Welcome to the North American Subaru Impreza Owners Club Friday December 19, 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 > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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 12-08-2012, 02:39 PM   #1
TurboLegacy87
Scooby Newbie
 
Member#: 312287
Join Date: Mar 2012
Chapter/Region: Tri-State
Location: Buffalo NY
Vehicle:
2002 Impreza outback
Mbp

Default Ej22T block swap

Hey guys I have a 2002 5spd obs with the Ej253, I was wondering if I could drop in an Ej22t block with 257 internals (I know about the journal bearing) and some forged pistons and turbo the thing. Not looking to swap wrx heads etc as this is a daily and Id like to keep wiring to a minimal. My questions are

*Any piston recommendations, and what cr am I looking at with this setup.
*what em should I use, I was thinking emanage ultimate
*what injectors, 06+ wrx? Already have a walbro 255.
*Roughly what power am i looking at?
*Turbo choices, I have access to Vf11 and Td04, looking for low end power.

Sorry if this is a long post, I searched but could only find 22t block swaps with the 25d heads.
* Registered users of the site do not see these ads.
TurboLegacy87 is offline   Reply With Quote
Old 12-08-2012, 02:46 PM   #2
my name is joe
Scooby Specialist
 
Member#: 171412
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: SQC
Default

Probably better off in the motor discussion or conversion forums.
my name is joe is offline   Reply With Quote
Old 12-17-2012, 05:28 AM   #3
UK-Wagon
Scooby Specialist
 
Member#: 232430
Join Date: Dec 2009
Chapter/Region: SCIC
Location: On the Left side
Vehicle:
555 XTi
1 AW & 1 CGM

Default

Quote:
Originally Posted by TurboLegacy87 View Post
Hey guys I have a 2002 5spd obs with the Ej253, I was wondering if I could drop in an Ej22t block with 257 internals (I know about the journal bearing) and some forged pistons and turbo the thing. Not looking to swap wrx heads etc as this is a daily and Id like to keep wiring to a minimal. My questions are

*Any piston recommendations, and what cr am I looking at with this setup.
*what em should I use, I was thinking emanage ultimate
*what injectors, 06+ wrx? Already have a walbro 255.
*Roughly what power am i looking at?
*Turbo choices, I have access to Vf11 and Td04, looking for low end power.

Sorry if this is a long post, I searched but could only find 22t block swaps with the 25d heads.
02 OBS should have a 251, the 253 is found in the 2.5i equipped engines and it is much different than a 251.

*Wiseco makes pistons for the 22L with 2.5 crank and rods. Anyone else you use will have to make them custom and you will need lots of into for them that you likely cant provide. So.... your option is wiseco! Compression ratio will be odd being you will have a 97mm bore with heads made for a 99mm bore. What the final compression would be, I have no clue. But again, you can buy different compression ratio pistons for that engine, its not just 1 set ratio, they have many choices.
*EM, just have it tuned on the stock ECU, many guys out there run the AVO kit on stock ECUs and just open source tune them with a good standalone EBCS.
*Injectors.... at minimum the stock light blue 420 WRX injectors would do the job but the 06+ 565's wouldn't hurt.
*Power, no clue, nobody can tell you! Not even a ballpark. There are so many variants and options you can do. Turbo selection, cams, CR, boost level and so on and so on.
*Turbo selection, stick with smaller if you want low end. But remember you wont have much of a top end where the real power is usually made.

-Another note here, you know about the thrust piston you say. But do you also know about the bellhousing bolts and PVC lines coming off the block that are different? Not to mention the custom head gaskets you will have to have made for this?? You are honestly way better off finding a good 257 short block and just leave it stock and swap it in. That 22 block is way more headache than you would want. The 257 will hold the power you are looking for which is going to be well under 300hp.
UK-Wagon 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


All times are GMT -4. The time now is 04:19 AM.


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.