Welcome to the North American Subaru Impreza Owners Club Friday December 19, 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 > 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 05-06-2008, 05:19 PM   #26
blkwgn
Scooby Newbie
 
Member#: 85087
Join Date: Apr 2005
Chapter/Region: MWSOC
Location: middle of hell
Vehicle:
2002 wrx wagon

Default

That would be my reasoning as well, and now I have two cusco 1.3bar caps sitting on my table which are totally pointless. Should have bought oem. If I keep the oem one in place on the reseviour and the cusco on the radiator it will not be a higher pressure system and see the benefits, and i am not willng to guiny pig


Argh.
* Registered users of the site do not see these ads.
blkwgn is offline   Reply With Quote
Old 09-13-2008, 10:58 PM   #27
pho4life3100
Scooby Newbie
 
Member#: 167451
Join Date: Dec 2007
Chapter/Region: SCIC
Location: socal
Vehicle:
2002 stage 1.5 wrx
aspen white

Default

Hmm.. My 02s radiator crapped out on me too.. I got a used sti radiator for a good price so I'm droppin that one in... Does that 2 radiator cap thing apply to that radiator too then? I'm still a bit confused about this whole cap issue. I got all the pipes necesarry from the dealer but they only gave me one radiator cap and didn't say anything about a second? Any help would be appreciated!

Thanks!
pho4life3100 is offline   Reply With Quote
Old 09-13-2008, 11:06 PM   #28
pho4life3100
Scooby Newbie
 
Member#: 167451
Join Date: Dec 2007
Chapter/Region: SCIC
Location: socal
Vehicle:
2002 stage 1.5 wrx
aspen white

Default

Hmm.. My 02s radiator crapped out on me too.. I got a used sti radiator for a good price so I'm droppin that one in... Does that 2 radiator cap thing apply to that radiator too then? I'm still a bit confused about this whole cap issue. I got all the pipes necesarry from the dealer but they only gave me one radiator cap and didn't say anything about a second? Any help would be appreciated!

Thanks!
pho4life3100 is offline   Reply With Quote
Old 09-14-2008, 12:32 AM   #29
DrD
Scooby Guru
 
Member#: 22412
Join Date: Aug 2002
Chapter/Region: SWIC
Location: Albuquerque, NM
Vehicle:
2012 Legacy 2.5GT
Ice Silver Metallic

Default

Quote:
Originally Posted by pho4life3100 View Post
Hmm.. My 02s radiator crapped out on me too.. I got a used sti radiator for a good price so I'm droppin that one in... Does that 2 radiator cap thing apply to that radiator too then? I'm still a bit confused about this whole cap issue. I got all the pipes necesarry from the dealer but they only gave me one radiator cap and didn't say anything about a second? Any help would be appreciated!

Thanks!
I am pretty sure there's nothing special about the radiator in the STi - an impreza radiator is an impreza radiator (for 02 to 07, anyway) - so since the STi was at least an 04, it should have a cap on it, in which case you'll need the new hardline which goes across the backside of the radiator, as well as the new rubber line to go from that to the cap on the top of the radiator.
DrD is offline   Reply With Quote
Old 09-28-2008, 02:10 AM   #30
snobordboi
Scooby Newbie
 
Member#: 149130
Join Date: May 2007
Location: Colorado kid bored in Canada
Vehicle:
2002 WRB WRX
VF39 Brembos etc

Default

Hmm, just bought an aluminum rad to replace mine in my 02, and I guess I need the hard line and overflow lines, or is there any way to at least temporarily use hose to complete the system, since I am sick of smelling coolant from a leaking cap seam.
snobordboi is offline   Reply With Quote
Old 09-28-2008, 04:18 AM   #31
rougeben83
Scooby Guru
 
Member#: 115154
Join Date: May 2006
Chapter/Region: MWSOC
Location: NYC
Vehicle:
2005 Outback XT
White on grey

