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Unread 06-23-2013, 03:08 PM   #16
jeepmutiny
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A guy I talked to on FB did such a swap. He basically used a Dodge 1 ton PU for parts with an NV4500 and 60 axles. Turned out very nice but it would be cheaper to get a parts vehicle than to piece it together......Jon

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Unread 06-24-2013, 06:55 AM   #17
geiman
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I'd love to see how the 1.9 TDI would be in person. I've done a good bit of reading on the 4bt and similar and the one big complaint is the noise and vibrations. I don't mind a little extra noise, but there is no way I could deal with a DD that was noisy and vibrated enough to drive me crazy.
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Unread 06-24-2013, 07:24 AM   #18
RnEmOvr
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The 4BT is a very heavy engine. The MPG will be in the mid to upper 20s due to the light weight of the Jeep. Some guys are now doing the smaller tractor motors (3 cyl JD or Kubota) and getting good power from them as well.
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Unread 06-24-2013, 08:29 AM   #19
Dueces
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Quote:
Originally Posted by bondosgto View Post
With a diesel you want tall gears. Not the ungodly low 6.38 or what everit is in rockwells.
you dont have to have that ratio, you can get 4.90:1 here http://www.ouversonusa.com/rockwell_490_gearset.php

although that gear set costs as much as one axle.
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Unread 06-24-2013, 08:56 AM   #20
clintrivera
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Quote:
Originally Posted by 99_TJ_Wyoming View Post
I am seriously loving that TDI site, a little spendy but the 1.9 TDI is an awesome and very reliable little power plant.
I'm not sure why anyone gets excited about the 1.9 TDI. There's a guy on Pirate that swapped one into a YJ to get "around the same power" as the stock 4.0. He has had massive issues with it as well (on his 2nd motor). The guys he wheels with makes him ride in back because of the smell. Where I am, the 1.9 TDI's go for stupid money. Sure, you can boost the power, but there goes your reliability.
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Unread 06-24-2013, 11:25 AM   #21
bondosgto
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Quote:
Originally Posted by Dueces View Post
you dont have to have that ratio, you can get 4.90:1 here http://www.ouversonusa.com/rockwell_490_gearset.php

although that gear set costs as much as one axle.
And a top speed of 30 if you want any decent mog.
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Unread 06-25-2013, 06:30 AM   #22
youngjeeper11
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To each his own....

I have swapped a TBI chevy 350 into a YJ, a 5.3 into a YJ, and an all aluminum 5.3 into a JK, but I would take my 4BT YJ over any of them in a heartbeat.

in my opinion, the TDI is non-sense, why go through all that work/money to get the same performance, and it is not like TDI Jettas have ever been anything to write home about as far as performance/mileage/reliability.

Yes, it is noisy, vibrations are not bad though IMHO, but I am a diesel guy, I love noise, smoke and the feel of a turbo spooling under my foot.

Also, I dont understand why everyone thinks the 4BT is so much more complicated and hard to adapt, I wish I could punch this myth in the face!

This engine literally requires 1 wire to run, fuel on, fuel off, and you are done.

Also, I do not understand why everyone messes with all kinds of adapters, transmissions, clutches, blah blah.... get yourself a wrecked dodge ram 2500cummins w an NV4500, the flywheel, clutch, pressure plate, throwout bearing, pilot bearing, bellhousing, trans everything bolts right to the 4BT, I even used the dodge ram clutch master cylinder.

I will agree with the fact that the swap will usually cost more than a SBC 350 swap, mainy due to the cost of the engine, but while doing your research (and do tons of research), trust the opinons of people who have actually done this swap because there are SOOOO many myths around it that it drives me crazy.

Check out my build

http://www.jeepforum.com/forum/f12/4...-pics-1275843/
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Jeep 1:Used to have a 93 YJ 2.5l- 3.5" Black Diamond, Chevy TBI 5.7l V8, SM 465 4 speed, 8.8 rear( 4.10, L/S), rhinoline, Mile Marker 9000, NP 231, Had to sell it due to college
Jeep 2: 89/91 YJ, 4BT Cummins, NV4500, NP 231, Old Man Emu 2.5" suspension lift, 1" body lift.....Runs and drives, but very much a project
Interned at Novak Conversions 2 summers ago

Ask me about my 4BT Cummins Motor Mounts!!
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Unread 06-25-2013, 08:33 AM   #23
RnEmOvr
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Quote:
Originally Posted by youngjeeper11 View Post
To each his own....

I have swapped a TBI chevy 350 into a YJ, a 5.3 into a YJ, and an all aluminum 5.3 into a JK, but I would take my 4BT YJ over any of them in a heartbeat.

in my opinion, the TDI is non-sense, why go through all that work/money to get the same performance, and it is not like TDI Jettas have ever been anything to write home about as far as performance/mileage/reliability.

