Welcome to the North American Subaru Impreza Owners Club Thursday April 17, 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 > Normally Aspirated Powertrain

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 08-08-2010, 07:32 PM   #1
ej20forester
Scooby Newbie
 
Member#: 117185
Join Date: Jun 2006
Chapter/Region: RMIC
Vehicle:
2006 FXT MT
OBP

Default It's Alive: phase 2 ej22 with phase 1 dohc heads in 96 Impreza

So before I get flamed for putting together a motor that really does not make much sense, I will let you know it was done on a budget of $200 from random stuff I had, and the original motor was dead.
Car: 1996 Impreza
Block: 2001 phase II EJ22
Heads: 1997 Phase I EJ25 DOHC
Manifold: 1997 Phase I EJ25
ECU: 1996 Impreza EJ22
Sensors: Mix of 1996 EJ22 and 1997 EJ25
The build was actually very straight forward, the main issue was making sure that the wiring was all correct and the ecu had all the sensors that it was looking for. I ended up using most of the sensors and the tb off the 1996 ej22. In the end the combo runs great with no weird glitches and NO CHECK ENGINE LIGHT

The reason that I posted it is because I could not find anyone that had done such a combination. In reality it would make a very nice boost fed motor being the phase II ej22 with dohc head combo. The compression should be great for a simple turbo, or if left as is it does feel a little better than it did originally.

Enjoy, comments and questions appreciated.
* Registered users of the site do not see these ads.
ej20forester is offline   Reply With Quote
Old 08-09-2010, 11:59 AM   #2
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

Good to see people are actually doing their own thing and not relying on what others say and think should be done!!!

How does this setup feel as a daily driver? Sluggish at all, about the same as a stock EJ22, or maybe a little more pep?

Good job!
Jay Storm
Storm is offline   Reply With Quote
Old 08-09-2010, 12:08 PM   #3
motohippy
Scooby Newbie
 
Member#: 225882
Join Date: Oct 2009
Location: Central NJ
Vehicle:
2000 OBS
'88 BMW K75S

Default

Awesome. . .goes back to that whole lego thing I keep seeing on here.
motohippy is offline   Reply With Quote
Old 08-09-2010, 02:23 PM   #4
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Hello,

That's a good little engine combination you've got there. Your right, it would be a great combination to throw boost at. One of our locals ran one for years in his 2000 OBS. Used to run the equivalent of an 18g on it at 12psi all day long. Eventually he decided he wanted to find the limit and turned up the boost one night at the drag strip. It made it to about 16psi before it developed a knock. This was after about 40k mi. of daily driving and Saturday nights in the 1/4 mi.
Matt Monson is offline   Reply With Quote
Old 08-09-2010, 09:44 PM   #5
ej20forester
Scooby Newbie
 
Member#: 117185
Join Date: Jun 2006
Chapter/Region: RMIC
Vehicle:
2006 FXT MT
OBP

Default

Quote:
Originally Posted by Storm View Post
Good to see people are actually doing their own thing and not relying on what others say and think should be done!!!

How does this setup feel as a daily driver? Sluggish at all, about the same as a stock EJ22, or maybe a little more pep?

Good job!
Jay Storm
The setup feels really nice. I would compare it to the stock ej22 with maybe a little more power. In the end I am glad I did it... Thanks for the comments.
ej20forester is offline   Reply With Quote
Old 09-16-2010, 08:33 PM   #6
newfoundsubieFANATIC
Scooby Newbie
 
Member#: 219427
Join Date: Aug 2009
Chapter/Region: MWSOC
Location: indiana
Vehicle:
1995 impreza
greenish blue

Default

Nice, I was wondering how that combination would work. I had my own Frankenstein engine this spring. Got a 2.5 phase I block knowing nothing about it except it had bent valves. I have a 95 impress with a 1.8 and wanted to do an engine swap. I used the 2.5 block with my 1.8 heads. Strange yes, but I could def tell a difference. Didn't have high end power but low rpm was alot better. Threw a turbo on for the high end revs, ran great until it fried the right side of the motor. Lol should have checked out the block first but it was worth the experience.
newfoundsubieFANATIC is offline   Reply With Quote
Old 09-16-2010, 10:31 PM   #7
renyo
Scooby Newbie
 
