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Old 04-05-2013, 10:54 AM   #1
SubaruImpreza_power
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Question Ej22 questions

So after getting yelled at a few times for trying with the EJ25 I figure do the EJ22..

I'm in no rush so the engine would be one of the last things I would get, I just have a question with emissions, Here in CT they check the OBD-II readiness and they do a check for the cats and a gas cap test, I can't remember if they do sniffer.. My last test I don't think they did..

I'm not looking to do anything crazy at all since it would be my DD, I'm looking to do 5 psi to start off with maybe a max of 7 psi.

I'm wondering which turbo would work best for my application? And for the engine anything I should look for/stay away from? I used to have a 95 Legacy but the car got totaled but it had a nice running EJ22E.

One thing I did not see too much on is the crossmember is it swapped out or left in? From what I looked at so far here (still looking) I would need an upgraded fuel pump, Emanage ultimate and larger injectors? Since I'm in no rush might be a fall project.
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Old 04-06-2013, 01:28 PM   #2
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Question

Another question would the Unique motorsports up & down pipe clear the stock non turbo crossmember?
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Old 04-06-2013, 01:56 PM   #3
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If the up and down pipes were made for a non-turbo conversion then they should clear the stock cross member.

Sounds like you're getting off to a good start. One thing to consider is who will tune it if you go with the e-manage.

Keep reading and good luck
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Old 04-07-2013, 07:43 AM   #4
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Originally Posted by geronimo81 View Post
If the up and down pipes were made for a non-turbo conversion then they should clear the stock cross member.

Sounds like you're getting off to a good start. One thing to consider is who will tune it if you go with the e-manage.

Keep reading and good luck

I thought most here self tuning.. Oh well.. back to reading and taking notes!
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Old 06-07-2013, 09:27 AM   #5
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I swore they had a sticky here?? But for a turbo Ej22 don't I need to use the Ej25 heads to lower the compression ratio?

From what it seems yes but the problem is finding a EJ22 from a Auto so I have EGR to pass emissions it's a bit hard when you search online because they don't list.

Last edited by SubaruImpreza_power; 06-07-2013 at 02:00 PM.
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Old 06-07-2013, 05:06 PM   #6
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No, you don't need to lower compression for low boost
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Old 06-07-2013, 05:18 PM   #7
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Hmm.. so then why do people use the ej25 dhoc heads? Better flow?
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Old 06-07-2013, 05:59 PM   #8
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Originally Posted by SubaruImpreza_power
Hmm.. so then why do people use the ej25 dhoc heads? Better flow?
Better flow amongst other things.
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Old 06-07-2013, 06:01 PM   #9
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Will it make the ej22 a interference engine or not? From what I heard the C/R with ej25d heads is around the low 8's.
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Old 06-07-2013, 11:09 PM   #10
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dumb question but does an '02 aftermarket down pipe work? I'd need to get rid of the first cat but is the pipe long enough or will it need a extension?
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Old 10-14-2013, 09:37 PM   #11
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My EJ25D spun it's bearings on Sunday, before it happened I started getting misfires on 1 & 2.. so time to get started a little early on the ej22e project, are the spark plugs something I'm going to have to play around with? At least it wont be a pain like the DOHC plugs...
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Old 10-14-2013, 10:53 PM   #12
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I would just use the spark plugs that match the head. Are you going to mate the EJ25D heads to the EJ22e block? There is a guy that has done a couple of those and he says they run really well. The EJ25D has small combustion chambers if I remember right so it doesn't lower the compression too much.
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Old 10-14-2013, 10:54 PM   #13
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yeah going to use the ej25d heads, I ordered the cosmetic gaskets like 6 months ago
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Old 10-16-2013, 08:12 PM   #14
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Not saying it is the best way to go but I have read threads where people run about 5 psi with no engine management on the stock ecu. A notched xmember off a first gen turbo legacy is a good way to go or just cut it. Adding the 25D heads would make it an interference engine if I understand correctly. If you are running 5-7 psi why not just use 22E heads? Or find a cheap set of 22T heads and you won't have to tap the heads for oil. Yeah, they are supposedly the worst flowing heads subaru ever made, but I have a great time with my stock 22T shortblock. You could upgrade the valves on a 22T by using 22E valves. And you'd have to do some modification to the exhaust to fit a wrx or aftermarket downpipe.

I'm building a built 22T/205 hybrid to swap into my 95 L, but I kinda want to boost the stock 22E for fun. As far as turbos go a first gen turbo legacy VF11 is a good choice because they are so small and spool up super fast. Either that or a TD04.