Yes, it is noisy, vibrations are not bad though IMHO, but I am a diesel guy, I love noise, smoke and the feel of a turbo spooling under my foot.

Also, I dont understand why everyone thinks the 4BT is so much more complicated and hard to adapt, I wish I could punch this myth in the face!

This engine literally requires 1 wire to run, fuel on, fuel off, and you are done.

Also, I do not understand why everyone messes with all kinds of adapters, transmissions, clutches, blah blah.... get yourself a wrecked dodge ram 2500cummins w an NV4500, the flywheel, clutch, pressure plate, throwout bearing, pilot bearing, bellhousing, trans everything bolts right to the 4BT, I even used the dodge ram clutch master cylinder.

I will agree with the fact that the swap will usually cost more than a SBC 350 swap, mainy due to the cost of the engine, but while doing your research (and do tons of research), trust the opinons of people who have actually done this swap because there are SOOOO many myths around it that it drives me crazy.

Check out my build

http://www.jeepforum.com/forum/f12/4...-pics-1275843/
Agreed with this. Like I said earlier biggest issue is the weight.
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Unread 06-25-2013, 08:34 AM   #24
clintrivera
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Not only that, fitting a NV4500 in a TJ isn't a very fun task.
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Unread 06-25-2013, 10:07 AM   #25
DirtRider1357
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Has anyone seen a write up for doing a 4bt/nv4500 swap in an lj?
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Unread 06-25-2013, 10:49 AM   #26
jeepn4life92
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Quote:
Originally Posted by youngjeeper11 View Post
To each his own....

I have swapped a TBI chevy 350 into a YJ, a 5.3 into a YJ, and an all aluminum 5.3 into a JK, but I would take my 4BT YJ over any of them in a heartbeat.

in my opinion, the TDI is non-sense, why go through all that work/money to get the same performance, and it is not like TDI Jettas have ever been anything to write home about as far as performance/mileage/reliability.

Yes, it is noisy, vibrations are not bad though IMHO, but I am a diesel guy, I love noise, smoke and the feel of a turbo spooling under my foot.

Also, I dont understand why everyone thinks the 4BT is so much more complicated and hard to adapt, I wish I could punch this myth in the face!

This engine literally requires 1 wire to run, fuel on, fuel off, and you are done.

Also, I do not understand why everyone messes with all kinds of adapters, transmissions, clutches, blah blah.... get yourself a wrecked dodge ram 2500cummins w an NV4500, the flywheel, clutch, pressure plate, throwout bearing, pilot bearing, bellhousing, trans everything bolts right to the 4BT, I even used the dodge ram clutch master cylinder.

I will agree with the fact that the swap will usually cost more than a SBC 350 swap, mainy due to the cost of the engine, but while doing your research (and do tons of research), trust the opinons of people who have actually done this swap because there are SOOOO many myths around it that it drives me crazy.

Check out my build

http://www.jeepforum.com/forum/f12/4...-pics-1275843/

This would make sense if all those parts are readily available. But finding a 4bt around me is very diffucult....anything with an nv4500 charges a premium price because of the strength and reliability of it, and they're big transmissions so a wheelbase stretch or a small lift are required to make it work which adds extra work on top of the cost issue of finding an engine and transmission. The vw tdi get amazing mileage, my mom had an early vw turbo diesel beatle and it got 45 mpg and the engine was realiable as hell compared to the 1001 stupid other issues with the car. They are everywhere in my area and the link posted earlier makes it possible to re-use the rest of the parts off your own jeep....
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Unread 06-25-2013, 10:51 AM   #27
sduncan
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TJ or LJ makes no difference. See the link below.

http://www.vnutz.com/articles/Cummin...sel_Conversion


I guess I'm weird...I just can't see the benefit of an 800+lb motor hanging off the front of a TJ/LJ.....I'll take my V8 anyday...
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Unread 06-25-2013, 11:09 AM   #28
youngjeeper11
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Quote:
Originally Posted by jeepn4life92 View Post
This would make sense if all those parts are readily available. But finding a 4bt around me is very diffucult....anything with an nv4500 charges a premium price because of the strength and reliability of it, and they're big transmissions so a wheelbase stretch or a small lift are required to make it work which adds extra work on top of the cost issue of finding an engine and transmission. The vw tdi get amazing mileage, my mom had an early vw turbo diesel beatle and it got 45 mpg and the engine was realiable as hell compared to the 1001 stupid other issues with the car. They are everywhere in my area and the link posted earlier makes it possible to re-use the rest of the parts off your own jeep....
Again, killing me with the assumtions/myths, the NV 4500 is not all that long, I did not have to stretch my wheebase, actually my transfer case ended up so close to the stock position that I was able to use the front driveshaft untouched......

