diesel in a YJ???? - Pirate4x4.Com : 4x4 and Off-Road Forum

C_I_A · 03-15-2004, 12:37 PM

so what would it take to put a diesel in a YJ? i did some searching and no one has posted about it. just curious if it's even possible. with rising gas prices, a diesel would be nice.

DieselCj · 03-15-2004, 12:43 PM

Definatly not possible. I wouldn't suggest it at all. I think it's actually kinda silly.

Yes, it is possible, it's not like swapping in a chevy 350, it isn't bolt up, and will require welding and modification.

Road Head · 03-15-2004, 01:10 PM

Apparently, there is a 4 cyl diesel version of the Liberty coming out next year. You might see if you could find any info from there. That doesnt really help you right now, but if you were thinking of doing it in a year or two, might be a possibility.

UP_ROKTOY · 03-15-2004, 01:46 PM

www.michiganjeepers.com screename deiselyj he may also post here, not sure.

Spike5421 · 03-15-2004, 01:46 PM

this subject has been talked about you should search harder. Also, from what i remember, it was concluded that a diesel would wieght too much to swap in and that if you found a small one you could forget about driving at speeds above 50. There are just better options for torque and horsepower. Just my .02

UP_ROKTOY · 03-15-2004, 01:49 PM

apparantly you didnt search either..... anyway here are various posts by dieselyj

http://www.pirate4x4.com/forum/searc...der=descending

1tonyj · 03-15-2004, 03:25 PM

THIS:

DieselCj · 03-15-2004, 03:32 PM

Wow you guys really nailed it.

I got my diesel engine transmission and transfer case for $700. It doesn't weight a ton, yes it does weight more than your stock engine. But it gives you power where you need it, at the bottom of the RPM's.

Speeds above 50? I can easily hit 65-70, and that is with 101hp, 33x12.5 BFG MT's, 4.10 gears, and a 1 to 1 output on the transmission. If I had an overdrive, higher speeds would be no problem. I just don't have the time or money do put in an overdrive.

It is not a swap that is out of the question. I think it's a great one, I can go places much easier than a lot of guys with gas since I just idle up with tons of torque.

If you want more information about diesels in SUV's check outBinder Bulletin

Just don't tell them that you are going to put anything in a jeep. They don't like jeeps at all.

nilla · 03-15-2004, 03:38 PM

i had a sd33t in my yj. hated it, pulled it out, and put a 383 stroker in it. all better now

DieselCj · 03-15-2004, 03:46 PM

Well I'm quite happy with mine. It's not going to win any drag races but it'll last forever and take whatever beating I can give it.

XJUSA · 03-15-2004, 04:29 PM

Would this not be a nice engine for a YJ ? Commins 5.9 TD

Enough torque, enough HP, enough fun !

yellowrover · 03-15-2004, 05:13 PM

Quote:

Originally posted by XJUSA
Would this not be a nice engine for a YJ ? Commins 5.9 TD

Enough torque, enough HP, enough fun !

And it is so big you would not be able to drive it. I have one in my 91 dodge and I have to replace the front springs every couple of years with only HWY driving.

Insayn · 03-15-2004, 05:32 PM

This is a local guy's YJ with a 5.9L CTD in it.

Insayn · 03-15-2004, 05:34 PM

Insayn · 03-15-2004, 05:35 PM

I should actually say it's a Dodge with a YJ tub on it.

hpi_jeep · 03-15-2004, 05:56 PM

that is pretty nice.

is the grill sticking out further because radiator mounting issues?

DieselCj · 03-15-2004, 06:26 PM

Pics of my SD-33T CJ-7

Here are a few pics of mine, I don't have much more right now.

yellowrover · 03-15-2004, 06:32 PM

Quote:

Originally posted by DieselCj
Pics of my SD-33T CJ-7

Here are a few pics of mine, I don't have much more right now.

What was the donor vehicle? What all was involved in the conversion?

DieselCj · 03-15-2004, 06:39 PM

This is the 2nd one I did, so I took the easy way out. The donor was an International Scout 1980. I took the whole drive train, engine, transmission, and transfer case and just slipped it into the jeep. Put in new drive shafts, motor mounts, and a custom skid plate, and other odds and ends.

The other jeep I did, I don't have any pics of is a 236 Perkins Diesel. That engine was out of a street sweeper, and I had to customise the bellhousing, hooked it up to an F-150 transmisson/transfer case. It was my first swap, and so it took a lot more work, and didn't turn out as well.

