1997-2001 were single port style for EJ22. Also, the Phase 1 SOHC 2.2 heads all have 41cc chambers. As far as the oil "tunnels" in the cams, Subaru was looking to remove as much internal drag as possible to achieve better emissions numbers. That's why the EJ22E was changed radically from the dual port version for 1996-1997. Though the Phase 2 EJ22 is radically different from the Phase 1 EJ22 single port, it kept a few of the same upgrades, all to satisfy emissions standards for the time. Hope this helps!
The turbo head is also larger in the combustion chamber to reduce compression ratio. The rocker towers on the turbo are heavy duty compared to NT. Thanks for the tour. Planning on turbocharging my EJ22 and this heads up is valuable. Hydraulic and std adjusters use different cam lobe profiles. Not necessarily interchangeable. Bear in mind the roller camshaft has a hardened surface for the roller, where non roller cams typically are not hardened. The Turbo head looks like it was assembled without washers under the head bolts. Odd for Aluminum heads. Or incorrectly built.
Everything I've found has the combustion chambers on Phase 1 SOHC engines being the same (43cc). The turbo pistons have a bigger dish (28cc) vs the NA engines with 14.5cc pistons, which is how they get the change in compression.
Did you measure the valves diameter? I might have to change my EJ22T valves as pretty much all my intake valves are leaking badly (I don't know if the problem is the valves and/or the seats) and it will be damn near impossible to source Turbo valves. Hoping non turbo valves are the same, at least measurements wise.
Sorry for the late reply. I don't know why this never showed up. I remember seeing that one had slightly bigger valves, and I think it was the 22e models. The cam lift also changed every 2 or 3 years it seems, but that doesn't really affect the valves.
good video! and very well explained. I'm from Uruguay I want to buy a legacy 93' gx, maybe it sounds crazy but do you think it's possible to change the cylinder and make it turbo?
Do you know the OE specs for the headgasket thickness? I can't find any reliable info on the net and did not find anything in the service manual about it, only the part # which is discontinued since ages and provides no specs whatsoever. I asked Cometic and they told me 0.030" but I find it really thin and hard to believe.
Getting harder. They only came in about 8000 cars from 91-94 so definitely getting rarer every year. Probably won't pay less than 600usd for case halves these days
Will's Builds on Facebook and Instagram with the same profile pic that's on here. Direct links in the description of this video. I removed your email so it's not public to other users. My email is on my Facebook page as well.
So I have a 96 impreza. Ej22e. Bout to rebuild the motor. My heads are single port single cam. Would it better to rebuild my heads or go with something different. I'm going to bore the block to .10over
Depends on power goal and budget. Finding earlier ej22e or ej25d heads will get you dual port, which are easier to find turbo headers for. But ej25d heads will require a different intake and timing belt setup, adding to the cost.
i got 270000 on my ej22 98 legacy, it has single port headers.. original head gasket. its leaking from the oil galleys on the bottom, i may try stop leak but it only leaks about 1 qt every 3k.. not sure when i will do a rebuild ..
Yea as long as the exhaust port is the same. I believe most, if not all, 96-99 SOHC heads have a single port exhaust while the turbo heads (and earlier SOHC heads, 90-94ish) are dual port exhaust. The heads will interchange but exhaust manifold will not.
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1997-2001 were single port style for EJ22. Also, the Phase 1 SOHC 2.2 heads all have 41cc chambers. As far as the oil "tunnels" in the cams, Subaru was looking to remove as much internal drag as possible to achieve better emissions numbers. That's why the EJ22E was changed radically from the dual port version for 1996-1997.
Though the Phase 2 EJ22 is radically different from the Phase 1 EJ22 single port, it kept a few of the same upgrades, all to satisfy emissions standards for the time. Hope this helps!
And consequently the ej22e has shorter piston skirts too. Which leads to the infamous piston slap.
