Thread: USDM STI yellow side feed injectors - Definitive flow rate

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2009-09-30 23:08:57

#21

gomba

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Originally Posted by BenFenner

There are plenty of places to mail your injectors off to and have them flow tested. I would do that before trying to find some place local.

You are right, but I was thinking it'd be cheaper/quicker just to drive somewhere local and get it done. We'll see. I may just send them off some day.

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2009-09-30 23:24:25

#22

LikeTheMovies Online/offline status of LikeTheMovies is unknown

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Yeah I have a set and could do it also, just don't know where.

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2009-10-01 00:04:36

#23

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Originally Posted by gomba

I know you didn't pull it out of thin air, but just because a few guys on Silvia or Nissan forums say it's 565cc doesn't mean it is(except Chriscar because he actually had them flow tested). I trust the folks over at NASIOC. I don't really understand what you're trying to say here, but I guess my question is if you still believe they are 565cc?

I have a set of these injectors, but have no clue where in KC I can get 1 of them flow tested, otherwise I would.

in the end it doesn't matter what i BELIEVE

, as long as the facts can be posted so fellow members can benefit from it.
basically what i am trying to say.

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2009-10-01 00:32:05

#24

gomba

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Originally Posted by nissanwulf

in the end it doesn't matter what i BELIEVE, as long as the facts can be posted so fellow members can benefit from it.
basically what i am trying to say.

ahhh well, I agree then

All this talk of STI injectors has me crazy tired. I think this discussion is over. Let the people decide

-G

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2009-10-01 04:17:51

#25

LikeTheMovies Online/offline status of LikeTheMovies is unknown

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If I can get some new o-rings tomorrow I'm gonna try to get the injectors in and I'll mess around with the size and see what happens.

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2009-10-26 17:21:11

#26

PWRDbyUNCLEbens Online/offline status of PWRDbyUNCLEbens is unknown

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I had my vehicle dynoed a week ago, and made 280whp with sti injectors and N60 on a T28 setup. I was taking away 25% on the safc to get the a/f's to around 11.5:1.

You should be able to make 340whp or so at 3 bar. If your goals are under 340whp you can be safe with the sti injectors, just make sure you tune it first.

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2009-11-13 20:10:47

#27

BenFenner

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Here is another data point. This guy had his fow tested at about 550cc. Thanks to LikeTheMovies for asking him.

yellow sidefeed sti injectors for sale - SR20 Forum

Yay incosistency!

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2009-11-13 21:28:40

#28

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Yeah getting a little ridiculous haha I'm just putting them as 535cc in my tune and gonna work with that. Hopefully will be going in tomorrow, have to cut in splice now

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2009-11-13 22:22:33

#29

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Did a little more searching, found a flow test sheet.

http://main.experiencetherave.com/subaru/techinfo/sti_injector_calib.pdf

And another link with some more info.

legacycentral bbs :: View topic - 04-06 STi Yellows 550cc or 535cc??

So I guess there 550s?

Something else, are they denso plugs that we need to use on them? And are the nissans jecs style?

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2009-11-14 01:44:34

#30

gomba

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that's interesting. I just sent my ECU off to JWT last week and talked to the guy, told him I had STI injectors, he said 520cc I said yes..said 605cc @ 4 bar..sooo, once I get a turbo on this car(hopefully in 3 months), I'll have to see how the tune goes @ 520cc.

Chriscar had the JWT tune @ 520cc and said it worked great.

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