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Old 06-03-2010, 03:42 PM   #1
Jspike
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Default Blown 2.0t swaping for a 2.2t

So here’s my story.
A few months ago my 04 WRX developed a fatal knock which has left me with a paralyzed car. Lucky for me that where I live we have a free public transportation system. I have done my research and have proceeded to purchase parts to build a new motor. I have always been obsessed with the closed deck 2.2t block and picked one up. *I orgionally picked up a set of 20g heads from the UK and had them shipped over to the states but later found that the phase 1 stuff wouldn't work with my build. So I sold those heads and picked up a set of v8 big port heads and wiring so I can run the AVCS. I thought about starting a new thread but decided just to edit this OP because there is good info on differences between phase 1 and 2 heads.* I still need to pull the 2.0 motor that’s in my car and inspect it to see what failed then sell the parts that I am not using. I plan to pick up a set of H beam rods and am going to have custom 9:1 compression pistons made for my build. So this will be the start to the chronicles of my new motor. I have done the research but am still building my first Subaru motor so I am excited to see the finished result. I will continue to update this post with pictures as I pull my old motor and discover what failed. Also I will post pictures as I do my build up of the motor. So please comments and tips are more than welcome.


Here is what she used to look like right after I blew the motor.

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Last edited by Jspike; 06-29-2011 at 08:52 PM. Reason: Learned the difference between phase 1 and 2 heads
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Old 06-03-2010, 03:57 PM   #2
Cbgrandtheftauto
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What are your plans with the v2 heads???
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Old 06-03-2010, 04:37 PM   #3
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I'm going to have them inspected and use them in my build. They are the big port 38mm. I was thinking about building my WRX head but ended up getting the v2 heads for about the price of cams for the stockers and they only have about 40,000 miles on them
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Old 06-03-2010, 05:36 PM   #4
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V2 heads will not work with GD '02+ WRX electrics. The cam pullies and sensors do not match up.

My suggestion would be to sell the V2 heads and put the proceeds towards heads or headwork that will be compatable.
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Old 06-03-2010, 05:52 PM   #5
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/\/\/\

RallyColt beat me to it, those heads wont be just plug and play with a GD ecu, wiring, etc.
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Old 06-03-2010, 06:01 PM   #6
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oh? any chance that i can just use the sensors/pullies from the gd and what not to make them work? from looking at the brackets they look like they should just swap over with no problem

Last edited by Jspike; 06-03-2010 at 06:12 PM.
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Old 06-04-2010, 12:43 AM   #7
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Quote:
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oh? any chance that i can just use the sensors/pullies from the gd and what not to make them work? from looking at the brackets they look like they should just swap over with no problem
The phase2 cam gears do not swap over DIRECTLY to phase1 cams. This is because of the difference in cam gear to camshaft. The pick up points are also different. If you want it to be a direct swap get a head that's from 99-01 GC8; EJ205/EJ207. You will still need to swap cam gear to your WRX. This will allow you to run these already good flowing heads with your EJ22T.

I run a '06 WRX swap with the EJ22T block (built). They mate up VERY well.
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Old 06-04-2010, 08:50 AM   #8
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sweet thanks for the advice. and chance I could use phase 2 cams in the phase 1 heads? also are you running the phase 1 crank in your 22t?
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Old 06-04-2010, 10:23 AM   #9
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Phase 1 cams won't work in your heads either...for my stroker I kept the #3 thrust bearing from phase 1 on my 79mm crank

Last edited by Cbgrandtheftauto; 06-04-2010 at 10:30 AM.
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Old 06-04-2010, 11:09 AM   #10
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i have the v2 heads and was wandering if i could use a set of cams for a gd phase 2 in the heads with proper sensors to have them work in my set up. I'd rather not sell the heads if i can help it. so with the crank i can use the phase 1 crank in my set up. I plan to keep the stroke the same (i.e. not a stroker). sorry i am still learning as i go through this process and am very thankful to have all of you helping out.
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Old 06-04-2010, 11:11 AM   #11
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i think i have everything down with the lower end its mostly the snag about the heads i'm trying to figure out. I am still a few months away from starting assembly so if i can work out the kinks now that will make thing smoother in the end
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Old 06-04-2010, 11:33 AM   #12
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i just got off the phone with the guys at crawford performance and they were saying they do not think there will be any issues since both heads use a magnetic pick up. that i should be able to still use the v2 heads in my build
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Old 06-04-2010, 12:12 PM   #13
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Your going to run into the point where you will need to decide if the money you will throw at the V2 heads to make them work is worth keeping them. V7+ heads are not as expensive as they used to be, and are argueably as good as early V2 heads.

