Welcome to the North American Subaru Impreza Owners Club Saturday February 17, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Interior & Exterior Modification

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 10-15-2012, 12:51 PM   #1
roytsang1991
Scooby Newbie
 
Member#: 325642
Join Date: Jul 2012
Location: santa monica ,CA
Vehicle:
2004 wrx
wrb

Default the right track of upgrading injection system??

well, i am upgrading the injectors and the fuel pump.(sti pinks and 255walbro)(04 wrx with vf23)
i am using the stock ecu , i know i have to have an engine management after i upgraded it.
i am thinking to install the injectors and the pump by myself so i can save some $$
i am wondering can the car run after i just installed them? or i should have the engine management right after i install the new things? cause the ecu might not accept the new bigger injectors and i have to reflash the ecu right after upgrade???
* Registered users of the site do not see these ads.
roytsang1991 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-15-2012, 01:38 PM   #2
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2013 Audi
A6 3.0T

Default

No, you must have EM to have the car run after an injector upgrade.

You also should fill out your profile, because as far as we know, you drive a 89 Honda. And posting in the correct TECHNICAL FORUM would help a lot. Injectors are NOT interior or exterior.
HinshawWRX is offline   Reply With Quote
Old 10-15-2012, 04:34 PM   #3
roytsang1991
Scooby Newbie
 
Member#: 325642
Join Date: Jul 2012
Location: santa monica ,CA
Vehicle:
2004 wrx
wrb

Default

Quote:
Originally Posted by HinshawWRX View Post
No, you must have EM to have the car run after an injector upgrade.

You also should fill out your profile, because as far as we know, you drive a 89 Honda. And posting in the correct TECHNICAL FORUM would help a lot. Injectors are NOT interior or exterior.
thanks, so i should bring the injectors and the pump to the dyno shop or tuner.
do the normal dyno shop do the EM?
roytsang1991 is offline   Reply With Quote
Old 10-15-2012, 05:02 PM   #4
dirtwarrior
Scooby Newbie
 
Member#: 213437
Join Date: Jun 2009
Chapter/Region: RMIC
Location: Boise, ID
Vehicle:
2004 WRX Wagon
WRB

Default

Most shops that tune will also install everything for you. If you want to save money just do the install yourself and trailer it to the shop after
dirtwarrior is offline   Reply With Quote
Old 10-15-2012, 05:17 PM   #5
sc00by4life
Scooby Guru
 
Member#: 97135
Join Date: Sep 2005
Chapter/Region: NWIC
Default

how are you running a vf23 on a stock tune?
sc00by4life is offline   Reply With Quote
Old 10-15-2012, 06:02 PM   #6
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2013 Audi
A6 3.0T

Default

You do not need a tune for a fuel pump, you do for injectors. Let me clarify that.
HinshawWRX is offline   Reply With Quote
Old 10-18-2012, 10:04 PM   #7
roytsang1991
Scooby Newbie
 
Member#: 325642
Join Date: Jul 2012
Location: santa monica ,CA
Vehicle:
2004 wrx
wrb

Default

Quote:
Originally Posted by sc00by4life View Post
how are you running a vf23 on a stock tune?
running 15psi ,i feel like something limit my power, and i have try 1/4miles with my roommate who drives a 2009 audi a4 stock . its as slow as the a4
that why i am look for upgrading injector and fuel pump
roytsang1991 is offline   Reply With Quote
Old 10-18-2012, 10:05 PM   #8
roytsang1991
Scooby Newbie
 
Member#: 325642
Join Date: Jul 2012
Location: santa monica ,CA
Vehicle:
2004 wrx
wrb

Default

Quote:
Originally Posted by HinshawWRX View Post
You do not need a tune for a fuel pump, you do for injectors. Let me clarify that.
yea , thanks i have already install the fuel pump and made an appointment for tune
roytsang1991 is offline   Reply With Quote
Old 10-18-2012, 10:12 PM   #9
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2013 Audi
A6 3.0T

Default

Quote:
Originally Posted by roytsang1991 View Post
running 15psi ,i feel like something limit my power, and i have try 1/4miles with my roommate who drives a 2009 audi a4 stock . its as slow as the a4
that why i am look for upgrading injector and fuel pump
So you put it on and just kept the stock tune? That was the question. No matter what, if you're not specifically tuned for that turbo, you are causing a LOT of harm to the motor.
HinshawWRX 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

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