Welcome to the North American Subaru Impreza Owners Club Sunday December 4, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L 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 09-13-2006, 12:36 PM   #1
R0DENT
Scooby Newbie
 
Member#: 111756
Join Date: Apr 2006
Chapter/Region: RMIC
Vehicle:
04 WRB STi
Few Mods...

Default Thinking of ditching the STi fuel filter

Okay, I'm finally getting around to installing my Walbro this week. I was going to do it tonight but I was concerned over the fuel filter since my car is getting up there in miles.

After doing some searching, it appears Subaru only wants to sell you the complete fuel pump assembly for $550 and won't sell just the filter part! I don't think so.

I came across a guy that took out the filter part in the large brass/plastic thing.
Looks like this on the left:
http://i73.photobucket.com/albums/i2...4/DSC02644.jpg
And installed an 02-03 WRX filter and bracket in the engine bay.
http://forums.nasioc.com/forums/showthread.php?t=949082

Quote:
Originally Posted by KEVINL
I just converted mine over to a wrx fuel filter

I removed the fuelfilter from the cartridge put it back togehter then I removed tha magnet from the pressure line and stuck the stock wrx fuel filter in its place

I dont have the part numbers but all you need is a 02-03 WRX fuel filter and the bracket.

you go from this http://www.thehaltermans.com/fuelfilter1.jpg

To this http://www.scoobymods.com/forums/att...achmentid=1151

http://www.scoobymods.com/forums/att...achmentid=2582
All you do is unsrew the fuel filter cartridge on the fuel pump assy and remove the filter element and put it back together.

this will walk you through the fuel filter for the most part.
http://www.scoobymods.com/forums/showthread.php?t=3645


Has anyone here tried this yet? Seams more logical to have a fuel filter where you can get to it. The only thing I'm worried about is finding a new fuel sock for the bottom of the fuel pump. Any ideas that would be close to the stock fuel sock?
* Registered users of the site do not see these ads.
R0DENT is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-13-2006, 01:41 PM   #2
RP31
Scooby Specialist
 
Member#: 123574
Join Date: Aug 2006
Chapter/Region: MWSOC
Location: Lisle, IL
Vehicle:
2005 stuck-in-garage
CGM STi

Default

Subscribed because I am interested as well... E85 will severely cut into the lifespan of my fuel pump/filter.
RP31 is offline   Reply With Quote
Old 09-13-2006, 01:50 PM   #3
x99percent
Scooby Specialist
 
Member#: 27108
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: Detroit-ish, MI
Vehicle:
2004 STi
2004 A4

Default

Quote:
Originally Posted by R0DENT View Post
The only thing I'm worried about is finding a new fuel sock for the bottom of the fuel pump. Any ideas that would be close to the stock fuel sock?
What's wrong with the stock one?
x99percent is offline   Reply With Quote
Old 09-13-2006, 01:52 PM   #4
R0DENT
Scooby Newbie
 
Member#: 111756
Join Date: Apr 2006
Chapter/Region: RMIC
Vehicle:
04 WRB STi
Few Mods...

Default

Quote:
Originally Posted by x99percent View Post
What's wrong with the stock one?
Nothing, just dirty I assume. I suppose I can clean it with carb cleaner or something and re-use it.

I just called another local dealer for the stock filter. They told me I never have to change the filter if its in the tank. And I said "So I can drive 200,000 and never have to change the filter?" and they said yes! LOL!
R0DENT is offline   Reply With Quote
Old 09-13-2006, 01:59 PM   #5
x99percent
Scooby Specialist
 
Member#: 27108
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: Detroit-ish, MI
Vehicle:
2004 STi
2004 A4

Default

Quote:
Originally Posted by R0DENT View Post
Nothing, just dirty I assume. I suppose I can clean it with carb cleaner or something and re-use it.
If you get a Walbro and they include the unnecessary "install kit", the kit should contain a new sock. The stocker *appears* to be nicer, though.

If the sock looks OK, I'd just re-use it.

Quote:
Originally Posted by R0DENT View Post
I just called another local dealer for the stock filter. They told me I never have to change the filter if its in the tank. And I said "So I can drive 200,000 and never have to change the filter?" and they said yes! LOL!
Wow.
x99percent is offline   Reply With Quote
Old 09-13-2006, 02:09 PM   #6
Doctor Subie
Scooby Specialist
 
Member#: 115994
Join Date: May 2006
Chapter/Region: NWIC
Location: Pacific NW
Vehicle:
2015 991 GTS
White

Default

the filter in the walbro 'supposedly' doesn't filter as well as the stock.. There were a couple of posts on it before, either here or on IWSTI. I'd consider re-using the stocker, but I can't imagine Subaru doesn't sell a replacement one alone!
Doctor Subie is offline   Reply With Quote
Old 09-13-2006, 03:15 PM   #7
SinistiR
Scooby Newbie
 
