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I've got these injectors from a twin turbo EJ20R intake:


They are marked with 0R15 and I believe they are JECS injectors based on that part number.

Are these 440cc? I can't find any reliable flow info. If nobody knows I may send them out to Witch Hunter just for the information. This post says 550cc, which seems too high to me, and says they are the sames as v4 STI injectors - anyone know if that's the case?

If anyone happens to know what rails these will work in as well, that would be great info. I have the rails from the EJ20R which will obviously take them but I don't know if those rails will work on the EJ22T.

Thanks for any help!

Found the answer: viewtopic.php?t=38451#p281343

They are 480cc and will fit the stock rails. I should've searched more before posting.

They should fit the 90-91 AT stock rails. I don't believe they will fit the turbo legacy rails.

wtdash's thread says that the 90 AT rails are identical to the 91 EJ22T rails, is that information not accurate?

You are correct, the 90 AT rails not the same as 91 EJ22t rails

I have one of those OR15 injectors right here in front of me. They are the same physical size as the 440 grey top injectors that plugged right into my ej22t rails. They will not go into 90AT rails, as at one time I was told they would, so I got some, and they did not fit the AT rails. I said to myself, WTF, so tried them in the 22t rails and they fit properly, and they continue to do so while I enjoy 234hp and 285 tq.

The picture of that yellow injector in your hand shows a ring in the wrong place. That flat sided ring that is above the bottom flange of the blue cage, should be below the blue cage, and seated up against the lower flat surface of the blue cage.

Interesting.....John can you take a picture of one? Does the bottom portion of the injector protrude out the bottom of the rail?

Thanks gents. Hopefully these will keep up with a TD05 16G better than 440s.

The thread referenced above has rail pics, and from my experience w/the stock, 480's, and 440's, the '90 AT (not MT) rails and EJ22T rails are the same.

The 550 Yellow tops were stock in '04-'06 (?) STi's.....they require the '92-94 NA rails.

OR15 injector with the n/a rails. The or15 injector pintel cap protrudes 3/16" out the bottom of the rail. The upper o-ring just barely reaches the bore, does not enter the bore, and there is probably .025" diametrical clearance, if it did go into the bore. The injector just rattles around inside the bore. Don't think a picture will show this well.

so lets confirm this
these ek20k injectors from a jdm sti are 480 and fit stock rails?

YES. The JDM 440cc (gray) and 480cc (yellow) fit the EJ22T rails.

Apparently they don't fit the '90-91 AT rails......

They really look like they should fit the 90-91 AT rails.....

what about phase1 ej25d rails if they dont work in the ej22t rails?

No....those are for the USDM STi 550 side-feeds, among others....they are the same as the '92-94 NA rails.

Please Search on here as this has been covered, then check back w/questions.

I'll fix my link above to say it apparently won't work on the '90-91 AT Non-turbo rails.

Td

so they fit the turbo rails 100%?