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Old 06-26-2002, 10:07 PM   #1
ChicksDigWagons
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New Turbo Project...

Default 97 OBS injector upgrade

Upgrading the injectors seem to be a very shady area with Subies. Whats the deal? Does anybody know of someplace where the fitment for different injectors is documented? I've heard of people upgrading the GC8 injectors to Legacy Turbo injectors but have yet to see any details on whether the injectors fit no sweat or if a complete fuel rail swap is in order.

Speaking of fuel rails, who makes top feel rails so us side feed guys can run much more common top feed injectors?
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Old 06-27-2002, 02:32 AM   #2
Portly
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I just replaced my stock 220 cc injectors with 370 cc ones from a Nissan SR20DET engine. Mine came out of a Bluebird.

With the exception of the electrical connectors, the injectors were physically identical. Didn't have to change anything about the rails.

A lot of Nissan guys sell theirs to upgrade to larger ones, so I only paid $170 shipped.

Jeff
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Old 06-27-2002, 03:31 AM   #3
MPREZYA
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SR20DET injectors will work with the only issue being what was stated above.

Legacy turbo injectors will work and those are 370-390cc IIRC and no connector issue.

98 DOHC EJ25 injectors will work and those are 280's compared to the stock 240's. Also you don't need an AFC as you can use the 98 ECU as well and even get a higher redline too (6500).


I also don't see why you couldn't use the WRX injectors as those look similar to the legacy turbo's. Wonder if someone tried them yet.
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Old 06-27-2002, 03:47 AM   #4
christoph1371
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I will add that to my list of things to try MPREZYA.
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Old 06-27-2002, 04:59 AM   #5
bensonwrx
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So 98RS has 280cc while 99-01RS are 240cc?
I like those STi pink ones too, but heard they will not fit

-Benson (Another MY98 Owner)
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Old 06-27-2002, 12:07 PM   #6
Darshu
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Uh, let's nip this one in the bud -- we're talking about a 2.2L OBS here -- it's got 240cc injectors -- no RS ever had 240cc injectors. MY99-MY01 injectors are top feed, not side feed like the MY98 and MY97 OBS.
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Old 06-27-2002, 12:15 PM   #7
ChicksDigWagons
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Wow, exactly what I needed. Thanks for the info. Now does anybody know anybody willing to part with some 98 RS injectors for cheap? Or even some Nissan parts for that matter? I am trying to avoid using a RRFPR and I already have an AFC, so injectors seem to be the way to go for a safety margin.

-Brad
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Old 06-27-2002, 03:35 PM   #8
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As a partial thread jacking, what injector upgrades are there for the 99 and newer EJ25? Can we source injectors from another car?

J
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Old 06-27-2002, 07:24 PM   #9
Portly
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Looks like there's some disagreement over whether the stock 2.2 injectors are 220 or 240 cc/min. I had read they were 220, but I could very well be wrong.

I have heard that the turbo Legacy injectors require a different fuel rail. Anyone with experience care to confirm this?

Although the 280's from the RS may fit, that doesn't really give you all that much extra capacity. If you're gonna do it, I'd recommend taking a bigger step. Check out the classified on the SR20DET forums. You should be able to pick up a good set for around $200.

Jeff
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Old 06-27-2002, 08:39 PM   #10
Kevin Thomas
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Default Are you sure?

Quote:
Originally posted by MPREZYA
SR
Legacy turbo injectors will work and those are 370-390cc IIRC and no connector issue.
Are you absolutely, positively sure about this? I really, Really, REALLY don't want to find out that I have connection issues if I were to purchase Legacy turbo injectors for my 1997 2.2ltr Impreza Outback Sport. I just want to be sure you KNOW this will work and not that somebody told you it would or you thought it would work. Thanks for the info!

ChicksDigWagons,

WAC (I-club name...real name Wayne) told me about the SR20DET injectors also. I (just like you) just want to upgrade the injectors without having to change ANYTHING else. I hope I don't miss the answer to this. L8Rs
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Old 06-27-2002, 09:15 PM   #11
christoph1371
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ok i'll squash one part of this:
1997 2.2OBS Injector part number 16611AA300 cost $109.95
you want to try and get more info then call 1-800-subaru-3


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Old 06-29-2002, 11:13 PM   #12
Kevin Thomas
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Default ChicksDigWagons

ChicksDigWagons,

It seems the only positive path for you in upgrading your injectors will good fitment is to send in one of your stock injectors to RC Engineering. Call them up when you get a chance.
http://www.rceng.com
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