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Old 06-15-2003, 12:39 AM   #1
206legacy
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Member#: 38212
Join Date: Jun 2003
Location: Seattle
Vehicle:
1991 legacy, 84 gti
blue, gti is silver/rusty

Default 4eat to 5mt...

I'm pondering doing this swap in my 1991 legacy. anyone on here done it? is it even worth it? my cars in decent shape, I just hate the slushbox, witch may or may not be needing a rebuild. it is slow to shift into reverse not just from park, but from drive as well. i digress... is it worth it to do this apparently pretty involved swap to a car that is pretty common to begiin with? I've never done something of this magnitude, but I'm not afraid to try.
thanks for any input,
jeremy
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Old 06-15-2003, 10:26 AM   #2
Kha0S
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Join Date: Jul 2001
Chapter/Region: NESIC
Location: Grantham, NH
Vehicle:
2011 WRX (DGM 5D)
2002 WRX/2003 SVTF

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I just finished swapping a 1993 Legacy Turbo TY752VJ1AA transmission into a 2002 4EAT WRX... but I don't have the time to document it right now... I'm going to go drive it!



/Andrew
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Old 06-15-2003, 09:09 PM   #3
subiekid
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Join Date: Oct 2002
Chapter/Region: NWIC
Location: Send help, stuck in internet!
Vehicle:
1995 Legacy TURBO!!!
EJ22T/TEC3 & '12 Civic

Default

check this out. its a big job

http://www.shimmysideways.com/tranny_swap.htm
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Old 06-15-2003, 09:41 PM   #4
Sean
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Location: Trunkmonkey Racing
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762 PGT Impreza L,
Silverado EXT, Yaris

Default

Kha0S, mad-dog999, IggDawg, webkris, Mr. The Plague and a few other NESIC guys managed to do this swap in six days over the course of five weeks (one to two days per week). The total cost of the swap was around $1k due to the fact that most of the parts came from other NESIC guys who had spare parts hanging around and connections with parts guys at both Manchester and Exeter Subaru in NH.

The transmission that was dropped in place was a 1993 Legacy Turbo transmission (3.9). The stock 4.11 rear diff was converted to 3.9 and mated up to the new prop shaft. Electronics were faked by Kha0S making vague coming together motions with his hands as he used wiring harness voodoo. The ECU is still pissed that it can't find the TCU, but so be it.

But yeah...definitely worth the conversion if you have a damaged auto...just expect to be without your car for a while. It's not a bolt in replacement.

I'm sure Kha0S will have more to add when he does the full writeup...I'm just happy to have been a small part of the project.

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Old 06-15-2003, 09:51 PM   #5
subiekid
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1995 Legacy TURBO!!!
EJ22T/TEC3 & '12 Civic

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go here

go to the drivetrain forum. you will find all you need to know. you will even know how to make the ecu happy.
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Old 06-16-2003, 04:13 PM   #6
206legacy
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Join Date: Jun 2003
Location: Seattle
Vehicle:
1991 legacy, 84 gti
blue, gti is silver/rusty

Default cable clutch

would I be better off looking for a cable clutch tranny? if so, does a 4.11 diff calbe tranny exist, and what would the donor car be? converting to 3.9 rear dif is an option also...
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Old 06-16-2003, 07:26 PM   #7
subiekid
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EJ22T/TEC3 & '12 Civic

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you could find a 90 to 94 legacy, but not a turbo. the n/a legacy from 90 to 94 had a 4.11 and a cable clutch. the turbo legacy had a 3.9 with hydro clutch. a hydrolic clutch is much better and easier to use, but is harder to put in. i am going to do this but use a trany out of a 99 rs. the 99 rs had 4.11 gears. 4.11 gears will be faster off the light but will rev higher at high speeds. i have a turbo on my 95 legacy so with all that power it would be best to get a hydrolic clutch. if you are going to be using the car for day to day driving then a hydrolic clutch is a must.
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Old 06-17-2003, 03:31 PM   #8
206legacy
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Join Date: Jun 2003
Location: Seattle
Vehicle:
1991 legacy, 84 gti
blue, gti is silver/rusty

Default

Quote:
Originally posted by subiekid
you could find a 90 to 94 legacy, but not a turbo. the n/a legacy from 90 to 94 had a 4.11 and a cable clutch. the turbo legacy had a 3.9 with hydro clutch. a hydrolic clutch is much better and easier to use, but is harder to put in. i am going to do this but use a trany out of a 99 rs. the 99 rs had 4.11 gears. 4.11 gears will be faster off the light but will rev higher at high speeds. i have a turbo on my 95 legacy so with all that power it would be best to get a hydrolic clutch. if you are going to be using the car for day to day driving then a hydrolic clutch is a must.
so the 99 rs has 4.11 and hydro clutchcan this bolt to a stick legacy drive shaft? how about cv's?
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Old 06-18-2003, 12:38 AM   #9
subiekid
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Member#: 25516
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Send help, stuck in internet!
Vehicle:
1995 Legacy TURBO!!!
EJ22T/TEC3 & '12 Civic

Default

not sure if the drive shaft works. i think you need a longer one or maybe a shorter one. cant remember. contact the guy on that site i posted above. he used a 98 99 rs tranny.
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Old 06-19-2003, 10:41 AM   #10
garface
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MY01 RS Both Silverthorne

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You need a longer shaft because the auto is longer which makes the auto shaft shorter.
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Old 06-19-2003, 07:37 PM   #11
206legacy
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Member#: 38212
Join Date: Jun 2003
Location: Seattle
Vehicle:
1991 legacy, 84 gti
blue, gti is silver/rusty

Default

Quote:
Originally posted by garface
You need a longer shaft because the auto is longer which makes the auto shaft shorter.
yeah, I figured the auto d/s would'nt work, waht I was wondering was, would the d/s from a stick legacy work? are the 5mt's length the same impreza to legacy?
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