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Old 02-02-2009, 06:54 PM   #1
Abest10
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Hello im in the process of turboing my 2.2 from a 98 impreza. I took the heads and everything looks great. Clean as a whistle. Was going to go with DOHC heads but that was more work than I had planned. I think im just going to use my stock heads or go with 91 Legacy turbo heads.(EJ22T) If I use my stock heads that uses a single port exhaust manifold would I have notch the crossmember or not. I know I have to notch it if I have run dual port not sure about single. Also would my stock 98 2.2 intake manifold fit with EJ22T heads? I looked into but couldnt find info. If I was going to run single port exhaust manifold how would I incorporate the uppipe? Im going to replace the water pump with a turbo one like WRX or Legacy Turbo. Also I have a headgasket question. Will I get one for the 2.2 block or for the heads. I've always been told you use the one for the block but could someone verify this? Any help is greatly appreciated. Thanks!!!
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Old 02-02-2009, 09:07 PM   #2
2.5rsDOHC
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the real question you have to ask yourself is how much money are you willing to invest to insure reliability (such as is this going to be a daily driver?) and next question is what type of goals do you have in mind as far as power or future plans for your build

and Im not sure about the headgasket but IIRCC you should match the heads... thats what I did with my ej22t build with my dohc heads
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Old 02-02-2009, 09:59 PM   #3
Abest10
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Thanks for the input. I want to be a good,fun,reliable,budget car. I want to have fun with but I bought it for $300 so I dont want to dump alot of money into it. Me and my buddy have the parts so we are putting it together. I just want to have a nice little boosting car. The VF11 turbo im going to be running has the wastegate at about 6psi which should be safe for my build.
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Old 02-02-2009, 11:51 PM   #4
2.5rsDOHC
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so basically your looking to see just how far you can get before it blows or breaks lol which is ok cause for $300 i would probably do the same

I'd say with a set of low comp pistons perhaps some from an ej22t if you have parts available or just the whole bottom end would be even more so desireable, and say an SAFC to dump fuel at it in boost so you dont detonate, a used TMIC and even a thicker head gasket wouldnt hurt to lower your C/R a bit but you'll probably be alright (might wash your cylinder walls clean from all the fuel your dumping at it but enhh it comes with the whole cheap build aspect)

but with the whole heads issue I would jus go with the DOHC and get a decent set of used headers and up-pipe

Last edited by 2.5rsDOHC; 02-03-2009 at 12:01 AM.
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Old 02-03-2009, 12:18 AM   #5
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that is old enough you wont have learn around problems with an emanage - i would go emanage blue for EM because it has a airflow meter setup that will work and do timing and fueling with it. i had a vf11 for a few days....its such a weak turbo, so small - i would suggest going with a TD04 set to wastegate (8.5psi when i had mine setup like that) and with the emanage run 440 wrx injectors with a parallel fuel setup. for exhaust - notch the crossmember or get a turbo one, and run aftermarket wrx exhaust like header/upipe and the catbacks for wrx will also bolt right up perfectly (except the rear axle hanger which you can either ignore or have an arm welded on to extend it) ....thats bout all i can think of right now, but turbo can be done easier on those older phase 1 setups
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Old 02-03-2009, 06:29 AM   #6
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Thanks guys. I just picked up a 06 wrx intercooler. I know the vf11 is a small turbo but I just want to get the turbo motor running correctly and then upgrade to better stuff.
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Old 02-03-2009, 06:12 PM   #7
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Quote:
Originally Posted by master c View Post
notch the crossmember or get a turbo one

a custom up-pipe would work better and be easier if you have someone who can weld IMO

cutting the subframe doesn't appeal to me so much but i know it works
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Old 02-04-2009, 05:17 PM   #8
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thanks so far. Im going with EJ22T heads with EJ22T headgaskets which should lower the compression a little bit
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Old 02-04-2009, 09:10 PM   #9
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Quote:
Originally Posted by Slacks View Post
a custom up-pipe would work better and be easier if you have someone who can weld IMO

cutting the subframe doesn't appeal to me so much but i know it works
the advantage to the crossmember swap/notching is the fact you can use stock or aftermarket WRX/STi headers and up pipes - hence availability increases for parts at a cheaper price. the best way is to swap crossmembers to an older legacy turbo x-member because its a direct swap
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Old 02-07-2009, 12:02 PM   #10
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Better to get a turbo cross member so you aren't cutting up the stock one.
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Old 02-07-2009, 10:23 PM   #11
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thanks for the input guys! actually tracked down a turbo crossmember so no cutting required and everything will clear fine.(fingers crossed
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Old 02-08-2009, 01:38 PM   #12
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Quote:
Originally Posted by Abest10 View Post
thanks so far. Im going with EJ22T heads with EJ22T headgaskets which should lower the compression a little bit
This will be just fine for the kind of build you are doing. The EJ22 NA block can take quite a beating. At the boost pressures you plan to run I wouldn't worry about it at all. Just give it a bunch of fuel and you'll be fine. If you can get the Ej22T pink injectors and fuel rails with the heads just run those. You don't need to hassle with WRX injectors or any of that rubbish.
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Old 02-08-2009, 08:29 PM   #13
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Thanks for the help guys. Did a mock up of it today using the Legacy Turbo heads, wrx headers and vf-11 turbo and uppipe


