Welcome to the North American Subaru Impreza Owners Club Friday August 1, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 01-06-2003, 05:11 PM   #1
hobbzz
Scooby Specialist
 
Member#: 24172
Join Date: Sep 2002
Chapter/Region: South East
Location: Jacksonville, FL
Vehicle:
04 STI
JBP

Default USDM STI 6-speed into USDM WRX?

First off...I usually don't post these "what do you think it will be like when it gets here" threads that can't be answered but...I'm assuming/hoping this will work(refering to title of thread)? If so could someone expect the price to drop dramatically? A brand new '02-'03 tranny goes for about 1200 to 1800 depending on which dealer you want to rip you off . Would 2k-4k be a good guess?
* Registered users of the site do not see these ads.
hobbzz is offline   Reply With Quote
Old 01-06-2003, 05:50 PM   #2
Zahnster
Scooby Specialist
 
Member#: 2918
Join Date: Nov 2000
Location: Simi Valley, CA, USA
Vehicle:
2002 Impreza WRX
Silver Sedan

Default

The cost of the Tranny itself might be more accessible, but you've still got all of the other issues to sort out. Center Diff, front diff, half shafts, rear end, etc...
Zahnster is offline   Reply With Quote
Old 01-06-2003, 05:53 PM   #3
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

A brand new manual trans for the dealership is ~$2800. Don't know what numbers you're looking at.
8Complex is offline   Reply With Quote
Old 01-06-2003, 07:36 PM   #4
Red Rocket
Scooby Specialist
 
Member#: 10507
Join Date: Sep 2001
Vehicle:
'04 Ex STi Owner
'97 4Runner

Default

A used "junk" 5-spd tranny is around $1500.

If the STI comes in with a 3.54 rear diff like the WRX, it will be a simple drop in mod only needing the tranny, driveshaft and shift linkage.

I do hope the used price gets into the $3000 range. That would be super nice.

Kevin
Red Rocket is offline   Reply With Quote
Old 01-06-2003, 07:44 PM   #5
hobbzz
Scooby Specialist
 
Member#: 24172
Join Date: Sep 2002
Chapter/Region: South East
Location: Jacksonville, FL
Vehicle:
04 STI
JBP

Default

Anyone know what the diffs are?
hobbzz is offline   Reply With Quote
Old 01-06-2003, 08:15 PM   #6
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Quote:
Originally posted by Red Rocket
A used "junk" 5-spd tranny is around $1500.

If the STI comes in with a 3.54 rear diff like the WRX, it will be a simple drop in mod only needing the tranny, driveshaft and shift linkage.
A decent-condition (usable) used WRX 5MT is anywhere from $1000-1500 in all the junkyards that I can search through.

I was goign to correct you on the differential ratio, however I found the following on RalliSpec's site:
Quote:
Please note that US-spec. WRX models use a 1.100 transfer drive ratio with a 3.545 rear ratio and 3.900 front. Contact us for pricing on a 1.000 transfer ratio set.
8Complex is offline   Reply With Quote
Old 01-06-2003, 09:35 PM   #7
Stefx
Scooby Newbie
 
Member#: 20615
Join Date: Jun 2002
Location: Montreal, Canada
Vehicle:
2003 5sp Wagon WRX
silver

Default

Doesn't the STi MT include a front LSD?

I saw somewhere that the front, center and MT are all included in one component.

That would make the STi tranny much more expensive than that
Stefx is offline   Reply With Quote
Old 01-06-2003, 10:02 PM   #8
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

They are all in one unit. Front Suretrac diff along with the electronic center diff and all the components you need to run it... Brand new you are looking at $5k+ easy, there is a world of difference between the 5MT in the WRX and the 6MT. Right now a brand new one with a viscous center diff is around $6k from SOJ. The DCCD version is obviously more. Then you still need a new ring/pinion for the rear as well as the rear propshaft, shift linkage, etc. I would say if you want to buy a USDM 6-speed NEW you'll spend $7500.

The "Auto" mode would not work since you are undoubtedly missing the wheel sensors and whatnot to make that work. If you do make it work that's more money.

We don't have the same ABS system as the STi, which is designed to work with the DCCD. None of the cars previous to this years STi that had the DCCD had ABS. So ABS is gone.

