Thanks for the transparency and I appreciate the detail. Not only is the AW4 inexpensive, it is bullet proof behind a 4.0L........providing you keep it cool. I had one in my 1998 Cherokee that I installed a large aftermarket tranny cooler. I like that the AW4 has a drain plug in the oil pan. At 50k miles, I dropped the pan and changed the fluid and filter. Afterward, I would drain the pan every time I changed engine oil (every 6k miles) and refill it with 2-1/2 quarts fresh fluid. I used Mobil Dexron/Mercon III (non-synthetic). I sold that Jeep with 296k miles in 2014. Last I heard (about a year ago), it was still running the same transmission. As an FYI, the plugs are softer than the pan. I replaced the plug about 4 times in 240,000 miles. They are probably still available from Jeep.
I'm sorry I haven't responded to this sooner. Everything you said about the AW4 is correct and I still really believe that going with the AW4 with a .75 overdrive would work, but I also think the 6r80 I'm going to will end up being a better transmission for the Kubota V2403 engine as well.
Torque convert lock up is something to consider as well. When it is locking up and such. Not locking up would nuclear meltdown the Trans in overdrive. Would be cool to lock it up on those steep decents you mention when using the engine braking
@@RustyAutoholicGuy My other 10% would be picking the correct size Turbo for V2203, Did V2203 come in anything else besides reefer trailers, can Kubota Swapper make adapters for any transmissions, and lastly fuel mileage, but I don't think you can answer that yet since you are still testing and tuning. Thanks in advance for any help on those questions!
@@DuddiesAdventure so KubotaSwappers can make an adapter for any transmission almost, I got him to make an adapter for a 6r80 6-speed Ford automatic transmission for my next build. The 03 series engine came in tractors, generators, and marine applications. The only tank I have tracked partially I got an estimated 25mpg, but I was running less boost and no intercooler. I'm trying to get my TJ to 30mpg highway is the goal.
KubotaSwappers closed shop a while ago, he ran into issues getting materials to make everything. I've still got the complete Kubota engine with turbo, adapter, accessory drive if you need a complete setup.
If that's the case I may need to put hydroboost on my mazda. Ken has a kit to use a mazda transmission from a b2600 with the mazda g6 engine. I have a few things that's taking priority right now. I'll get it there someday.
I have a Audi with that k03 on it and I can for 100 percent say that 25 outta that turbo is a bad idea it's way out of its efficiency range and is making a huge amount of heat the max I would have seen run and this is at the top of efficiency is about 18 psi unless you are running some kind of injection like water meth or something Now that said this is a great build and I plan on doing one but if I was gonna run anymore boost that the 15 psi I would swap to a k04
@@RustyAutoholicGuy effective charge cooling is a MUST! part of it is keeping the compressor within it's efficiency island along with an effective after cooler. when compounding I'd argue an inter stage water to air unit is called for.
@@2000freefuel yup that makes sense and I'm already running a water to air intercooler already, not sure I have room for a second setup. Honestly I think switching from my AW4 4-speed automatic to the 6r80 6-speed automatic is going to resolve solve issues I've been facing.
Consider splitting that turbo's load up? @1800 (2150 dip) will be flirting with under boost under load. Compounds? Like (ish) K03 secondary over S300G atmospheric? Boomdiggity.😎
I'd go manual transmission Chryslers automatics suck Why would u want a higher stall torque converter for a lower reving diesel.....they make more power at low speed A np231 chain drive t case......another weak link
I have a 1959 willys FC 150 and a Kubota V2003 out of a tool cat. i actually have the whole tool cat. The wheelbase is extremely short 90 inches It has a Ford 9"rear end and I am planning a Dana 44 solid axle front end. I am trying to figure out what transmission and transfer case to put in this creature. Can you help?
What kind of a driveshaft are you using with the transmission doubler and transfer case? If I add a doubler to my TJ I'd have to bolt the axle to the transfer case!
I had moved my engine forward 6.5" inches so I was able to make up the length of the 7" doubler with also installing a super short SYE on my NP231 so my rear drive shaft was around 14.25" inches long.
Honestly I don't know. I know manual would solve some issues, and I do know how to drive a manual, did so for years, but for the style of wheeling I enjoy, automatic is the way to go. That being said if this last ditch effort with the AW4 doesn't work, I'll be swapping in a NV3550 5-speed manual since it came with the wrecked TJ Rubicon I just purchased.
