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Old 06-29-2002, 05:22 PM   #1
8Complex

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Default FYI: WRX injectors in RS manifolds - No go.

At least not without new seats for the sprayer ends, and o-rings for the fuel rail sides.

I have a manifold for an MY01 Forester (exact same as MY00-01 RS) and just tried dropping in a WRX injector that I borrowed from RiftsWRX on Thursday. The seat into the manifold had AT LEAST 1/8" of play in the diameter. The rail ends, we know they are loose already, so I didn't even try it.

I am not sure where some people are getting the ideas that these fit into RS manifolds, but they are highly mistaken unless they plan on replacing all the seats with larger crosssection'd seats.
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Last edited by 8Complex; 06-30-2002 at 02:36 PM.
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Old 06-29-2002, 05:29 PM   #2
Eric SS
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Bummer. Why would subaru re-engineer those? Weird

Eric
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Old 06-29-2002, 05:31 PM   #3
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yup..they don't fit..Just Like a EJ20 manifold won't fit on a ej25 . And if you did hae a EJ20 manifold you would probally have a side fed injector, but not on all ..Gerry
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Old 06-29-2002, 07:01 PM   #4
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Quote:
Originally posted by Gerry
yup..they don't fit..Just Like a EJ20 manifold won't fit on a ej25 . And if you did hae a EJ20 manifold you would probally have a side fed injector, but not on all ..Gerry
i thought from MY99 on all the injectors went to top feed and they discontinued the use of side feed(for WHATEVER reason). But yes i know they don't fit, much too different in size.

jeremy
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Old 06-29-2002, 07:25 PM   #5
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There's also quite a bit of difference in lengths - blue one on right is a stock MY02 WRX injector, green one on left is a stock MY01 RS injector.
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Old 06-29-2002, 07:27 PM   #6
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x
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Old 06-29-2002, 08:54 PM   #7
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Ummm do you mean WRX injectors? Or are you actually talking about injectors of a WRC car?
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Old 06-30-2002, 01:27 AM   #8
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I think 8 meant WRX injectors not WRC injectors in the title. I'm gonna give AMR a call and see why they thought they would fit. Thanks for trying to fit em 8complex!

-Chav
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Old 06-30-2002, 01:35 AM   #9
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Why would you want to use WRX injectors in an EJ25T for? Unless you just had them laying around doing nothing. There are much better injectors out there we can use and will fit fine and don't really cost all that much. $400-500 is about what I'd be willing to spend for a set of 4 injectors to replace the stock ones. Besides, the WRX ones can't be all that big; ~350cc at 80%?

~Garrett
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Old 06-30-2002, 02:18 AM   #10
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Quote:
Originally posted by RallyNavvie
Why would you want to use WRX injectors in an EJ25T for? Unless you just had them laying around doing nothing. There are much better injectors out there we can use and will fit fine and don't really cost all that much. $400-500 is about what I'd be willing to spend for a set of 4 injectors to replace the stock ones. Besides, the WRX ones can't be all that big; ~350cc at 80%?

~Garrett
410cc static....and FYI RC rates their injectors @ static duty cycles for anyone who's ever wanted to know.

jeremy
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Old 06-30-2002, 01:34 PM   #11
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yeah, arn't they rated at 430 static also?
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Old 06-30-2002, 02:38 PM   #12
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420cc static.

Also, you can get STi injectors that'll drop into the WRX for ~$500 now that flow 565cc's, so the cost is right on, Garrett.

And yes, I meant WRX injectors... these keys are too damn close together on the keyboard.
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Old 06-30-2002, 02:49 PM   #13
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Garrett, can you tell me where I can get injectors for the ej25? I've been looking and RC doesnt want to provide injectors for me unless I'm willing to prototype a set for no discount. Then there are the talon injectors. Thanks.

-Chav
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Old 06-30-2002, 03:30 PM   #14
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Quote:
Originally posted by Chav
Garrett, can you tell me where I can get injectors for the ej25? I've been looking and RC doesnt want to provide injectors for me unless I'm willing to prototype a set for no discount. Then there are the talon injectors. Thanks.

