Do you have some sort of wiring diagram for what you've done int he jeep? I have a couple diagrams for the engine, but it would be nice to have one puttin' it in the jeep too since the hard part has already been done with yours haha!

My inline 5 has the 9-pin connector... I'd rig it for that if it were me I guess... Nice that you have options though.

 

Wow, this is weird !! This is the third time I reply to this message ! I came back the next day and my reply is gone !???
Kriesel, YES !! I have a wiring diagram for my motor. Lee Reiff over at Reiff Diesel hooked me up with the 50 pin harness, and the 03-07 Dodge potentiometer, and blew up the diagram from 8.5 inch by 11 inch to 24 inch by 36 inch !!
You can PM me or Email me, and I will get you my telephone # and tell ya everything I have done. Which is not much, at this point I still have not wired my "boost power" or my tach or the cruise control or my "wait to start or STOP engine" lights!! I have alot left to do !! I did use this to get the wires from the ECM safely thru the firewall. http://www.4wd.com/productdetails.aspx?partID=61194I am having soooo much fun cruising in this thing.

I forgot to mention one of the cables for the twin sticks crimp came undone and I contacted Northwest Fabworks and they are mailing out a replacement. No problem other than the 45 minutes to remove and 45 to reinstall the cable( very cramped quarters).

 

OK.... Things are starting to equalize with the fuel usage !! I am seeing an average fuel economy in the 22 mpg in the city (the same as my 2007Grand Cherokee with the Mercedes 3.0L common-rail and higher gears and smaller tires)!! I have not had a chance to get above 67 mph yet !! I have accidently spun the 35 inch tires in reverse and then realized it is not really that hard to do !! Mu-hahahaha .... I may need to make a video of this !!

I have also noticed that I am only able to use 14 gallons or less of my 21 gallon tank before I run completely out. I was thinking I should check this out although the engine acts up before it cuts out and I have realized on the fuel guage where it happens.

My laptop's SD card slot stopped workin making it difficult to get pictures into the flickr acct; so I will have to work on this !!

Here is a link to a video I shot today. Forgive me I only have two hands and steering and shifting take both so the camera/iphone is an after thought. I installed a boost gauge and "tried" to do a spirited dragstrip effort !! LOL Althought 0 to 5 to 67 in 35 seconds is not bad. I am pushing 10 lbs of boost in 2nd and 15 lbs in 3rd and 18 lbs in 4th and 19 lbs at in 5th at 67mph. You can get a somewhat feel of the noise level during upshifts as well.

http://www.youtube.com/watch?v=3FxSDxCBnPQ

 

You guys are amazing. Still wish I could do the diesel swap in my wife's YJ.

I can however do a diesel upgrade in my new to me car. I finally got my '65 Mercedes 190 Dc legal. Since I don't have to go through emissions, the sky is the limit for conversions (however budget, space and time all have limits).

I forgot who had the Mercedes diesel in their YJ for while (I think it was Hulkgreen), but I was curious if they still had the engine, and was it a 5 cylinder or four cylinder? Otherwise, I was considering the 2.3L Cummins.
The original engine still works, but even finding oil filters is getting challenging. Can't go too powerful or torque-y since I'm keeping the 4 speed column shift tranny. Will likely add an OD later.

Any info is appreciated. My apologies for hijacking the thread.

 

Just sent you a PM about wiring. After looking at different things on google, I found out the following if you want to wire a potentiometer from a dodge truck to a QSB engine: Make sure you have the right potentiometer... haha!

The 04.5-07 dodge has the same ECM as the QSB tier 2 and tier 3 engines (other than QSB3.3) (CM850).

The 08-10 (I think, maybe 08-09) has the same ECM (CM2150) as the QSB3.3 tier 3

The 10-present dodge truck has the same ECM as the tier4-interim engines (CM2250)

So, as long as you know which tier level your QSB engine is, you can get a dodge truck fuel pedal to mate to the QSB of your choice... I think...

 

Kreisel,

From what I understood the 03-07 Dodge Ram potentiometer is called Williams (this is what I have ) or the wiring diagram offers that you could use a Robert Shaw model .