So the motor mounts look like stock Wrangler mounts but I got bushing from Brown Dog Offroad here: browndogindustries.com/BU2500K2-Rubber-Bushing-Motor-Mount-Rebuild-Kit.aspx I made the motor mounts myself to lower the engine and got bushings from them that would fit my application.
How much $$$ have you spent on adapters that you never used? The setup you had with the AW4 would have been fine if you just went to the junkyard and got some 4.10 axles.
So the original adapter was like $725 ish, it's been two years so I can't remember. Going to 4.10 axles is possible however because of the Right Hand Drive all the axles have their brackets installed in a mirror location, so I would have to cut and re-weld all the axles, again doable but not a simple bolt in swap either. Ultimately I went with the 6r80 6-speed automatic because I had that adapter already for another project that is more than likely changing because of some length issues that I've been running into with the design.
I did not realize yours was IDI (indirect injection). Do you have any idea if you could run waste motor oil or waste vegetable oil in it? Also I'm a little color blind and I thought for sure your Jeep was fire red like mine lol.
@@RustyAutoholicGuy I definitely understand that. I was just curious if that was an option on those motors. I know the tolerance on the injectors is a lot tighter on the newer engines
Ran, veggie oil and home made bio, had a bad infection fuel tank looked like a sod farm, couple quarts 10% ethanol fuel fixed the infection Over a year later the fuel system pluged up. Found the veggie oil if not separated has a wax type buildup looks like gasket sealer took out the injector system pump and injectors. My conclusion saving pennies cost about $1000 Not belly ackin just sayin alternative fuels work as long as you don't skimp on the process. I'm back to pump fuel, it just works
@@jeffscruton6327 absolutely! Definitely don't cut corners on alt fuels. I think if you were looking for a safer alternative fuel you should look into waste motor oil. I believe it takes a lot less work to make it safe to run in your vehicle.
@@kyfiss9176 another alt is hydraulic oil, have a friend gets the used or non used oil from an OEM does upgrades and doesnt reuse the oil another option is machine shops change oil on a scedule
I've always been interested in the CJ-3B Jeeps from Mitsubishi, I've seen a few for sale here in the US, I believe they are around 85hp and I don't know the torque of the top of my head, I would guess under 200ft/lbs, I know they get good fuel economy as well. Without having driven one or worked on one I can't say anything definitive however I will say having a diesel engine from the mid 2000s vs a diesel engine from the 70s/80s I imagine this Kubota is quieter, cleaner and produces more torque than the engine that comes in the Jeeps from Mitsubishi.
@@RustyAutoholicGuy yes, the naturally aspirated ones ended up with about 85bhp and 16kgm. The direct-injection turbo version bumped that to 96bhp and 21kgm. I put some info together on those here: th-cam.com/video/6CivSVYOhko/w-d-xo.html I’ll look into Kubota availability for an eventual replacement if my 4DR6 ever dies! I’d be more likely to find a marinized engine here. Was the direct injection unit available in marine trim?
@@LesSharp I don't know honestly about the marine trim. I will also tell you mine is IDI not DI, which means I'm down on power but I can run bio-diesel which is a bonus, there are a few places to get it which cost less. I'll check out your video tonight!
Awesome video man! Your channel is going to be a resource for this sort of project for years to come. :)
Thank you so much, that was one of my.goals when I set out to document this build!
I was researching kuboto diesel, thanks.
Glad it was helpful!
Doubling boost pressure won't double horsepower. Horsepower is what moves a vehicle. Gearing controls how that power is made available.
That's actually pretty beautiful. What a mean little rig!
Thanks for the transparency and I appreciate the detail.
Not only is the AW4 inexpensive, it is bullet proof behind a 4.0L........providing you keep it cool. I had one in my 1998 Cherokee that I installed a large aftermarket tranny cooler. I like that the AW4 has a drain plug in the oil pan. At 50k miles, I dropped the pan and changed the fluid and filter. Afterward, I would drain the pan every time I changed engine oil (every 6k miles) and refill it with 2-1/2 quarts fresh fluid. I used Mobil Dexron/Mercon III (non-synthetic). I sold that Jeep with 296k miles in 2014. Last I heard (about a year ago), it was still running the same transmission. As an FYI, the plugs are softer than the pan. I replaced the plug about 4 times in 240,000 miles. They are probably still available from Jeep.
I'm sorry I haven't responded to this sooner. Everything you said about the AW4 is correct and I still really believe that going with the AW4 with a .75 overdrive would work, but I also think the 6r80 I'm going to will end up being a better transmission for the Kubota V2403 engine as well.
Thanks for the commentary, I was really wondering about driveline angles and added complexity with that doubler!
