The funny thing is, I was just looking for this stuff not that long ago. I guess we all look to unrealistic modifications when the weather gets cold
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Below are the transmission specs for all Toyota "C" Transmissions (from an Australian forum, I think), which are interchangable. You just have to change the axles in a manual transmission along with the final drive ratio (3.526) from a 2000-2005 Echo to get some seriously tall gearing. Would probably be underpowered, but throw a small turbo on there, and you are in milage heaven... Now I am really talking unrealistic (read: cost prohibitive) mods!
I "think" yours is the C52, but don't quote me, I was looking for the 2002 transmission.
Here are ratios for various C gearboxes:
All C-series transmissions have a 3.250 reverse gear ratio, new generation C55# notwithstanding; they use a 3.214 reverse and 3.944 axle ratio exclusively.
C40/C140
3.545 1.904 1.310 0.969
C50/C150/C50F
3.545 1.904 1.310 0.969 0.815
C51/C151
3.545 1.904 1.233 0.885 0.725
C52
3.166 1.904 1.310 0.969 0.815
C53/C153/C53A
3.545 1.904 1.310 0.969 0.725
C54/C154
3.545 1.904 1.392 1.031 0.864
C155
3.166 1.904 1.310 0.969 0.725
C56/C56M
3.166 1.904 1.392 1.031 0.815
C57
3.166 1.904 1.233 0.969 0.725
C58
3.545 1.904 1.233 0.969 0.725
C59
3.166 1.904 1.310 0.885 0.725
C60/C160
3.166 2.050 1.481 1.166 0.916 0.725
C63
3.166 1.904 1.310 1.031 0.864 0.725
C64
3.166 2.050 1.481 1.166 0.916 0.815
C65/C65M
3.166 1.904 1.392 1.031 0.815 0.725
C66/C66M
3.166 1.904 1.310 0.969 0.815 0.725
C250
3.545 1.904 1.310 1.031 0.815
C251
3.545 1.904 1.392 1.031 0.815
C550/C550A/C550K
3.545 1.913 1.310 0.973 0.804
C551/C551A/C551K
3.545 1.913 1.310 1.027 0.850
Among the available axle ratios of the C-series:
3.526 3.722 3.941 4.058 4.312 4.529
And check out the following website:
Gear-Speed Calculator Program
It provides a calculator program that we all can use to calculate speed, using gear ratios and tire size.
