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Unread 11-20-2011, 02:56 AM   #1
kmm2736
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Diesel Conversion

I watched a movie called fuel made in 2009. It opened my eyes and got me thinking about diesel. I did some local research and discovered a local Bio diesel pumping station! I have been looking over threads about diesel conversions. It is allot of information to absorb in a day! But I am Dead set in converting my ZJ now! I'm going to start by collecting a engine, T-Case and a compatible transmission. Bellow is my list of possible candidates so far:

Engine - 3.9 4bt (out of a bread truck or something)

T-Case: NP231

Trans: A518 (dodge truck), Allison MD 3060 (truck), 68RFE or AS68RC (dodge)

I'm trying to choose based on performance/driveability considering it will be driven on and off road! Any input or suggestions would be great!

Thanks, Kyle


Last edited by kmm2736; 11-20-2011 at 06:25 AM..
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Unread 11-20-2011, 08:35 AM   #2
badbird17x
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Heard good things on the bt. Keep thinking though. In this current gas situation my diesel is parked, yes it gets great mileage, but it costs $1.25 more here. Also have to take in that everything you do to a diesel costs way more. I love my diesel but there is a reason all the manufacturers are selling a lot less of them and a lot more gassers.

If you do it make a build tread, as it will be cool when done. Hell maybe things will be different when it's finished

I like turtles
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Unread 11-20-2011, 08:54 AM   #3
Nimbo
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Why do a conversion, when Jeep made the diesel engines themselves? 2.5L TDI



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Unread 11-20-2011, 09:08 AM   #4
badbird17x
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Wish I could find one of those in the states

I like turtles
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Unread 11-20-2011, 10:16 AM   #5
moggie99
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Quote:
Originally Posted by badbird17x View Post
Wish I could find one of those in the states
It's a 4 cylinder VM turbo diesel - used in loads of Chrysler/Jeep products in Europe, including the Voyager/Caravan/Cherokee/Grand Cherokee. I'm not aware of it being used in any US market models.

http://en.wikipedia.org/wiki/List_of...ngines#425_OHV
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Unread 11-20-2011, 12:36 PM   #6
MN59ZJ
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Quote:
Originally Posted by moggie99
It's a 4 cylinder VM turbo diesel - used in loads of Chrysler/Jeep products in Europe, including the Voyager/Caravan/Cherokee/Grand Cherokee. I'm not aware of it being used in any US market models.

http://en.wikipedia.org/wiki/List_of...ngines#425_OHV
In the US, The KJ Liberty CRD had a 2.5l diesel 4 cylinder. I think there was a WK CRD as well, using a Daimler V6
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Unread 11-20-2011, 01:05 PM   #7
somebody5788
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My buddy is doing this to his Cherokee. Well it could be the Comanchee I don't really remember but either way it's a pretty identical process lol.
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Unread 11-20-2011, 02:17 PM   #8
ratmonkey
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remember, that 4cyl diesel is HEAVY, a lot heavier than the i6. it is also tall. you need around a 6" lift to fit it. or a few inches of lift and a 2wd beam axle.
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Unread 11-24-2011, 11:03 PM   #9
kmm2736
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Hey I did not really think of the weight too much. I really am excited to hear of these other possibilities of engines to find. Now I’m thinking 1.9L VW TDI engine, from 1999-2006 or a 2.8l crd or a Similar sized Diesel motor within my budget. The cost of this conversion is making me think twice on jumping right on the engine swap!

Thinking of deciding on a future diesel and building my zj with the right t case and trans and then swap engine in later.

HPA Motorsports has a complete conversion for tbi but only for the yj, tj, jk.
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Unread 11-24-2011, 11:10 PM   #10
thirdeye
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dannng that sounds super siiiiiiick! If you do it, be sure to post a link here so I can follow it!
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Unread 11-25-2011, 02:58 AM   #11
RTYauch301
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Quote:
Originally Posted by badbird17x View Post
Heard good things on the bt. Keep thinking though. In this current gas situation my diesel is parked, yes it gets great mileage, but it costs $1.25 more here. Also have to take in that everything you do to a diesel costs way more. I love my diesel but there is a reason all the manufacturers are selling a lot less of them and a lot more gassers.

If you do it make a build tread, as it will be cool when done. Hell maybe things will be different when it's finished

I like turtles
that's the same reason my dually is only a tow/emergency vehicle now
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Unread 11-25-2011, 07:22 AM   #12
badbird17x
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I had a couple tdi vws. They are great engines, though not a lot of power, and expensive to work on.
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94 jz, bruiser, la, cage,5.3 ls, 36 swampers 98 jz, the mutt, 3.5 iro, 33 swampers, avalanche conversion, 02 north face avalanche blacked out work truck, 06 rhino R1 engine, 4x4, Leeroy's custom paint, 04 escalade wifes truck 22s, 03 duramax 18s, completely blacked out, efilive by nick, wicked wicked truck, 39 chop chevy rod, aluminum 5.3 ls, 08 apex, 310hp mcx turbo, holz 162, completely black, CCM built.
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Unread 11-25-2011, 07:35 AM   #13
kmm2736
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Hey Bad Bird check this page out I found.

http://blogs.jpmagazine.com/6667601/...wap/index.html

"In stock form the VW TDI engine pumps out 100 horsepower and 180 lb-ft of torque, but is said to be easily cranked up to an impressive 165 horsepower and 280 lb-ft of torque with a simple power flash (The factory Jeep 2.5L puts out 123hp and 145 lb-ft). The 1.9L TDI weighs in at a svelte 265 pounds compared to the Jeep 2.5L at 325 pounds. It's 55 pounds lighter than the four cylinder! In the Jetta the 1.9L gets up to 47mpg, in a Jeep it will likely get slightly fewer mpgs because of the Jeeps added weight and increased wind resistance but it should easily hit the 30-40 mpg range with normal use"
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Unread 11-25-2011, 07:48 AM   #14
badbird17x
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Mine were in beetles. One I had a chip from over seas, strait pipe, it got 50mpg all the time. Problem I had was the timing belt picked up a rock on a gravel road, they are a conflicting engine, so I bought a $1800 head. Luckily I had the dealer do it because 3000 miles later it locked up on a long drive because the dealer didn't torque a line right. Their ins gave me $6000 for the car as that was what a new engine would cost. I bought another and loved it but now have too many kids for a beetle. If it can hook to an ax, and find a way to protect that timing belt, and you could find one under $3000. Then I would lean toward that. Could find a totaled beetle cheap then you would have everything besides the trans.
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94 jz, bruiser, la, cage,5.3 ls, 36 swampers 98 jz, the mutt, 3.5 iro, 33 swampers, avalanche conversion, 02 north face avalanche blacked out work truck, 06 rhino R1 engine, 4x4, Leeroy's custom paint, 04 escalade wifes truck 22s, 03 duramax 18s, completely blacked out, efilive by nick, wicked wicked truck, 39 chop chevy rod, aluminum 5.3 ls, 08 apex, 310hp mcx turbo, holz 162, completely black, CCM built.
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Unread 11-25-2011, 10:56 AM   #15
caligiuri87
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ratmonky is right. size is tricky. i wouldn't even start it to be honoust if u want a diesel get a jeep with an diesel. when i lived in holland alot of jeeps had diesels and land rovers as well.
in fact i KNOW that u can take an old land rover take the complete drive line and dump it in the jeep. ill look up what model my bud had when he did this but it is sweet. knowing that land rover could do about everything.
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