Glad it was helpful! Yeah the doubler, added so much complexity that I didn't anticipate.
Torque convert lock up is something to consider as well. When it is locking up and such. Not locking up would nuclear meltdown the Trans in overdrive. Would be cool to lock it up on those steep decents you mention when using the engine braking
Cool video bud. Nice job
Thanks 👍
Awesome episode! Answered 90% of my questions! Thank you!
You're welcome Duddie. Out of curiosity, what is the other 10% of questions that you have?
@@RustyAutoholicGuy My other 10% would be picking the correct size Turbo for V2203, Did V2203 come in anything else besides reefer trailers, can Kubota Swapper make adapters for any transmissions, and lastly fuel mileage, but I don't think you can answer that yet since you are still testing and tuning. Thanks in advance for any help on those questions!
@@DuddiesAdventure so KubotaSwappers can make an adapter for any transmission almost, I got him to make an adapter for a 6r80 6-speed Ford automatic transmission for my next build. The 03 series engine came in tractors, generators, and marine applications. The only tank I have tracked partially I got an estimated 25mpg, but I was running less boost and no intercooler. I'm trying to get my TJ to 30mpg highway is the goal.
How is it adapted to the trasnmission?
How do you bolt up the AW4 to the kabota? Have you got a adapter?
I would love to swap one with a 5 speed into something inappropriate!🤣
What type of hydroboost set up did you end up using?
What bell housing adapter do you need for the ax15?
KubotaSwappers closed shop a while ago, he ran into issues getting materials to make everything. I've still got the complete Kubota engine with turbo, adapter, accessory drive if you need a complete setup.
If that's the case I may need to put hydroboost on my mazda. Ken has a kit to use a mazda transmission from a b2600 with the mazda g6 engine. I have a few things that's taking priority right now. I'll get it there someday.
I really would recommend, I'm seriously debating putting it on my LJ Rubicon right now just to have the better braking force.
I have a Audi with that k03 on it and I can for 100 percent say that 25 outta that turbo is a bad idea it's way out of its efficiency range and is making a huge amount of heat the max I would have seen run and this is at the top of efficiency is about 18 psi unless you are running some kind of injection like water meth or something
Now that said this is a great build and I plan on doing one but if I was gonna run anymore boost that the 15 psi I would swap to a k04
mountainI've wondered now much a compound turbocharger would help on mountin passes.
I'm beginning to wonder that as well, but I've already fought EGTs and temperatures, I wonder how much more those would become an issue?
@@RustyAutoholicGuy effective charge cooling is a MUST! part of it is keeping the compressor within it's efficiency island along with an effective after cooler. when compounding I'd argue an inter stage water to air unit is called for.
@@2000freefuel yup that makes sense and I'm already running a water to air intercooler already, not sure I have room for a second setup. Honestly I think switching from my AW4 4-speed automatic to the 6r80 6-speed automatic is going to resolve solve issues I've been facing.
@@RustyAutoholicGuy I'm still looking for information on the joint venture FORD/GM 10 speed automatics.
If looking for modifications and upgrades for the ax for look at the a650e in the Lexus and supras the a340e in the supra and tacomas
Consider splitting that turbo's load up? @1800 (2150 dip) will be flirting with under boost under load.
Compounds?
Like (ish) K03 secondary over S300G atmospheric?
Boomdiggity.😎
Do you have a drawing, dimensions, etc for the alternator bracket?
I plan on doing this swap to a xj would you able to possibly give me a run down of the parts I need ? I have the right
transmission
Hey Blake can you email me, my email address is RustyAutoholicGuy@gmail.com, that will be easier than trying to do this over comments! Thanks
@@RustyAutoholicGuy I emailed you bud
I'd go manual transmission
Chryslers automatics suck
Why would u want a higher stall torque converter for a lower reving diesel.....they make more power at low speed
A np231 chain drive t case......another weak link
I have a 1959 willys FC 150 and a Kubota V2003 out of a tool cat. i actually have the whole tool cat. The wheelbase is extremely short 90 inches It has a Ford 9"rear end and I am planning a Dana 44 solid axle front end. I am trying to figure out what transmission and transfer case to put in this creature. Can you help?
For power brakes, we now have the Tesla/Toyota electric power boosters.
What kind of a driveshaft are you using with the transmission doubler and transfer case? If I add a doubler to my TJ I'd have to bolt the axle to the transfer case!
I had moved my engine forward 6.5" inches so I was able to make up the length of the 7" doubler with also installing a super short SYE on my NP231 so my rear drive shaft was around 14.25" inches long.