There used to be more threads in this forum, what happened?
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Old 10-16-2013, 10:17 PM   #15
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I may do a little over 5 psi.. all depends on how the tune ends up being. I haven't heard anything about modding the exhaust to fit the aftermarket downpipe I assume it's because the 90 degree bend after the first cat on the stock exhaust?
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Old 10-16-2013, 11:00 PM   #16
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Usually the downpipe isn't the right length to match up with the stock cat back and needs to be extended or shortened depending on whatyou get. Are you wanting to keep your stock exhaust for the most part? I see complete turbo back exhausts for sale all the time for cheap off WRX and STis.
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Old 10-16-2013, 11:05 PM   #17
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Wanted to keep most of it.. I have a welder.. but sitting here just thinking about it I was getting the first cat mixed with the 2nd one.. in that case I can see about it might needing to be extended.. I know with my emissions testing they check for cats, and I assume as long as the 2nd one is still in place I should have no issues.
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Old 10-16-2013, 11:22 PM   #18
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Luckily for me they just do a sniff test on my 93 & 95 so when I do the swap on my 95 Ill be fine. Stock WRX exhaust is 2.25 and a second gen like yours is 1.75 or so. I don't know if that is too restrictive or not for forced induction.
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Old 10-16-2013, 11:42 PM   #19
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They dont open the hood or anything, and all they do is hook a scan tool to the OBD port and check for readyness.
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Old 10-19-2013, 02:24 AM   #20
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Not saying it is the best way to go but I have read threads where people run about 5 psi with no engine management on the stock ecu. A notched xmember off a first gen turbo legacy is a good way to go or just cut it. Adding the 25D heads would make it an interference engine if I understand correctly. If you are running 5-7 psi why not just use 22E heads? Or find a cheap set of 22T heads and you won't have to tap the heads for oil. Yeah, they are supposedly the worst flowing heads subaru ever made, but I have a great time with my stock 22T shortblock. You could upgrade the valves on a 22T by using 22E valves. And you'd have to do some modification to the exhaust to fit a wrx or aftermarket downpipe.

I'm building a built 22T/205 hybrid to swap into my 95 L, but I kinda want to boost the stock 22E for fun. As far as turbos go a first gen turbo legacy VF11 is a good choice because they are so small and spool up super fast. Either that or a TD04.

There used to be more threads in this forum, what happened?
I'm running mine on the stock ecu and it is too lean under load in higher gears. I will be purchasing a fmu to correct the AFR. I have thought about dropping in a 25D ecu and injectors to see if that one deals with boost better but I doubt that would be any cheaper in the end.
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Old 10-19-2013, 12:50 PM   #21
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It seems from at least what little I've seen people that do swap the ej22e-t in a Ej25d car they seem to be running a little too rich in the mid range.
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Old 10-23-2013, 03:56 AM   #22
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I'm running mine on the stock ecu and it is too lean under load in higher gears. I will be purchasing a fmu to correct the AFR. I have thought about dropping in a 25D ecu and injectors to see if that one deals with boost better but I doubt that would be any cheaper in the end.
Are you considered about the leaner conditions under load causing engine damage? I've been running like that for a long time without any ill effects. Only 5psi though.
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Old 10-23-2013, 02:45 PM   #23
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Originally Posted by geronimo81 View Post
I'm running mine on the stock ecu and it is too lean under load in higher gears. I will be purchasing a fmu to correct the AFR. I have thought about dropping in a 25D ecu and injectors to see if that one deals with boost better but I doubt that would be any cheaper in the end.
I didn't state this in my earlier post but I will be running the 205/22T hybrid with a 205 ecu and wiring harness merge so it will be fully tunable.
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Old 12-10-2013, 11:12 AM   #24
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When all said and done I want to be able to be tuned and have no issues lol when it warms up a bit more I will double check to make sure my ECU pinous match what I highlighted.

Now what I don't understand is people talk about forcing the car into OL, is this going to be a issue?
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Old 12-10-2013, 09:06 PM   #25
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Are you considered about the leaner conditions under load causing engine damage? I've been running like that for a long time without any ill effects. Only 5psi though.
Well I could feel the car bogging (possibly knocking) if I tried accelerating under load. I was definitely worried about damage. Sounds like it's no really that big of a deal. Just a driveability issue.

I actually did install a fmu that is too high of a rise rate for my MAF car. I am using a homemade boost bleeder to control the amount of fuel delivered and it is running pretty strong. I was also able to turn it up to 7psi which has really woken the car up. It now breaks loose in 1st on wet pavement.
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