Welcome to the North American Subaru Impreza Owners Club Saturday July 12, 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 01-03-2008, 04:25 PM   #1
fasterthanrayswrx
Scooby Specialist
 
Member#: 48672
Join Date: Nov 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2005 Subaru
WRX

Default California spec 2.2 engine?

Hi,
I have a CA spec engine in my 99 Legacy and was wondering what's the difference. The intake is different I see, but what else?
If I were to get an intake would any one work?
Finally does my car have unequal length headers?
Thanks
* Registered users of the site do not see these ads.
fasterthanrayswrx is offline   Reply With Quote
Old 01-03-2008, 05:21 PM   #2
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

Your car has an EGR valve. That's mostly it. All the exhaust manifolds are pretty much the same, and they are not EL. You can get an intake and the single port Borla headers...
Matt Monson is offline   Reply With Quote
Old 01-03-2008, 11:31 PM   #3
PhilSine
Scooby Specialist
 
Member#: 130489
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Superior, WI
Vehicle:
02 WRX Wagon (WRB)
98 OBS-T, 91 Legacy SS

Default

By my observation, the OE exhaust manifold is equal length. At least it is for the single port OBS EJ22. I can't speak for the Legacy's. Keep in mind that you have an exhaust manifold and that is not to be confused with a header.

Headers are higher performance exhaust manifolds that are usually mandrel bent, and much larger than OE. The OE exhaust manifold is about 1 3/8" on the primarues and perhaps less) and 1.5" on the collector where a Borla single port header is 1.75" on the primaries and 2" on the collector.

I'm going from memory on the OE specs but regardless of accuracy, it's safe to say that the OE manifold is small.
PhilSine is offline   Reply With Quote
Old 01-07-2008, 01:59 PM   #4
fasterthanrayswrx
Scooby Specialist
 
Member#: 48672
Join Date: Nov 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2005 Subaru
WRX

Default

okay, that clears things up.
Honestly, I want my car to sound like a WRX. I miss that boxer rumble from my WRX/STi.
Would just getting a muffler/catback do the trick or would I need some sort of exhaust mani to do it? I thought I remember someone mentioning the Borla would do it.
fasterthanrayswrx is offline   Reply With Quote
Old 01-07-2008, 03:39 PM   #5
PhilSine
Scooby Specialist
 
Member#: 130489
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Superior, WI
Vehicle:
02 WRX Wagon (WRB)
98 OBS-T, 91 Legacy SS

Default

You need a manifold to do it.

The boxer rumble comes from an unequal length header.

I am in the process of making a run of Borla replica headers that are stronger but not stainless steel. So, it will rust away in 10 years unless you have it powder coated and then it will last 15 years.

Borla stopped making headers for the single port EJ22 so if you can find a Borla header, it will likely be used or if new, over $500. I'll be charging $300 plus shipping for mine and it will include new exhaust gaskets for both ends. Borlas didn't include gaskets so you'd be saving $25 there. Also, my headers will be 2" on the primaries and 2.5" on the collector.

I have a thread started for interest and from here, it's getting pretty close to production. Hopefully by the end of January but nohting for certain. The hardest part has been getting supplies together, especially Subaru exhaust flanges. That has been a lengthy process and the one that is still holding things up. Now I'm simply waiting on the UPS guy to show with my cylinder heads I bough for my mock-up.
PhilSine is offline   Reply With Quote
Old 01-25-2008, 09:50 PM   #6
alejo
Scooby Newbie
 
Member#: 170081
Join Date: Jan 2008
Location: Tegucigalpa
Vehicle:
2004 2.5RS
blue

Default

Is it really worth it to spend that much in headers? I mean, is the gain really good in sound and performance? Now, is there any way someone can do it any given sunday?
alejo is offline   Reply With Quote
Old 01-26-2008, 12:56 AM   #7
Calamity Jesus
Scooby Guru
 
Member#: 44501
Join Date: Oct 2003
Chapter/Region: South East
Location: in a minefield of caddishness.
Vehicle:
1984 "Skeletor from
"He-Man"

Default

Cali spec cars use a MAP sensor (like the '00-'04) instead of the MAF, IIRC.
Calamity Jesus is offline   Reply With Quote
Old 01-26-2008, 03:02 AM   #8
Subyroo2.5
Scooby Specialist
 
Member#: 168129
Join Date: Jan 2008
Chapter/Region: SCIC
Location: High Desert
Vehicle:
2013 WRX
WRBP

Default

i had a 96 wagon. it was a 5 speed cali version. it had no egr... NoX was taken care of by valve overlap.
Subyroo2.5 is offline   Reply With Quote
Old 03-03-2008, 09:55 PM   #9
alejo
Scooby Newbie
 
Member#: 170081
Join Date: Jan 2008
Location: Tegucigalpa
Vehicle:
2004 2.5RS
blue

Default

does anyone have a picture of a single port header? I still don't understand how can you fit a 2" tube on the primaries? does that mean that the primaries will be right "inside" the headers? any help would be appreciated, thanx a lot
alejo 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
2001 Spec C 2.0 Engine and transmission sparspecker Engine/Power/Exhaust 1 10-24-2009 10:36 PM
Need DOHC 2.5L engine specs for final project t3hWIT Normally Aspirated Powertrain 10 04-27-2008 06:31 PM
i need 2.0 engine specs ktmbass85 Built Motor Discussion 3 12-12-2006 08:43 AM
California spec ECU pinouts? Poppa smurf Normally Aspirated Powertrain 1 03-11-2002 12:06 AM
California Spec. Specs? Revision Technical Forum Archive 10 05-10-2000 10:41 PM


All times are GMT -4. The time now is 05:48 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.