Welcome to the North American Subaru Impreza Owners Club Wednesday January 17, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
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. 
Thread Tools Display Modes
Old 05-02-2003, 01:45 AM   #1
Scooby Specialist
Member#: 1418
Join Date: May 2000
Location: Swedesbor, NJ, U.S.
MY00 2.5RS
Aspen White

Default need more fuel.......??

Curious as to at what point an N/A RS will need a rising rate fuel pressure regulator? I currently have:

Borla Headers
Random Tech. Cat
2.5 inch Cat Back

and am sending out both an Intake Manifold and throttle body out to be bored and honed. Will I see any difference If I were to add a Pressure Regulator now or is it not worth it.


* Registered users of the site do not see these ads.
Rubasu is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 05-02-2003, 03:24 AM   #2
Scooby Specialist
Member#: 13745
Join Date: Dec 2001
Chapter/Region: MAIC
Location: Delaware
2015 STI


Not worth it yet..
joefocker20 is offline   Reply With Quote
Old 05-02-2003, 11:40 AM   #3
NASIOC Supporter
Member#: 232
Join Date: Sep 1999
Chapter/Region: MWSOC
Location: Ft Wayne, IN
02 Forster-S


You already have a rising rate FPR stock, its 1:1 but its rising rate. A replacement RRFPR is designed to flow more fuel at higher pressures (2:1, 4:1, etc) at greater than atmospheric pressure, a N/A car (w/o some serious ram-air action) will never go more than a psi (two is pushing it). An adjustable FPR which allows you to raise baseline fuel pressure is what you want and even then its just a band-aid for poor fuel system management.
BOY is offline   Reply With Quote

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
Need More Fuel? scoobywgn0_0 Normally Aspirated Powertrain 0 11-01-2005 03:34 PM
OK, I really need more fuel dopefish Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 7 08-21-2003 06:36 PM
i need more fuel captin. drifterx Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 10 01-17-2003 05:52 PM
Need more fuel RotarFreak Normally Aspirated Powertrain 11 11-19-2001 04:57 PM
I need more fuel pressure Scotty!!! ARG Technical Forum Archive 17 06-11-2000 10:55 AM

All times are GMT -4. The time now is 05:03 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.