course) and it could be good to run it in both 2nd Gen and 3rd sections for all of us to learn from.

After all you are trying to create a cross breed from both generations.

The box on the side of the engine is the ECM (engine control module) . You will also need the PCM (performance control module) from the truck you got the engine from. They both need to talk to each other to make the system work correctly as originally designed. For example the engine to run right and also to make the trans shift correctly.
Old 02-28-2010 | 11:50 AM
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I do have the other box as well, but i dont have the wiring. Im not sure if it's needed though, as all the wiring that comes from the ECM on the engine is already connected & the wires that plug into the trans & transfer case come from it as well.

Im assuming the only thing i will need (and have) is the gas pedal/box thats connected to it & i'll have to rig up the "OBDII" connector that was originally in the truck directly to the ECM somehow.

Please correct me if im wrong, this is just my assumption from an overview of whats there

-Carm
Old 02-28-2010 | 05:53 PM
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Come on guys help me out Maybe point me in the direction of some wiring diagrams etc!

-Carm
Old 03-01-2010 | 09:27 AM
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If I were you I'd keep it simple. P-pump that 6.7! That's the way to go, IMO! I've been waiting for someone to do it!
Old 03-01-2010 | 10:17 AM
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Well been trying to gather some info, and let me tell you there isnt much out there!

I dont want to P-pump it as i have everything needed to make this motor run! That would be the easy way lol, and its never easy anyways! With this setup, i can take advantage of the factory e-brake, 6 speed & smooth powerband....which is why i'm trying to get away from the 12v.

Talked to Suncoast today & they say the trans WILL shift if connected to the TCM & ECM....which i have both. So now i need to find a harness that will plug into both the TCM spots & wire it from there to the ECM....which of course is the ONLY harness im missing lol!

I guess i'll have to get around the Security somehow, found the wiring diagram & it doesnt look very difficult, although looks can be deceiving.

Any other tips/suggestions welcome.
Old 03-01-2010 | 03:58 PM
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Man that thing is filthy for only 40k miles on it
Old 03-01-2010 | 06:00 PM
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Dodge/Chrysler did away with the TCM's a long time ago and don't think they ever brought them back. The TCM is now integrated into the PCM, which is Powertrain Control Module and controls engine and trans stuff, as well as A/C, fans and many more nowadays. The PCM's have always done less on diesel engines though as Cummins has their ECM controlling most of the engine stuff, but the two communicate to each other. I'm sure what you are calling the TCM is really the PCM.

Hopefully that truck didn't have SKIM or you already have all of the keys and SKIM stuff. If not, the PCM is useless and you need a NEW one which has never seen a SKIM.
Old 03-02-2010 | 10:22 AM
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Originally Posted by rebal
Man that thing is filthy for only 40k miles on it
This is a TRUCK eh, trucks are used for work lol....not for show. The weather here takes it toll on work trucks.

I've decided to bypass this project & sell the **** thing since there isnt much info in swapping it. Hell, i just pressure washed it & blew it out, and cranked up the heat in the garage so it would dry out. Now someone's going to complain that its "too clean" for 63K KILOMETERS, not even miles!

It will go in the classifieds here then Evilbay if it dont sell. Too bad, would of been a very good upgrade for my 12v. I guess i'll just have to hop up the 12v for a lot more pulling power

-Carm
Old 03-02-2010 | 05:27 PM
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I scale right around 16k total weight with my stock 98 12v auto it won't win any drag races but will run as fast as I want to go 65-70mph.
Old 03-02-2010 | 07:26 PM
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The p-pump with a 4kGSK has a nice broad powerband. Just as nice as any 24v I've ever driven. I say check out the 4kgsk before you knock the p-7100.


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