RomanDave's Prius C swap

[mitch9521]

Originally Posted by Neinris

That is awesome information! Do you get the Scion xD equivalent in New Zealand? It has a final gear drive of around 3.94, might be something to look into. The xB1, xD, and Yaris all have the same 1st to 5th gear ratio, just different final gear ratio, 4.31, 3.94, respectively and the Yaris here have 3.72, not 3.5 like you mentioned.

I wish I know how to tune the ECM, because I have another "Frankenstein" in mind.

The 1st gen Yaris was labeled as the Echo in Australia, New Zealand and Canada. They have the 6 bolt C150 transmission with the god-awful 3.52 ratio.

The 2nd and 3rd gen Yaris have the slightly better ratio'd C50 with the 3.72FD. I wouldn't even waste my time with swapping in a better FD into a C50 gearset. They're still very much an economy transmission.

[Neinris]

Originally Posted by mitch9521

The 1st gen Yaris was labeled as the Echo in Australia, New Zealand and Canada. They have the 6 bolt C150 transmission with the god-awful 3.52 ratio.

The 2nd and 3rd gen Yaris have the slightly better ratio'd C50 with the 3.72FD. I wouldn't even waste my time with swapping in a better FD into a C50 gearset. They're still very much an economy transmission.

I'd have to disagree, remcafee mentioned that he swapped in the xB1 FD and made the car really lively. I personally would go with the xD FD, which is easy because the transmission is already mated to the engine that I want to swap in.