Member#: 58733
Join Date: Apr 2004
Location: maryland
Vehicle:
2004 STi

Default

I removed my stock filter along time ago and just run an resuable inline filter up front. I kept the housing for the fuel filter, just pulled the element out. I kept the housing inline as an extra pulse damper, not that you need to though.
SinistiR is offline   Reply With Quote
Old 09-13-2006, 03:44 PM   #8
flycaster
Scooby Specialist
 
Member#: 60142
Join Date: Apr 2004
Location: Bend, OR
Vehicle:
2011 WRX
Grey

Default

Quote:
Originally Posted by SinistiR View Post
I removed my stock filter along time ago and just run an resuable inline filter up front.
That's a much better solution, imo, although I'd use a replaceable unit.
flycaster is offline   Reply With Quote
Old 09-13-2006, 03:50 PM   #9
socalLGT
Scooby Specialist
 
Member#: 89752
Join Date: Jun 2005
Chapter/Region: SCIC
Location: On the dyno at Yimi Sport
Vehicle:
08 STI
SWP

Default

Quote:
Originally Posted by SinistiR View Post
I removed my stock filter along time ago and just run an resuable inline filter up front. I kept the housing for the fuel filter, just pulled the element out. I kept the housing inline as an extra pulse damper, not that you need to though.
I have an 05 LGT and I need to add an inline filter as well. I'm not sure if the color coding is the same, but which underhood fuel line in the feed line, and which on is the return line? On my car, there is a blue hose, a black hose and a gray hose. I know the blue one is the evap line, but between the gray one and the black one, which is the feed and which is the return? TIA.
socalLGT is offline   Reply With Quote
Old 09-13-2006, 04:12 PM   #10
Wombat North
Scooby Specialist
 
Member#: 21267
Join Date: Jul 2002
Location: Eats, roots and then leaves
Vehicle:
STI, EWG 8cm Green
UTEC/ECUtek/WI & SD tune

Default

FXT Forester fuel filter is the same as the STI. Its listed as a separate item

Part #4207FE020
Wombat North is offline   Reply With Quote
Old 09-13-2006, 04:17 PM   #11
SinistiR
Scooby Newbie
 
Member#: 58733
Join Date: Apr 2004
Location: maryland
Vehicle:
2004 STi

Default

The black hose is the feed to the fuel rails.
SinistiR is offline   Reply With Quote
Old 09-14-2006, 02:46 AM   #12
R0DENT
Scooby Newbie
 
Member#: 111756
Join Date: Apr 2006
Chapter/Region: RMIC
Vehicle:
04 WRB STi
Few Mods...

Default

Quote:
Originally Posted by Wombat North View Post
FXT Forester fuel filter is the same as the STI. Its listed as a separate item

Part #4207FE020
Great info! Funny how they list it for that car but not the STi...

I'll have to call the dealer just to see how much they want for it.

I just took the filter out completely and used some FI hose. Works great! No cutting!

I just didn't see the need for that filter bulb if there's no filter inside.

Installing WRX or aftermarket filter in the front tomorrow.
R0DENT is offline   Reply With Quote
Old 09-14-2006, 12:00 PM   #13
R0DENT
Scooby Newbie
 
Member#: 111756
Join Date: Apr 2006
Chapter/Region: RMIC
Vehicle:
04 WRB STi
Few Mods...

Default

Quote:
Originally Posted by Wombat North View Post
FXT Forester fuel filter is the same as the STI. Its listed as a separate item

Part #4207FE020
Its actually 42072 FE020. Dealer wanted $88! Think I'll stick with the $15 2002 WRX filter.
R0DENT is offline   Reply With Quote
Old 01-26-2007, 12:18 AM   #14
dan2304k
Scooby Newbie
 
Member#: 36943
Join Date: May 2003
Location: Mountain View, CA
Default

Here's the STI fuel filter part number 42072FE020


Last edited by dan2304k; 01-26-2007 at 03:43 PM. Reason: Fixed the part number because i'm an idiot.
dan2304k is offline   Reply With Quote
Old 01-26-2007, 12:37 PM   #15
R4ND0M_AX3
Scooby Newbie
 
Member#: 67483
Join Date: Aug 2004
Location: Sacramento, CA
Vehicle:
2005 WRX STi

Default

Quote:
Originally Posted by dan2304k View Post
Here's the STI fuel filter part number 42072FE020
fixed
R4ND0M_AX3 is offline   Reply With Quote
Old 02-27-2009, 08:53 PM   #16
C89ZX7R
*** Banned ***
 
Member#: 119154
Join Date: Jul 2006
Location: Richmond VA
Vehicle:
2004 White
STi

Default

Any updates to this? Yes I know its a old thread, but does anyone know the flow difference between the wrx and sti filter?
C89ZX7R is offline   Reply With Quote
Old 02-27-2009, 09:04 PM   #17
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

Quote:
Originally Posted by C89ZX7R View Post
Any updates to this? Yes I know its a old thread, but does anyone know the flow difference between the wrx and sti filter?
irrelevant
Uncle Scotty is offline   Reply With Quote
Old 02-28-2009, 12:53 PM   #18
2001stook
Scooby Newbie
 