Let me phrase it this way...If there was a cost effective way to put early heads on a GD it would already be documented here at least once. I'm all for pioneering, but we are going on almost 10 years of GD knowledge...and I haven't read about it being done yet. (doesn't mean it can't)

Custom cam gears will get it done. Or maybe you can somehow graft "new" pickups into the early cam gears? Really early EJ20G cam gears are metal and might be easier to work with than the phenolic ones if your thinking of modifing something.
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Old 06-04-2010, 01:14 PM   #14
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Thankyou very much for the info. I think I may look at trying to use a newer set of cams in the v2 heads, bill at crawford and brian at tarmac-usa both thought I should be able to use the sensors and cam gears on these heads to make them work or at the very least use newer cams on them. They said mostly to check the cam alignment dows and a few other things but all in all I should be able to make them work with very little hassle. Also they said this should be easier than moding AVCS cams to work in non AVCS heads (no my car does not have AVCS it is just a WRX). I still need to pull my old motor and compare the parts. I totally understand about the cam gears from the phase 2 cams not fitting on the phase 1 cams but there should be no reason that phase 2 cams would not work in these heads considering the sensor bracket is the exact same. I am hoping that I can make them work and will see how it progresses. I will keep everyone informed as to how it works out and may even do a write up on my findings considering it has been hard to find info on this subject on the forum.
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Old 06-04-2010, 01:49 PM   #15
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IIRC, the thrust surface on the cams is different between phase 1 and phase 2 heads, keeping them from being interchangeable.

A quick search for cam and head pics should give you a solid start on that answer.


Those companies have a good reputation, but if they have never tried it either then you need to look at thier advice the same way you would look at ours.....with caution.
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Old 06-04-2010, 02:42 PM   #16
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I try to take it all into account and am quite excited about this whole thing.
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Old 06-04-2010, 03:02 PM   #17
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Once I have my 2.0 heads out and next to them I will be able to determine more about the validity of my thoughts and those of everyone else. I think this thread is a little preemptive since I am still a little ways away but I very much appreciate the concerns as to the more gremlins I can work out before the motor is together the less there will be once its in (though there are always issues that are unforeseen)
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Old 06-04-2010, 08:36 PM   #18
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They both THOUGHT..... thats no no. I sometimes "think" as well... but I always will test to see what I can do. I've compared these things. I have had them in my possession at one point.


You have yourself your '04 WRX heads. They will be the ideal ones to use.
A bit of hassle to get some old skool head to work with new skool technology.

New skool cams EJ257 top, EJ205 middle compared to old skool cam on '96 EJ25D head(same casting as EJ20G)

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Old 06-04-2010, 09:43 PM   #19
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Now don't i look like an idiot. But really thank you very much for the pics it explains a lot that i was having trouble figuring out. I should have done some more research before I bought these. It looks like I have a set of STI v2 heads for sale any thoughts on what these are goin for these days?
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Old 06-04-2010, 10:30 PM   #20
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I was thinkin about asking $700 for the v2 heads and $200 for a v2 intake mani anybody think that to high?
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Old 06-04-2010, 11:39 PM   #21
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Old 06-05-2010, 10:49 AM   #22
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sweet thanks for the advice. and chance I could use phase 2 cams in the phase 1 heads? also are you running the phase 1 crank in your 22t?
my block is machined for phase2 #5 thrust. I'm using a WRX EJ205 crank dual crosscrilled crank.
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Old 06-05-2010, 12:06 PM   #23
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I've read mixed review about crossdrilling cranks. I've been thinking about which way that I am going to go with the crank and I think I am just going to use the stock 22t crank I am just worried about bearing play where the #3 bearing would be if I used a crank with #5 thrust.
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Old 06-05-2010, 02:26 PM   #24
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IIRC, Fuji's crank is crossdrilled OEM by Subaru.

Nothing wrong with the 22t crank either. All the phase 1 75mm cranks are basically the same..from N/A EJ18, to the EJ22 and EJ22T, to the EJ20K STIs.

From what I have read the switch to the #5 thrust was a reliability thing. On a built motor that gets re-bearinged and re-ringed twice as often as stock, the #5 thrust location loses much of it's value.

Most switch to #5 to use a phase 2 EJ25 crank (stroker w/52mm bearings) or to use the newer factory cranks (nitrided, crossdrilled).
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Old 06-05-2010, 02:31 PM   #25
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Quote:
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I was thinkin about asking $700 for the v2 heads and $200 for a v2 intake mani anybody think that to high?
Yep,
Whole long blocks go for that amount
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