-Chav
Actually, I Just paid a lot of cash (bought an extra injector) to test out the 2002 rs injectors. RC should have them. But I don't think they want to sell untill I call them back telling them on my fitment issues (I am waiting for fuelrails...sorry guys). So if you give me a few more weeks I will tell you and tehm whats up (I go a few to test out)
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Old 06-30-2002, 03:32 PM   #15
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Unhappy Chav

It seems no-one really knows what will go into what. I just read about the DSM 440cc injectors being able to fit also. There are a few on Ebay but I'm skeptical. I'm almost positive that if I went out and purchased the DSM 440cc injectors for my OBS, tried them and they didn't work, all of a sudden people would come out of the woodwork saying that they knew it didn't work.

If you get any news on this, please feel free to PM me. Thanks!

BTW: I am being told that the SR20DET injectors WILL fit but you need to modify the connectors.
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1840440502
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Old 06-30-2002, 03:58 PM   #16
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Kevin

8Complex has a later car with top feed injectors. Our cars (and the '98 RS) have sidefeed injectors, so the SR20DET 370s will fit.

The DSM injector thing is new to me. I'm gonna so searching for a picture now.....

Jeff
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Old 06-30-2002, 05:18 PM   #17
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Quote:
Originally posted by DoctorNick
Actually, I Just paid a lot of cash (bought an extra injector) to test out the 2002 rs injectors. RC should have them. But I don't think they want to sell untill I call them back telling them on my fitment issues (I am waiting for fuelrails...sorry guys). So if you give me a few more weeks I will tell you and tehm whats up (I go a few to test out)
Dude, if you want to test them by dropping them into my extra manifold with the stock rails (obviously will need a bit of modifying to the rail height...), feel free to give me a ring to stop by some evening with them.
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Old 06-30-2002, 05:33 PM   #18
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nick: I will PM you when I get a good time and see when your free.
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Old 06-30-2002, 07:25 PM   #19
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Default Thanks Portly

Quote:
Originally posted by Portly
Kevin

8Complex has a later car with top feed injectors. Our cars (and the '98 RS) have sidefeed injectors, so the SR20DET 370s will fit.

The DSM injector thing is new to me. I'm gonna so searching for a picture now.....

Jeff
Hey Jeff,

Thanks for your responses and input. I trust your judgement and I ended up bidding on the SR20DET injectors that I posted the ebay link to: 440cc SR20DET Injectors

I feel confident that they'll work. If not, I'll be flying out to Iowa after your arse. Take care!


Oh ..and BTW: Here is a pic of some DSM injectors. They are 450cc injectors actually that are on Ebay.
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Old 07-01-2002, 01:00 PM   #20
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Anything you find that can fit into a DSM should work on the 99 and later EJ25. One source for DSM injectors:
Greddy 550cc for DSM
http://www.alamomotorsports.com/grd_injectors.html
HKS 480cc for most anything
http://www.alamomotorsports.com/injectors.htm

You can get the 550cc DSM kit from HKS for $800 but I'm sure it's pretty quality stuff.

~Garrett
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Old 07-02-2002, 04:35 AM   #21
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How about the 98RS then?

-Benson (Another MY98 Owner)
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Old 07-02-2002, 08:03 AM   #22
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BUT!, they will fit into the MY99 intake manifold, if you could source an injector from a MY99 (the one wich is smaller diameter and without the air control valve to injectors tips) youŽll find that they will work just playing with the oring at the rail!!!

I think 98 use side feed, as subaru wrx used to be!
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Old 07-02-2002, 09:22 AM   #23
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I will see if I can borrow the injector from a buddy who has a MY99 and installed 550's in place. I do remember them being different between the years due to that recirc system, but never took a close enough look.
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Old 07-02-2002, 11:44 PM   #24
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GUYS - the DSM units will not work without ballasts...DSM's are low impedance units, your Subarus are high impedance.

adam
Z-1
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Old 07-03-2002, 12:42 AM   #25
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I'm thinking somebody needs to try to get all the information on different injectors, what works and what doesn't, into one nice easy guide. Think this would be a good idea?
-Brad
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