Welcome to the North American Subaru Impreza Owners Club Saturday August 19, 2017
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 04-06-2002, 05:39 PM   #1
Scooby Newbie
Member#: 5982
Join Date: Apr 2001
Location: Calgary, Alberta, Canada
01 impreza rs

Default Bigger fuel injectors?

Does anyone know if putting in a high flow fuel pump and bigger injectors will help with getting more hp from the ej25? Just looking at all possiblities for getting more out of the engine. Have the CAI and SPG mods but its not enough. Not looking to make a beast just want to keep up to my buddies GTI VR6. Say about 185 hp would be nice. If their is anyway to get that hp without getting the cams or modding other internals of the engine would be nice. I've heard the lightened pulley set also helps a little. Is it possible? Any suggestions that don't break the bank would be nice.
* Registered users of the site do not see these ads.
jacksplat is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-06-2002, 05:50 PM   #2
Jesse Lorenzen
Scooby Newbie
Member#: 14962
Join Date: Feb 2002
Location: WA
2008 Impreza 2.5i


If you get a Cold Air intake, high flow muffler and a lightened pulley set you should be around 185 HP without touching the motor and if you go the value route for only a little over $500.
Jesse Lorenzen is offline   Reply With Quote
Old 04-07-2002, 10:13 AM   #3
Scooby Specialist
Member#: 1839
Join Date: Jul 2000
Chapter/Region: VIC
Location: at home

I don't think that a bigger fuel pump and injector will make any differences, unless you are turbocharging it.
bender is offline   Reply With Quote
Old 04-07-2002, 12:24 PM   #4
Scooby Guru
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
'01 GC8 Dinged STM
'09 Concours 14 ABS Black


upgrading the fuel system on a NA car(the RS) is pretty much assinine...the BSFC of the car is so low that it has a tendency to run super rich so all you are doing is taking small bits and pieces away. I don't think anyone here has maxed out their stock fuel system with street legal NA mods.

HndaTch627 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
Fuel Injector Service rsemrad South East Region Forum 0 06-02-2010 12:14 AM
Why bigger fuel injectors? Rallly2000 Newbies & FAQs 13 09-22-2008 06:52 PM
Bigger Fuel Pump needed with STi Injectors? White02WRX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 12 12-13-2003 07:52 PM
Bigger Fuel Injectors? wagonrx03 Newbies & FAQs 1 08-31-2003 07:03 AM
need 3rd gauge for car w/bigger turbo/injectors/pump=fuel pressure? hobbzz Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 16 12-26-2002 10:59 AM

All times are GMT -4. The time now is 07:44 AM.

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