I have considered once I graduate college opening a shop in Delaware to do Diesel Jeep conversions. I think if I can get it started there will be a market for it.

Both jeeps get 20-25 mpg with 33" tires.

Insayn · 03-15-2004, 06:52 PM

Quote:

Originally posted by hpi_jeep
that is pretty nice.

is the grill sticking out further because radiator mounting issues?

I would imagine the YJ engine bay isn't quite big enough for a CTD, fan and radiator.

dieseljeep · 03-15-2004, 06:54 PM

The 4bt Cummins I put in my '91 YJ runs great. It won't run with a stroker v-8 but it'll put a 4.0 ho on the trailer, you could say it smokes 'em. Stock ratings are 105 hp, and 325 lb/ft torque. Its tweaked in a few ways to probably around 170 hp and 500 lb/ft torque. Decent power in a yj. It works great offroad with too much low end power, the stock axles didn't stand a chance. At idle if a tire didn't slip on a climb it would simply just snap the axleshaft like a twig. On the street the Jeep is way more fun to drive. The torque of the motor pushes the box shaped Jeep pretty well at any speed, I've had it around 95-100 mph with a little speed left to go if you felt like pushing it further. I was running a nv4500 from a '98 dodge. Worked fine but I just switched to a 727 auto. Haven't driven it with the auto yet.
As far as weight goes, the 4bt weighs just a little more than a straight 6 or v-8. I noticed no difference in front end ride height over the factory 4.0. I would definitly swap another, if not for the more power, but it gets well over 20 mpg also.

ibrocun · 03-15-2004, 08:08 PM

Quote:

Originally posted by DieselCj

I have considered once I graduate college opening a shop in Delaware to do Diesel Jeep conversions. I think if I can get it started there will be a market for it.

Both jeeps get 20-25 mpg with 33" tires.

You're right about the market for it, but I bet that market would be bigger on the west coast.

yellowrover · 03-16-2004, 12:07 PM

Quote:

Originally posted by dieseljeep
The 4bt Cummins I put in my '91 YJ runs great. It won't run with a stroker v-8 but it'll put a 4.0 ho on the trailer, you could say it smokes 'em. . I would definitly swap another, if not for the more power, but it gets well over 20 mpg also.

what do you get a 4bt out of, a skid loader?

dieseljeep · 03-16-2004, 03:43 PM

The 4bt came out of a Frito Lay truck. They are used in just about anything, trucks, tractors, hoes, you name it.

JJSBADYJ · 03-16-2004, 03:53 PM

a few years ago there was a YJ at the Run-A-Muck event held in July just outside of Truckee. I dont remember his name I just remember he stuffed a CTD or a CAAT under the hood. He had louvered the hood and also had a few scoops to try to keep it cool. He said he would get 20+ mpg at 70+ no problem. It is possible just a little more work.

JJ

03-15-2004, 12:37 PM	#1 (permalink)
C_I_A Registered User Join Date: Jan 2004 Member # 26356 Location: Hiawassee GA Posts: 82	diesel in a YJ???? so what would it take to put a diesel in a YJ? i did some searching and no one has posted about it. just curious if it's even possible. with rising gas prices, a diesel would be nice. __________________ [QUOTE=EndlessMtnFab] When you've been doing it as long as some of us have ... then you have the right to get cocky. Until then ... wipe mom's milk off your chin. [/QUOTE] 95 YJ <-- the build 87 YJ <-- the DD

03-15-2004, 12:43 PM	#2 (permalink)
DieselCj Registered User Join Date: Feb 2004 Member # 26890 Location: Delaware Posts: 58	Nope Definatly not possible. I wouldn't suggest it at all. I think it's actually kinda silly. Yes, it is possible, it's not like swapping in a chevy 350, it isn't bolt up, and will require welding and modification. __________________ 1985 CJ-7 SD-33T Nissan Diesel 1977 CJ-7 236 Perkins Diesel

03-15-2004, 01:46 PM	#4 (permalink)
UP_ROKTOY Registered User Join Date: Sep 2002 Member # 13582 Location: Fenton, MI Posts: 586	www.michiganjeepers.com screename deiselyj he may also post here, not sure. __________________ www.misfitoffroad.com

03-15-2004, 01:46 PM	#5 (permalink)
Spike5421 Registered User Join Date: Mar 2002 Member # 10411 Location: Oahu, Hawaii Posts: 165	this subject has been talked about you should search harder. Also, from what i remember, it was concluded that a diesel would wieght too much to swap in and that if you found a small one you could forget about driving at speeds above 50. There are just better options for torque and horsepower. Just my .02 __________________ 82 Cj7 (SOLD) '04 4wd Taco, S/C, Allpro 3.5", 4.88 gears, ARB bumper, Warn, rocker guards.

