Re: has any one considered this?
Actually, I think that Cummins is a small straight-6. The engine size, horsepower, and torque numbers are a bit better than the SD-33T, although close (not like it's a B5.9l or anything). It's an AT3.4 turbocharged engine. Looks sweet, too [img]/wwwthreads_images/icons/smile.gif[/img] Attached is a pic of the engine compartment I found.
I don't know about the Cummins, but Curt's right on the lack of power on the Nissan engines. I have an SD-33T, and I basically can't go above freeway speeds, and no way I can climb a hill at any decent speed unless it's a low grade and I've got a good running start (see my post about needing to fix the 4 ways [img]/wwwthreads_images/icons/smile.gif[/img]). Actually, this is kinda true of all inline 6 engines (gas or diesel); they ain't gonna rev as fast as a V-8. But great low-end torque, though. [img]/wwwthreads_images/icons/smile.gif[/img] My SD-33T can barely move my Scout at freeway speeds, but it can pull a 20' boat on the I-5 like the boat isn't even there. [img]/wwwthreads_images/icons/smile.gif[/img]
On fuel mileage, diesels inherently get better mileage than gasburners. I know some Ford guys with 6.9l's who say they get over 20mpg...and that's a V-8! And that's pulling a big heavy truck with lots of wind resistance. I'm sure that if someone dropped a 6.9l into a Scout, if it was geared right, they could probably get really good mileage (especially compared to a 345 or a 392) with good power.
I actually bought my Scout for the diesel (although the great off-road capability's cool, too [img]/wwwthreads_images/icons/laugh.gif[/img] ), and, other than the lack of power and that my body's basically falling off, I'm extremely happy with the truck. I've figured my average mileage as about 17 miles to the gallon, which is definitely not right, though; supposedly the SD-33T can do over 25mpg on a good day. I'm guessing my math was wrong (also maybe the consideration that I let the engine idle for about 5 minutes to warm up every day). From what I've heard, average mileage on the 6.9l's about 15 to 20 mpg. The Dodge Cummins, from what I've heard, gets between 20 and 25 mpg. I don't know about the new Powerstrokes or any GM diesels, though. Hope that helps some! Any more questions, please feel free to ask...you can also E-mail me if you so choose. Overall, IMHO, a diesel is a better buy...I owned two gasburners before I got my Scout, and I have no intentions of ever buying a gas engine again (except maybe a 426 Hemi [img]/wwwthreads_images/icons/laugh.gif[/img]).
1980 International-Harvester Scout II SD-33T