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Old 07-14-2014, 02:51 PM   #1
JoshGastley----XRT
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Default Ej22t block with Wrx heads help

Need some help with a hybrid build.... Have searched many times many ways and kinda always come back to the same off topic confusing threads. So if anyone can point me in a better direction feel free. I have a ej22t that has been stroked to 2.34 .... Mated with a set of unmodified Wrx heads. The combo has been running for 7 years now with about 30,000 miles accumulated ... Recently it has pushed coolant out through the overflow bottle.. Indicating HG failure... So when I tore apart the engine it had composite 2.2l head gaskets in it. I would like to go with the Multi layered steel gaskets but Subaru can't help me and I don't have a part number and I'm not sure if the MLS gasket are to thin for piston clearance

So what I am looking for is
1. The correct part number for the correct head gasket for 2.2t and Wrx heads combo

2. How does the head gasket thickness or "thinness" affect compression ratio

3. What is the ideal head gasket thickness for this engine and head combo

4. Is this engine / head combo prone to misfires?

5. Does anyone have any experience with this block head combo can lend any useful info about this setup that I should know

Thank you in advance for your help

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Old 07-14-2014, 03:06 PM   #2
575rider
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Call a tuner shop that builds Subaru motors. I'd recommend www.get-primitive.com, mainly because he was selling 2.2T short blocks and I'm sure has experience putting WRX heads on them.
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Old 07-14-2014, 08:37 PM   #3
JoshGastley----XRT
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Bump for anybody with ej22t with Wrx heads
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Old 07-15-2014, 01:55 AM   #4
fastblueufo
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You need to provide piston specs like bore, cc volume of dish, compression height, need rod length, was deck cut and how much? Were wrx heads decked or any combustion chamber work done or are they stock?
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Old 07-15-2014, 07:31 AM   #5
JoshGastley----XRT
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Which head gasket to use on ej22/Wrx head hybrid?
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Old 07-15-2014, 07:50 AM   #6
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http://www.shopengineparts.com/parts...el=EJ22T+91-94

Any thickness you want... I'd go with stock ej205 thickness.
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Old 07-15-2014, 10:32 AM   #7
JoshGastley----XRT
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Thank you josh p

Still would like to hear some first hand experience
With ej22t/ej205 heads hybrid
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Old 07-15-2014, 06:44 PM   #8
fastblueufo
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Quote:
Originally Posted by JoshGastley----XRT View Post
Thank you josh p

Still would like to hear some first hand experience
With ej22t/ej205 heads hybrid
Read and answer my questions above and I can help you out. You cant just run any thickness gasket. Your piston design and rod length have alot to do with hg choosing. What 79mm crank and rod combo did you use and what pistons did you use? There are different crank and rod journal sizes and lengths that are used in stroking an ej22t. Same with pistons.
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Old 07-15-2014, 08:36 PM   #9
JoshGastley----XRT
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Quote:
Originally Posted by fastblueufo View Post
Read and answer my questions above and I can help you out. You cant just run any thickness gasket. Your piston design and rod length have alot to do with hg choosing. What 79mm crank and rod combo did you use and what pistons did you use? There are different crank and rod journal sizes and lengths that are used in stroking an ej22t. Same with pistons.
Sorry I can't answer those questions... But I may be able to find out . Gimme a quick minute and I'll try to provide that

FYI I had the 2.2t block bought the kit from Crawford and had a local Subaru tech put it together. He obtained the head gaskets and I am sure he did not make a educated choice for the head gasket . As he really only knows about oem engines

Thanks
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Old 07-23-2014, 09:25 PM   #10
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Fuji K ran one of these setups for years, search him.
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Old 07-23-2014, 09:41 PM   #11
69subaru360
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Nothing mls from subaru will work for you. The only 2.2 mls factory gaskets are the 99-01 EJ22 phase 2 and they are too thin to safely use on an EJ22T.

If you want MLS you have to go aftermarket.
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Old 07-24-2014, 12:03 PM   #12
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I run a hybrid stroked ej22T with ej205 heads. I designed my setup to be 8.5:1 CR with the stock ej22t composite HG. I have only heard good things about these HGs. I have had numerous Turbo Legacies with 200K to 300K motors, all with original HGs from the factory. I run 22 psi at 350 awhp on this setup daily. Only have 10K on the motor so far.

You can probably use the ej22e thin HG if you desire. I will be using this HG with my stock ej22t shortblock on my turbo wagon when I convert to DOHC (ej20h heads). Read over on bbs.legacycentral.org. A lot of guys run the thin ej22e MLS HG on stock ej22T shorblocks with the ej25D DOHC heads. The piston quench height is close, but clears.

But you need to find out your current CR first, by finding the specs of the pistons you have. If you go thinner on the HG, you could bump the CR by 0.3-0.5.

Cometic can make a MLS HG to any thickness you desire.
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Old 07-24-2014, 12:32 PM   #13
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Get a stock HG out of a 97-98 EJ22E. Part number is 11044AA542 and thickness is 0.8mm

That's what I'm using on my EJ22T block with WRX heads. Internals = phase 1 crank, manley rods, JE stock bore pistons. MY CR is 8.58:1
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Old 07-24-2014, 04:48 PM   #14
fastblueufo
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Quote:
Originally Posted by KitchenerWRX View Post
Get a stock HG out of a 97-98 EJ22E. Part number is 11044AA542 and thickness is 0.8mm

That's what I'm using on my EJ22T block with WRX heads. Internals = phase 1 crank, manley rods, JE stock bore pistons. MY CR is 8.58:1
I get static cr of 8.8 on your setup. That's if you never had the deck or the heads decked.
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Old 07-24-2014, 11:07 PM   #15
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Sorry I hit the "5" by accident. It is 8.8:1 static CR
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Old 07-25-2014, 02:41 AM   #16
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stock head gaskets are ok aftermarket ok non turbo ej22e are ok


http://forums.nasioc.com/forums/show....php?t=2319484
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Old 07-25-2014, 09:38 AM   #17
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1. I'd run stock 22e HG if not from cometic with slightly thicker if heads and block has been decked.

2. It'll effect it but not too much.

3. Ideal is to run it similar to stock wrx because you are using everything wrx besides the shortblock. Timing components are wrx.

4. Misfires will depend on the health of the motor and parts. Bad plugs, misfire, bad injector, misfire, dying exhaust valve, misfire.

5. You need to know your setup first and what it consists of. It's a stroker build. Think of it a smaller bore 2.5L. There are no pistons out there made with the correct compression height. All custom every time I go about this.



Quote:
Originally Posted by JoshGastley----XRT View Post

So what I am looking for is
1. The correct part number for the correct head gasket for 2.2t and Wrx heads combo

2. How does the head gasket thickness or "thinness" affect compression ratio

3. What is the ideal head gasket thickness for this engine and head combo

4. Is this engine / head combo prone to misfires?

5. Does anyone have any experience with this block head combo can lend any useful info about this setup that I should know
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Old 08-01-2014, 12:14 PM   #18
scoobysquad1
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Default ej22t build

i am also curious cause i am a noob at this will wrx parts fit the ej22t for example the turbo and intercooler
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Old 08-01-2014, 12:27 PM   #19
FuJi K
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It'll fit with modification and alteration.

Quote:
Originally Posted by scoobysquad1 View Post
i am also curious cause i am a noob at this will wrx parts fit the ej22t for example the turbo and intercooler
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