1FZ-FE Thoughts/Clarification

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I plan to make them, yes. It’s behind other projects atm. I do have a scan and a whole setup.
Do you think you’ll ever do a 2UZ to H55 adapter? I have a spare block and the adapter piece that goes between the block and the bell housing if you need items for scanning.
 
We have designed and manufactured a 2UZ-FE/H55 adapter set up and have successfully completed two conversions using it, one in a 40 and one in a 60. We are also in process of doing the conversion on a customer's 60. Both of the trucks that are completed are shop trucks that we have used for R&D and testing; the completed 60 that we have done has turned into my daily driver. The design works extremely well and both trucks are an absolute blast to drive and wheel! I have a run of adapters that will be completed and ready to ship as early as next week. I plan on doing a proper release of the product in the next couple of weeks and we will have both the 40 and the 60 with us at Cruise Moab this year and have them on display on Vendor night.

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Wonderful, and I don't think I could ask for better timing. I'll keep an eye out for a for the kit to get released soon.

@midknightc3 apologizes for the detour away from the 1FZ-FE swap conversation.
 
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We have designed and manufactured a 2UZ-FE/H55 adapter set up and have successfully completed two conversions using it, one in a 40 and one in a 60. We are also in process of doing the conversion on a customer's 60. Both of the trucks that are completed are shop trucks that we have used for R&D and testing; the completed 60 that we have done has turned into my daily driver. The design works extremely well and both trucks are an absolute blast to drive and wheel! I have a run of adapters that will be completed and ready to ship as early as next week. I plan on doing a proper release of the product in the next couple of weeks and we will have both the 40 and the 60 with us at Cruise Moab this year and have them on display on Vendor night.

This makes way more sense than a 1FZ swap for the time/effort.
Will you have a motor mount kit, fan shroud, etc to accompany? I would definitely like to try one of these.
 
How does the H55F do behind the 2UZ from a shift-point of view, Stephen? I know the iron case can obviously take the torque.
Onur, The spacing between the gears feels natural; I have noticed no gaps where it feels like there is too much or not enough room between them. With regards to RPM shift points, its good as well; very natural. Admittedly, I have not taken notes of what RPMs I am shifting, but I also haven't felt the need to do so since it's not necessary to shift at high RPMs. If you wanted to really get on it and accelerate as fast as possible, then you can certainly extend out the RPMs to achieve that (which I have done just because it's fun to do). It's very natural feeling in the 60 with 3.70 gears and 33 inch tires and I'd say that even with a 34" tire it would still be good (I am contemplating doing just this). In the 40 with 4.10 gears and 33 inch tires it's a little over geared and there is definitely room to run 35s or larger. If doing the conversion in a 62, then an UD gear in the T-case wouldn't be a bad idea if running 33s or smaller.
 
This makes way more sense than a 1FZ swap for the time/effort.
Will you have a motor mount kit, fan shroud, etc to accompany? I would definitely like to try one of these.
We do have all of those items designed and we will likely offer those in the future as well. For the fan, unfortunately it has to run e-fans. The hub for the fan on the 2uz is to low and too far to the driver's side to allow the use of the mechanical fan. We even tried some other fan variants with a smaller diameter and those didn't work. All that being said, we do have shrouds designed for both set ups, 40 and 60 series. An FJ55 may be in the future and I'd love to get a leaf sprung 70 series in to be able to develop those mounts and bits.
 
Wonderful, and I don't think I could ask for better timing. I'll keep an eye out for a for the kit to get released soon.

@midknightc3 apologizes for the detour away from the 1FZ-FE swap conversation.
If you are interested in a set up, shoot me a PM. I already have 4 of the 10 spoken for. I'm hoping and somewhat expecting that they all get allocated rather quickly and that I have a lot of requests so I can gauge the demand for the next run.
 
I didn't read all the comments on all 5 pages of this thread so I hope I'm not parroting something already offered. An alternative to the toyota engine might be the Atlas 4200 engine. Inline 6 24 valve common in several older SUV models. Engines have proven to be quite robust with good power curves. I've reached out to one company about a quote on an adapter to an H55.
 
Today i went to the shop to check it out. I should bring him 1fz housing so he can have pert closed round.

I didn't like the shape of the of the retainer
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I'd find a new patternmaker ASAP.

That is substandard work.

Did they use an old bellhousing for a pattern? That does not work for aluminum.
 
Yeah, yes they are and this is what we have in here. There is a cnc shop in Qatar that would cost 1000% the cost of this. The plan to go with the cnc shop but maybe later.

Aluminum shrink rate is around 1.5% which is pretty noticeable on parts this size. If you take an existing part and try to copy it by using it as the pattern in an aluminum casting it won't work well.

Patterns also need to be super smooth so they come out of the sand nicely and the sand being used needs to be the right grade and condition for what you're trying to cast.

If your goal is a one-off bellhousing I recommend a combination of welding plate aluminum to an existing bellhousing and post-machining to bring everything back into tolerance. This can make a very nice part and it's a lot easier to come up with good TIG welders and good machinists than it is patternmakers and foundries for low volumes.

If your goal is the production of a product then you definitely need a better patternmaker. The quality of the pattern is the heart of your product.
 
@Meshal are you still working on having an H151 bell housing re-tapped to adapt to the H55, or have you abandoned that for the casting you're talking about above?

A couple questions for those with more knowledge than I, are my current FJ60 gauges going to be compatible with the 1FZ, or am I going to need a new gauge cluster?

Any recommendations re-A/C? Do I just keep the old 60 setup, source an FJ80 system, or something different?

Engine should be coming out of the shop in the next couple weeks, so things might start happening soon!
 
A couple questions for those with more knowledge than I, are my current FJ60 gauges going to be compatible with the 1FZ, or am I going to need a new gauge cluster?

I believe the 60s oil pressure sensor will thread right into the 1fz, and if not you'll be able to plug right into the 1fz's sensor and get about the same functionality (don't use the wrong terminal though!), coolant temp you can make a pigtail to adapt to the 1fz's sensor, the signal will be compatible (the resistance vs temp curves may be slightly different but probably not too much). Speedometer is cable driven so as long as you're running a 60 transfer case you're gtg. It also uses a 4 pulse/rev Reed sensor (not sure what for exactly but I don't think you'll be messing with that in your swap anyway). Tachometer would be the only tricky one because the redlines are different and because I can't say off the top of my head weather or not the 1fz has a wire going to the distributor that carries the same signal as that of the 60. Worst case scenario you'll be coming up with your own face plate and fabbing up a hall effect sensor with the math done such that you adjust alter the needle range to accommodate a higher redline. Alternatively you could possibly look into fitting the 80s tachometer mechanism behind the 60s needle and face plate? It's all doable and would be awesome to keep the stock look.


Any recommendations re-A/C? Do I just keep the old 60 setup, source an FJ80 system, or something different?

You'll use the 1fz compressor and have custom lines that connect it to the 60s stock system. But you'll be converting to r134a so every seal in the stock system will need to be upgraded. Electrically the simplest solution would be to swap your A/c amplifier with a donor from an fj62, its plug and play. Compressor will wire right up to the 60.
 
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That is all exciting news @60 toy ota . I had a brief moment of distraction when I saw @bagochips76 posted his 2UZ adaptors are ready to go, that is a very intriguing option but the 1FZ is already most of the way through the rebuild and I have a pile o parts for it. Is there any problem keeping the FJ60 A/C condenser, that wont reduce efficiency?
 
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