Next question how many different diesels you gonna throw in this thing? 😆 Seen some of your tdi videos good stuff, why not use a manual trans?
Honestly I don't know. I know manual would solve some issues, and I do know how to drive a manual, did so for years, but for the style of wheeling I enjoy, automatic is the way to go. That being said if this last ditch effort with the AW4 doesn't work, I'll be swapping in a NV3550 5-speed manual since it came with the wrecked TJ Rubicon I just purchased.
Where did you get that new Heavy Duty torque converter?
I found it here, www.oregonperformancetransmission.com/product/PDQ-TOY-342.html, found it cheaper on eBay.
Hey what does ur motor mounts look like I have a 2203 swap in a cj2a everything rattles like crazy thou
So the motor mounts look like stock Wrangler mounts but I got bushing from Brown Dog Offroad here:
browndogindustries.com/BU2500K2-Rubber-Bushing-Motor-Mount-Rebuild-Kit.aspx
I made the motor mounts myself to lower the engine and got bushings from them that would fit my application.
How much $$$ have you spent on adapters that you never used?
The setup you had with the AW4 would have been fine if you just went to the junkyard and got some 4.10 axles.
So the original adapter was like $725 ish, it's been two years so I can't remember. Going to 4.10 axles is possible however because of the Right Hand Drive all the axles have their brackets installed in a mirror location, so I would have to cut and re-weld all the axles, again doable but not a simple bolt in swap either. Ultimately I went with the 6r80 6-speed automatic because I had that adapter already for another project that is more than likely changing because of some length issues that I've been running into with the design.
I did not realize yours was IDI (indirect injection). Do you have any idea if you could run waste motor oil or waste vegetable oil in it? Also I'm a little color blind and I thought for sure your Jeep was fire red like mine lol.
I should be able too and I've thought about trying to do so as well but I need it running better first!
@@RustyAutoholicGuy I definitely understand that. I was just curious if that was an option on those motors. I know the tolerance on the injectors is a lot tighter on the newer engines
Ran, veggie oil and home made bio, had a bad infection fuel tank looked like a sod farm, couple quarts 10% ethanol fuel fixed the infection
Over a year later the fuel system pluged up. Found the veggie oil if not separated has a wax type buildup looks like gasket sealer took out the injector system pump and injectors.
My conclusion saving pennies cost about $1000
Not belly ackin just sayin alternative fuels work as long as you don't skimp on the process. I'm back to pump fuel, it just works
@@jeffscruton6327 absolutely! Definitely don't cut corners on alt fuels. I think if you were looking for a safer alternative fuel you should look into waste motor oil. I believe it takes a lot less work to make it safe to run in your vehicle.
@@kyfiss9176 another alt is hydraulic oil, have a friend gets the used or non used oil from an OEM does upgrades and doesnt reuse the oil another option is machine shops change oil on a scedule
The ol aw4 swap
Yeah I just can't seem to get away from it!
@@RustyAutoholicGuy lol you're the AW4 guy
Nice setup. How do you think it would stack up against one of the Mitsubishi factory turbo diesel jeeps?
I've always been interested in the CJ-3B Jeeps from Mitsubishi, I've seen a few for sale here in the US, I believe they are around 85hp and I don't know the torque of the top of my head, I would guess under 200ft/lbs, I know they get good fuel economy as well.
Without having driven one or worked on one I can't say anything definitive however I will say having a diesel engine from the mid 2000s vs a diesel engine from the 70s/80s I imagine this Kubota is quieter, cleaner and produces more torque than the engine that comes in the Jeeps from Mitsubishi.
@@RustyAutoholicGuy yes, the naturally aspirated ones ended up with about 85bhp and 16kgm. The direct-injection turbo version bumped that to 96bhp and 21kgm. I put some info together on those here: th-cam.com/video/6CivSVYOhko/w-d-xo.html
I’ll look into Kubota availability for an eventual replacement if my 4DR6 ever dies! I’d be more likely to find a marinized engine here. Was the direct injection unit available in marine trim?
@@LesSharp I don't know honestly about the marine trim. I will also tell you mine is IDI not DI, which means I'm down on power but I can run bio-diesel which is a bonus, there are a few places to get it which cost less.
I'll check out your video tonight!
Sounds like it would have been easier to just buy the LJ70? (Diesel Land Cruiser)
Honestly . . . probably but I wouldn't have learned everything I have learned along the way.
Something I've never seen is a two-hand drive Jeep.
If you need RHD stuff, look in Australia 🤙🏽
Time for elbow grease