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Old 04-05-2004, 02:09 PM   #1
latinskllz
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Default are my RC Engineering injectors sitting to far back in the injector port?

I have these RC Engineering Injectors for the Impreza 2.5RS but when inserting them into my MY00 Intake Manifold, not only do they slide in easy(i know i need to use the RS O-rings), but when looking at the bottom of the intake manifold, the injector sits .5" back.

I don't have my original injectors with me at the time, but I do remember that they sat at edge of the injector port not .5" back like in the pictures. Can anyone measure the length of a stock MY00 RS Injector cause the RC's are measuring 2.75" and I need them to bolt/sit properly with my vishnu fuel rails.

Here are some pics:

Injector before sitting in intake manny:



Injector sitting in intake manny:



Underside of the intake manny with injector installed(you can see inside the port a shiny part indicating where the original o-ring from was sitting at:



Any thoughts or suggestions. Since this is an air assisted intake manny as well as the injector spraying in a conical fashion, then I think fuel will be hitting the injector ports in this current configuration. I think they should be sitting much lower.

Any thoughts?

Kevin
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Last edited by latinskllz; 04-05-2004 at 02:34 PM.
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Old 04-05-2004, 02:23 PM   #2
8Complex

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Seems Imagestation doesn't allow external linking of their pics.
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Old 04-05-2004, 02:31 PM   #3
latinskllz
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Does this work? If not try to right click on the picture and show picture

This is the album where the pictures reside, just choose the drop down menu and start with pic injectors001

Last edited by latinskllz; 04-05-2004 at 02:43 PM.
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Old 04-05-2004, 02:43 PM   #4
ExecNav
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I'm about to drop some $$ into some RC 440cc's so I'm very interested to see how this works out for you.

-Brett
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Old 04-05-2004, 02:52 PM   #5
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I have the RC550s and when I first installed them, they didn't seem to go as deep as the stockers, but they're working fine w/ over 30k miles

-vic
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Old 04-05-2004, 05:34 PM   #6
Wedge
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Hey Brett, Chanch (Omar) wants $150 for his RC440s, they've been on since Dec. I believe.

-Vic
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Old 04-05-2004, 11:08 PM   #7
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Quote:
Originally posted by cRayZee
I have the RC550s and when I first installed them, they didn't seem to go as deep as the stockers, but they're working fine w/ over 30k miles

-vic
yupp
Im selling my 550s and 99 manifold as well. Check here
http://forums.nasioc.com/forums/show...hreadid=517656
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Old 04-06-2004, 04:58 PM   #8
Boostup!
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Just bring your manifold and injectors to a machine shop, they'll make it fit. You don't have to worry about the Injector Air Assist system, just disable it and plug up the holes.

Here's how mine look after machining.



FWIW, I ran my injectors far out like what you have now for over a year and it didn't seem to be a problem.

Toon
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Old 04-13-2004, 09:51 AM   #9
latinskllz
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Quote:
Originally posted by Boostup!
Just bring your manifold and injectors to a machine shop, they'll make it fit. You don't have to worry about the Injector Air Assist system, just disable it and plug up the holes.

Here's how mine look after machining.



FWIW, I ran my injectors far out like what you have now for over a year and it didn't seem to be a problem.

Toon
Perhaps you didn't notice it, but an injector sitting that far back especially when it's a conical shape may be dumping unnecessary fuel hitting injector walls.

Anyhow, I am going to send my manifold, stock RS injector as it is indeed different that the RS RC Engineering Injector that I have so they can properly design one for the MY00-up model years with the air assist on them.

They told me that they provide spacers with the injectors for fitment, but if the injector can be machined to fit properly from the start, the necessity of spacers is eliminated.

Any opinions?
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Old 04-13-2004, 10:12 AM   #10
8Complex

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I believe that is what Tom@Ludespeed did when he had RC make injectors for the MY00's. I don't suppose it could hurt to show them the real thing with manifold, though.
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Old 04-13-2004, 11:32 AM   #11
latinskllz
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yeah, it sucks they are charging me $40 plus shipping both ways to remachine them from when they have a design flaw

I'm only trying to help as they are making the 720cc high impedance injectors and then that will be a problem if they still sit that far back.
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