Welcome to the North American Subaru Impreza Owners Club Sunday February 14, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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 07-20-2007, 09:40 PM   #1
useful
Scooby Newbie
 
Member#: 36076
Join Date: Apr 2003
Location: Bay Area
Vehicle:
2002 Impreza WRX
Pearl Red

Default Can the WRX 2002 4EAT handle an EJ257 engine?

Hello all,

In the event, that my wrx 2002 ej20 engine gets destroyed for some reason or another,

Firstly, can the STi engine even correctly connect with the 4EAT transmission?

Secondly, Can the WRX 2002 4EAT handle an EJ257 engine?

What modification if at all any, does the 4EAT transmission need to handle the power output of the USDM STi engine?

Thanks in advance to discussing this possible situation.

- U
* Registered users of the site do not see these ads.
useful is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-21-2007, 05:12 PM   #2
02redwagone
Scooby Specialist
 
Member#: 87067
Join Date: May 2005
Chapter/Region: AKIC
Location: Oregon Coast/AK
Vehicle:
02 Old but tasty
SRP

Default

Quote:
Originally Posted by useful View Post
Hello all,

In the event, that my wrx 2002 ej20 engine gets destroyed for some reason or another,

Firstly, can the STi engine even correctly connect with the 4EAT transmission?

Secondly, Can the WRX 2002 4EAT handle an EJ257 engine?

What modification if at all any, does the 4EAT transmission need to handle the power output of the USDM STi engine?

Thanks in advance to discussing this possible situation.

- U
yes and synthetic atf FTW
02redwagone is offline   Reply With Quote
Old 07-21-2007, 07:08 PM   #3
GTScoob
Scooby Specialist
 
Member#: 68602
Join Date: Aug 2004
Location: Atlanta
Vehicle:
02 STi Wagon

Default

You would need to keep the stock ECU since it can communicate with the TCU.

Run synthetic atf, get a tranny cooler, and make sure you let the tranny cool down after long spirited drives. Should last a while.
GTScoob 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
whats the best place to order an ej257 short block? felixk Private 'Wanted' Classifieds 17 08-07-2009 09:43 PM
What Can The WRX 2.0L & 5spd Tranny Handle? Cusson Transmission (AT/MT) & Driveline 19 05-26-2006 09:31 PM
How much torque/power can the USDM 6 speed handle? Corn-Picker Transmission (AT/MT) & Driveline 1 11-07-2003 11:40 PM
how much hp can the stock bottom end handle WRteXmeX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 7 09-10-2002 02:51 AM

All times are GMT -4. The time now is 05:50 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.