91 legacy 22t build

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

91 legacy 22t build

Post by Sinix3 »

alright so i have some questions for you guys as i have quite a few.
i have two cars a rusty as hell 94 turbo wagon 22t. and i have my 91 n/a 2.2 legacy wagon.
my plaan is to use a set of 20g forester heads that i was told would net me around 7.7:1 with aforementioned heads. with this build will i have to use the 20g intake? if so can i use the wiring from the 222t intake on the engine so i can use the wiring and ecu out of the 94. oh what would be an ecu that i can easily tune without some crazy expensive program and years of training haha.. i know it is alot of work but i enjoy projects. if this will all work ill start a build thread. sorry for the crazy long post. hopefully some one can help me out. thanks guys
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
canadianbc5ra
In Neutral
Posts: 28
Joined: Sat Aug 22, 2015 12:09 am

Re: 91 legacy 22t build

Post by canadianbc5ra »

Start with reading and doing searches on here. This site is a wealth of information on that head swap. Its well documented. However, you can use the 22T harness with minor modification. You will need to use the 20G intake manifold and because you are changing over to DOHC heads you will need to run the ECU for a 20G. Robtune, Revtronix (if you can find one) or an aftermarket ECU (like the Link G4 or others) are some of the options for tuning. Again I stress that you should really start with becoming best friends with the search function on this site.
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

Iv tried to search but havent had much luck on the heads. I found a fellow subaru guy on a facebook group who said i could run the 20g heads and then run a 25d intake. I have a 96 25d intake (i have alot of parts) i plan to get it tuned if i can find a place in my area..
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

i did a compression test on the car, 150-155psi on all four cylinders after 5 cycles. i did an oil pressure test and it was 85psi cold idle and 30-40psi warm idle, as soon as rpm increased it jumped to 90psi. would i be able to theoretically put on the g heads with the stock internals until i can afford forged internals??? and what kind of boost could i run safely for a daily? any help appreciated again thanks guys
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

After all this time iv made some progress with this engine. Stripped it down. Sent it out for forged internals (97.5 pistons and h beam rods i belive)
Im going to try and run it on the 22t ecu for now with 20g injectors and turbo. Im thinking of using 97 sf5 20g heads. Was going to use the 20g intake but it doesnt fit with the throttle body and the 20g throttle body doesnt work with the 22t harness iv heard. I have a 25d intake i was going to run and so far thats all iv figured out. Waiting on the parts to come back from the machine shop then ill be putting it together
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
mike-tracy
Moderator
Moderator
Posts: 5000
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: 91 legacy 22t build

Post by mike-tracy »

Couple of comments: The car will run 10x better with injectors matching the ecu. Don't be like CJ and only have power at the very top end, and struggle to get 16 mpg, with his really old setup ;)

If you use the older ej20g manifolds, the ones with NO coil pack factory mounted to the top (89-94 Legacy turbo and 92-96ish wrx/sti) then the ej22t harness is plug and play. No clearance issues with the throttle body. Some people mount a coil pack to the firewall, others to where the AC went with a home made bracket. Down the road if you switch to a JDM 89-94 Legacy turbo and 92-96ish wrx/sti 4-plug ecu, you can even run invidual coil on plug.

The Forester and other ej20g engines, the manifold with the coil pack mounted to the top, is the one that you're thinking about: clearance issues, wiring harness doesn't plug in, etc.

The ej25d manifold can and does work. My roomate used that as the basis for his ej20k heads (same generation of heads as your Forester ej20g heads)/built ej257 block in his old car. It's just not as "clean" a solution compared to the old style ej20g manifold. But it gets the job done from what i've seen and read.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
mike-tracy
Moderator
Moderator
Posts: 5000
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: 91 legacy 22t build

Post by mike-tracy »

Also, I just remembered. In order to run the ej20g Gray or ej22t pink injectors, you need to grab some ej20g (old style) fuel rails.

The newer style ej20g manifolds don't have removable injector rails, so that's another strike against it.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

Thanks for the info. Im going to the local pick and pull tomorrow to try and find some older rails. For the grey tops. I dont like the idea of using the 25d intake but right mow its all i cam find.
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

Hey Mike, my old motor was fun on the top end. Don't be a butthead :-P
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
wtdash
Fifth Gear
Posts: 2345
Joined: Fri May 04, 2007 4:09 pm
Location: N. ID

Re: 91 legacy 22t build

Post by wtdash »

Sinix3 wrote:Thanks for the info. Im going to the local pick and pull tomorrow to try and find some older rails. For the grey tops. I dont like the idea of using the 25d intake but right mow its all i cam find.
In case I missed it...WHERE are you located? You'll not find EJ20G rails @ a USA yard. I've seen them on NASIOC, Ebay UK, etc.

