European C60 install in MR2 Spyder - MR2 Owners Club Message Board
 
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post #1 of 7 (permalink) Old December 2nd, 2015, 01:55 Thread Starter
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European C60 install in MR2 Spyder

I have a 2003 MR2 and would like to upgrade it to a 6 speed manual. I bought a European C60 Spyder Transaxle and will be installing it soon. I understand that no additional parts will be needed on the trans but am not sure about the shifter mechanism. Has someone done this swap already? Do I need any additional shifter parts? Other tips? Thanks
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post #2 of 7 (permalink) Old February 5th, 2016, 11:17
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Originally Posted by carguy1000 View Post
I have a 2003 MR2 and would like to upgrade it to a 6 speed manual. I bought a European C60 Spyder Transaxle and will be installing it soon. I understand that no additional parts will be needed on the trans but am not sure about the shifter mechanism. Has someone done this swap already? Do I need any additional shifter parts? Other tips? Thanks
I don't have first hand experience, but from what i've read if it came out of a euro spyder, it will swap directly into your US spyder. I've also read that the stock 5 speed shifter with work without any modification as well.
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post #3 of 7 (permalink) Old February 25th, 2016, 00:54 Thread Starter
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Shifter works but have internal problems

Made the swap and have no problem with the shifter. It works fine with no modifications. I do have an issue though. I swapped the input shaft and final drive 4.5:1 differential into the trans from the celica GTS. Now I have some gear whine worst in first and second Bearing issue at the end of the input shaft compatibility? Any ideas out there?
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post #4 of 7 (permalink) Old March 2nd, 2016, 11:19
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Originally Posted by carguy1000 View Post
Made the swap and have no problem with the shifter. It works fine with no modifications. I do have an issue though. I swapped the input shaft and final drive 4.5:1 differential into the trans from the celica GTS. Now I have some gear whine worst in first and second Bearing issue at the end of the input shaft compatibility? Any ideas out there?
Your best bet would be to check over on sypderchat, it seems like hardly anyone comes on this section of the forum anymore, you will get more answers there.
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post #5 of 7 (permalink) Old June 23rd, 2016, 00:16 Thread Starter
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6 speed and light flywheel works great

I was able to troubleshoot my whine and make needed changes. I installed a lightweight flywheel from Asco Racing. Between the light weight flywheel and 6 speed the changes really woke the 1ZZ up. Perfect gear range and brisk acceleration. I would highly recommend this modification.
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post #6 of 7 (permalink) Old June 28th, 2016, 16:38
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Did you get a new "ball" showing the 6 speed pattern?
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post #7 of 7 (permalink) Old June 29th, 2016, 02:41
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Here's my version of the facts regarding C-series transmission in the Spyder, and it's a little bit different from what is stated here.

A C60 is found in Celica, Corolla, and Matrix 2zz, all of which are front-wheel-drive cars. It does bolt on to the 1zz and 2zz engines, but other than that it is NOT a direct fit for a Spyder. It requires replacement/modification of the shifter shaft and at least one additional bolt hole drilled and tapped on the transmission case to accommodate one of the the Spyder shift linkage brackets, which is different from its FWD counterparts. The C60 has closely spaced gear ratios and a 4.529 final drive ratio. It's optimized for the 2zz with rev limit about 8000RPM and lift engagement about 6000RPM (there are variations in these numbers year-to-year and market-to-market).

If you have found a six-speed transmission that is a bolt on with no modification, then it is most probably a C66. This came standard on Euro-spec Spyders, and it is a direct fit for USDM Spyders. It has a 3.941 final drive (the US standard 5-speed has a 4.312 final drive). There is a torque penalty when you use this transmission - this means that acceleration would feel less brisk, not more. On the other hand it lets you cruise 70mph at about 2800-2900RPM on stock-sized tires.

Of course it's possible that you have found a C60 that has already been modified to fit the Spyder. Indeed it would feel livelier than a stock 5-speed, but with a stock 1zz 6800RPM rev limit, you would be rowing through the gears to get anywhere with this one.

For more general info on C-series transmissions go here:
https://docs.google.com/spreadsheets...kaQ/edit#gid=0
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