Default

Quote:
Originally Posted by snobordboi View Post
Hmm, just bought an aluminum rad to replace mine in my 02, and I guess I need the hard line and overflow lines, or is there any way to at least temporarily use hose to complete the system, since I am sick of smelling coolant from a leaking cap seam.
Buy a plastic tee from home depot and some rubber hose from the auto store.
rougeben83 is offline   Reply With Quote
Old 10-03-2008, 06:57 PM   #32
icelt
Scooby Newbie
 
Member#: 72311
Join Date: Oct 2004
Chapter/Region: TXIC
Location: Dallas
Vehicle:
2002 WRX Wagon 5-spd
Black

Default

I just had the Koyo radiator installed in my '02 WRX wagon about 2 weeks ago. Unfortunately after about 1.5 weeks I learned I was leaking coolant again. Initially I thought it was one of the original hoses I did not replace, but after poking around further I just found out it was because the passenger side cooling fan was cutting into the top main cooling hose. Basically the Koyo radiator is so much thicker than the stock one that it is creating interference between the fan and hose that wasn't there before.

Anyone have a similar problem using this radiator? Any suggestions for a fix? Maybe wrap some aluminum sheeting around a new hose and let the fan just wear itself down is what I was thinking. I'd really rather not have to pull both fans back out as that is not an insignificant effort.

Edit-----
Whoops, should have done some more searching first. Sorry 'bout that . So FYI it looks like the preferred solution is to just simply trim the upper radiator hose about 1/2" from the engine block connection side.

Last edited by icelt; 10-03-2008 at 07:56 PM.
icelt is offline   Reply With Quote
Old 10-03-2008, 07:59 PM   #33
rougeben83
Scooby Guru
 
Member#: 115154
Join Date: May 2006
Chapter/Region: MWSOC
Location: NYC
Vehicle:
2005 Outback XT
White on grey

Default

Quote:
Originally Posted by icelt View Post
I just had the Koyo radiator installed in my '02 WRX wagon about 2 weeks ago. Unfortunately after about 1.5 weeks I learned I was leaking coolant again. Initially I thought it was one of the original hoses I did not replace, but after poking around further I just found out it was because the passenger side cooling fan was cutting into the top main cooling hose. Basically the Koyo radiator is so much thicker than the stock one that it is creating interference between the fan and hose that wasn't there before.

Anyone have a similar problem using this radiator? Any suggestions for a fix? Maybe wrap some aluminum sheeting around a new hose and let the fan just wear itself down is what I was thinking. I'd really rather not have to pull both fans back out as that is not an insignificant effort.

Edit-----
Whoops, should have done some more searching first. Sorry 'bout that . So FYI it looks like the preferred solution is to just simply trim the upper radiator hose about 1/2" from the engine block connection side.
you may need to trim the other end too, but its just a lot of fitting and cutting to make sure nothing rubs.

Good luck...
rougeben83 is offline   Reply With Quote
Old 10-03-2008, 11:35 PM   #34
icelt
Scooby Newbie
 
Member#: 72311
Join Date: Oct 2004
Chapter/Region: TXIC
Location: Dallas
Vehicle:
2002 WRX Wagon 5-spd
Black

Default

Quote:
Originally Posted by rougeben83 View Post
you may need to trim the other end too, but its just a lot of fitting and cutting to make sure nothing rubs.

Good luck...
Yeah the game plan is nice and clear now. Thanks for the input.
icelt is offline   Reply With Quote
Old 10-09-2008, 01:17 AM   #35
wrxsabre
Scooby Newbie
 
Member#: 191305
Join Date: Oct 2008
Vehicle:
2002 WRX Wagon
White

Default

Quote:
Originally Posted by azscooby View Post
For $200 shipped you can get an aftermarket aluminum radiator....not a bad way to go.

I got a mishimoto from MAPERFORMANCE.com, do a search for this radiator, many have had very good luck, including myself. I would definitely do it again. I was pretty impressed, especially for the price. Easy install and no modification needed (although the site says fans won't work, they do.)

Save $320, and get a better radiator (IMHO.) But you will still need the two hoses and the metal pipe.

