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Old 04-27-2010, 04:52 PM   #37
rob323
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By ending up with taller gearing in each gear, all you do is make the car into a slug (more so). You lose the "close ratio" benefits of the C160 box.
Peak torque is developed between 4200 and 4400 rpm (depending on engine) so ideally, they are the revs you want to be doing while cruising for max economy.
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Old 04-27-2010, 04:55 PM   #38
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UPDATED WITH 3.8 FD

Exmple: with 205/55/16 wheels
GEAR=------------------1-------2--------3--------4--------5----------6
c160 with 4.5 FD= 14.9 __ 23.1__ 31.9__ 40.6__ 51.6___ 65.3 @ 3000RPM
C160 with 3.5 FD= 19.2 __29.6__ 41.0__ 52.1__ 66.3___ 83.8 @ 3000RPM
c160 with 3.8 FD= 17.6 __27.1__ 37.6__ 47.7__ 60.8___ 76.8 @ 3000RPM
c150 stock3.5 FD= 17.1 __31.9__ 46.4__ 62.7__ 71.7 _______ @ 3000RPM
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Old 04-27-2010, 04:59 PM   #39
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Ok well just a thought.

I guess I have to go back to the books on gear ratios. I figured if the end mph @ a certain rpm matched. Then It wouldn't matter the gear to final ratio.
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Old 04-27-2010, 06:30 PM   #40
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Well, unless you can do precision machining and grinding, to remanufacture the output shaft with a different final drive gear on the end of it, there are no other options that I'm aware of.

All you can do is put on bigger 17 or 18" tires and put the speed sending unit from the Matrix XRS C60. That would get you close to the F/D you're looking for.
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Old 11-02-2010, 04:20 PM   #41
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Hi, I'm researching, the C60 transmission (toyota MR2 2003-2007, 6 speed) fit in my echo 2004.
Anyone have a feedback about that?

MR2 and echo sharing some platform or parts.
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Old 11-02-2010, 04:56 PM   #42
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The earlier MR2's (SW20) had the gear selector arms on the other side of the box. I don't know if they changed that in the newer MR2's but it would definately be worth investigating, otherwise you will have to swap that around.

Also check to see if the holes for the transmission mount are existing in the C60, if they aren't, but the thickened casting ribs are there,then at least you can drill and tap them to suit (which I had to do on my C56 box to make it work).
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Old 11-03-2010, 08:15 AM   #43
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Quote:
Originally Posted by carlosh View Post
Hi, I'm researching, the C60 transmission (toyota MR2 2003-2007, 6 speed) fit in my echo 2004.
Anyone have a feedback about that?

MR2 and echo sharing some platform or parts.
Yeah I'm pretty sure the shifting arms on the MR2 C60 are on the opposite side. Also, the reason I didn't use a C60 in my conversion is because the axles used are bigger than the Echo. So you'd need custom axles too. The C160 is the one to look for.
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Old 11-03-2010, 04:06 PM   #44
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Stock Echo axles fit in a C56 or C52 as well. But to save all the stuffing around I had to do to get the C56 to work, I would just get a C160 and mod the subframe to suit like Bluevitz did.
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Old 04-13-2011, 05:12 PM   #45
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Wow, looking back, this was TOTALLY worth it. I love the ratios of the 6 speed driving around town. This was my number one on the the wish list of mods to my car, and I've had it for over a year now.
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Old 04-13-2011, 05:21 PM   #46
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They should have come from the factory like this!
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Old 04-13-2011, 07:29 PM   #47
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They only thing I'd change as a factory transmission is a 4.2FD instead of the 4.5. 1st gear is nearly useless unless you're on a hill or want to take off like there's a MAC truck barreling up your A$$.
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Old 04-14-2011, 02:20 AM   #48
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Nice write up and build. Mad props.
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Old 04-14-2011, 03:35 AM   #49
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Quote:
or want to take off like there's a MAC truck barreling up your A$$.
Oh... you mean the way I normally drive.
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Old 04-14-2011, 08:14 AM   #50
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Garm, this should be on your to do list.
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Old 09-16-2011, 05:16 PM   #51
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Dredging up this old thing again, I'm curious about why the Toyota B Puller set is required. Is that something that could be rented from an auto parts store? $1500 for the actual thing is a bit steep for a DIY project.
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Old 09-16-2011, 05:37 PM   #52
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^ good timing, I'm starting on this next week.
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Old 09-16-2011, 07:21 PM   #53
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I scored that used xB transmission from scioncrew. It's arriving Monday. Looks like at least one more trip to Harborfreight is in order.
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Old 09-16-2011, 08:02 PM   #54
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I borrowed the puller set from my local dealer because I had the option to. The puller is specifically designed for disassembling the transmission. Only thing I needed to fab up was a trio of studs. I'll take a picture. You can use any pullers you'd like, just make sure they're not going to chip the teeth on the gears.
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