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Old 02-10-2009, 10:23 AM   #14
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You should take a picture of you sitting there in the ground pretending to drive that thing.
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Old 02-10-2009, 10:42 PM   #15
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^^^^^ Yeah, that pic but wearing a helmet would be hilarious.

Good luck on your buildup, i hope you have a lot of fun with it!
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Old 02-11-2009, 03:24 PM   #16
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Very cool i am looking to do the same thing on an impreza L wagon. I amtrying to find an ej22t but actually finding one is turning out to be very difficult. Does anyone have any suggestions on a good place to look for one? I live in the hudson valley.
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Old 02-11-2009, 03:46 PM   #17
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^^ try and source a 91-94 legacy turbo cheap is my advice. If not turbo the na 2.2 like me. and just got back from picking up the ej22t headgaskets, intake manifold gaskets, and water pump gasket. Just keeping the ball rolling on this project. keep up the good advice you guys have given me so far. thanks!
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Old 02-16-2009, 03:25 PM   #18
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I confirmed that any phase I intake manifold and phase I heads will work together. I ordered the ej22t intake manifold gaskets and they are the EXACT same as my 96 and 98 phase I 2.2s. the red one is a 91 Legacy turbo ej22t manifold and the silver one is off a 98 impreza with a 2.2. they bolt the same and use the same intake manifold gaskets.


Last edited by Abest10; 02-16-2009 at 07:11 PM.
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Old 02-16-2009, 05:14 PM   #19
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Not to try to steal the thread, but im in the same boat, the only exception is that i have a 1992 legacy turbo and a 1998 impreza 2.2L. I dont want to swap the ecu and harness the reason being lack of tunning for the EJ22T ecu. I would like to use the legacy turbo shortblock and bolt the EJ22 NA heads along with the intake and run the stock wiring harness in the impreza. But as stated before by ABest10 that all phase1 intake manifolds work with phase one heads. SO if i were only to swap the intake manifold off of the impreza would all the sensors work on the legacy head and block. EM would be in form of a PP6. Open to suggestions.
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Old 02-16-2009, 06:58 PM   #20
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i've also heard that the NA heads have 1mm larger intake valves along with roller rockers...is this true ive searched and only came up with bits and pieces no hard facts.
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Old 02-17-2009, 11:53 AM   #21
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I have a 97 OBS that I did a 18t swap into. I replaced the crossmember from an 02 wagon wrx. I have a TD04 turbo, jdm sti exhaust manifold, ej22 intake manifold, 3 inch turboback exhaust, ebay uppipe, RRFPR, custom parallel fuel lines, stock fuel pump, 550cc injectors, fmic, aem wideband, msd coilpack and 8.8mm msd wires with ngk bkr6e plugs. all of this is run by the stock ecu on 15 lbs boost. I'm also now running 100% E85. I did have emanage blue but the POS took a **** on me so I pulled it out. The car runs very strong and will keep up with a stock STI through the quarter mile. I've been running this set up for about 3 months now and have taken it on a few road trips over 1000 miles each and it hasn't given me any problems at all. The engine is completely stock and has a compression ratio of 9.5:1. The head gaskets are stock and is using stock head bolts. In fact the engine had 145k miles on it when I put it in and I didn't even change the rings or bearings. I rarely shift before 4k rpm and I'm always boosting everywhere I go. Part of the reason for this is to see just how much this engine can take b4 taking a ****. Only downfall is the 10 mpg but that's alright cause I'm only paying 1.49 a gallon for fuel. I was thinking about building a 2.0 with 22t heads but I really don't see the purpose of using such a low compression motor when I've pretty much proven that the 18 will take the boost that a 20 will. Some more air flow would be nice for higher end power but I'm pretty damn pleased with what I have now.
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Old 02-23-2009, 05:09 PM   #22
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so what gains can you expect from this?
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Old 03-05-2009, 10:15 PM   #23
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mybluesubi what rrfpr are you using and what ratio?
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Old 04-21-2009, 11:12 PM   #24
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what are the head gaskets i should get to lower my comp. ratio in my EJ22e ? im trying to get it lower without doing pistons and rods
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Old 04-22-2009, 03:58 PM   #25
Abest10
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I used the ej22t headgaskets from the 91-94 Legacy turbos. I guess the wrx and sti would work too just not sure of the comp ratio.
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