Good Luck
I'm looking into aftermarket aluminum radiators and spotted the Mishimoto also. They do say that you need to buy the slim fans. How were you able to get around this and use the OEM ones? Any problems since your original post on this?
wrxsabre is offline   Reply With Quote
Old 10-09-2008, 03:47 PM   #36
strohausii
Scooby Specialist
 
Member#: 26770
Join Date: Oct 2002
Chapter/Region: South East
Location: Tampa
Vehicle:
'02 WRX
midnight black

Default

^^^ Am I wrong to think the Mishimoto's are OEM thickness but only all aluminum construction?
strohausii is offline   Reply With Quote
Old 10-09-2008, 03:50 PM   #37
rexman2002
Scooby Specialist
 
Member#: 140244
Join Date: Feb 2007
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
02 bugeye
"stare ale jare"

Default

here's the specs on Mishimoto alum. radiator.

Core Size: 344mm x 692mm
Rows: 2
Inlet: 32mm
Outlet: 32mm
Core Thickness: 42mm
Tank Wall Thickness: 2mm
Fill Neck: 32mm
Purchase Includes: Mishimoto Radiator, 1.1Bar Rad Cap, Overflow Valve Cover, Fan Bolts, 1 Year Warranty

I think the alum. one is thicker than oem. But the mishimoto one with plastic end tanks might be same size as oem.
rexman2002 is offline   Reply With Quote
Old 11-11-2008, 08:48 PM   #38
wrxsabre
Scooby Newbie
 
Member#: 191305
Join Date: Oct 2008
Vehicle:
2002 WRX Wagon
White

Default

Took a leap of faith and ordered it anyhow. Only problem I had was I had to cut about 1cm off the top hose cause it was hitting the fans. Oh and the drain plug was broken but I used the one from my old radiator.

Quote:
Originally Posted by wrxsabre View Post
I'm looking into aftermarket aluminum radiators and spotted the Mishimoto also. They do say that you need to buy the slim fans. How were you able to get around this and use the OEM ones? Any problems since your original post on this?
wrxsabre is offline   Reply With Quote
Old 01-19-2009, 11:18 AM   #39
steriodwrx
Scooby Newbie
 
Member#: 176585
Join Date: Apr 2008
Default

Quote:
I think the alum. one is thicker than oem. But the mishimoto one with plastic end tanks might be same size as oem.
I've had the mishimoto radiator in my 03 WRX for 2 years now with no problems and it came with a 1.3bar cap. My buddy dropped his mishimoto radiator when he was installing it and broke the drain plug, all he had to do was email mishimoto and they sent him a replacement the same day. I'm sticking with the mishimoto products on my next build, great product and price. oh and they dont have plastic end tanks they are all dual core aluminum radiators.
steriodwrx is offline   Reply With Quote
Old 08-24-2009, 01:42 PM   #40
libel infamy
Scooby Newbie
 
Member#: 183205
Join Date: Jun 2008
Chapter/Region: NESIC
Location: Western MA
Vehicle:
2000 Outback Sport
White

Default new rad. on my '03 wrx

im currently in the process of switching out my stock radiator (which is cracked) and replacing it with the new version rad.

everything seems to be lining up well but what do i do with the two copper pipes coming out the bottom of the new rad? i know im going to have to buy all new hoses im just waiting for the info on how many exactly i need.

since i bought my rad thru an aftermarket distributor, it came with nothing else, no hoses or extra radiator cap. i bought a cap and clamps at a local parts store and i'm wondering exactly what else i need to get inorder to have the install run smooth.

thanks
libel infamy is offline   Reply With Quote
Old 08-24-2009, 02:07 PM   #41
Kean
Scooby Guru
 
Member#: 25187
Join Date: Sep 2002
Location: So. CA
Vehicle:
'08 Foz Prem TGM
'10 Challenger R/T Blk

Default

....is your WRX an automatic or standard (stick)?
Kean is offline   Reply With Quote
Old 08-25-2009, 11:24 AM   #42
libel infamy
Scooby Newbie
 
