First US 2ZR-FE Yaris swap gains exposure

[ArmstrongRacing]

Thank you for the feedback.

I dont want to control the information, Ive already created a list of parts needed in the beginning of this discussion. What I want is to use my sponsors help to accumulate the parts needed, and if there is enough interest we can get a better deal...like a group buy. If there is no real interest, then we just move on and hope the next guy that does this swap tries using a Yaris transmission....because that is the only uncertainty as of now.

[tmontague]

I can't remember if this was already answered, but if the Yaris Trans doesn't work then does the 2zr Trans direct fit into a Yaris.

Optimally you'd just keep the stock Yaris Trans and just mount in the new engine. If the price is reasonable then this is something i'd like to do down the road.

Is the stock 2zr really a big gain in performance over the 1nz? I know the hp increase and tq is good but my question is how does it run as a stock engine? I'm trying to get a feel for how a stock 2zr runs compared to my modded NA 1nz. My 1nz is a lot of fun to drive now and I don't want to give that up just for some extra ponies

[ArmstrongRacing]

The 2zr trans works, its what we used.

Check out post #68, Scott mentioned how well the 2zr performed when he drove the swapped yaris. The gains in stock form are roughly 30hp and 20ftlbs.

[tmontague]

So there is virtually no downfall to using the 2zr Trans other than a bit of extra work and cost. this looks like it would be an engine swap if all the mounts are the same and wiring is plug and play.

Where I live I wouldn't have to register the engine to pass an etest. As long as there are no CEL's then it's good to go as far as I know

[ArmstrongRacing]

When using a 2zr manual transmission you need the xd ABS module and wiring too...because there is no speed sensor on that transmission. Possibly the axles as well, and I think the gear ratios are taller.

[ilikerice]

Originally Posted by tmontague

I can't remember if this was already answered, but if the Yaris Trans doesn't work then does the 2zr Trans direct fit into a Yaris.

Optimally you'd just keep the stock Yaris Trans and just mount in the new engine. If the price is reasonable then this is something i'd like to do down the road.

Is the stock 2zr really a big gain in performance over the 1nz? I know the hp increase and tq is good but my question is how does it run as a stock engine? I'm trying to get a feel for how a stock 2zr runs compared to my modded NA 1nz. My 1nz is a lot of fun to drive now and I don't want to give that up just for some extra ponies

Remember now, the 2ZR is the same motor that is in the Yaris TS. So if you want to poke in that thread section for some questions answered, head there.

[Jason@SportsCar]

Originally Posted by ArmstrongRacing

When using a 2zr manual transmission you need the xd ABS module and wiring too...because there is no speed sensor on that transmission. Possibly the axles as well, and I think the gear ratios are taller.

2012+ Yaris does not have a speed sensor on the trans either, pulls it from the ABS tone ring.

[ArmstrongRacing]

Oh thank you Jason, I didnt know that!

[CrankyOldMan]

Originally Posted by ArmstrongRacing

When using a 2zr manual transmission you need the xd ABS module and wiring too...because there is no speed sensor on that transmission. Possibly the axles as well, and I think the gear ratios are taller.

Yes, if you get the xD gearbox, you need the xD axles. RagNaCat discovered that the differential is the larger one that's similar to the other 1.8L family. Not sure if they're direct swap from a Corolla or Matrix on the axle side, but the Celica and Matrix final drive ring gears go on the xD diff (and not the Yaris/xA/xB).

The speedo sensor hole looks to be the same on all of the C-series gearboxes I've encountered. Looking at the parts diagrams for the xD, the speedo gear is still installed on the differential. If that's the case, you should be able to drop a standard speedo sensor in the hole and keep your Yaris ECU, assuming you have the differential-based speedo in the first place. My 09 has it, and all of the other C-series gearboxes I've torn apart use what appears to be the same part. Looking at the compatibility of the speedo sensor (83181-12020) it's used on lots of stuff: "TOYOTA: 14 models, 905 variants between 1991 and 2013."

