300maniac

I found a mercedes with the om617 with bad trans for cheap, thinking of a possible swap in 87 22re 4x4. how much more power than the 22re? what about mpgs, was it worth your time and money?

89lc

It wasn't worth it for me, but my 4runner is a little different than everyone else's swap. I have a lot of extra weight, one ton axles, and it just didn't have enough power to spin 42" tires very well. With the 35's, I could get around 20 mpg. For power, I could hold speed up a hill when my other 4runner with comparable gears and tires and a healthy 22re couldn't (also weighed less). I did turn up the fuel on the IP, so a stock engine would differ.

PowerstrokeJoe

I am happy with mine and it was worth while. It has plenty of power for me. 89lc has a very valid point though. If your truck is relatively stock its got plenty of power but I can see it being underpowered for a truck with big tires. I'm running 32 inch tires and It will run 75 comfortably all day long.

2003mikem

iTrader: (1)

I am happy so far with mine. The power is much better than the 22RE IMHO. Yes it could have more power. You can always have more power.
The big things to consider are. Can u fab up the thing you need? Even with any of the kits you will need to make or adjusted many things. As all the kits are a basic one size fits all. And they are not.
As for bigger tires and power gears have a lot to do with it. but the OM617 compared to the 22R/22RE with the same truck or runner same tires and gears I think the OM617 would out do the 22/RE all day long
There are a few reason people would dot his swap.

1. Millage
2. More torque
3. Just to do it
4. Because its DIESEL
5. Lack of affordable performance from the 22R


In my cause I use my 4Runner as a Daily Driver. Light trail use I haven’t been on a trail since the swap” and I pull it behind my RV when we go camping.

I also plow with it.

For the time and money part is it worth it? for my yes. I went from 12-14 MPG to 24-29 MPG. I haven’t touched anything on the OM617 to add performance. I’m kind of scared to do so because the OM617 is hard to come by here in the rust belt.

I have about 125+ hours in the swap.

But that included a front axle rebuild with a marlin crawler kit. 4 wheel brake job and exhaust by me. kind of funky but it works.

And I would say I have 40-50 hours at least left. Finishing the wiring and cleaning up under the hood.


Just to sum it all up. once I am all done. And it’s sold “LOSING MONEY “ I am going to do a LandCruise 80 series.

rlacasse1

What kind of mileage are you getting with your truck?

1985eXtraCab4x4

My 85 is a keeper [I'm the original owner] and I have zero intentions of ever selling it. It’s stock with a 22r and 5 speed.

After reading about the different swaps avaible I was wondering if the OM617 Swap is less time consuming than the other swaps...or is it MORE time consuming when you count all aspects. I work 2 business and the winter months is the only time I have to take on projects like this.


I know it will not happen this winter but possibly next....

I relish the idea of passing in 5th gear with 31’s [the largest I’ll ever run] and the economy of the OM617 and I would probably take on making my own bio fuel depending on availability of waste cooking oil.


I just bought a stock 95 T100 3.4 with auto for towing my 6x12 enclosed and thus far towing has been a huge relief.

Just wondering if the OM617 with the 5sp will match towing grunt of the 3.4 in the T100 with auto...?


Any input appreciated.

PowerstrokeJoe

No it won't come close as far as towing goes, especially with an enclosed trailer. The heaviest thing I have towed with mine was 2 4 wheelers on a 6x12 trailer and you could run in 5th but 65-70 was about tops and on a real steep hill you would probably have to go down a gear. Don't get me wrong its a power improvement and I love it, but its still a 120 horse engine. The fuel economy is awesome though!

1985eXtraCab4x4

Just for daily drivers I own a 93 and 98 Honda Civics and it never gets worse than 32 mpg.

So with a om617 swap with stock gearing is 30 mpg possible? Is 40 mpg possible?

I'm still trying to figure out what 22r tweaks are cost effective short term.

2003mikem

iTrader: (1)

My Toyota diesel pulled a 300D with no problems LOL.

2003mikem

iTrader: (1)

The red neck way to strip the under belly of a car. HE HE

1985eXtraCab4x4

Okay.....how do these 2 scenarios compare....?


