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Old 07-20-2005, 12:41 PM   #1
WebWizard
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Member#: 78979
Join Date: Jan 2005
Location: Connecticut
Vehicle:
2011 STi
Rally Blue Mica

Default Looking for Larger Injectors

Just like the title says.. Looking for larger injectors. I have decided to do away with the 2 extra injectors, as they havent done what I want them to do. And that is to stop the car from running lean when in boost. So I am now in the hunt for larger injectors to put in my car. I already have a Walboro Fuel Pump, and I am getting a SAFC2. So the last thing I think I need is the injectors...

Anyone know where I can pick up a good set for a decent deal? Before I forget, my car is a 98 Subaru Impreza 2.5 RS-T. I was looking into 550cc, but what do you guys think? Thanks in advance...

-Dave
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Old 07-20-2005, 03:46 PM   #2
WebWizard
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bump bump
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Old 07-20-2005, 06:56 PM   #3
Hitokiri
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1999 2.5RSt
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a little more information is needed.

setup?
Engine management?
whats currently powering your 2 extra injectors?
how are you controling them?
what is their max duty cycle and what is your max boost?

please explain
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Old 07-20-2005, 07:40 PM   #4
WebWizard
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I am currently running a TSi TurboKit on a stock 98 2.5RS Block at 5 psi, a piggy-back computer came with the kit. The extra 2 injectors came with a control unit, that adds fuel directly into the throttle body when I hit boost. Not sure about their duty cycle...

I dont plan on keeping the extra 2 injectors. I am ditching the extra 2 injectors(as well as my stock injectors), and injection control unit. I want to instead go with 4 larger injectors (i was thinking 550cc). I am revamping my entire fuel system after finding out that even with the extra 2 injectors, my engine was still running lean.

So heres what I plan on doing... Putting in my Walboro 255 LPH fuel pump, Larger Injectors (when I can find some), and an SAFC 2. I also dont plan on running more than 5 psi of boost, until I swap out engine components.. Just trying to find out where I can get the larger injectors for the best price. I was looking at STi Pink injectors, but it didnt say that they would fit the 98 2.5RS. If anyone has any info on where I can get some larger injectors, that would be great....

Sorry I didnt give out enough info the first time...
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Old 07-20-2005, 09:26 PM   #5
Joncas2
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1998 2.5 RST GT30R
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Follow this link for more info and knowledge. You might find it helpful given your situation.

http://forums.nasioc.com/forums/showthread.php?t=796978
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Old 07-20-2005, 11:21 PM   #6
reddevil
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Location: portland
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1990 Legacy wagon
goes 12.387 @ 116.5

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I do not know if they bolt onto your manifold (but I think they do), but if you can score some 92-94 NA Legacy fuel rails, they accept nissan srd20 injectors and these are commonly available in 370 440 550 and 820 cc sizes.
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Old 07-21-2005, 01:40 AM   #7
WebWizard
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Joncas2,

Thanx man.. I was looking at RaceComp Engineering an saw a set of STi injectors, that they say will fit MY98 RS (the STi 440cc Ver.5/6 Side-Feed injectors). My only question is, is anyone currently running these injectors or has anyone run these injectors. I also checked outbackmotors and I am gonna call them later on a few things I liked... So thanks for the link bud..

-Dave
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Old 08-06-2005, 03:08 PM   #8
Joncas2
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Red

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I'm about to run those 440cc injectors. I am assembling my car (taking a long time) and they will grace my modified fuel rails. They drop right in and the fitment is excellent. BTW, the only thing modified about my fuel rails is the Outbackmotorsports fuel lines and fittings.

I will have (2) 1200cc secondaries, but I have to mill some aluminum first.

Good luck.
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