Member#: 44366
Join Date: Sep 2003
Chapter/Region: Tri-State
Location: CT
Vehicle:
'04 STi
JBP

Default

I am doing this mod to my STi in the next week or two. Just waiting on the arrival of a WRX fuel filter mount. Any impact to running both the WRX filter in the engine bay at the same time as I am running the STi in-tank filter. I have quite a bit of work to be done on the car prior to my tune and just trying to knock off some of the low hanging fruit since I will need to get tuned right after the walbro install (I think). If there is any concern on this one, I will just do the engine bay filter right after the Walbro fuel pump install. The only issue I could foresee is a fuel pressure reduction from having the extra flow restriction in the fuel line from a second filter. Any opinions one way or the other?
2001stook is offline   Reply With Quote
Old 09-17-2009, 12:27 PM   #19
Daluv
Scooby Newbie
 
Member#: 159325
Join Date: Sep 2007
Default

anyone running the wrx fuel filter? I am thinking of ditching that damm intank fuel filter as well...

Quote:
Originally Posted by 2001stook View Post
I am doing this mod to my STi in the next week or two. Just waiting on the arrival of a WRX fuel filter mount. Any impact to running both the WRX filter in the engine bay at the same time as I am running the STi in-tank filter. I have quite a bit of work to be done on the car prior to my tune and just trying to knock off some of the low hanging fruit since I will need to get tuned right after the walbro install (I think). If there is any concern on this one, I will just do the engine bay filter right after the Walbro fuel pump install. The only issue I could foresee is a fuel pressure reduction from having the extra flow restriction in the fuel line from a second filter. Any opinions one way or the other?
Daluv is offline   Reply With Quote
Old 09-18-2009, 07:50 PM   #20
Boxer112
Scooby Specialist
 
Member#: 78751
Join Date: Jan 2005
Chapter/Region: Tri-State
Location: Yokosuka, Japan (from NY)
Vehicle:
2017 Sti
ISM

Default

When they quoted for $550, was that for the fuel level sensor also? and they do sell it separately because i just got one a few months ago
Boxer112 is online now   Reply With Quote
Old 09-18-2009, 07:59 PM   #21
oman350
*** Banned ***
 
Member#: 180886
Join Date: May 2008
Chapter/Region: NWIC
Location: G_town Oregon
Vehicle:
2006 Sti
06 Stage 2 SGM STi

Default

?????
oman350 is offline   Reply With Quote
Old 07-24-2010, 10:51 AM   #22
vapore0n
Scooby Specialist
 
Member#: 21356
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Can't catch me!
Vehicle:
2017 Subaru Corolla
STI Limited SE-R Type (R)

Default

Bump. Anyone tried this yet?

Isn't there going to be consequences to moving the filter to the engine bay? I'm thinking lower pressure after the filter, or the pump working harder to keep the pressure.
But them in not a ME.
vapore0n is offline   Reply With Quote
Old 07-24-2010, 02:01 PM   #23
BlackFighter
Scooby Specialist
 
Member#: 193940
Join Date: Nov 2008
Location: Philly
Vehicle:
2004 WRX STI Black
RalliSpec Shortblock

Default

I had no prob going to my local dealer and get just the filter from Subaru. Don't know what you guys are talking about. I have an extra sti filter if u want to buy it?
BlackFighter is offline   Reply With Quote
Old 07-24-2010, 02:25 PM   #24
john 1badSTI
Scooby Specialist
 
Member#: 77470
Join Date: Dec 2004
Chapter/Region: MWSOC
Location: grove city ohio
Vehicle:
04 sti [email protected]
on e85@ 30psi--spinning

Default

go to this website--APEUSA.COM--they are one of the largest walbro dealers in the country and you can buy anything for installation separately from them including the special hose for in tank setups,different size socks,etc.etc..
john 1badSTI is offline   Reply With Quote
Old 07-25-2010, 02:57 PM   #25
vapore0n
Scooby Specialist
 
Member#: 21356
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Can't catch me!
Vehicle:
2017 Subaru Corolla
STI Limited SE-R Type (R)

Default

Quote:
Originally Posted by BlackFighter View Post
I had no prob going to my local dealer and get just the filter from Subaru. Don't know what you guys are talking about. I have an extra sti filter if u want to buy it?
I got it online. Just was curious. It would be very convenient to have it up in the engine bay too.
vapore0n 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
thinking of trading the STi for a Spec B kanye Legacy Forum 14 11-19-2009 05:26 PM
Thinking of joining the STi club. Panda Lover Newbies & FAQs 18 08-25-2009 06:50 AM
Thinking of buying the STi License Plate Delete Dragonbreak Interior & Exterior Modification 5 01-17-2008 01:49 AM
Thinking of trading the STi for an Evo Dynasty336 General Community 125 11-16-2006 04:29 PM
Any input/suggestions - Tooling with the idea of ditching the Saab for an 05/06 STi Goldie Tri-State Area Forum 8 11-21-2005 03:01 PM

All times are GMT -4. The time now is 05:13 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.