Phil
dwx is offline   Reply With Quote
Old 01-07-2003, 08:41 PM   #9
Red Rocket
Scooby Specialist
 
Member#: 10507
Join Date: Sep 2001
Vehicle:
'04 Ex STi Owner
'97 4Runner

Default

Quote:
Originally posted by 8Complex


A decent-condition (usable) used WRX 5MT is anywhere from $1000-1500 in all the junkyards that I can search through.

By "junk" I mean junkyard....

Kevin
Red Rocket is offline   Reply With Quote
Old 01-08-2003, 10:26 AM   #10
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Quote:
Originally posted by Red Rocket
By "junk" I mean junkyard....
Ahhhh, thought you meant junk as in pre-broken. My bad.
8Complex is offline   Reply With Quote
Old 01-08-2003, 12:43 PM   #11
totoherbs
Scooby Guru
 
Member#: 7321
Join Date: Jun 2001
Chapter/Region: NESIC
Location: waltham, ma
Vehicle:
.... 122 IggPoints
Work... ahhh... so tired.

Default

Quote:
Originally posted by dwx
They are all in one unit. Front Suretrac diff along with the electronic center diff and all the components you need to run it... Brand new you are looking at $5k+ easy, there is a world of difference between the 5MT in the WRX and the 6MT. Right now a brand new one with a viscous center diff is around $6k from SOJ. The DCCD version is obviously more. Then you still need a new ring/pinion for the rear as well as the rear propshaft, shift linkage, etc. I would say if you want to buy a USDM 6-speed NEW you'll spend $7500.

The "Auto" mode would not work since you are undoubtedly missing the wheel sensors and whatnot to make that work. If you do make it work that's more money.

We don't have the same ABS system as the STi, which is designed to work with the DCCD. None of the cars previous to this years STi that had the DCCD had ABS. So ABS is gone.

Phil

so to get a sti tranny I would have to install the abs system along with the trany and its assored parts? If so it would be cheeper to get a jap spec sti tranny and throw in us gears... which im assuming are taller or is it shorter? I can never remember...
totoherbs is offline   Reply With Quote
Old 01-08-2003, 10:51 PM   #12
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

Quote:
Originally posted by totoherbs



so to get a sti tranny I would have to install the abs system along with the trany and its assored parts? If so it would be cheeper to get a jap spec sti tranny and throw in us gears... which im assuming are taller or is it shorter? I can never remember...

No one knows what the ratios of the US transmission are going to be. I think with the torque of the car it'll use longer ratios than the JDM version, but we'll have to wait and see. The only thing that makes the jap spec one cheaper is you can find used or take off ones. You can also get them without the DCCD, which would let you keep your ABS working normally.
It's a $5k+ proposition any way you look at it.

Phil
dwx is offline   Reply With Quote
Old 01-12-2003, 03:26 AM   #13
aspera
Scooby Specialist
 
Member#: 7879
Join Date: Jun 2001
Location: east of Zzyzx
Default

USDM STi appears to only come with DCCD. And it appears to be a new version of DCCD, where ABS is used. This version of ABS can apply different brake pressures side-to-side (EBD). The new STi also uses an R180 diff with a temp sensor screwed into the back. That must be needed in case all of the torque is biased to the rear in manual mode...and raced.

On the bright side it appears that it uses a 3.9 final drive ratio. I'm assuming that the rear is 3.54, but I haven't found out.


Also used is fly-by-wire throttle body. It has been suggested that a traction control/yaw control system is being built into place bit by bit.

Maybe the best hope is for an optional non-DCCD 6 speed in either the WRX or STi in years to come.
aspera is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Master swap list for 04-07 Sti 6 speed into WRX crashtke Transmission (AT/MT) & Driveline 764 Yesterday 10:31 AM
STi 6 speed into WRX swap clutch options? Bayley Subaru Conversions 13 03-30-2014 02:02 PM
04 STI 6 speed into 03 WRX and vice versa I'm Slow Transmission (AT/MT) & Driveline 14 08-10-2009 07:52 PM
'02 JDM sti 6 speed into '07 wrx auto mbelitsk Subaru Conversions 8 05-07-2009 04:42 PM
How to put a 2007 usdm sti 6 speed into my 2003 WRX InfamousDX Transmission (AT/MT) & Driveline 11 10-27-2007 12:54 AM


All times are GMT -4. The time now is 06:54 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.