Mitsubishi 4D34-2AT3B diesel swap into 96 FZJ80

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I am really stoked that it is finally working as it should. As a bonus, it sounds like you still have some wiggle room with the fuel screw. Looking forward to seeing what it can do with the screw turned up even louder. I think you are going to be looking at a bigger turbo soon!

Considering the stock engine, with super restrictive exhaust and small intercooler, is rated at 135 hp I would bet that 165-180 is possible with some additional fuel and some turbo mods, given the stuff you've already done.

It's hard describing speed and power through seat of the pants and especially since we all have different daily drivers and reference points, but from your description, it sounds like you might have had a problem with the 3AT pump from the get-go. Mine is no rocketship, but it does pickup and go pretty good, and I really only notice the lack of power at highway speeds and when towing. My 0-60 time is around 16 seconds, I haven't really measured it very precisely, and it's probably quicker now on the winter 265/75R16s, and it feels faster because it's so torquey.

If someone is trying this swap, I think the parts list above is the best possible overall end result if you plan on getting over 145 hp, but it is probably the most difficult to source because you need parts from two different Fusos. Using the fully electronic 3AT series, as it stands now, doesn't provide the same level of tune-ability as what's described above, but you can get away with one single donor truck.

My 3AT model runs great and I am happy with the power output so I probably won't mess with it a whole lot more, but it's definitely no hot-rod. I'd bet once Superhatch gets this thing dialed in, it will be a rocket. Hell, it has a red intake manifold :hillbilly:

Just give that screw a couple of whirls and drive it with your pyro :D
 
Excellent. The hurdle has been crossed.

Next if you want to see what power is possible. See if you can find what size plungers your injection pump has. Look for a tag on the side, the plunger size is coded into that.
 
Fromage said:
I am really stoked that it is finally working as it should. As a bonus, it sounds like you still have some wiggle room with the fuel screw. Looking forward to seeing what it can do with the screw turned up even louder. I think you are going to be looking at a bigger turbo soon!

Considering the stock engine, with super restrictive exhaust and small intercooler, is rated at 135 hp I would bet that 165-180 is possible with some additional fuel and some turbo mods, given the stuff you've already done.

It's hard describing speed and power through seat of the pants and especially since we all have different daily drivers and reference points, but from your description, it sounds like you might have had a problem with the 3AT pump from the get-go. Mine is no rocketship, but it does pickup and go pretty good, and I really only notice the lack of power at highway speeds and when towing. My 0-60 time is around 16 seconds, I haven't really measured it very precisely, and it's probably quicker now on the winter 265/75R16s, and it feels faster because it's so torquey.

If someone is trying this swap, I think the parts list above is the best possible overall end result if you plan on getting over 145 hp, but it is probably the most difficult to source because you need parts from two different Fusos. Using the fully electronic 3AT series, as it stands now, doesn't provide the same level of tune-ability as what's described above, but you can get away with one single donor truck.

My 3AT model runs great and I am happy with the power output so I probably won't mess with it a whole lot more, but it's definitely no hot-rod. I'd bet once Superhatch gets this thing dialed in, it will be a rocket. Hell, it has a red intake manifold :hillbilly:

Just give that screw a couple of whirls and drive it with your pyro :D

I agree 100%... i plan on starting to mess with the fuel screw this weekend. :)
 
Excellent. The hurdle has been crossed.

Next if you want to see what power is possible. See if you can find what size plungers your injection pump has. Look for a tag on the side, the plunger size is coded into that.

In order... best I can make out

ME011889
107492-2120
781R968371
107049-3071
S4MD110/32ARS2


Thank you for the details SuperHatch. Nice work!

You're quite welcome...
 
I would say that this truck is all I ever hoped for out of this conversion and more. After putting 1000mi on the 2AT setup, I can't imagine it any other way. I turned the fuel screw out one to one and a half turns and there was a noticeable increase in power. EGTs will hit 1200* locked up in OD flat out for 15-20 seconds, but flooring it from a dead stop through 1-3 gears it never gets over 1050.

0-60, 14-15 seconds. The real trick is in the passing power... 55-65 in 6-7 seconds. The truck takes a few seconds just to get going when you nail it from a dead stop. The roll-on torque is where it's at. Love this truck, just love it.

Will have new fuel economy numbers by the end of the week.
 
In order... best I can make out

ME011889
107492-2120
781R968371
107049-3071
S4MD110/32ARS2

Sounds like you are one happy camper.
There aren't any codes in there that ring a bell. Normally there's a string like A095 which means 9.5mm plungers. The closest I can find in yours is the D110, which would mean 11mm plungers, but it could be a red herring.
 
Sweet! That's on your regular commute or a road trip?

Between towing sleds and plowing I am lucky to see 250 miles to a tank... Better than the 150 I was seeing last winter!
 
350 miles of that was my normal commute, the rest was some highway and city driving running errands during the week. My normal commute consists of mostly 55-60MPH driving with almost no stops for 35 miles in each direction.

I am happy with the results, not too many rigs of this size can achieve numbers in that region.

Had the truck out wheeling at Rausch Creek yesterday, that was a blast!
 
Some more fuel economy info. Drove to Rausch Creek (200+ miles), crashed at the hotel, got up and started the truck at 7:30AM in 6* weather, let it warm up for a while, and headed out wheeling for the day. Literally never shut the truck off through the whole day (8+ hours of wheeling) and then drove home. Filled up the next day... 17.5MPG.

Last week drove the truck to CT for work... 75MPH highway driving, short commutes in the AM from the hotel to vendor each morning Tue-Thur, drove home Friday AM all highway and an hour in traffic at 0-2MPH. 19.8MPG. It was cold and there was nowhere to plug the truck in all week.

Very impressed with the mileage... also happy with the power. Wouldn't change a thing with this truck.
 
Some more fuel economy info. Drove to Rausch Creek (200+ miles), crashed at the hotel, got up and started the truck at 7:30AM in 6* weather, let it warm up for a while, and headed out wheeling for the day. Literally never shut the truck off through the whole day (8+ hours of wheeling) and then drove home. Filled up the next day... 17.5MPG.

And that is why I (presuming others too) love diesels soo much. While highway driving might give significantly better economy than petrol, it's offroad and tooling around where they use nothing compared to a petrol and have the torque right where you need it.

Congrats on a very successful swap.
 
ha a nieghbor

:) hi great build ... im new to this site... but a regular at 4bt and pirate..
in the process of doing a diesel swap. 4bd isuzu........ and astr's build
with the 4he led me here ... i noticed that your real close to me ...
im in parkertown moved here last summer.....
 
perseverellc said:
:) hi great build ... im new to this site... but a regular at 4bt and pirate..
in the process of doing a diesel swap. 4bd isuzu........ and astr's build
with the 4he led me here ... i noticed that your real close to me ...
im in parkertown moved here last summer.....

Parkertown is very close by... we should meet up sometime. Shoot me a PM sometime.
 

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