3rd gen 2zr swap with 6 speed - Toyota Yaris Forums

stidnam · 10-07-2020, 05:55 PM

Yeah I had my spare Yaris shell all wired up pretty quickly. Only had to move around 10 or so pins to make it work. I was so sure it was going to work simply because all the ECU plugs were the same. However, when you look a little closer, all of the 3rd gen Yaris systems and general build of the vehicle more closely resembles that of the Scion IM rather than the XD. Modifying cars was a lot easier before the days of CANBUS :S

For the ZRE18X swap I've purchased some sumitomo plugs that will take the existing Yaris ECU pins and will then allow me to crimp the pigtails of the ZRE182 ecu plug so I can build a patch harness and avoid chopping anything up. The only real difference in wiring then is that the there's no ELS1 on the ZRE18X, the thermos are controlled via the RFC pin, and the +BM wire goes to the larger ECU connector instead of the smaller one on the Yaris. In saying all that, your conversion in NA is more complicated due to that Valvematic system :(

The speedo won't be a problem. I just wrecked a ZRE18X and pulled the ABS actuator out of it. I'll be swapping that in when I do my conversion along with a new master cylinder and reservoir to clear the top of the engine.

Yeah I'd love to have a drive of the 3ZR in a Yaris before committing. I do think it'd make a big difference around town with it's torque band, but I'm just not convinced for the price. If you were simply using the block though with a 2ZR head and a piggy back management system....that might be worth it.

For anyone interested in the quoted numbers that each engine makes

ADM 1NZ = 81kw @ 6000rpm and 141nm @ 4200rpm
ADM 2ZR = 103kw @ 6400rpm and 173nm @ 4000rpm
ADM 3ZR = 107kw @ 6200rpm and 187nm @ 3600rpm

So the 3ZR comes in at 8% more torque at 400rpm earlier when compared to the 2ZR. That's where you'd notice it, but I speculate that the 3ZR wouldn't rev as easy as the 2ZR. The power gains are negligible and I think you end up with a slightly lower redline with the 3ZR.

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10-07-2020, 05:55 PM	#15
stidnam Drives: Starlet Join Date: Nov 2017 Location: Australia Posts: 177	Yeah I had my spare Yaris shell all wired up pretty quickly. Only had to move around 10 or so pins to make it work. I was so sure it was going to work simply because all the ECU plugs were the same. However, when you look a little closer, all of the 3rd gen Yaris systems and general build of the vehicle more closely resembles that of the Scion IM rather than the XD. Modifying cars was a lot easier before the days of CANBUS :S For the ZRE18X swap I've purchased some sumitomo plugs that will take the existing Yaris ECU pins and will then allow me to crimp the pigtails of the ZRE182 ecu plug so I can build a patch harness and avoid chopping anything up. The only real difference in wiring then is that the there's no ELS1 on the ZRE18X, the thermos are controlled via the RFC pin, and the +BM wire goes to the larger ECU connector instead of the smaller one on the Yaris. In saying all that, your conversion in NA is more complicated due to that Valvematic system :( The speedo won't be a problem. I just wrecked a ZRE18X and pulled the ABS actuator out of it. I'll be swapping that in when I do my conversion along with a new master cylinder and reservoir to clear the top of the engine. Yeah I'd love to have a drive of the 3ZR in a Yaris before committing. I do think it'd make a big difference around town with it's torque band, but I'm just not convinced for the price. If you were simply using the block though with a 2ZR head and a piggy back management system....that might be worth it. For anyone interested in the quoted numbers that each engine makes ADM 1NZ = 81kw @ 6000rpm and 141nm @ 4200rpm ADM 2ZR = 103kw @ 6400rpm and 173nm @ 4000rpm ADM 3ZR = 107kw @ 6200rpm and 187nm @ 3600rpm So the 3ZR comes in at 8% more torque at 400rpm earlier when compared to the 2ZR. That's where you'd notice it, but I speculate that the 3ZR wouldn't rev as easy as the 2ZR. The power gains are negligible and I think you end up with a slightly lower redline with the 3ZR.