[Jason@SportsCar]

Originally Posted by CrankyOldMan

The speedo sensor hole looks to be the same on all of the C-series gearboxes I've encountered. Looking at the parts diagrams for the xD, the speedo gear is still installed on the differential. If that's the case, you should be able to drop a standard speedo sensor in the hole and keep your Yaris ECU, assuming you have the differential-based speedo in the first place. My 09 has it, and all of the other C-series gearboxes I've torn apart use what appears to be the same part. Looking at the compatibility of the speedo sensor (83181-12020) it's used on lots of stuff: "TOYOTA: 14 models, 905 variants between 1991 and 2013."

The speedo hole was there on the 2012, just capped off, but I don't recall the plastic speedo driven gear being on the diff carrier.

[CrankyOldMan]

Originally Posted by Jason@SportsCar

The speedo hole was there on the 2012, just capped off, but I don't recall the plastic speedo driven gear being on the diff carrier.

Hmm. I guess it wouldn't serve any purpose, since the bearing seats against the diff carrier itself, but it's still shown in the xD parts diagrams.

[ArmstrongRacing]

Originally Posted by Jason@SportsCar

2012+ Yaris does not have a speed sensor on the trans either, pulls it from the ABS tone ring.

This would make the 2zr swap so much easier...are the 2012+ 1nz's using a micro MAF sensor too?....that would be a direct swap with no wiring changes!

[LTHatch]

How do you go about checking if its a micro maf? I'll take a look at mine.

[Jason@SportsCar]

Originally Posted by ArmstrongRacing

This would make the 2zr swap so much easier...are the 2012+ 1nz's using a micro MAF sensor too?....that would be a direct swap with no wiring changes!

MAF sensor is the same from 2007-2015. The thing that could hurt your swap on a 2012+ is the ECU and harness plugs, they are different. When we built the 2015 it was easier to swap the entire harness from the 2007 versus rewiring. If you can use the Yaris ECU and engine harness on the 2ZR you should be able to put it in any year car.

[ArmstrongRacing]

Interesting. I dont know that a pre-12' chassis harness would work on a 12+ though...its .not likely due to all of the interior changes. If someone becomes interested, Ill need to get a copy of the 12'+ wiring diagrams to come up with a solution.

[maralieus]

Originally Posted by ArmstrongRacing

Thanks for the support!

Because this project was a auto > manual trans conversion also, we used the Xd manual trans and axles. Ive heard from many sources that the 1nz and 2zr bell housings are compatible, but I wont have a final answer untill I source another 2zr for my personal car.

The ECU came from the Xd also.

Wow this is great news considering my 07 will be ready for a rebuild and new tranny on the next couple years, I can plan towards this instead! Great work and thanks for finding such an easy swap!

[ArmstrongRacing]

Originally Posted by CrankyOldMan

Yes, if you get the xD gearbox, you need the xD axles. RagNaCat discovered that the differential is the larger one that's similar to the other 1.8L family. Not sure if they're direct swap from a Corolla or Matrix on the axle side, but the Celica and Matrix final drive ring gears go on the xD diff (and not the Yaris/xA/xB).

I just did a bit of reading and I "think" what I've found is that the Yaris transmission(C54?) AND the XD transmission(C50?) have the same gear ratios, the only difference is the final drive. The XD has a 3.94 while the Yaris has a 3.72. So in theory the XD gearbox will give you a bit more acceleration.

I'm still unsure if the Yaris Tsport has a 5 or 6 speed though, the Internet has conflicting information...

[CrankyOldMan]

Originally Posted by ArmstrongRacing

I just did a bit of reading and I "think" what I've found is that the Yaris transmission(C54?) AND the XD transmission(C50?) have the same gear ratios, the only difference is the final drive. The XD has a 3.94 while the Yaris has a 3.72. So in theory the XD gearbox will give you a bit more acceleration.

I'm still unsure if the Yaris Tsport has a 5 or 6 speed though, the Internet has conflicting information...

The US Yaris has the C50 as well, but uses a different differential carrier. Other than that, the gears themselves should be the same (part numbers and everything). There are some global variants of the Yaris that use a C53 or C54 gearbox, but they should have the same bell housing bolt pattern and mount bosses.

There's a few variants that use the EC67 gearbox, but it's very different from the C50. The slave cylinder is directly on the throwout bearing, and the hydraulic hard lines are different. The case is also 2-piece instead of 3. Here's an eBay UK listing of a similar gearbox.