Welcome to the North American Subaru Impreza Owners Club Wednesday July 30, 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 09-03-2003, 02:00 PM   #1
sparselylit
Scooby Newbie
 
Member#: 42709
Join Date: Sep 2003
Chapter/Region: NWIC
Location: Eastern Washington
Vehicle:
2003 Impreza WRX
Aspen White

Question intake for 2.5 rs

can anyone give me a brand of intake for my 00 2.5 rs where the intake manifold is mounted on top of the engine to make it where i can use the hoodscoop to feed into the intake? i am having troubles locating one.
* Registered users of the site do not see these ads.
sparselylit is offline   Reply With Quote
Old 09-03-2003, 02:33 PM   #2
twizzstyle
Scooby Guru
 
Member#: 18941
Join Date: May 2002
Chapter/Region: NWIC
Location: Kenmore, Washington
Vehicle:
2005 Lotus Elise
Orange

Default

I believe it is called GravelSport....but I could be incorrect. Sweet intake though!
twizzstyle is offline   Reply With Quote
Old 09-03-2003, 02:46 PM   #3
nySulli
Scooby Specialist
 
Member#: 32617
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
2008 STi
DGM

Default

yeah, its the gravelsport intake, however a cobb CIA will work just as well if not better
nySulli is offline   Reply With Quote
Old 09-03-2003, 05:14 PM   #4
AndyM
Scooby Specialist
 
Member#: 3219
Join Date: Dec 2000
Chapter/Region: MWSOC
Location: Arlington Heights, IL USA
Vehicle:
2004 Impreza WRX STi
WR Blue Pearl

Default

I got myself a K & N cone filter on the TB with the hood scoop open, but on days it rains i switch back to my ganzflow. I get great HP up top espically when its winter outside. My cone is ice cold after I drive the car.

I just ordered this yesterday

AndyM is offline   Reply With Quote
Old 09-03-2003, 05:34 PM   #5
JewPac42
Scooby Guru
 
Member#: 23260
Join Date: Aug 2002
Chapter/Region: BAIC
Location: -=3/1 Jew Crew=-
Vehicle:
Patr ick Willis
for Rookie of the year

Default

Quote:
Originally posted by nySulli
yeah, its the gravelsport intake, however a cobb CIA will work just as well if not better
The COBB CIA? Am I being tracked by the government?

Anyhow, I agree on this the COBB CAI is the way to go.
JewPac42 is offline   Reply With Quote
Old 09-03-2003, 05:57 PM   #6
JC
NASIOC Supporter
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2006 Pontiac GTO M6
Triumph Street Triple R

Default

Quote:
Originally posted by JewPac42
The COBB CIA? Am I being tracked by the government?

Anyhow, I agree on this the COBB CAI is the way to go.
If you take apart your intake, in the filter casing with the filter out there is a little black "square." I always wondered what it was, guess it's a tracking device.
JC is online now   Reply With Quote
Old 09-03-2003, 06:09 PM   #7
sparselylit
Scooby Newbie
 
Member#: 42709
Join Date: Sep 2003
Chapter/Region: NWIC
Location: Eastern Washington
Vehicle:
2003 Impreza WRX
Aspen White

Default

alright, i will through out one more question here, if i mount the intake manifold in the position where the scoop is functional. should have i have need to worry about rain and snow and such when i am going up snowboarding. that is my biggest hesitation, i am not sure what the effects of that will be.
sparselylit is offline   Reply With Quote
Old 09-03-2003, 08:10 PM   #8
2.5RSMatt
Scooby Specialist
 
Member#: 30497
Join Date: Nov 2002
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
00 RSTi
FUK HDR

Default

save yourself the hassle and worry and just get the COBB. I've had mine a while now and had no problems and it's been great.
2.5RSMatt is offline   Reply With Quote
Old 09-03-2003, 08:12 PM   #9
nySulli
Scooby Specialist
 