And there are no USA DOHC rails that support those EJ20G 440's (450cc) grey-top side-feed injectors. The DOHC intake's rails are not compatible w/the SOHC intake and vice versa - @ least not w/out some modifications.

ATM, I can't recall what injectors fit the EJ25D intake and rails and work /the EJ22T ECU - the '04-'06 USA turbo Subaru '550's (525cc) yellow side-feeds fit, but your Ej22T ECU won't run them. The 550's work well w/the Rob Tune.

Not sure why you're not liking the 25D intake? I used a JDM version on my DOHC build - only diff was no EGR valve - and it worked great.


To reiterate above, you can't 'tune' the Ej22T ECU - unless you know something all of us don't? The closest thing was the old Revtronix chip - long gone. You can use an FCD and manual BC to get over the stock boost limit, but that's inviting trouble. You can ADD a Piggy-back, like the PP6 (still avl??) that have been used.

The next best option is the Rob Tune or an ESL-board.Or run a stock Ej20G ECU - the Z4 version was a good one.

Also, what CR are you looking @ w/your forged pistons? Stock is 8:1.

Td

Edit: I had a set of EJ20G rails, but think I sold them...if you're interested, I'll double-check this week.
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

im located in canada. lower end of bc. cr im hoping for is around 8.5 dont have allmy info right now but i think thats what we came out with.and the reason i didnt like the 25d intake was because of the egr. im working on cutting it off in my down time. as for ecu and boost level. at the moment im just going to run it on 22t parts until i can afford a stand alone. but i may get that before i instal the engine. picked up a shell a few weeks ago that has alot less rust than my current wagon so i may take my time and built that one.any ways im not sure how to quote yet. i was under the impression i couldnt run the jdm intake because of the iac and throttle cable position.and i was told i cant use the throttle body from the 20g with the 22t ecu. not looking for tons of power currently just want boost hah. thanks for the help guys
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

Some of us that used the jdm intake manifold made a 1/4" spacer out of aluminum and flipped the throttle body upside down to use our throttle cable.

If you scroll through my build thread there might be some pictures in it. Kimo did that as well.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

http://s1315.photobucket.com/user/xxsin ... q.jpg.html
http://s1315.photobucket.com/user/xxsin ... 8.jpg.html
http://s1315.photobucket.com/user/xxsin ... y.jpg.html

i dont know if these will work but thats the pistons the 22t ecu i have and the 20g i have. was planning to merge the 20g into the 22t ecu but then i was told it wouldnt work
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

The pictures aren't showing up.

Merging won't work for the 22t ecu. What you need to do is put your 22t engine harness on the jdm manifold. You might have to peel some tape and plastic off to move some plugs around to make everything plug in to the jdm motor.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

do you have a link to the build thread? id love to be able to run the 20g intake since it has the coolant res mounts
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

ooooooooooh! i didnt realise it wouldnt work just because it sat to far back. well thats an option. looks like ill be making a spacer. thanks alot!! that makes things easier.
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

You're welcome.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

well i have a few more days off perhaps ill make one. how thick did it need to be for the throttle cables to work properly?
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
cj91legss
Fifth Gear
Posts: 6322
Joined: Fri Jun 20, 2008 8:17 am
Location: Lakewood, Wa 98439
Contact:

Re: 91 legacy 22t build

Post by cj91legss »

As mentioned above, we used 1/4" aluminum.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Legacy777
Site Admin
Site Admin
Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: 91 legacy 22t build

Post by Legacy777 »

I fixed the links for the pictures above.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Sinix3
In Neutral
Posts: 31
Joined: Fri Jul 31, 2015 3:38 am
Location: lower mainland bc

Re: 91 legacy 22t build

Post by Sinix3 »

Thank you. Still trying to figure out how to post pictures properly
91 legacy wagon 22 na
93 legacy wagon eg33 swap under way
Legacy777
Site Admin
Site Admin
Posts: 27884
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: 91 legacy 22t build

Post by Legacy777 »

Photobucket usually has a thing to copy bbcode. That's what you need so the picture shows up in the thread. The only issue with that is if the picture is really big it can take a while to load so if they're big pictures I usually just post the links and people can click on them if they want.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Post Reply