Full OM617 conversion vs. a ........Stock 22r engine on the bottom end with a LC engineering super charger LOW BOOST and a weber carb properly set up and loose the stock ignition with an after market one. I live in a state were I can loose the catalytic converter but I keep bouncing back and forth on bothering on a header or even a different cam than stock.


The Old School Toyota specific non dealer shop I take my 22r truck to for work during my busy season... is not sold on weber carbs or after market cams. He doesn’t think they are cost effective for performance gain....?


This same shop re did my timing chain and head gasket a few years back but I suspect the head gasket is leaking again....

Transplanter

You would still have more bottom end torque with the om617,plus that 22r wont last nearly as long being supercharged. The om617 responds really well to pump tweaks and water/meth injection as well,so your not stuck with stock power output levels.

1985eXtraCab4x4

I'd love to see a OM617 Toyota installed in person. Smell the fumes test drive and I'll supply the premium beer and we'll talk shop.

I believe it would be a good fit for my use even though I've never been a fan of the diesel clatter and clank effect. Just concerned about all the foot work and wild goose chase factor of getting it altogether since my Toyota's are used for work/business use.....?

DirtyHarry460

does any one know what gears to run if you were to do the swap and run 37s. I have 4.10s with 37s and am gonna buy 5.29s. about 600 bucks. But if i can get an om617 and be able to run the 4.10s ide rather put the 600 towards the om617

riddarunner

I ran 4.10 with 37's and a stock trans. Wasn't fun the truck wanted to fall on its face every time I took off from a stop. If you're not towing 4.30 gears and a r151f trans with 37's are ok 4.56 better.

flatspeed

Happy with mine so far, 98 Tacoma with an om617, 32" tires, all stock. I come from a 86 extra cab 22re with 33's. They are similar in performance. I had to keep the 22re wound up while going up hills, now i have to keep the diesel boosting while going up hills.
It's slow as ˟˟˟˟˟ off boost/low rpms, but it has enough torque to crawl around in 1st/reverse without giving any throttle- just let out the clutch and go.
I haul my sled around with it. Sled + deck are probably ~550 lbs., and the truck doesn't notice its there. It does however, have a hard time going uphill over 100kmh (60mph) in 5th gear..sometimes 4th too, depending on the hill.
Just don't expect cummins type power out of this thing. Despite what people tell you, there are virtually no big power mods you can do to these engines within a reasonable budget. You either fork out some big $ for an upgraded injection pump, or live with it basically stock. turning up the boost does nothing..
I'm getting ~25mpg, which is sweet, because the 22re was getting 17-18..
The best part for sure is the sound, listen to this thing..

DirtyHarry460

I have w56 does that make a difference compared to r151.

4.10 to 4.56 is only a 10% gearing change so I've heard.

Transplanter

The w 56 is weaker than the r series,but the r series is harder to adapt because of its increased length. Most om617s are turds off the line and aren't that impressive due to stretched timing chains that cause the injection pump and can timing to be very retarded,fix the stretched chain issue and adjust the full load and torque management in the pump,turn upthe boost and you will have a whole different animal. Water methanol injection is good for an easy 20+hi as well. Our 2wd runs 16s in the 1/4 while spinning in 1st and 2nd gear and hitting the governor. No need to downshift for hills or to pass,even with an 1,100lb Cummins engine in the bed. Have have the truck up to 119 MPH too.

flatspeed

This is good to know. I measured my chain stretch before I installed my motor and it's def. in need of a new one asap. I didn't realize it affected power that much..totally explains the sluggishness off the line.

Transplanter

Just advancing your ip timing will help out a bunch,also make sure the vacuum line from the intake manifold to the ip will get plugged up(the banjo bolt going into the manifold is what gets plugged) and when this happens,the ip has no way of knowing the Turbo is working and wont add fuel with boost. Your intake manifold is probably full of carbon and sludge from the egr and crankcase vent. I've seen ports so clogged that I couldn't stick my pinky into them. At least you can change out the timing chain in under an hour.