Welcome to the North American Subaru Impreza Owners Club Friday September 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 > Normally Aspirated with bolt-on Forced Induction 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 06-10-2002, 01:38 AM   #1
Eric SS
Sooby Guru
 
Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Exclamation For those that don't have a stock FPR, what did you put in its place??

I'm trying to figure out how to put something where the stock Fuel pressure regulator went. for those that have got rid of it, what did you put there? is there a way to hollow the FPR out or something? please let me know. I need to know by tomorrow (Monday!) Thanks

Eric
* Registered users of the site do not see these ads.
Eric SS is offline   Reply With Quote
Old 06-10-2002, 10:07 AM   #2
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Yeah, you could hollow the stock FPR, though I'm not sure how well it'd perform with the diaphragm removed or something. I would just machine a piece to fit in there, if you have access to something like that. Or get a tube that fits in there, put an o-ring or two on it, then make a plate that fit over the tube and screwed to the FPR mount on the rail, and weld them together appropriately.

Forgot : Weapon-R supposedly has a piece that you can put in place of the stock FPR to put their FPR on... no idea if you can buy it seperately or not though.

Last edited by 8Complex; 06-10-2002 at 10:52 AM.
8Complex is offline   Reply With Quote
Old 06-10-2002, 10:58 AM   #3
kastle
Frank Army
 
Member#: 1457
Join Date: May 2000
Chapter/Region: SWIC
Location: Phoenix, AZ
Vehicle:
1999 Outback Sport
Steel Blue Mica

Default

Using the Vishnu Supplied FPR (comes with fuel rails)...
kastle is offline   Reply With Quote
Old 06-10-2002, 10:59 AM   #4
kastle
Frank Army
 
Member#: 1457
Join Date: May 2000
Chapter/Region: SWIC
Location: Phoenix, AZ
Vehicle:
1999 Outback Sport
Steel Blue Mica

Default

Also, you can use the SVX FPR... many people have done that while using a RRPFR.
kastle is offline   Reply With Quote
Old 06-10-2002, 11:12 AM   #5
Jon Bogert
Scooby Specialist
 
Member#: 1133
Join Date: Mar 2000
Location: SE PA
Vehicle:
09 GTR, 02 996 C4S
95 993 C4, 71 911, 04 STI

Default

Mazda 626.
Jon Bogert is offline   Reply With Quote
Old 06-10-2002, 11:16 AM   #6
skywalker
Scooby Specialist
 
Member#: 1990
Join Date: Jul 2000
Location: San Diego, CA
Cool

Aeromotive has one which can be bought online at Summit Racing...

Part Number #, AEI-13109

If you are looking for the adaptor to the fuel rail, pm me. Working on getting them.

Also if you are running the Link Plus you do not need to change the stock FPR. Though the only drawback of it is that you may not be able to flow enough fuel through it, at higher flow rates, once you get bigger injectors, but I am not sure how that works. I am pretty sure the Aeromotive will run fine at any level.
skywalker is offline   Reply With Quote
Old 06-10-2002, 02:08 PM   #7
adamsrs
Scooby Specialist
 
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
Default

So is it bad to run an adjustable SARD FPR without the stock FPR?
adamsrs
adamsrs is offline   Reply With Quote
Old 06-10-2002, 02:15 PM   #8
Rovah
Scooby Specialist
 
Member#: 1375
Join Date: Apr 2000
Location: Bangor, Maine
Vehicle:
2003 WRX Rally Car
Silver

Default

I'm still trying to figure all this out on my RS-T. Tried the parallel fuel line mod with the Vortech SMFU as the only FPR. Didn't work well. Had a local guy cut off the stock FPR off the fitting and braze on a 90 degree hose barb. This works well to replace the stock FPR.

Problem was the car wouldn't run in that configuration(with Walbro pump). Put the lines back to stock with the stock FPR and it runs fine. SMFU is now sitting downstream from the stock FPR.

Talked to the tech dept. at Vortech and he told me to install the higher rate spring in the kit to see if I couldn't get a better base fuel pressure. I've installed the spring, but haven't had the time to remove the stock FPR again to try it.

FWIW, both the Cartech and Vortech SMFU should be able to replace the stock FPR and provide for more fuel bypass to the tank with the high flow pumps. However, I don't know anyone that's using one as a standalone unit. I'm going to keep trying!

Also, I'm seeing 100% duty cycle on my stock injectors using the injector duty cycle gauge from Racer Parts Wholesale. Anyone with any thoughts on this? Do I need Sti injectors now? When driving, it feels like a fuel cut off.

Cheers! John
Rovah is offline   Reply With Quote
Old 06-10-2002, 06:15 PM   #9
skywalker
Scooby Specialist
 
Member#: 1990
Join Date: Jul 2000
Location: San Diego, CA
Default

What injectors are you running at what PSI? Anything above 3 PSI and you are probably maxing out your stock 280cc injectors. So you will need to upgrade those pretty soon.

As for the Vortech SFMU, I have never gotten that to work ever and from the sounds of things no one ever has and never will. That FMU was made for Mustangs in mind, which have a totally different flow characteristics, fuel pressure, 8 injectors (much bigger) instead of 4, WAY BIGGER fuel lines, more fuel flow. So more than likely that is why it is not working like we want it to. I have tried everything with that damn SFMU and it will nto work as a stand alone.

You will need to run a FPR like the one I listed above with the SFMU located after it.

But on the upside you can get rid of the SFMU as soon as you get standalone engine management.
skywalker is offline   Reply With Quote
Old 06-10-2002, 10:52 PM   #10
Rovah
Scooby Specialist
 
Member#: 1375
Join Date: Apr 2000
Location: Bangor, Maine
Vehicle:
2003 WRX Rally Car
Silver

Default

Skywalker,
I haven't given up on the SMFU yet. Almost, but not yet. I installed the higher rate spring and will attempt to use it as a stand alone again this weekend and post what happens. At least I know it's working alright in it's current position downstream from the stock FPR and can return to that setup.

I can't think of any physical reason that we can't use the damn thing by itself, but no one has seemed to be able to make it happen!

I definitely need some new injectors.

Cheers! John
Rovah is offline   Reply With Quote
Old 07-03-2002, 02:03 AM   #11
ChicksDigWagons
Scooby Specialist
 
Member#: 20508
Join Date: Jun 2002
Chapter/Region: MWSOC
Location: Ishpeming, MI
Vehicle:
1998 Red Wagon
New Turbo Project...

Default

Rovah, did you figure anything out with the Vortech unit?
ChicksDigWagons 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
Pre-Columbine people: What did you do in school that would get you expelled today? Strider Off-Topic 83 11-14-2007 09:01 AM
For those that don't know what the "D" means for D-day Stroke Off-Topic 12 06-04-2004 08:39 PM
WRX was put in its place (not). OrionAK Alaskan Impreza Club Forum -- AKIC 24 09-23-2003 11:44 AM
What did I put in the pressure plate that I can't get back out?? GregUnd Texas Impreza Club Forum -- TXIC 3 12-13-2002 07:59 PM
For those that don't like new WRX: bodykit!!! Stickee General Forum Archive 43 09-09-2000 12:59 AM


All times are GMT -4. The time now is 04:45 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.