Member#: 183205
Join Date: Jun 2008
Chapter/Region: NESIC
Location: Western MA
Vehicle:
2000 Outback Sport
White

Default

standard
libel infamy is offline   Reply With Quote
Old 08-25-2009, 11:30 AM   #43
Kean
Scooby Guru
 
Member#: 25187
Join Date: Sep 2002
Location: So. CA
Vehicle:
'08 Foz Prem TGM
'10 Challenger R/T Blk

Default

....then there should be no copper pipes at the bottom of the radiator. Likely, those metal pipes are for the trans oil cooler used in the AT application. ....I would make sure that they sent you (or that you ordered) the right radiator. There is a difference between the two.
Kean is offline   Reply With Quote
Old 08-25-2009, 03:06 PM   #44
T_Racer69
Scooby Specialist
 
Member#: 188079
Join Date: Aug 2008
Chapter/Region: South East
Location: Brunswick, GA
Vehicle:
2003 Stg 2 Bug Wagon
Sonic Yellow

Default

One other thing. The connectors for the fans are pull connectors not push connectors. I fought with this at first. The look like you would push on the tab to release the elec. connector. But you actually pull it up with your finger and release it. That took way too long for my being dense.
And just get a 5/16" tee and hose and that will allow you use all the original pieces on your new rad. Mine was the same way, I put the tee in the middle of the old return line. And hooked the one from the cap nipple to the tee, works perfect.

Travis

Picture of said Tee


Last edited by T_Racer69; 10-30-2009 at 06:05 PM.
T_Racer69 is offline   Reply With Quote
Old 08-26-2009, 07:50 AM   #45
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

I bought the "ebay radiator". CXRacing.
I'm quite a bit detail oriented, I want things to fit and work right.
It took me 3 hours to fit this thing in.
It's also an aluminum radiator, dual core.
The issue with the 2 caps and associated pressures seemed not too clear at the time, so I chose the radiator without additional cap.

Among the problems with it:
The fans seemed that they would hit both the bottom and top hoses. I had to continue to trim both hoses.
At the bottom of the fan shroud/support, there are some "hooks" that look like a 1" conduit would be supported by them in passing side to side. I thought it was a twinscroll JDM cooling, maybe a AT conduit. I'm not sure, but the hooks are there.
Once you trim the bottom hose, it's angle relative to the radiator changes and it begins to rub against the driver's outermost hook.
SO, out comes the radiator again, to trim the hook..
When everything was said and done, 3 months into usage of this, it started a slow leak by the drain plug.
I changed the rubber gasket of the plug with a rubber o-ring.
3 weeks later it started to leak again there
I changed the o-ring with a GM drain plug rubber gasket.
It's been 2 weeks...

Oh, and do yourselves a favor, read the forums, research before buying any slim fans, ok?
They cannot provide sufficient cooling.
Also, did you look at the suggested installation method for the slim fans?
Pass a plastic rod through the radiator core with a "catch washer" on the other side.
And then what? vibrate the radiator core as soon as the fans come on, untill something gives, then ... buy another radiator?

Also, the radiator I have not only is almost twice as thick compared to stock, but the support pins at the bottom are welded in such way as to space the radiator from the radiator support by 1/4", shifting it closer to the engine.
When it's installed, you can say goodbye to doing timing belt without removing the radiator first, I think even replacing the crank pulley is iffy with this thing on.

Last edited by Vlad; 08-26-2009 at 07:56 AM.
Vlad is offline   Reply With Quote
Old 08-26-2009, 08:02 AM   #46
Vlad
Scooby Guru
 
Member#: 46135
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX
Sti V9 Spec C

Default

As far as changing the pressure at which the system runs by changing the cap pressure:
I wonder what that does to the water pump lifespan.
Vlad is offline   Reply With Quote
Old 08-27-2009, 01:10 AM   #47
en3d
Scooby Specialist
 
Member#: 5238
Join Date: Mar 2001
Location: Bay Area, CA
Vehicle:
GGA Black

Default

I just installed one this weekend. I went with the CXRacing off of ebay (original style, no cap). I saved the money on the additional hoses and line.

