Cummins Anyone? (1 Viewer)

[Grease Cruiser]

Been meaning to post up these pics for awhile now. We (Proffitts Cruisers) finished this 80 a couple of months ago. Pretty sweet ride. In fact, I am doing one for myself and going to sell my Cummins 60 (one on the left in the last pic).
Specs:
1997 FZJ80
- Cummins 4BTA factory intercooled turbo diesel
- Slee 4" lift
- 700R4 auto tranny, custom built to handle extra torque
- earlier style split case (part time 4WD conversion)
- Aisin lockout hubs

 

[Fochdog]

Very Cool!

What are the specs on the 4BTA? Hp? Torque? Weight?

What vehicle did you get it out from?

 

[LandCruiserPhil]

Clean looking installation

In round numbers what does a conversion like that cost?

 

[alkaline747trio]

Yea, ball park number for that. Under $8Gs would be nice!

 

[alaskacruiser]

Grease- super clean install! Any issues such as cooling system or electrical yet? And what kind of mileage numbers are you seeing?

 

[MLX450]

Beautiful Install.

More Information Please?

 

[WildYoats]

Nice job. More specs on the power!

 

[Grease Cruiser]

I did a writeup of mine (FJ60) about a year ago. Rather than retype all of it, do a search for "Fritota"

But to answer a few of the ?'s. We are pulling the motors out of big box vans.
The 4BT (non-intercooled version) is rated at 105hp and 220lbs of torque.
The 4BTA (intercooled version) is rated at 125hp and 250lbs of torque.

* Don't quote me on those figures as I am probably off a little but it gives you a general idea*

These motors can be "turned up" with a few adjustments of some screws to gain more horsepower and torque with the expense of fuel economy.

Speaking of fuel economy, my FJ60 gets about 25ish mpg. We have not gone through a full tank of fuel on the 80, so no exact figure yet. But, we expect it to be about the same.

No problems with cooling or electrical. I have put over 20K miles on my 60 with the Cummins in it. They run very cool. No electrical issues, the Cummins only have a few wires and is a relatively simple motor.

Now, the $ question. Unfortunately, it is quite costly. With the price of the motor, tranny, t-case, adaptor, minimum 4" lift, etc, etc, it adds up very quickly. It is about $12K-14K.
That is not too bad as the end result is absolutely incredible! You get better mileage, an opportunity to run on alternative fuels, and a vehicle that will last a very long time. That's not too bad in my book. Especially, if you look at buying a 100 series or a 4Runner which you would get better mileage than.

If anybody wants further info or to talk diesels, feel free to call the shop toll free at 1-877-PROFFITT.

We have 3 more 80's lined up in the next few months. We just finished a 62 and are in the process of another. Oh, and we are doing a FJ43.

 

[gnx7]

Would the 4BT be able to tow a 5K lb trailer behind the FZJ80 and 5 occupants inside without issues?

 

[Trunk Monkey]

Wow, very impressive. I'd heard about the truck from a friend that dropped a truck off at the shop a few months ago. Looks like the engine fits the bay really well.

 

[cary]

Maybe I'm not getting it, but why would I want to spend $12-14k to have less power on a truck that is questionably underpowered already.

At $4.00 a gallon for gas, driving 15,000 miles a year, it would take 5 years to break even on gas costs if the gas mileage went from 12 to 24mpg, and that is with the cost of the conversion comming in at $12,000. For that money, why not at least go with a diesel that is putting out 400ft/lb torque or more?

 

[NeverFinis]

I would think a Duramax would be a better swap candidate since it should be a shorter engine. It is 840lbs dry. I am not sure how much the 1FZ-FE weighs. Plus, I believe it takes a standard chevy bellhousing and motor mounts.

 

[gnx7]

You can turn up the injector pump speed and get 350-400 ft/lbs of torque from these little turbo 4 banger diesels. Plus most of the torque is delivered at a very low RPM.


I forgot to ask. How loud is it in the cab now with loud/clanky Cummins under the hood?

