After perusing the internet looking for info in case I ever wanted to swap a 6 Speed in my Corolla I decided to check out a gear ratio calculator to see what speeds I would be at if I had a 6 Speed transmission (keep in mind the C64 allegedly came in the Celica and compared to the Corolla/Matrix XRS and Pontiac Vibe GT C60, allegedly has a different 6th gear ratio).
Here is some interesting info.
Here are the ratios for a 9th Gen Corolla/Matrix/Vibe C59 trans
1st 3.166
2nd 1.904
3rd 1.310
4th 0.969
5th 0.815
Reverse 3.250
Final 3.941
Here are the corresponding MPH at 2500, 3000, and 6000 RPM with 195/65/15 tires
2500
1st 14
2nd 24
3rd 35
4th 48
5th 57
Reverse 14
3000
1st 17
2nd 29
3rd 43
4th 58
5th 69
Reverse 17
6000
1st 35
2nd 59
3rd 86
4th 116
5th 138
Reverse 34
Here is the same chart for the C64 from the Elise and maybe Celica GT-S (unsure of accuracy)
1st 3.166
2nd 2.050
3rd 1.481
4th 1.166
5th 0.916
6th 0.815
Reverse 3.250
Final 4.529
2500
1st 12
2nd 20
3rd 27
4th 35
5th 44
6th 50
Reverse 12
3000
1st 15
2nd 24
3rd 33
4th 42
5th 53
6th 60
Reverse 15
6000
1st 31
2nd 48
3rd 66
4th 84
5th 107
6th 120
Reverse 30
Same Chart for the Corolla/Matrix XRS and Pontiac Vibe GT C60 with .725 6th Gear
1st 3.166
2nd 2.050
3rd 1.481
4th 1.166
5th 0.916
6th 0.725
Reverse 3.250
Final 4.529
2500
1st 12
2nd 20
3rd 27
4th 35
5th 44
6th 56
Reverse 12
3000
1st 15
2nd 24
3rd 33
4th 42
5th 53
6th 67
Reverse 15
6000
1st 31
2nd 48
3rd 66
4th 84
5th 107
6th 135
Reverse 30
What you can see is that with the C64 you have to rev the engine significantly higher in 6th gear to achieve cruising speeds. Just at 2500 and 3000 RPM you can see a 6 to 7 MPH jump at the same RPM. You would have to hit 3500 RPM just to see 70 MPH with this C64. This is a product of the higher top gear ratio from the C59 combined with the 4.529 final drive. All of the shifting, none of the top end. However by switching the the Corolla/Matrix XRS and Pontiac Vibe GT C60 we are at nearly identical levels as the C59 for cruising speed and RPM yet the gears are spaced closer together exactly like the XRS meaning passing will be easier and there won't be as much load on your clutch when cruising along from a stop as there isnt a large gap from 3-4. All of the shifting and the top end.The shifts while closer together are better spaced (and who doesnt want a 6 speed). Also you can still always skip shifts and maintain nearly identical RPM. The reasoning is you can still get all of the benefits of the 6 speed (faster acceleration, easier shifts, claimed better reliability, better gear choices when passing or downshifting, all while maintaining the 1ZZFE C59 fuel economy).
All in all with this data it shows me that the Corolla/Matrix XRS and Pontiac Vibe C60 is the absolute best swap option for those looking to do a 6 speed swap. Not only are they cheaper for some reason, they are a direct swap using all of your existing parts. Not to mention if you haven't grenaded your C59 you can sell it to fund the C60 swap.
Hope this helps.
Here is some interesting info.
Here are the ratios for a 9th Gen Corolla/Matrix/Vibe C59 trans
1st 3.166
2nd 1.904
3rd 1.310
4th 0.969
5th 0.815
Reverse 3.250
Final 3.941
Here are the corresponding MPH at 2500, 3000, and 6000 RPM with 195/65/15 tires
2500
1st 14
2nd 24
3rd 35
4th 48
5th 57
Reverse 14
3000
1st 17
2nd 29
3rd 43
4th 58
5th 69
Reverse 17
6000
1st 35
2nd 59
3rd 86
4th 116
5th 138
Reverse 34
Here is the same chart for the C64 from the Elise and maybe Celica GT-S (unsure of accuracy)
1st 3.166
2nd 2.050
3rd 1.481
4th 1.166
5th 0.916
6th 0.815
Reverse 3.250
Final 4.529
2500
1st 12
2nd 20
3rd 27
4th 35
5th 44
6th 50
Reverse 12
3000
1st 15
2nd 24
3rd 33
4th 42
5th 53
6th 60
Reverse 15
6000
1st 31
2nd 48
3rd 66
4th 84
5th 107
6th 120
Reverse 30
Same Chart for the Corolla/Matrix XRS and Pontiac Vibe GT C60 with .725 6th Gear
1st 3.166
2nd 2.050
3rd 1.481
4th 1.166
5th 0.916
6th 0.725
Reverse 3.250
Final 4.529
2500
1st 12
2nd 20
3rd 27
4th 35
5th 44
6th 56
Reverse 12
3000
1st 15
2nd 24
3rd 33
4th 42
5th 53
6th 67
Reverse 15
6000
1st 31
2nd 48
3rd 66
4th 84
5th 107
6th 135
Reverse 30
What you can see is that with the C64 you have to rev the engine significantly higher in 6th gear to achieve cruising speeds. Just at 2500 and 3000 RPM you can see a 6 to 7 MPH jump at the same RPM. You would have to hit 3500 RPM just to see 70 MPH with this C64. This is a product of the higher top gear ratio from the C59 combined with the 4.529 final drive. All of the shifting, none of the top end. However by switching the the Corolla/Matrix XRS and Pontiac Vibe GT C60 we are at nearly identical levels as the C59 for cruising speed and RPM yet the gears are spaced closer together exactly like the XRS meaning passing will be easier and there won't be as much load on your clutch when cruising along from a stop as there isnt a large gap from 3-4. All of the shifting and the top end.The shifts while closer together are better spaced (and who doesnt want a 6 speed). Also you can still always skip shifts and maintain nearly identical RPM. The reasoning is you can still get all of the benefits of the 6 speed (faster acceleration, easier shifts, claimed better reliability, better gear choices when passing or downshifting, all while maintaining the 1ZZFE C59 fuel economy).
All in all with this data it shows me that the Corolla/Matrix XRS and Pontiac Vibe C60 is the absolute best swap option for those looking to do a 6 speed swap. Not only are they cheaper for some reason, they are a direct swap using all of your existing parts. Not to mention if you haven't grenaded your C59 you can sell it to fund the C60 swap.
Hope this helps.