The 6.7L Dodge and industrial engine uses the (CM850) and so does the QSB 4.5L and the Big Rigs using a Cummins C8.3L also uses the (CM850) ECM.

I do not know about the other engines you listed !

Maybe 95z28 can chime in on his ECM !?!?

 

My QSB3.3T has a CM2150 ECM. The CM2150 needs an APPS with IVS. The Williams 131973 sensor as both. The best price I found was a Kenworth dealer. Starting with 2004.5 the Dodge Cummins uses a pedal with 2 APPS and no IVS. I purchased a fuel pedal from a 2007 Dodge Cummins Ram based on a suggestion from a Cummins rep, but it isn't compatible with the CM2150. I purchased a 2000 Ford Superduty pedal that I will attempt to fit with a Williams sensor. I was given a defective sensor to use for mock-up.

Now if I could just get some time off work to work on my Jeep. It's the middle of April and I have ~ 330 hours OT for the year.

.

 

Just a quick update. Passed the 5 yr anniversary of the swap. Everything is still holding together. Added a little snow plow to it and it works great for plowing the long driveway in the winter. It's become more of a backup vehicle for us now, but it's still running great and hasn't given us any problems starting, driving, plowing, etc.

Glad to see all the other successful conversions on here as well.

 

Well, I have been driving my 4.5L HPCR Cummins Wrangler for over 8 months and I just finished the completion of the A/C install this past week. How sweet it is to have A/C in south Louisiana !! I got sick of sweating my *ss off !!

I talked to an Air Cond. compressor rebuilding plant that ONLY does Wholesale and NO retail sales. Well, the MGR was so impressed with my Jeep project that he made an exception and sold me the "Correct Hybrid" compressor. It is a cross of a Diesel Dodge Ram clutch and compressor crossed with the valve and manifold of a 1994 Jeep Wrangler and to beat it all, he had it on the shelf !

It is a Sanden Compressor and the Hybrid's part # is SD7H15. Although, I don't know where else this # may be used but it is a start if someone needs this A/C compressor.

 

Hello to all the groundbreaking innovators here! I stumbled across this forum and spent the last two evenings reading the entire thread. Holy COW! What an amazing bunch of information, trial and error, and enginuity! My hats off to you guys for making this work and building a thread that is understandable (usually, lol) yet full of technical stuff way above my understanding. I will likely become a small presence here as I try to have my million and one questions answered. I'm fairly new to Diesels so please bear (BEAR! Ahhh!!!) with me.
A lot of this may be directed at Hulk since I seem to be heading in the direction of his build, maybe? So let me start from step one. What I have.
I'm building a 1983 Jeep CJ-8 Scrambler that I bought following my last trip to Iraq last year. I'll be heading off to Afganistan in about a month and will use my free time to try and create a plan and save money for a diesel conversion. As it sits now my Jeep is an AMC 360, blown up T5, dana 300. The front axle is a wagoneer dana 44 with hysteer,ARB, and 4.10s. The rear is still the AMC 20 "lite" with a Warn full float kit, detroit, and also 4.10s. The suspention is spring over axle on Wagoneer springs up front and 2" unknown (and saggy) CJ springs out back. I'm currently in Germany and since tires and stuff are kinda pricey here I went with the more conservitive BFG KM2s in the 35" flavor. I could run 37s easy and maybe even clear a 39" tire if the rear springs were replaced.
So... with all that being said...and understanding that my aerodynamics are pretty much a joke, not to mention rolling resistance... How likely is it that I can put in a Cummins B3.3 (or any of the cummins motors) and make it acceptable in both MPGs and performance? I'm currently only managing to get about 12 MPG with the gasser and since this is a vehicle I plan to keep a LONG time...Help! Its likely to be removed from daily driver status and made into a camping and expedition vehicle for my entertainment. I have a RTT (roof top tent) and a bunch of other gear that mounts in or on it to allow me to go out for an extended period but carrying enough fuel is always an issue. It does moderate rock crawling but I have a different Jeep project for the more aggressive rock stuff (67 Commando). So I'm hoping you guys here can help lead me down the path to making this into a fun jeep I can afford to drive to the trail, play around a little, and still return home to drive to and from work in?
The first step is to begin to decide what engine I need to start looking for and go from there. I think if I'm going to do this I may as well kitty up for a new one but I don't want to get raked over the coals buying it. So any resources or pointers in getting one would be great! Stretching this little Army paycheck can be tuff but thats why getting deployed is less painful. I make a little more $, can save most of it, and since I'm single I can use it to pay for my Jeep disease!
As I mentioned, the 5 speed thats in the Jeep is DOA. I already have a very low milage Dodge NV4500 from a gas truck to put in but haven't gotten to ordering adapters yet. Thankfully!, since I'm now headed towards the dark side with this. The NV4500 will be mated to a Northwest Fabworks "BlackBox" to give me the ability to crawl better when needed (If I can EVER get them to return an email from me! ) and then the Dana 300 will get bolted on the back of all this after it gets refreshed.
I looked over my gear calculator and came up with RPMs in the 2066 range (at 70mph)in 5th gear running the 35s and the NVs .75 OD. Does this seem to low/high?
Ok... I can ramble on forever so I better stop. No need for a first post being an entire book unto itself. If anyone want to start throwing ideas at me, please feel free to do so! Maybe help me narrow down which diesel best fits my needs? Thanks everyone in advance!

