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Old 09-12-2007, 09:54 PM   #1
mxpunk
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Default Should I even bother? EJ22 DOHC

I want 350 whp. I have an ej18t right now that im in teh middle of getting together but i want to hit my goal of 350 hp..but this got me thinking..cant I just swap it for around the same price and reach my goal with bolt ons..but at the same time i am thinking it'd be way cool to hit big hp with an open deck 2.2 block and a 20G turbo..

what should i do!?
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Old 09-12-2007, 11:46 PM   #2
reddevil
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I did 12.7 @ 109 with the 2.2 open deck, stock turbo pistons.......
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Old 09-13-2007, 09:33 PM   #3
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i know doug! and thats rad! ..hey thanks for the link to those HG's ..saved myself about $30

but doug..i want to rebuild the ej22e with new pistons and have the thing last me quite some time on 25 psi..i want to rebuild it right the first time so i can drive it, not work on it.

the car is gonna be used for daily driving/fun/track one day/drag here and there...i just wanna drive it!!
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Old 09-13-2007, 10:20 PM   #4
ballitch
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well after using a CR calc. if you use the ej22 turbo pistons with the 46cc dohc ej25 heads and the 1.3mm (98mm bore) HG (on sale on ebay for like $97 shipped for the pair, cometic BTW ) you get around 7.60:1 CR. however, i dont know what compression ratio you want for 25 psi, but i would think somewhere around 8.0:1 would be a good starting point. and of course, it all depends on the tune you give it. thats with no mods to the block except the turbo legacy pistons.



~Josh~

Last edited by ballitch; 09-13-2007 at 10:29 PM.
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Old 09-13-2007, 10:31 PM   #5
2slofouru
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shave the 25 heads for higher cr?
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Old 09-13-2007, 10:33 PM   #6
ballitch
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then your getting the valves closer to the pistons, i personally would like not having to worry about it.



~Josh~
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Old 09-13-2007, 10:34 PM   #7
2slofouru
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..what about shaving the block
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Old 09-13-2007, 10:34 PM   #8
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^ why? i thought with high boost you want to lower the CR alittle.
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Old 09-13-2007, 10:35 PM   #9
2slofouru
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better drivability, more low end torque.... I'm just making suggestions for getting it around 8 - 8.5. Everyone has differing opinions on what CR works "best" for their application
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Old 09-13-2007, 10:42 PM   #10
ballitch
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if it were me, i would want CR in the mid to high 7's just to be safe, remember, he is going to run 25 psi thru a ej22.


~Josh~
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Old 09-14-2007, 06:14 PM   #11
mxpunk
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^ yes..and that is what i want, 25 psi safe. from what i understand I think low-mid range driveability will be almost as good as an NA ej22 but im not sure..even if its not as good..as long as its not as weak as teh ej18 off idle

id go with an sti block but i want to do something different
if i could afford forged pistons id get them and go for 400ish...but ill be content with 300-360 IMO..which i believe the stock ej22t pistons can handle..with careful tuning.
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Old 09-19-2007, 02:22 PM   #12
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stock phase I rods are good to 300-350 whp, is that correct?

im debating whether or not im gonna go with aftermarket rods or not ..

Last edited by mxpunk; 09-19-2007 at 02:28 PM.
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Old 09-19-2007, 02:59 PM   #13
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If you shave the heads/ block you need to "fix" the cam timing.
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Old 09-19-2007, 03:36 PM   #14
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nothing is going to get shaved..
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Old 09-22-2007, 03:36 PM   #15
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should i go with a OEM subaru gasket kit to refresh the block?
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Old 09-26-2007, 10:07 PM   #16
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bump for an answer
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Old 09-26-2007, 10:14 PM   #17
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Old 09-26-2007, 10:38 PM   #18
mxpunk
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notice any problems with oil seepage or anything with those gaskets doug? i really want to daily driver 25+ psi of boost through this thing and want it to last quite sometime..

and will those EJ25 gaskets work on a phase I ej22?

Last edited by mxpunk; 09-26-2007 at 10:43 PM.
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Old 09-26-2007, 11:00 PM   #19
reddevil
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I can't garrantee no seepage, but I rebuilt two motors bearings up using those kits. They had every gasket I needed (note they sell a VARIETY of sets, some are 110% complete, others are not). Search the sellers "list" and you might find a better compatable set. But on the other hand, very few things change from motor to motor, except head gaskets.
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