Welcome to the North American Subaru Impreza Owners Club Wednesday August 20, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Mid Atlantic Impreza Club
Mid Atlantic Impreza Club Forum sponsored by Annapolis Subaru
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 Chapters > Mid Atlantic Impreza Club -- MAIC

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 10-29-2005, 12:05 PM   #1
BigSlick
Scooby Specialist
 
Member#: 79919
Join Date: Jan 2005
Chapter/Region: MAIC
Location: Bristow
Vehicle:
2014 STI Hatch
SWP

Default UPDATE quick ?, swaping WRX IC for STi IC

Anything I need to be aware of or do before doing this. If most of you all don't know yet, I am still learning. Why am I swaping them, well I got a great price on it and it looks good, hehehe, anyways about to do it just making sure there is nothing that I am not aware about before doing this.
Thanks.

I am sure you all can do this in 5 min but may take me awhile
* Registered users of the site do not see these ads.

Last edited by BigSlick; 10-29-2005 at 04:24 PM.
BigSlick is offline   Reply With Quote
Old 10-29-2005, 12:23 PM   #2
84SubaruDL
Scooby Specialist
 
Member#: 42179
Join Date: Aug 2003
Chapter/Region: MAIC
Location: Middle of Far
Vehicle:
SON! F 22's i roll
on 33" 12 fity SON!!!

Default

keep an eye on your egt's the tend to get high with larger intercoolers
84SubaruDL is offline   Reply With Quote
Old 10-29-2005, 01:07 PM   #3
Bundyboyz
Scooby Specialist
 
Member#: 32764
Join Date: Feb 2003
Chapter/Region: MAIC
Vehicle:
2003 WRX with 91K
New Motor & Paint WRB

Default

Quote:
Originally Posted by 84SubaruDL
keep an eye on your egt's the tend to get high with larger intercoolers
what? why? Obviously your going to have higher EGT's if you ran no intercooler. (textbook science) So how does cooling the charge even better increase EGT's?
Bundyboyz is offline   Reply With Quote
Old 10-29-2005, 02:32 PM   #4
MD04WRX
Scooby Guru
 
Member#: 72891
Join Date: Oct 2004
Chapter/Region: MAIC
Location: In the blue & hating it!
Vehicle:
2014 Molten ST
98 2.5GT -2014 XV

Subaru Banner

If it's a USDM STi intercooler you should get longer intercooler hoses. I tried that swap with the factory hoses and could not get it to fit correctly. The mount brackets are the same but the mounts on the intercooler are in a different place. There is a thread about the problem and all the info you need to get the right hoses. Some people have been able to make it work with out getting the longer hoses but it's a PITA. I was only able to get one of the mount tabs to line up and then you could see the intercooler was setting on an angle. I sold mine and got a JDM STi Iintercooler and it fit perfect. I'll post the link if I can find it.
MD04WRX is online now   Reply With Quote
Old 10-29-2005, 02:38 PM   #5
MD04WRX
Scooby Guru
 
Member#: 72891
Join Date: Oct 2004
Chapter/Region: MAIC
Location: In the blue & hating it!
Vehicle:
2014 Molten ST
98 2.5GT -2014 XV

Subaru Banner

Info from post noted above:

I recently purchased an 05 USDM STI intercooler for my 05 WRX. Once again, I confirmed it was NOT a direct bolt-on as covered many times. I was fully aware of this and the mounting option I believe pioneered by BIGSKYWRX as seen on http://www.clubwrx.net/forums/showthread.php?t=51348. Even though welding new bolt holes in the factory mounts (same for WRX & STI) wouldn't be terribly difficult, I decided to see if could utilize factory mounts and correct the STI's throttle body and VF39 turbo positioning differences to the WRX TB and turbo with a new coupler and elbow off the solid y-pipe.
It works so far. The TB to I/C coupler is a Greddy ~65mm ID, 75mm long silicone piece I purchased for less the $10. The stock length was ~47mm. The elbow off the hard y-pipe to my stock turbo is a Turbonetic nitrile elbow 2" x 90' (P/N 30208). About 10mm was cut off one end of the elbow to fit.

Since this mounting location makes the intercooler sit closer to the firewall (same location in an STI), I had to bend the hard A/C lines for clearance.
MD04WRX is online now   Reply With Quote
Old 10-29-2005, 03:14 PM   #6
rogue
Star-Lord
Super Moderator
 
Member#: 7977
Join Date: Jul 2001
Chapter/Region: MAIC
Location: Sterling, VA
Vehicle:
100% Abuse

Default

Quote:
Originally Posted by Bundyboyz
what? why? Obviously your going to have higher EGT's if you ran no intercooler. (textbook science) So how does cooling the charge even better increase EGT's?
cooler air charge = more air = lean condition = high EGTs
rogue is offline   Reply With Quote
Old 10-29-2005, 03:52 PM   #7
BigSlick
Scooby Specialist
 
