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Old 07-05-2004, 05:04 PM   #1
munkis
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Default 98 RS Fuel Rails, any plug and play injectors.

I currenty have some used injectors 400/cc, that are 'rigged' wiring wise cause the hardshell connectors dont fit on them.

I would like to eventually put something in that fits properly.

I was looking at a picture of the 04 usdm sti injectors and they look similiar...but im probalby wrong.

what are you running that fits. Or that you have made fit.

Jay
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Old 07-05-2004, 06:20 PM   #2
NeaD
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the 04 usdm sti injectors will not fit.
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Old 07-05-2004, 07:50 PM   #3
Unsung Boxer
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Quote:
Originally posted by NeaD
the 04 usdm sti injectors will not fit.
(wasnt i the one who told you that? I told you I heard they dont fit, so I hope your not giving him info based on me)

Why put in different injectors just because you dont like the wiring. How about you just do a nice job w/ the wiring. Get yourself some nice butt connectors and some heat shrink tubing. (make sure you are careful using the heat gun around the fuel)

-Jake
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Old 07-05-2004, 08:16 PM   #4
munkis
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They are wired nice right now, Rallispec pulled the terminals out of the hardshell connectors, heatshrinked each terminal and just plugged them in idividuatlly. Im still worried about corrosion though.

I dont like the fact that I dont know what type of injectors I have or their origin.

Jay
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Old 07-05-2004, 08:21 PM   #5
GTBGUY
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McDade - the old school WRX STi injectors from a V4 or V5 will fit. They're 440cc IIRC yellow top. Also the SR20DET stock injectors will fit (370cc though; will require terminal mods though).
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Old 07-05-2004, 08:39 PM   #6
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you dont like the idea? Ok, basically ur gonna pay a bunch of money for a plastic plug. If its such a big deal, wire the other injectors into the factory plug for the 400 injectors, yeesh

ur money, waste it however u want
-Jake
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Old 07-05-2004, 08:41 PM   #7
munkis
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GTBGUY thanks for the info!

Jake, yup thats me LOL, I cant wire the aftermarket injectors into the factory plug...thats the problem

Jay
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Old 07-05-2004, 08:43 PM   #8
Unsung Boxer
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arent they 400's out of another vehicle? what im saying is get the harness plug that is meant for your 400's, and wire that in.

Sorry, i wanst clear

-Jake
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Old 07-05-2004, 08:45 PM   #9
munkis
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Quote:
Originally posted by Unsung Boxer
arent they 400's out of another vehicle? what im saying is get the harness plug that is meant for your 400's, and wire that in.

Sorry, i wanst clear

-Jake
Yea thats the problem, I have no idea what kind of car they are out of. I dont think the previous owner knows either. I would do that if I could.

GTBGUY do you happen to know if the fuel pressure regulator from a v4/5 STi is bolt in on the 98 RS Rail as well?

Jay
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Old 07-06-2004, 12:20 AM   #10
GTBGUY
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McDade - you shouldn't need to run the V4/V5 regulator etc... however I'm going to have to dig them out of the spare parts bin to do a comparison. The injectors dropped right into the Phase 1 DOHC fuel rails on the EJ25.
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Old 07-06-2004, 05:37 PM   #11
Andursun0013
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Here is a question I was thinking about...how hard would it be to convert the 98 rails to a custom top feed rail???
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Old 07-06-2004, 06:52 PM   #12
munkis
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GTBGUY, I asked about the regulator becaues I dont think the RS regulator is keeping up with the supra pump and injectors I have now.

Jay
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Old 07-07-2004, 01:31 AM   #13
GTBGUY
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Andursun0013 - it's a real PITA Fortunately with the old school Phase 1 side feed, it's been noted that it's less likely to be lean in a cyl. The config is the same as the STi config.

McDade - You may want to forgo the stock regulator or even try an external one. I'll check to see if there's any P/N's on the STi regulator I have... if it's the same you know it's no good to swap that into the rails
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Old 07-07-2004, 05:49 PM   #14
Andursun0013
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not what i was hoping to hear...guess i'll have to start checking out nismo injectors

Kyle
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Old 07-07-2004, 05:57 PM   #15
munkis
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I was looking at the vortech, but I dont think it will help on decel...Decel is when I have my problem with flooding

Jay
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Old 07-08-2004, 12:08 AM   #16
GTBGUY
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McDade - Did you upgrade your fuel return lines yet? You may want to move to a -6AN size to aleviate that.
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