Welcome to the North American Subaru Impreza Owners Club Thursday July 2, 2015
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 2.0L Turbo Powertrain (EJ Series Factory 2.0L 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 08-21-2008, 12:50 PM   #1
stusha
Scooby Newbie
 
Member#: 94862
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: Champlain NY, Montreal QC
Vehicle:
05 WRX WRB Stg2
2009 STI Stg 2

Default Replacing head gaskets OEM or COMETIC 1mm or 1.3mm

Hey Guy's...

Im replacing my head gaskets on my 05 wrx. im running stage 2 XPT. Should i get oem's or dish out a few more buck's for cometic's, the cometic's are avalible in 1mm or 1.3mm witch ones would be the best for my application.
& should i replace the head stud'd or re use my oem's...
Thanks for all your help.

PS I am repacing my head gaskets because i am putting in a new EJ20 Shortblock (i Spun a rod bearing)...**** happens write....
* Registered users of the site do not see these ads.

Last edited by stusha; 08-21-2008 at 01:00 PM.
stusha is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-21-2008, 05:01 PM   #2
bryancregger
Scooby Newbie
 
Member#: 174103
Join Date: Mar 2008
Chapter/Region: RMIC
Location: Wyoming
Vehicle:
2002 Impreza WRX
Midnight

Default

well thicker head gaskets will lower your compression ratio i believe and if your only stage 2 there is no reason why OEM won't work.. its not like your throwing 30 lbs of boost at your engine. I went with OEM and mine are fine
bryancregger is offline   Reply With Quote
Old 08-21-2008, 06:27 PM   #3
Cocoa Beach Bum
Scooby Specialist
 
Member#: 17355
Join Date: Apr 2002
Default

Cocoa Beach Bum is offline   Reply With Quote
Old 08-21-2008, 07:08 PM   #4
GeneralTJI
Scooby Specialist
 
Member#: 152680
Join Date: Jun 2007
Location: EVO 8 built 2.4L
Vehicle:
I Parted out WRX
for my Pilots License :)

Default

You can re-use the head studs... It's never a bad idea to get new ones though... or go ahead and get some ARP studs.. they are the best. But many have re-used the head bolts and been ok....
GeneralTJI is offline   Reply With Quote
Old 08-21-2008, 07:47 PM   #5
Cocoa Beach Bum
Scooby Specialist
 
Member#: 17355
Join Date: Apr 2002
Default

Quote:
Originally Posted by GeneralTJI View Post
You can re-use the head studs... It's never a bad idea to get new ones though... or go ahead and get some ARP studs.. they are the best. But many have re-used the head bolts and been ok....
You seem to be answering a question which wasn't asked. His question was about gaskets, not studs.
Cocoa Beach Bum is offline   Reply With Quote
Old 08-21-2008, 07:49 PM   #6
stusha
Scooby Newbie
 
Member#: 94862
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: Champlain NY, Montreal QC
Vehicle:
05 WRX WRB Stg2
2009 STI Stg 2

Default head stud

I asked about the head studs too. is it safe to re use my old ones or should i get new oem's or ARP's
stusha is offline   Reply With Quote
Old 08-21-2008, 07:54 PM   #7
Clark Turner
NASIOC Vendor
 
Member#: 178047
Join Date: Apr 2008
Chapter/Region: SWIC
Location: AZ
Vehicle:
02 WRX STI Spec C
Black

Default

Since you staying with the 2.0 block, use the OEM headgasket for the motor. Never reuse trq to yeild head bolts. Throw them out. I suggest you buy a set of ARP head studs. Use the ARP lubricant and read the instructions. Use the same pattern but trq all to a low 20 or 30 ft lbs. Come back and increase them to 50. Then 70. A couple hours later trq them full out to 80 to 82 lbs. I would then wait 12 hours at least and then come back and do a final trq on them.

Everyone has a system and even the final number is debated. I have used 82ft lbs for 5 years with not one single failure. Its important that you wait over night and come back. I normaly find one or two that will take another bit before the trq wrench clicks.

Clark
Clark Turner is offline   Reply With Quote
Old 08-21-2008, 09:02 PM   #8
xWrx
*** Banned ***
 
Member#: 116387
Join Date: May 2006
Chapter/Region: MWSOC
Location: Kalamazoo, MI
Vehicle:
02 Straight pimpin
WRB

Default

good info clark
xWrx is offline   Reply With Quote
Old 08-21-2008, 09:42 PM   #9
stusha
Scooby Newbie
 
Member#: 94862
Join Date: Aug 2005
Chapter/Region: Tri-State
Location: Champlain NY, Montreal QC
Vehicle:
05 WRX WRB Stg2
2009 STI Stg 2

Default

Should i have my heads planed or re surfaced ?????? what about Hondata intake gaskets are they any good???

Once again thanks for all your help!!!!
stusha is offline   Reply With Quote
Old 08-22-2008, 01:12 PM   #10
Clark Turner
NASIOC Vendor
 
Member#: 178047
Join Date: Apr 2008
Chapter/Region: SWIC
Location: AZ
Vehicle:
02 WRX STI Spec C
Black

Default

Dont surface the heads unless they are warped. Check for flatness. I have never used the hondata gaskets. Grimspeed makes some that people seem to like.

CLark
Clark Turner 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
closed subydude02 Engine/Power/Exhaust 41 08-11-2010 08:29 AM
2.2 heads on a 2.0 block chong74 Subaru Conversions 24 06-06-2010 03:41 AM
04 WRX Interior for 02/03 Interior or WRX TR Interior cartwheels4amile SCIC Private Classifieds 5 06-04-2010 11:53 AM
need help with a/c compressor replacement sen7inel Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 0 06-04-2010 08:53 AM
FS : Innovate LC-1 Wideband with XD-Gauge alcoolaid VIC Private Classifieds 0 06-04-2010 04:12 AM


All times are GMT -4. The time now is 06:39 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.