Member#: 32617
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
2008 STi
DGM

Default

its not a huge issue, but i can be a problem, especially if the hood would be covered in snow, i could see snow falling in being a problem, probably safer to use the cobb, but that injen CAI looks pretty nice, just haven't heard anything on it
nySulli is offline   Reply With Quote
Old 09-03-2003, 08:17 PM   #10
sparselylit
Scooby Newbie
 
Member#: 42709
Join Date: Sep 2003
Chapter/Region: NWIC
Location: Eastern Washington
Vehicle:
2003 Impreza WRX
Aspen White

Default

alright sounds good then, i was thinkin that, and i will probably just go with either the cobb or the injen, i have heard good things about both. But what about exhausts for the 2.5rs, any recomendations?
sparselylit is offline   Reply With Quote
Old 09-03-2003, 08:18 PM   #11
BAN SUVS
Scooby Specialist
 
Member#: 28685
Join Date: Nov 2002
Location: Reno, Nevada
Vehicle:
2004 FXT 4EAT
very STi'd

Default

My first reaction- just get a Cobb. If you're lucky you might even find one used.

Second reaction- the GravelSport is cool, but you are unlikely to find any for sale, they stopped making them some time ago. You would be ok driving in light rain/mist/fog etc., but I wouldn't guarantee more than that. I took the backing plate off my hood scoop and drove through some hellacious rainstorms last winter with my snorkelectomy, although I retained the stock airbox. Snow would have almost no effect, due to it's lower density (compared to liquid water. As long as you don't get more than 100cc or so of water in it at once, you will be fine. It's unlikely you could even get 5-10cc of water in one cylinder at a time- and that would probably have little to no effect on the engine.
BAN SUVS is offline   Reply With Quote
Old 09-03-2003, 10:20 PM   #12
Dr Ken
Scooby Specialist
 
Member#: 5885
Join Date: Apr 2001
Chapter/Region: NWIC
Location: Portland Oregon
Vehicle:
2000 RS (GME)
SilvAr

Default

I don't think I've heard of anyone regretting purchasing their Cobb CAI (by the way, sparselylit, CAI = Cold Air Intake, not a government agency).

Hood scooped air: Funny how that Gravelsport intake sort of disappeared. It seemed a good design, albeit a wee bit pricey.

I really dot know how much water it takes to seize an engine... I hear from others on this site, that it's not a pretty sight and requires a sudden bolus of liquid. In terms of rain, I really think the concern of ingested rain water is very very much overrated in this site. I say this only because the aviation industry relies on wide open induction and no advisers effects, even at revs and ingested volumes comparable to ours. In fact, the aviation EJ22 and EJ25 aviation engines have no complex ingestion apparatus and have attained very high ratings as safe, reliable engines without adverse-weather-restrictions.

A used Cobb would be a good thing. A new or used Ganzflow, would also be a pretty good thing.

edit for my bad spelling

Last edited by Dr Ken; 09-04-2003 at 04:34 PM.
Dr Ken is offline   Reply With Quote
Old 09-04-2003, 01:28 AM   #13
au112
Scooby Specialist
 
Member#: 4412
Join Date: Feb 2001
Location: Port Moody BC Canada
Vehicle:
MY01 Impreza 2.5RS
BRP

Default

How much is the injen intake?

Andy
au112 is offline   Reply With Quote
Old 09-04-2003, 01:41 AM   #14
whtlegacy
Scooby Specialist
 
Member#: 38400
Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Cleveland
Vehicle:
2004 WRX Wagon
DRZ400SM

Default

I'm using a Rallitek intake on my 2.5l Legacy. From what I've heard, the Rallitek intake is one of the few (including the Cobb) that doesn't cause the engine to run too rich. It's a steal too at less than $170.
whtlegacy is offline   Reply With Quote
Old 09-04-2003, 04:56 AM   #15
au112
Scooby Specialist
 
Member#: 4412
Join Date: Feb 2001
Location: Port Moody BC Canada
Vehicle:
MY01 Impreza 2.5RS
BRP

Default

Quote:
Originally posted by whtlegacy
I'm using a Rallitek intake on my 2.5l Legacy. From what I've heard, the Rallitek intake is one of the few (including the Cobb) that doesn't cause the engine to run too rich. It's a steal too at less than $170.
Which intake causes the engine to run too rich??

