Welcome to the North American Subaru Impreza Owners Club Wednesday July 30, 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 > Subaru Conversions

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 01-15-2006, 11:48 AM   #1
pillarguy17
Scooby Newbie
 
Member#: 103392
Join Date: Dec 2005
Location: Houston
Question replacing blown 03 wrx motor with 04 motor (plug and play?)

My 03 wrx motor (mt) is blown and I have access to a 04 wrx motor (mt)sitting in a salvage car. What is the best way to swap these motors? Just replace the block and head, or the entire motor, do i need to change the wiring harnesses, and what about the computer, do I use the 04 or 03? Does the 04 motor have additional sensors? I want the car to behave perfectly, and I want to eventually run a cobb accessport on the ecu. Any feedback/help on this swap would help.



Thanks
* Registered users of the site do not see these ads.
pillarguy17 is offline   Reply With Quote
Old 01-16-2006, 12:51 AM   #2
taeyax82
Scooby Specialist
 
Member#: 49465
Join Date: Nov 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
03 Bugeye Wagon
Red

Default

its all depends on you.. do you want to run on 04 ecu or 03 ecu? i don't see the difference between the two.. swap the whole drivetrain out.. including the tranny.. i think they're just tuned differently.. check the wiring on both years.. and check both of them have all the same sensors.. before you make a move.. if they're the same.. just unbolt the mounts and swap out the whole thing.. good luck..
taeyax82 is offline   Reply With Quote
Old 01-16-2006, 12:58 AM   #3
swapstar
*** Banned ***
 
Member#: 102779
Join Date: Dec 2005
Location: JDM land filling a container
Vehicle:
1998 PM if u need
JDM bits.....

Default

gearboxes should be identical. run the 04 gearbox only if the 03 is toast.
motor should be close to pnp, if th harness isnt, just swap over the engine harness from the 03.
swapstar 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
Replace 03 WRX Turbo with 04 Forester Turbo? tubmyster Factory 2.0L Turbo Powertrain 6 04-10-2010 01:35 AM
replacing blown 03 wrx motor with 04 motor pillarguy17 Factory 2.0L Turbo Powertrain 6 01-26-2006 12:38 AM
04-05 Impreza WRX STI GP Moto Unichip Plug and Play Engine Management System Inprogress Private 'For Sale' Classifieds 33 08-11-2005 03:17 PM
FS: STi 04/05 Plug and Play XEDE blinguskahn Private 'For Sale' Classifieds 7 12-15-2004 02:19 PM
If you have an 02-03 WRX sedan with Tein S-Techs and 18's click here please! Dewey 8d Brakes, Steering & Suspension 2 03-28-2004 05:17 AM


All times are GMT -4. The time now is 02:53 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.