 

[Rainy Day FZJ]

Do you think that $ wise it would be cheaper to use a nv4500?, I have no idea what a clutch pedal cluster goes for an 80 series.

 

[Mr. Toad]

For that money, why not at least go with a diesel that is putting out 400ft/lb torque or more?

Think you could get a 400 ft/lb diesel and have the truck converted for $12K?

I have a line on an 80 series with a bad engine that I can get for free. So $14K for a 25 m.p.g. F4BT80 sounds not so bad. Hmmmmmm

 

[DirtyHarry]

That looks like a super clean install, which is in line with everything I have ever seen come out of Proffitt's shop. I will have to head up there before too long and see one of these in person.

 

[squeezer]

Fantastic repower...

Have a serious diesel cruiser bug, (actually a chronic disorder) that was being treated buy a BJ60 for a few years... Sold the BJ a while ago now all my cruisers are afflicted with a malady called spark plugs !!!

In a longoing effort to treat that I have collected the following:

Yanmar 2.7l diesel
Cummins 4BT/TH400
Cummins 6BT/AT545
Mercedes MBE906/6 spd

Yes there are 4 diesel engines rolling around on stands in my garage.

Have speculated for a while that a 4BT powered 80 would be damm near perfect.

Have the 80, have the 4BT... Don't really like the 700R so have been thinking long and hard about running a Marks 1FZ-SBC adapter and this custom tranny controller http://www.powertraincontrolsolutions.com/content-10.html

Anybody want to speculate on how suitable the 340 tranny would be with 100% control of shift points and TC lock-up ?

 

[Walking Eagle]

At $4.00 a gallon for gas, driving 15,000 miles a year, it would take 5 years to break even on gas costs if the gas mileage went from 12 to 24mpg, and that is with the cost of the conversion comming in at $12,000. For that money, why not at least go with a diesel that is putting out 400ft/lb torque or more?

Well, I'm probably closer to 20,000 a year - so 3.6 isn't bad. You can run Bio, that you make yourself for .75 (I think that's what Stacy on trucks said) figure twice that $1.50. You're down to 2.22 years. In year 3 you get to put an extra $5,400 in the bank, same year 4 and 5.

More realistically, it's probably makes the most sense if you already have to replace your motor, or like Mr. Toad - have one for free with a bad engine. Then you get to subtract the $5-6,000 you'd have to spend anyway. Then the pay off, if you're not doing bio-diesel or veggie or anything like that, $4 for a gallon, 15,000 miles a year, figure it cost you 7g's extra, the payoff is 2.8 years. That's not bad at all. Especially since year 4, $2500 goes in my pocket. Three years of that, and you will have saved enough to replace the 4BT when it wears out (10 years later).

The 12g's, is that including the 4" lift? I'd drop that $2355 off the top (or maybe that's the difference from 12-14?) eitther way, it's something you'd have to do to the gas to make it 'equal'.

Another way to look at it, you can pick up a 80 series for 10K with lockers, put 14K into a diesel conversion, and still be under what a new CRD Liberty costs.

I like it. When my engine goes, which hopefully won't be for another couple years (180,000 and counting), I'll certainly be taking a long hard look at it. I keep re-reading the article on the 4BT in the 60 in Toyota Trails, saying to myself, damn, that's some mileage. One look, and I certainly know where I'd be taking it for the conversion too. That is one sweat conversion.

As long as I'm being a wind bag - I like the lower HP and torque of the 4BT. You don't need 300hp and 600ft lbs all the time. I'd throw propane in and only suffer the relatively few times I really need that kind of power.

 

[Dusty]

what a wonderfull thing you have done! I would agree with CARY in that if I needed this conversion to act as a daily driver in our society for much of any commute on normal highways-thats just too slow. But...if I just had to putt to work every day and play on the weekends I couldn't think of a better conversion due to the simplicity of it. You could just chug along that trail all day long. Think how nice it would be to get 25mpg on road trips. (going 60mph-ouch)

 

[Tapage]

The only issue with the 4BT and family engines are the weight and the deep oil pan ..