03-15-2004, 01:49 PM	#6 (permalink)
UP_ROKTOY Registered User Join Date: Sep 2002 Member # 13582 Location: Fenton, MI Posts: 586	apparantly you didnt search either..... anyway here are various posts by dieselyj http://www.pirate4x4.com/forum/searc...der=descending __________________ www.misfitoffroad.com

03-15-2004, 01:10 PM	#3 (permalink)
Road Head Registered User Join Date: Nov 2002 Member # 14731 Location: Nashville, TN Posts: 462	Apparently, there is a 4 cyl diesel version of the Liberty coming out next year. You might see if you could find any info from there. That doesnt really help you right now, but if you were thinking of doing it in a year or two, might be a possibility.

03-15-2004, 03:25 PM	#7 (permalink)
1tonyj Registered User Join Date: Jul 2002 Member # 12795 Location: Acworth, Ga Posts: 775	THIS: Attached Images __________________ [URL="http://www.geocities.com/onetonyj"]http://www.geocities.com/onetonyj[/URL]

03-15-2004, 03:32 PM	#8 (permalink)
DieselCj Registered User Join Date: Feb 2004 Member # 26890 Location: Delaware Posts: 58	Wow you guys really nailed it. I got my diesel engine transmission and transfer case for $700. It doesn't weight a ton, yes it does weight more than your stock engine. But it gives you power where you need it, at the bottom of the RPM's. Speeds above 50? I can easily hit 65-70, and that is with 101hp, 33x12.5 BFG MT's, 4.10 gears, and a 1 to 1 output on the transmission. If I had an overdrive, higher speeds would be no problem. I just don't have the time or money do put in an overdrive. It is not a swap that is out of the question. I think it's a great one, I can go places much easier than a lot of guys with gas since I just idle up with tons of torque. If you want more information about diesels in SUV's check outBinder Bulletin Just don't tell them that you are going to put anything in a jeep. They don't like jeeps at all. __________________ 1985 CJ-7 SD-33T Nissan Diesel 1977 CJ-7 236 Perkins Diesel

03-15-2004, 03:38 PM	#9 (permalink)
nilla Registered User Join Date: Dec 2001 Member # 9017 Location: indiana Posts: 328	i had a sd33t in my yj. hated it, pulled it out, and put a 383 stroker in it. all better now __________________ AKA "NEO" Team Branik Motorsports/Badlands #518 Spotter/Co-Driver for Brandon "Dino" Haynes in XRRA, KOH, TREC Series Thanks to our sponsors: Branik Motorsports,Badlands Offroad Park, Bulldog Winch, Greatlake Offroad, Fort Wayne Clutch, Metal Supermarkets, Superior Axle, and BFGoodrich

03-15-2004, 03:46 PM	#10 (permalink)
DieselCj Registered User Join Date: Feb 2004 Member # 26890 Location: Delaware Posts: 58	Well I'm quite happy with mine. It's not going to win any drag races but it'll last forever and take whatever beating I can give it. __________________ 1985 CJ-7 SD-33T Nissan Diesel 1977 CJ-7 236 Perkins Diesel

03-15-2004, 04:29 PM	#11 (permalink)
XJUSA No (.)(.) No (\|) Join Date: Apr 2002 Member # 11132 Location: If I could start again, a million miles away. Posts: 301 Blog Entries: 10	Would this not be a nice engine for a YJ ? Commins 5.9 TD Enough torque, enough HP, enough fun ! __________________ Last edited by XJUSA; 03-15-2004 at 04:30 PM.

