Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Pre-2002 Factory Turbo 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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 04-28-2005, 01:13 PM   #1
SBW
Scooby Specialist
 
Member#: 38469
Join Date: Jun 2003
Chapter/Region: NESIC
Vehicle:
07 LGT spec-b
Crystal Grey Metallic

Default which way do cp pistons go into ej22t

The wrist pin seems to have an offset and theres a difference in the skirt, is what Im being told anyway.

The machine shop my motor is at is waiting to hear back from me on which way these pistons go in... No word back from axis yet or CP. Anyone know?
* Registered users of the site do not see these ads.
SBW is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-28-2005, 03:35 PM   #2
totoherbs
Scooby Guru
 
Member#: 7321
Join Date: Jun 2001
Chapter/Region: NESIC
Location: waltham, ma
Vehicle:
.... 122 IggPoints
Work... ahhh... so tired.

Default

Find an FSM, but more importantly you should realy think twice about using a shop that doesnt know how the motor goes together.
totoherbs is offline   Reply With Quote
Old 04-28-2005, 04:13 PM   #3
SBW
Scooby Specialist
 
Member#: 38469
Join Date: Jun 2003
Chapter/Region: NESIC
Vehicle:
07 LGT spec-b
Crystal Grey Metallic

Default

The factory service manual doesn't have anything on which side goes on the intake or exhaust for cp pistons. edit:
figured it out.

Last edited by SBW; 04-28-2005 at 09:58 PM. Reason: im all set
SBW is offline   Reply With Quote
Old 04-29-2005, 09:26 AM   #4
MY99 2.5GT
Scooby Specialist
 
Member#: 5030
Join Date: Mar 2001
Chapter/Region: MAIC
Location: Martinsburg, WV, USA
Vehicle:
1999 Legacy 2.5GT
19 Audi RS3, 13 Armada

Default

CP should be able to tell you what the distinguishing markings on the pistons are that tell you where they go and what direction they should face.

Stock pistons will have an "R" for right and an arrow pointing in the direction that faces front.

http://www.angelfire.com/md3/91turbo...ackground.html

ej22T piston (right) vs. N/A ej22 piston (left)

Last edited by MY99 2.5GT; 04-29-2005 at 09:54 AM.
MY99 2.5GT is offline   Reply With Quote
Old 04-29-2005, 10:15 AM   #5
SBW
Scooby Specialist
 
Member#: 38469
Join Date: Jun 2003
Chapter/Region: NESIC
Vehicle:
07 LGT spec-b
Crystal Grey Metallic

Default

I did check with CP, and they referenced the job # on the box of pistons, and they were saying there was no offset for the wrist pin and the pistons were asymmetrical.

The machine shop found a slight offset I guess, which Im imagining must have been within the tolerance. Even the machinist figured they could go either way, but he wanted to double check to be sure. I figured someone on here would definitely know. And Ron at Axis confirmed this anyway. Thanks for the information though.
SBW is offline   Reply With Quote
Old 04-29-2005, 10:23 AM   #6
MY99 2.5GT
Scooby Specialist
 
Member#: 5030
Join Date: Mar 2001
Chapter/Region: MAIC
Location: Martinsburg, WV, USA
Vehicle:
1999 Legacy 2.5GT
19 Audi RS3, 13 Armada

Default

If you went with CP I assume they are custom pistons not shelf stock. What compression did you go with and how much did you pay?

I'm looking at Wiseco Forged 8.5:1 shelf stock for $499.

Brad
MY99 2.5GT is offline   Reply With Quote
Old 04-29-2005, 10:39 AM   #7
SBW
Scooby Specialist
 
Member#: 38469
Join Date: Jun 2003
Chapter/Region: NESIC
Vehicle:
07 LGT spec-b
Crystal Grey Metallic

Default

Quote:
Originally Posted by MY99 2.5GT
If you went with CP I assume they are custom pistons not shelf stock. What compression did you go with and how much did you pay?

I'm looking at Wiseco Forged 8.5:1 shelf stock for $499.

Brad
its an axis block, but with eagle rods. cp pistons 8.5 Compression, and they are $649 a set for 4 w/ pins and rings.
SBW 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
STI shortblock swap: Do CP Pistons lower compression? jefersun Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 2 04-24-2005 10:24 PM
STi shortblock Swap: Do CP Pistons lower compression? jefersun Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 1 04-24-2005 09:27 PM
Which way do these rotors go? Honkey3k Brakes, Steering & Suspension 9 01-14-2005 02:34 PM
which way do slotted rotors go wrx320 Brakes, Steering & Suspension 4 12-30-2002 11:58 AM
which way do you guys face your subs? inpreza kid Car Audio, Video & Security 16 03-09-2001 09:04 AM

All times are GMT -4. The time now is 10:33 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.