I painted the radiator high temp black (I wanted to keep the engine back as stock looking as possible).

I had to trim both upper and lower radiator hoses by 1/4 inch on each end. Get all new clamps (4). Get some radiator hose lubricant ($1.xx at autozone) this will help with install for hoses and will help with sealing the hose. If you get a non OEM radiator, use a little loc-tite on the bolts for radiator fans. Replace the thermostat and get a new gasket for it and use some thermostat gasket maker.

This is also a great time to install a crank pulley (I installed a Kartboy). Love it.

I've had no leaks. The radiator was $135 shipped, new hoses, thermostat, clamps and coolant, it was less than $180.
en3d is offline   Reply With Quote
Old 08-27-2009, 03:10 PM   #48
ride5000
Scooby Guru
 
Member#: 32792
Join Date: Feb 2003
Chapter/Region: NESIC
Location: lincoln, ri
Vehicle:
2003 GGA MBP
12.9 / 105+

Default

cxracing '03 radiator (with cap) was the tits for me.

<140 shipped.

only mod i did was to put a solid brass 1/4"npt in where the POS petcock was.

i also used machine thread bolts instead of screws to mount the fans.

reused everything else. trimmed both hoses carefully to fit, perfectly.

most frustrating part was disconnecting those mother****ing fan electrical harness plugs.
ride5000 is online now   Reply With Quote
Old 08-29-2009, 04:24 AM   #49
mikercp
Scooby Specialist
 
Member#: 166465
Join Date: Dec 2007
Chapter/Region: SCIC
Vehicle:
1994 Civic Cx
Frost White

Default

Quick question...

I have an 03 wrx, and upgraded to a mishimoto new style radiator w/cap. Also all the necessary parts for the new style radiator were purchased from dealership.

Since, I noticed im still having some weird overheating issues..car was fine for a couple months..then i drove out to laughlin and on inclines the car temp would rise..Then just recently with the heat rising in Socal my wife was driving in stop/go traffic and the temp started to rise past the 2/3 mark so she had to pull over to cool it off..Coolant is full and not leaking at this point..i suspect either a bad radiator cap or my tstat is starting to stick closed.

Ive swapped out the thermostat and i have the following setup as far as my caps go:

On the turbo coolant tank im using the same cap that ive always had on there since ive owned the car.
On the mishimoto radiator im using a 1.3bar Greddy radiator cap

Do i need to change the cap by the turbo coolant tank ?

Ive read that higher pressure cap needs to go on the top....so does that mean I move the 1.3Bar cap to the coolant tank by turbo..and I have to use a different cap on the radiator?
mikercp is offline   Reply With Quote
Old 08-29-2009, 12:31 PM   #50
en3d
Scooby Specialist
 
Member#: 5238
Join Date: Mar 2001
Location: Bay Area, CA
Vehicle:
GGA Black

Default

Hmm... you installed a new tstat. How much coolant did you put in? with these aftermarket radiators, you need more coolant than the stock one.
en3d 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
OEM 02 WRX Radiator & Fan assembly make offer subypal Engine/Power/Exhaust 1 03-29-2010 10:19 PM
stock L radiator or 02 wrx radiator for ej20k swap? 2slofouru Subaru Conversions 1 04-16-2009 10:54 AM
OEM 02 RS Subwoofer installed in a 08 WRX Hatch possible? ejicon Car Audio, Video & Security 4 04-11-2008 03:49 AM
FS: UT: OEM 02 WRX springs, OEM 99 RS Springs, OEM 02 WRX Black Scoop - $5 Sandkicker RMIC Private Classifieds 7 12-07-2007 12:45 PM
JDM 6spd and Complete Rear End (Brembos!), WRX OEM Spoiler, WRX Radiator & Fans moss Private 'For Sale' Classifieds 48 09-21-2005 12:35 PM


All times are GMT -4. The time now is 05:10 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.