Soooo, what would be involved with sticking a 6.7 into....

[RSchwarzli]

Been randomly thinking. (never good! )



IF, if I wanted to stick a 6. 7 into the 1990, what would be required to do so?



Not that I would necessarily go this route, but mentally I could not come up with all of the things I would need to do if I actually decided to go this way. :-laf







Thanks!



Robert

 

[SRay]

Bschwarzli: simple, use the 6. 7 crank and bore out your cylinders for the 6. 7 sized pistons while keeping the 12 valve rods. You would have a sleeper 6. 7 that's a 12v.

Or..... instead of looking for 6. 7 out of the newer trucks, look for a 6. 7 from CaseIH or McCormick tractors that's mechanical and also comes equipped with a 12 valve head that's identical to the 5. 9 12v head.

They've been using 6. 7 cummins several years before it found its way into the 2007 and newer ram trucks.

2 of my friends with McCormick tractors have 6. 7, one 2005 rotary injection and the other 2008 with computers.

 

[JHumphries]

Been randomly thinking. (never good! )

IF, if I wanted to stick a 6. 7 into the 1990, what would be required to do so?

Not that I would necessarily go this route, but mentally I could not come up with all of the things I would need to do if I actually decided to go this way. :-laf



Thanks!

Robert

Just skip the baby step and go straight for the 8. 3L!

 

[SRay]

Jhumpries: maybe instead of a 8. 3, how about a 2 stroke Detroit diesel?

 

[TLane]

If I were to do it, I'd find a wrecked truck in a junk yard and buy the whole truck. Get the engine and transmission together, along with every computer, the dash, the wiring harness, ignition switch, TIPM, accelerator pedal, brake unit, steering box, the VIN number, and every sensor (you might not need the frame and axles).

Don't get a burned truck but one that has been rolled and totaled.

I'd keep the whole thing until I had plenty of miles on the converted truck, then sell the remains of the donor truck for scrap.

Nothing is stand-alone in the new trucks, everything ties to everything else through a computer bus. Better get it all or something isn't going to be happy, especially you when you find out how much those pieces cost.

 

[Joseph Donnelly]

You aren't going to bore a 5. 9 out that far.

 

[cerberusiam]

All you need is the engine and the engine harness, everything else is going to be platform specific and a total pain to work the bugs out.

If you are staying with the NV it makes things a bit simpler, you don't have to mount the APPS in the engine bay. You can go with one on the pedal like the newer trucks.

If you have AC that will take some fiddling to get the correct hoses and fittings plus you will need a vacuum soure for the controls.

Need a hydro-boost system as there is no vacuum source strong enough.

Painless makes the wiring kit to put it all together for the engine. Dakota Digital makes a digitial gauge panels, and a signal converter to take either the VSS or ABS sensor signal from analog to digital.

Since you have a manual it may be possible to use the integrated Speed Control if that is part of the Cummins software. If it is not Dakota Digital has digital CC box but that will require engine mounted APPS.


The big question is how much of the peripheral controls are Dodge specific or Cummins specific. You will probably have to pretty much dump all the power trian and chassis controls as thye are not going to be easily adapted unless you rewire every single thing. That leaves what you can flash and control with a Cummins load. You will need a friend with the Cummins tools to load the ECU with the correct flash and figure out how many controls can actually be used. The cam\crank sensors will need to stay along with charging and AC controls, oil pressure and coolant temp, MAP and probably AIT also, and of course the fuel system harness.

You can probably figure on tossing the stock turbo and manifold so you wll need to source something decent. Getting rid of the EGR will be a great benefit but not to the HG with the stock turbo. Motor mounts are going to be an issue, the CR's mount in a different spot than a 12V due to the ECU bolted to the block. That will take some fabrication to move them to correct location in the body for the engine.

It all looks to be doable, just is going to take some fab work, electronics, wiring, and access to a Cummins tuner setup to make things fly.

 

[RSchwarzli]

Thanks for all the replys.

Yes, I have been pondering the computer flash as well. Would EFI live or something similar not work?

T lane - Good thoughts. Very true.

 

[cerberusiam]

EFI Live is a possibility, just not sure how much of the plaform stuff it can access and tweak. There is a LOT of plaform specific code in the 6. 7 ECU's that is going to have to be turned off because it doesn't exist in a transplant. All the DPF and emission stuff will need addressed and deleted. How much can be done and by what tool is the question.

 

[SRay]

Why go through all the trouble of electronics when there are mechanically injected 6. 7 cummins instead? Knowing Bschwarzli, electronics would drive him over the cliff. Everything has to be stone reliable according to him.



Also, such complexity for all the wiring, electronics, etc, the 1990 project will be collecting dust as his W350 is currently doing and the only vehicle he'll have left to drive is his 1968 Newport.

 

[JHumphries]

Why go through all the trouble of electronics when there are mechanically injected 6. 7 cummins instead? Knowing Bschwarzli, electronics would drive him over the cliff. Everything has to be stone reliable according to him.

Also, such complexity for all the wiring, electronics, etc, the 1990 project will be collecting dust as his W350 is currently doing and the only vehicle he'll have left to drive is his 1968 Newport.

That'll be fun this winter...

 

[Mikey-KE7LBB]

Very interested in this subject since I've been thinking about swapping a newer engine into my '92

 

[RSchwarzli]

Very interested in this subject since I've been thinking about swapping a newer engine into my '92

Welcome to the club.