Member#: 79919
Join Date: Jan 2005
Chapter/Region: MAIC
Location: Bristow
Vehicle:
2014 STI Hatch
SWP

Default

Ok SO, after 2.5 hours which to most of you would of taken maybe 30 min, I got it in all by myself, well with my friend but he doesn know much, infact I know more than him which is pretty bad. Anyways, I got it all to fit just fine without having to get anything else, I took it for a test drive, nothing new, felt fine, no engine light or anything (not sure if I would even get such a warning) and everything seems to be ok. So either I did it just right, or tomorrow I may need a ride.
BigSlick is offline   Reply With Quote
Old 10-29-2005, 04:04 PM   #8
Bundyboyz
Scooby Specialist
 
Member#: 32764
Join Date: Feb 2003
Chapter/Region: MAIC
Vehicle:
2003 WRX with 91K
New Motor & Paint WRB

Default

Quote:
Originally Posted by rogue
cooler air charge = more air = lean condition = high EGTs
I disagree... MAF sensor reads how much air is comming in... no matter how hot the turbo is or how cold the intercooler is it's still the same amount of air... just because something gets cold doesn't mean there is more of it.

edit: the real question with bigger intercoolers and for front mounts... the extra pipping as well is pressure drop... I'll do some reading on pressure drop. I'd imagine you'd see less air richer conditions from pressure drop but only very very marginal.

I should be clear that I'm talking from a math perspective... then end user and even monitoring of these parameters would be very minimal.

Last edited by Bundyboyz; 10-29-2005 at 04:11 PM.
Bundyboyz is offline   Reply With Quote
Old 11-01-2005, 03:34 PM   #9
Bundyboyz
Scooby Specialist
 
Member#: 32764
Join Date: Feb 2003
Chapter/Region: MAIC
Vehicle:
2003 WRX with 91K
New Motor & Paint WRB

Default

bumpers... I'm curious if I'm right
Bundyboyz is offline   Reply With Quote
Old 11-01-2005, 03:48 PM   #10
ButtDyno
Street's closed, pizza boy
 
Member#: 17301
Join Date: Apr 2002
Chapter/Region: MAIC
Location: Why do they always say the Evo
Vehicle:
is the "dark side"
06 Evo #7 STU, 03 IS300

Default

Slick: do you have gauges? Which ones?
ButtDyno is offline   Reply With Quote
Old 11-01-2005, 04:22 PM   #11
rogue
Star-Lord
Super Moderator
 
Member#: 7977
Join Date: Jul 2001
Chapter/Region: MAIC
Location: Sterling, VA
Vehicle:
100% Abuse

Default

Quote:
Originally Posted by Bundyboyz
I disagree... MAF sensor reads how much air is comming in... no matter how hot the turbo is or how cold the intercooler is it's still the same amount of air... just because something gets cold doesn't mean there is more of it.

edit: the real question with bigger intercoolers and for front mounts... the extra pipping as well is pressure drop... I'll do some reading on pressure drop. I'd imagine you'd see less air richer conditions from pressure drop but only very very marginal.

I should be clear that I'm talking from a math perspective... then end user and even monitoring of these parameters would be very minimal.
unless you're near maxing out the injectors, or the map you're running isn't planned for the increased flow, or a dozen other things...

it can happen.
rogue is offline   Reply With Quote
Old 11-01-2005, 05:17 PM   #12
BigSlick
Scooby Specialist
 
Member#: 79919
Join Date: Jan 2005
Chapter/Region: MAIC
Location: Bristow
Vehicle:
2014 STI Hatch
SWP

Default

ButtDyno, no gauges, if you are talking about the boost gauge, oil, etc.. I do want a boost gauge just didn't feel like paying 300 from Subaru.
BigSlick is offline   Reply With Quote
Old 11-01-2005, 10:04 PM   #13
CaptinMorgan97
Scooby Specialist
 
Member#: 57634
Join Date: Mar 2004
Chapter/Region: MAIC
Location: Kensington, Maryland
Vehicle:
2005 STI

Default

Ill sell you mine all. You dont even have to change the dash part, well just swap it :-P.

And this time I can help with the install :P
CaptinMorgan97 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
WTT 05 wrx hoodscoop for STI hoodscoop vu-tang SCIC Private Classifieds 2 06-08-2010 12:25 AM
Routing for STi IC spray hose? WRXRgr Factory 2.5L Turbo Powertrain 6 09-19-2005 05:07 AM
so cal: 05 wrx turbo and Sti Ic,vf22 P&P and more sil&duckswrx&legacy Private 'For Sale' Classifieds 56 03-21-2005 02:53 PM
Wiring for STI IC Sprayer Switch/Tank adeliciouspizza Electrical & Lighting 2 04-08-2004 04:24 PM
Anyone Know Part # for STI IC Spray Nozzles? WRX300 Factory 2.0L Turbo Powertrain 2 07-01-2002 03:36 PM


All times are GMT -4. The time now is 08:13 AM.


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.