The turbo head is also larger in the combustion chamber to reduce compression ratio. The rocker towers on the turbo are heavy duty compared to NT. Thanks for the tour. Planning on turbocharging my EJ22 and this heads up is valuable. Hydraulic and std adjusters use different cam lobe profiles. Not necessarily interchangeable. Bear in mind the roller camshaft has a hardened surface for the roller, where non roller cams typically are not hardened. The Turbo head looks like it was assembled without washers under the head bolts. Odd for Aluminum heads. Or incorrectly built.
Everything I've found has the combustion chambers on Phase 1 SOHC engines being the same (43cc). The turbo pistons have a bigger dish (28cc) vs the NA engines with 14.5cc pistons, which is how they get the change in compression.
Here in Aus some of our NA ej22's have the dual port head, my 98 for example does (phase1)
Yea early NA EJ22s are dual port as well. For whatever reason, around 95 or 96, they decided to use a single port
I have a 95 na Impreza with the ej22 and it's exhaust ports are dual ports, I think it's stock heads but it doesn't have a turbo
Thanks for the comparison I have a 97 2.2l Impreza. Good to know what I'm dealing with.
Yea 97 should he pretty much identical to my 96 head.
Did you measure the valves diameter? I might have to change my EJ22T valves as pretty much all my intake valves are leaking badly (I don't know if the problem is the valves and/or the seats) and it will be damn near impossible to source Turbo valves. Hoping non turbo valves are the same, at least measurements wise.
Sorry for the late reply. I don't know why this never showed up. I remember seeing that one had slightly bigger valves, and I think it was the 22e models. The cam lift also changed every 2 or 3 years it seems, but that doesn't really affect the valves.
Definitely larger intake valves on 22e, I think ex valves are the same, diameter at least.
good video! and very well explained. I'm from Uruguay I want to buy a legacy 93' gx, maybe it sounds crazy but do you think it's possible to change the cylinder and make it turbo?
Do you know the OE specs for the headgasket thickness? I can't find any reliable info on the net and did not find anything in the service manual about it, only the part # which is discontinued since ages and provides no specs whatsoever. I asked Cometic and they told me 0.030" but I find it really thin and hard to believe.
what do you do to remove the valve springs safely?
Im from Australia how hard is it to find a ej22t short block these days there in USA?
Getting harder. They only came in about 8000 cars from 91-94 so definitely getting rarer every year. Probably won't pay less than 600usd for case halves these days
@@WillsBuilds how can i dm direct or give my email
Will's Builds on Facebook and Instagram with the same profile pic that's on here. Direct links in the description of this video.
I removed your email so it's not public to other users. My email is on my Facebook page as well.
i'm trying to swap99 subaru to ej2.2 instead of 2.5
Have fun! It'll probably lose a little power compared to the 2.5, but the 2.2 is a stout engine!
So I have a 96 impreza. Ej22e. Bout to rebuild the motor. My heads are single port single cam. Would it better to rebuild my heads or go with something different. I'm going to bore the block to .10over
Depends on power goal and budget. Finding earlier ej22e or ej25d heads will get you dual port, which are easier to find turbo headers for. But ej25d heads will require a different intake and timing belt setup, adding to the cost.
i got 270000 on my ej22 98 legacy, it has single port headers.. original head gasket. its leaking from the oil galleys on the bottom, i may try stop leak but it only leaks about 1 qt every 3k.. not sure when i will do a rebuild ..
Yea they're pretty solid engines if you take care of them
Iv seen engines with stop leak all gumped up .. not sure I may just get a hoist and rebuild the engine ...
Is a ej22e a interference design? My Subaru build date 07/97
I believe 96 and newer are all interference.
@@WillsBuilds damn :(
Could I just swap the heads to swap na to turbo easier?
Yea as long as the exhaust port is the same. I believe most, if not all, 96-99 SOHC heads have a single port exhaust while the turbo heads (and earlier SOHC heads, 90-94ish) are dual port exhaust. The heads will interchange but exhaust manifold will not.
@@WillsBuilds okay sweet. So I'll have to cut and weld a little bit. Looking at a 1996 2.2l it's 1800.