It is time... Enter the age of the Cummins - Steel Soldiers::Military Vehicles Supersite

burbn10 · 07-30-2010, 05:37

The 6.2 is dying in my M1008 and I finally got my hands on a 12-valve 6BT Cummins. As soon as I find a NV4500 for a reasonable price, I am going to start on this project. I'll update this post as much as possible with pics and tips from the install.

For a starting point, I got a 1998 P-pumped 12 valve 6BT Cummins Turbo-Diesel from a Dodge 1-ton. It's already been modded. Has oversized delivery valves, 70+ injectors, 4000rpm governor springs, ATS exhaust and intake manifolds, and the killer dowel pin fix. It currently has a Banks Quick-Turbo upgrade, but I'm in the process of obtaining an ATS Aurora 3000 turbo to make it spin up faster and keep the EGTs down.

The plan is to back this engine up with a 5-speed (or 6-speed if the price is right) manual transmission (NV4500 or NV5600) into a NP205 transfer case. Like I said, as soon as I find a used one for a reasonable price, I'll get this ball rolling and start the build and documentation. Wish me luck!

niferous · 07-30-2010, 10:13

Do you have just the motor or the complete vehicle to work with?

ODdave · 07-30-2010, 10:44

how much lift do you have? what crossmember are you going to use? what t-case are you planing on?

cucvcan · 07-30-2010, 10:46

Is it going to fit?? I imagine you will have to upgrade the cooling capacity.

ODdave · 07-30-2010, 10:50

Quote:

Originally Posted by cucvcan

Is it going to fit?? I imagine you will have to upgrade the cooling capacity.

actualy the cooling cap on the idi 6.2 is better than the one the dodge came with. IDI engines run hotter.

burbn10 · 07-30-2010, 13:35

Quote:

Originally Posted by niferous

Do you have just the motor or the complete vehicle to work with?

Just the motor. Truck got totaled last winter and my buddy parted it out. Nothing I wanted off it anyways besides the motor, intercooler, and turbo plumbing.

burbn10 · 07-30-2010, 13:37

Quote:

Originally Posted by ODdave

how much lift do you have? what crossmember are you going to use? what t-case are you planing on?

4" lift. Avalanche Engineering crossmember/mount. I'll be using a NP205 transfer case from a 89-91 Dodge Ram to get the front driveshaft on the correct side of the vehicle.

http://www.avalancheengineering.com/new_products.html

niferous · 07-30-2010, 13:42

Quote:

Originally Posted by burbn10

Just the motor. Truck got totaled last winter and my buddy parted it out. Nothing I wanted off it anyways besides the motor, intercooler, and turbo plumbing.

I'm not as hot as I should be on Cummins motor swaps. With the older 12 valve motors do they have any kind of computer or stuff like that or are they pretty much mechanical just like the 6.2? I know that they were using vacuum to control the cruise control as my brothers busted a hose and we had to repair it. I'd like to do this one day to my Suburban!

1986Blazerk5 · 07-30-2010, 13:48

Sounds like a nice upgrade!, I'm jealous, how much did you pay for the motor

burbn10 · 07-30-2010, 15:22

Quote:

Originally Posted by niferous

I'm not as hot as I should be on Cummins motor swaps. With the older 12 valve motors do they have any kind of computer or stuff like that or are they pretty much mechanical just like the 6.2? I know that they were using vacuum to control the cruise control as my brothers busted a hose and we had to repair it. I'd like to do this one day to my Suburban!

The 12v Cummins is all mechanical like the 6.2. It weighs 1200lbs roughly and the stock engine can take a ton of power without failure. Mine had a computer hooked to it, but that was to control the electronically controlled 47RE transmission. I've fired the engine up sitting on the cradle before by just giving it a fuel source and hooking the battery to the starter and fuel shutoff solenoid. This is the only medium-duty application diesel put into a light-duty chassis.