Andy
au112 is offline   Reply With Quote
Old 09-04-2003, 11:58 AM   #16
whtlegacy
Scooby Specialist
 
Member#: 38400
Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Cleveland
Vehicle:
2004 WRX Wagon
DRZ400SM

Default

I've heard that the Injen is particularly bad. Sport Compact Car used one on their Impreza 2.5rs project and without S-AFC tuning there were significant and noticeable power losses in the top end of the power band. I'm sure you could find more details by searching. I know I've seen some related threads.

EDIT: Sorry, I meant to say lean in my last two posts . Either way, I meant more air, not enough fuel.
whtlegacy is offline   Reply With Quote
Old 09-04-2003, 12:07 PM   #17
Dr Ken
Scooby Specialist
 
Member#: 5885
Join Date: Apr 2001
Chapter/Region: NWIC
Location: Portland Oregon
Vehicle:
2000 RS (GME)
SilvAr

Default

Wow, I'm a little ignorant. Could someone please describe how an intake could cause such alteration of mixture (assuming a functional MAF/MAP and ECU)? Thanks.
Dr Ken is offline   Reply With Quote
Old 09-04-2003, 12:17 PM   #18
JC
NASIOC Supporter
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2006 Pontiac GTO M6
Triumph Street Triple R

Default

Quote:
Originally posted by whtlegacy
I've heard that the Injen is particularly bad. Sport Compact Car used one on their Impreza 2.5rs project and without S-AFC tuning there were significant and noticeable power losses in the top end of the power band. I'm sure you could find more details by searching. I know I've seen some related threads.

EDIT: Sorry, I meant to say lean in my last two posts . Either way, I meant more air, not enough fuel.
No. Injen didn't even make an intake back then. They were using a Minnam or a JC Sports. That's only a problem with the MAF cars anyway, the original poster has a '00 MAP RS.

As for why? I would guess the car is taking in more air and the computer is not adding enough fuel to compensate.

JC
JC is online now   Reply With Quote
Old 09-04-2003, 12:18 PM   #19
sparselylit
Scooby Newbie
 
Member#: 42709
Join Date: Sep 2003
Chapter/Region: NWIC
Location: Eastern Washington
Vehicle:
2003 Impreza WRX
Aspen White

Default

The injen runs for about 249
sparselylit is offline   Reply With Quote
Old 09-04-2003, 12:22 PM   #20
whtlegacy
Scooby Specialist
 
Member#: 38400
Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Cleveland
Vehicle:
2004 WRX Wagon
DRZ400SM

Default

JC - you make a good point. I think this only matters with MAF cars, like mine.
whtlegacy 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
Ganzflow Intake for 2.5 RS including Amsoil filter Scooby_WL Private 'For Sale' Classifieds 1 03-24-2005 12:09 AM
Air intake for 2.5 RS Papageorgio648 Normally Aspirated Powertrain 10 06-20-2004 05:11 PM
WTT: Need a stock Intake for 2.5 RS?? 03imprezaRS Private 'For Sale' Classifieds 1 05-12-2004 04:38 PM
Cheap Cold Air Intake For 2.5 RS 2000 and Up Imprezive2002 Private 'For Sale' Classifieds 1 07-25-2003 11:17 AM
Turbo and intake opinions for 2.5 rs 2 HOT 4 U Normally Aspirated with bolt-on Forced Induction Powertrain 3 05-10-2002 08:37 PM


All times are GMT -4. The time now is 02:55 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.