Member#: 93577
Join Date: Aug 2005
Chapter/Region: MAIC
Location: Orlando, unfortunately
Vehicle:
98 Impreza

Default

I thought about this combination awhile ago in terms of finding a way to put dual ports on the phase II EJ22s without going back to the older 2.2 head. I was looking at keeping it N/A though and using a thin 2.5 head gasket to keep the CR (actually bump it slightly) where it was at in the original 2.2 setup.

Never actually did it though.
renyo is offline   Reply With Quote
Old 09-16-2010, 10:36 PM   #8
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

Instead of the EJ25 gasket, call Cometic and order an EJ22 gasket in a thinner makeup. Change the last three digits to -024 or -027 as they are the thickness in .xxx"

Jay
Storm is offline   Reply With Quote
Old 09-16-2010, 10:58 PM   #9
renyo
Scooby Newbie
 
Member#: 93577
Join Date: Aug 2005
Chapter/Region: MAIC
Location: Orlando, unfortunately
Vehicle:
98 Impreza

Default

Or that too..

1) I have no clue whether it's better to match the gasket to the bigger of the two bores or the smaller of the two bores. Although, I figure it'd be better to use an EJ22 one since (I would guess) it would have less fitment issues. Although if the EJ25 heads bolt up properly, there shouldn't be issues anyway.

2) I was looking at only Subaru parts. Very little thought or foresight was put into the idea, so that's probably why. Especially since I didn't have money to do it.
renyo is offline   Reply With Quote
Old 09-17-2010, 11:35 AM   #10
Matt Monson
Scooby Guru
 
Member#: 832
Join Date: Jan 2000
Chapter/Region: RMIC
Location: Teh Ghetto Garage, CO
Vehicle:
99 2.5RS, '85 911
'73 914 and 2012 BRZ

Default

Quote:
Originally Posted by newfoundsubieFANATIC View Post
Nice, I was wondering how that combination would work. I had my own Frankenstein engine this spring. Got a 2.5 phase I block knowing nothing about it except it had bent valves. I have a 95 impress with a 1.8 and wanted to do an engine swap. I used the 2.5 block with my 1.8 heads. Strange yes, but I could def tell a difference. Didn't have high end power but low rpm was alot better. Threw a turbo on for the high end revs, ran great until it fried the right side of the motor. Lol should have checked out the block first but it was worth the experience.
You fried it because you were running around 11:1 compression and then threw a turbo at it. You broke your car. It's not the block's fault you didn't do your homework before you built an engine.
Matt Monson is offline   Reply With Quote
Old 09-17-2010, 03:38 PM   #11
GEE-OTTO
Scooby Specialist
 
Member#: 201277
Join Date: Jan 2009
Chapter/Region: MAIC
Location: Arlington VA
Vehicle:
2009 Legacy GT
OBP

Default

Quote:
Originally Posted by Matt Monson View Post
You fried it because you were running around 11:1 compression and then threw a turbo at it. You broke your car. It's not the block's fault you didn't do your homework before you built an engine.

all that stuff
GEE-OTTO 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
2.5 DOHC 1996-99 swap with a phase 2 EJ22 engine? serious Subaru Conversions 19 01-08-2010 11:50 PM
Headgasket advice for phase 2 block with DOHC heads ciper Subaru Conversions 1 11-07-2008 04:53 PM
1998 phase 1 EJ25 into 2000 phase 2 EJ22 OBS. s'ko Subaru Conversions 0 04-14-2008 12:20 PM
ej22T with phase 1 DOHC heads YaZahX Normally Aspirated with bolt-on Forced Induction Powertrain 4 04-09-2003 11:03 PM
phase 1 DOHC heads or phase 2 DOHC heads.. whats better to use? YaZahX Normally Aspirated with bolt-on Forced Induction Powertrain 11 03-05-2003 06:16 PM


All times are GMT -4. The time now is 09:40 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.