Welcome to the North American Subaru Impreza Owners Club Friday August 22, 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 09-21-2005, 07:48 PM   #1
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Subaru Stars boring out a 2.2

how far can u bore out a ej22? I was thinking about putting in some wider pistons but wasn't sure how wide i could go.
* Registered users of the site do not see these ads.
tonzo is offline   Reply With Quote
Old 09-21-2005, 07:51 PM   #2
Whiteghost 2.5
Scooby Specialist
 
Member#: 72994
Join Date: Oct 2004
Chapter/Region: South East
Location: Spring Hill FL
Vehicle:
2001 Racekor
Emerald Green

Default

is this a closed deck block or 2.2 na?


Josh
Whiteghost 2.5 is offline   Reply With Quote
Old 09-21-2005, 07:53 PM   #3
99subi
Scooby Guru
 
Member#: 78118
Join Date: Dec 2004
Chapter/Region: Tri-State
Location: Westchester NY
Vehicle:
2002 Corvette coupe
05 Legacy

Default

2.2 na guessing form his profile
99subi is offline   Reply With Quote
Old 09-21-2005, 09:50 PM   #4
JoshP
Scooby Specialist
 
Member#: 94350
Join Date: Aug 2005
Chapter/Region: NESIC
Location: S. Maine
Default

20 over, throw in a 2.5crank while you're at it
JoshP is offline   Reply With Quote
Old 09-21-2005, 09:54 PM   #5
svek
*** Banned ***
 
Member#: 82259
Join Date: Mar 2005
Chapter/Region: BAIC
Location: koledge at csus
Vehicle:
1999 impreza 2.2L
Brilliant Red <4EAT Club>

Default

theres no replacement for displacement



but this seriously wont do much of anything for you.
svek is offline   Reply With Quote
Old 09-21-2005, 09:57 PM   #6
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Subaru Stars

you're saying that if i bore them out i won't gain much?
tonzo is offline   Reply With Quote
Old 09-21-2005, 10:00 PM   #7
svek
*** Banned ***
 
Member#: 82259
Join Date: Mar 2005
Chapter/Region: BAIC
Location: koledge at csus
Vehicle:
1999 impreza 2.2L
Brilliant Red <4EAT Club>

Default

think of it like this: the ej25 is 165 hp, the ej22 is 142 or 137(depends on which version). so 300 cc (actually like 250 but whatever) difference, thats a lot of boring out it would significantly reduce the sidewall thickness making it weaker. the ej25 is also 10:1 compression ratio where the ej22 is 9.7:1 giving the rs more power.
svek is offline   Reply With Quote
Old 09-21-2005, 10:34 PM   #8
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Subaru Stars

true, the only reason i bring this is up is that I'm having a problem finding pistons for my engine. I'm planning on turboing it but before i can even think about that I have to rebuild my engine.
tonzo is offline   Reply With Quote
Old 09-21-2005, 10:39 PM   #9
svek
*** Banned ***
 
Member#: 82259
Join Date: Mar 2005
Chapter/Region: BAIC
Location: koledge at csus
Vehicle:
1999 impreza 2.2L
Brilliant Red <4EAT Club>

Default

take a look here: http://forums.nasioc.com/forums/showthread.php?t=849236

ej22t/e hybrid, the 22t pistons should be decently strong, and that motor can hold boost like a wildebeast
svek is offline   Reply With Quote
Old 09-22-2005, 12:22 AM   #10
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Subaru Stars

thanks for the help. still can't find a place that sells them but i guess ill just keep looking. id rather get new pistons if possible rather than used
tonzo is offline   Reply With Quote
Old 09-22-2005, 12:36 AM   #11
svek
*** Banned ***
 
Member#: 82259
Join Date: Mar 2005
Chapter/Region: BAIC
Location: koledge at csus
Vehicle:
1999 impreza 2.2L
Brilliant Red <4EAT Club>

Default

svek is offline   Reply With Quote
Old 09-22-2005, 11:48 AM   #12
Lethargic1
Scooby Specialist
 
Member#: 20998
Join Date: Jul 2002
Location: All Bunny, NY
Default

Quote:
Originally Posted by svek
think of it like this: the ej25 is 165 hp, the ej22 is 142 or 137(depends on which version). so 300 cc (actually like 250 but whatever) difference, thats a lot of boring out it would significantly reduce the sidewall thickness making it weaker. the ej25 is also 10:1 compression ratio where the ej22 is 9.7:1 giving the rs more power.
Svek, how do I find out if I have either the 142 or 137 ej22?
Lethargic1 is offline   Reply With Quote
Old 09-22-2005, 12:23 PM   #13
GuyLR
Scooby Specialist
 
Member#: 21811
Join Date: Jul 2002
Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
2003 WRX Wag/01 OBS
WRB and SM

Default

Quote:
Originally Posted by Lethargic1
Svek, how do I find out if I have either the 142 or 137 ej22?
Your '97 is a Phase I engine so it's 137hp.