03-15-2004, 05:32 PM	#13 (permalink)
Insayn Registered User Join Date: Jul 2001 Member # 5923 Location: Arlington, TX Posts: 914	This is a local guy's YJ with a 5.9L CTD in it. __________________ #@*?! Gravity! Powered by Adrenaline and Driven by Insanity

03-15-2004, 05:34 PM	#14 (permalink)
Insayn Registered User Join Date: Jul 2001 Member # 5923 Location: Arlington, TX Posts: 914	__________________ #@*?! Gravity! Powered by Adrenaline and Driven by Insanity

03-15-2004, 05:35 PM	#15 (permalink)
Insayn Registered User Join Date: Jul 2001 Member # 5923 Location: Arlington, TX Posts: 914	I should actually say it's a Dodge with a YJ tub on it. __________________ #@*?! Gravity! Powered by Adrenaline and Driven by Insanity

03-15-2004, 05:56 PM	#16 (permalink)
hpi_jeep Wheeler Join Date: Mar 2003 Member # 17596 Location: Lake of the ozarks missouri Posts: 323	that is pretty nice. is the grill sticking out further because radiator mounting issues?

03-15-2004, 06:26 PM	#17 (permalink)
DieselCj Registered User Join Date: Feb 2004 Member # 26890 Location: Delaware Posts: 58	Pictures Pics of my SD-33T CJ-7 Here are a few pics of mine, I don't have much more right now. __________________ 1985 CJ-7 SD-33T Nissan Diesel 1977 CJ-7 236 Perkins Diesel

03-15-2004, 06:39 PM	#19 (permalink)
DieselCj Registered User Join Date: Feb 2004 Member # 26890 Location: Delaware Posts: 58	This is the 2nd one I did, so I took the easy way out. The donor was an International Scout 1980. I took the whole drive train, engine, transmission, and transfer case and just slipped it into the jeep. Put in new drive shafts, motor mounts, and a custom skid plate, and other odds and ends. The other jeep I did, I don't have any pics of is a 236 Perkins Diesel. That engine was out of a street sweeper, and I had to customise the bellhousing, hooked it up to an F-150 transmisson/transfer case. It was my first swap, and so it took a lot more work, and didn't turn out as well. I have considered once I graduate college opening a shop in Delaware to do Diesel Jeep conversions. I think if I can get it started there will be a market for it. Both jeeps get 20-25 mpg with 33" tires. __________________ 1985 CJ-7 SD-33T Nissan Diesel 1977 CJ-7 236 Perkins Diesel

03-15-2004, 06:54 PM	#21 (permalink)
dieseljeep Registered User Join Date: Feb 2003 Member # 17293 Location: SW Ohio Posts: 18	The 4bt Cummins I put in my '91 YJ runs great. It won't run with a stroker v-8 but it'll put a 4.0 ho on the trailer, you could say it smokes 'em. Stock ratings are 105 hp, and 325 lb/ft torque. Its tweaked in a few ways to probably around 170 hp and 500 lb/ft torque. Decent power in a yj. It works great offroad with too much low end power, the stock axles didn't stand a chance. At idle if a tire didn't slip on a climb it would simply just snap the axleshaft like a twig. On the street the Jeep is way more fun to drive. The torque of the motor pushes the box shaped Jeep pretty well at any speed, I've had it around 95-100 mph with a little speed left to go if you felt like pushing it further. I was running a nv4500 from a '98 dodge. Worked fine but I just switched to a 727 auto. Haven't driven it with the auto yet. As far as weight goes, the 4bt weighs just a little more than a straight 6 or v-8. I noticed no difference in front end ride height over the factory 4.0. I would definitly swap another, if not for the more power, but it gets well over 20 mpg also. __________________ Tow unit:'91 Dodge 250 4X4,6bt Cummins Trail unit:'91 Jeep YJ,4bt Cummins

03-16-2004, 03:43 PM	#24 (permalink)
dieseljeep Registered User Join Date: Feb 2003 Member # 17293 Location: SW Ohio Posts: 18	The 4bt came out of a Frito Lay truck. They are used in just about anything, trucks, tractors, hoes, you name it. __________________ Tow unit:'91 Dodge 250 4X4,6bt Cummins Trail unit:'91 Jeep YJ,4bt Cummins

03-16-2004, 03:53 PM	#25 (permalink)
JJSBADYJ Registered User Join Date: Oct 2002 Member # 14155 Location: Modesto, CA Posts: 1,453	a few years ago there was a YJ at the Run-A-Muck event held in July just outside of Truckee. I dont remember his name I just remember he stuffed a CTD or a CAAT under the hood. He had louvered the hood and also had a few scoops to try to keep it cool. He said he would get 20+ mpg at 70+ no problem. It is possible just a little more work. JJ

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