 

Hello Jeepdreamer,

Let me start by saying that is a great looking scrambler !!!
I do have a similar setup and I am turning approx. 2100 at 65mph !! I'm not sure if I mentioned it earlier but I am considering dropping to 3.73 gears to lower my RPM's. Although, I have recently lowered my electric fans starting temp during the A/C install from 195 degrees to 180-185 it has improved my fuel economy from a regular 20-20.5 in the city to 22. So, I really can't complain about my fuel economy considering YOURS !! LOL !!

Shoot me a PM and I will share my phone # so you can ask me questions to your hearts content, and not overfill this thread with jibberish !!

 

Just a quick update!!

I got the ECM reprogrammed; my Jeep is now a BEAST !! It was rated at 110 HP and 360 TQ at 2000 rpm and now it is 130 HP and 460 TQ @ 2500 rpm. I was seeing elevated EGT's at 70 mph maintained for 30 minutes or more, but I removed the muffler and went with a straight pipe for exhaust and I also went from 2 1/2 inch intake piping to 3 inch piping. EGT's and engine temps are back in check.

I now have over 5000 miles on the conversion !!

 

Just an update !!
I reconnected the Air to Water Intercooler and added a radiator cap piece that Silicone Intakes offered, it seems to work well and it allowed me to remove the Mercedes radiator overflow bottle. The return on the Mercedes unit was small and I believe allowed it to get too warm. In addition I bought a new Intercooler water pump. It is the same unit used on the Mercedes supercharged vehicles that are using air to water intercoolers. It is offered thru Silicone Intakes for $125 with the wiring pigtail. I did see this on ebay for $110 but without the pigtail. I also had a silicone hose burst after melting because it was too close to the turbo. I rerouted the entire intake piping to prevent future problems and it still fits under the hood. (always a good thing)

Any way, now that the intake is no longer leaking boost pressure I am pushing 23 -24 lbs of boost ! (HOLD ON TIGHT!!) I am still getting between 20 and 22 mpg. It could improve but, I can't stop listening to the WHOOOSH sound of the turbo thru the 3" intake piping and air filter ! LOL

EDIT ** I also believe I am going to regear the axles to 3.73's for 2 reasons. I should obviously gain miles per gallon by lowering my RPM's (should push mpg to 25 or more) and because the Jeep is way quicker in the quarter mile than it needs to be !! I am guessing it could run the quarter in the low16's.
I have not mentioned before, but no matter how hard I get on the throttle, I am not blowing any smoke...... Not even screaming the tires all the way thru second gear. NONE !!

 

That's just freakin' awesome!!! Me likey!!

 

I have been away for a while and forgot about this build. Glad to see it is doing so well. I did a 3.9BT into a 98 TJ, 1 ton axles, 38.5" tires and kept the AX15/231 drivetrain. So far it is holding up well which is more than I can say for the front Dana 60 axle. I have broken two sets of lockouts, and a Detroit locker.