Also, many bread truck 4BTs came mated to Chevy SM465s, which are also great tranmissions.


I fit the trans w a $100 body lift, so ok, you are correct there, but it could be done without a body lift, it was just the easiest way in my eyes.

I agree the 4BT is expensive/hard to find/heavy, there is no doubt in any of that, but the performace is way beyond a TDI.

That said, if you want to go through a ton of work and money to put a TDI in to get good mileage, and just to say you have a diesel Jeep, to each his own.

if you want to go through a ton of work, and more money to put a 4BT in to get good mileage, and have a torque monster of an engine, to each his own.

I am just saying the only reason I ever consider an engine swap is to gain more power than I will ever need, because it is more fun.
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Jeep 1:Used to have a 93 YJ 2.5l- 3.5" Black Diamond, Chevy TBI 5.7l V8, SM 465 4 speed, 8.8 rear( 4.10, L/S), rhinoline, Mile Marker 9000, NP 231, Had to sell it due to college
Jeep 2: 89/91 YJ, 4BT Cummins, NV4500, NP 231, Old Man Emu 2.5" suspension lift, 1" body lift.....Runs and drives, but very much a project
Interned at Novak Conversions 2 summers ago

Ask me about my 4BT Cummins Motor Mounts!!
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Unread 06-25-2013, 12:19 PM   #29
freeskier93
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Quote:
Originally Posted by youngjeeper11 View Post
Again, killing me with the assumtions/myths, the NV 4500 is not all that long, I did not have to stretch my wheebase, actually my transfer case ended up so close to the stock position that I was able to use the front driveshaft untouched......

Also, many bread truck 4BTs came mated to Chevy SM465s, which are also great tranmissions.


I fit the trans w a $100 body lift, so ok, you are correct there, but it could be done without a body lift, it was just the easiest way in my eyes.

I agree the 4BT is expensive/hard to find/heavy, there is no doubt in any of that, but the performace is way beyond a TDI.

That said, if you want to go through a ton of work and money to put a TDI in to get good mileage, and just to say you have a diesel Jeep, to each his own.
I think you're making just as many assumptions about the TDI swap that people are making about the 4bt swap...

Quote:
if you want to go through a ton of work, and more money to put a 4BT in to get good mileage, and have a torque monster of an engine, to each his own.

I am just saying the only reason I ever consider an engine swap is to gain more power than I will ever need, because it is more fun.
This is where you'll find the differences, as crazy as it sounds, not everyone wants a power monster that can do 0-60 sub 5 seconds. Sure it sounds cool, and is probably fun, but I can find coolness in other things.

The TDI swap doesn't seem all that expensive to me, once you add up the cost of the HPA components, it's going to come down to whether or not you can find a good deal on an engine. I don't think it's unreasonable to think you could do the TDI swap using the HPA stuff with the intercooler upgrade and tune, for 5-6k. For that you have a motor that will do anything the 4.0 could do but better, lighter than the 2.5L (people are after all willing to spend lots more money for aluminum armor to save weight, why can't the same be said for an engine?), and better gas milage (which does nothing but bring the long term cost of the swap down).

I've considered a lot of options for when my 4.0 dies or I just have the money to do something else. Now that it looks like HPA is selling their components separately and not charging the ridiculous 15k or so for everything and an engine, I would seriously consider this swap.
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Unread 06-25-2013, 12:40 PM   #30
youngjeeper11
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Quote:
Originally Posted by freeskier93 View Post
This is where you'll find the differences, as crazy as it sounds, not everyone wants a power monster that can do 0-60 sub 5 seconds. Sure it sounds cool, and is probably fun, but I can find coolness in other things.
Point taken, and maybe I am making assumptions about a TDI, I am just biased I supposed haha.

Exactly, to each his own, for me, all I ever wanted in my YJ was to slam gears, go fast, and tear up trails, but a lot of that is because I am still young and dumb haha
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Jeep 1:Used to have a 93 YJ 2.5l- 3.5" Black Diamond, Chevy TBI 5.7l V8, SM 465 4 speed, 8.8 rear( 4.10, L/S), rhinoline, Mile Marker 9000, NP 231, Had to sell it due to college
Jeep 2: 89/91 YJ, 4BT Cummins, NV4500, NP 231, Old Man Emu 2.5" suspension lift, 1" body lift.....Runs and drives, but very much a project
Interned at Novak Conversions 2 summers ago

Ask me about my 4BT Cummins Motor Mounts!!
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