Go here for more info> http://www.cars101.com/impreza_archive97_98.html
GuyLR is offline   Reply With Quote
Old 09-22-2005, 12:27 PM   #14
Lethargic1
Scooby Specialist
 
Member#: 20998
Join Date: Jul 2002
Location: All Bunny, NY
Default

Quote:
Originally Posted by GuyLR
Your '97 is a Phase I engine so it's 137hp.

Go here for more info> http://www.cars101.com/impreza_archive97_98.html
Thanks a bunch.
Lethargic1 is offline   Reply With Quote
Old 09-22-2005, 12:31 PM   #15
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

Crawford Performance sells new takeout Ej22T pistons from the engines they are building. They are pretty cheap, like $100 or $150 a set. What matters most is not displacement, it is about compression ratio. Using Ej22T pistons in an Ej22E will get you there.

Or we built an Ej20G with Ej22 heads and it was a fun little car. 10psi on a vf-11, non-intercooled, run with an E-manage. Closed deck, under piston oil squirters, and the ability to rev to 7500rpm. It gives you 9:1 CR, which is still fairly boost friendly. We figure it is good for around 200-210 like that. If you intercooled it, you could put 12-15psi through it and seem more like mid to high 200's. I have one of these blocks available if you are interested.

Also, one of our members, Snowjob, has a used Ej22T block on E-Bay right now...
Matt Monson is offline   Reply With Quote
Old 09-22-2005, 02:33 PM   #16
GuyLR
Scooby Specialist
 
Member#: 21811
Join Date: Jul 2002
Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
2003 WRX Wag/01 OBS
WRB and SM

Default

If you're staying normally aspirated though the EJ22T pistons will hurt instead of help because they will lower your compression. So you're kind of limited as far as increasing compression or displacement on the EJ22 without custom pistons. An EJ25 swap would be cheaper in the long run.
GuyLR is offline   Reply With Quote
Old 09-22-2005, 03:08 PM   #17
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Default

Well i'm not just adding the pistons here. I'm doing a total rebuild
tonzo is offline   Reply With Quote
Old 09-22-2005, 04:05 PM   #18
GuyLR
Scooby Specialist
 
Member#: 21811
Join Date: Jul 2002
Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
2003 WRX Wag/01 OBS
WRB and SM

Default

Quote:
Originally Posted by Matt Monson
Crawford Performance sells new takeout Ej22T pistons from the engines they are building. They are pretty cheap, like $100 or $150 a set. What matters most is not displacement, it is about compression ratio. Using Ej22T pistons in an Ej22E will get you there.

...
Matt, are you saying that EJ22T pistons in an EJ22E will raise compression? If yes, do you know how much?
GuyLR is offline   Reply With Quote
Old 09-22-2005, 04:13 PM   #19
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 GuyLR
Matt, are you saying that EJ22T pistons in an EJ22E will raise compression? If yes, do you know how much?
No. They will drop his compression to 8:1 just like an Ej22T. But he said he wanted to build an engine that will later be subject to boost. Why do it twice. I know a guy who is running an EJ22T normally aspirated in his car because he could only afford to rebuild the engine at first. Now he's saving for the turbo portion of the project, but he had to keep the car running.

Contrary to what people say, driving a low compression vehicle without boost isn't a big deal. Hell, my 914 actually comes with 7.8:1 CR stock as an NA car. I find CR is a terribly misunderstood thing...
Matt Monson is offline   Reply With Quote
Old 09-22-2005, 06:13 PM   #20
Lethargic1
Scooby Specialist
 
Member#: 20998
Join Date: Jul 2002
Location: All Bunny, NY
Default

Quote:
Originally Posted by Matt Monson
I find CR is a terribly misunderstood thing...
I find that as well. It is mostly misunderstood by me. After reading a few threads on the subject, it doesn't seem like something that really needs to be done by mostl; however, I'm still confused by the whole thing a little bit. People swapping this head for that head, it's madness I tell ya'
Lethargic1 is offline   Reply With Quote
Old 09-23-2005, 02:09 PM   #21
tonzo
Scooby Specialist
 
Member#: 94903
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: NY
Vehicle:
1996 Impreza Wagon!
Satin Black

Default

found pistons finally at a decent price. now just need to find some good rods.
tonzo is offline   Reply With Quote
Old 09-23-2005, 04:17 PM   #22
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

Check the threads with recent activity in the AFI forum. I don't remember which thread, but there is a guy selling rods with pistons for $350. He might part out just the rods...
Matt Monson 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
Boring out a 2.0 to a 2.2? reddevil Built Motor Discussion 3 08-09-2007 06:25 PM
Boreing out a 2.0???? turboimpreza07 Built Motor Discussion 7 06-15-2006 04:31 PM
Boring out the 2.5 block? 0260B4U Factory 2.5L Turbo Powertrain 7 11-05-2004 01:08 AM
More worthwhile: 2.0 re-honing or 2.2 bore-out? sick1.8t Factory 2.0L Turbo Powertrain 9 07-12-2004 01:48 AM
2.5 = bored and stroked 2.2 baldcherub Normally Aspirated Powertrain 19 06-25-2002 02:15 PM


All times are GMT -4. The time now is 03:46 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.