Hi Ben,
OEM EJ22T pistons are factory turbo pistons. I think you should have no problems at 15 psi since overseas I think 12 psi is stock boost, and guys go to 15 and more quite regularly.
I also forgot to mention JE Pistons. Probably the most popular Japanese subcompact aftermarket vendor right now. Check them at http://www.jepistons.com/
The EJ20T and EJ22T block have the same external dimensions, but the exhaust manifold comes off the heads which *MIGHT* have slightly different port spacing or bolt patterns. It is another one of those "MAYBES" that could cause one more bit of grief for a swap, but at least not a showstopper. Somebody out there with first hand experience please help on this one.
Ben's engine pistons and exhaust
Moderators: Helpinators, Moderators
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Gary Grahn
Ben's engine pistons and exhaust
Make sure that if you order JE Pistons you do not call their techs. They have no idea about clearences for their pistons. A better bet would be Ross (http://rosspistons.com). You can send them your original NA Piston and tell them what you want done. IE, I am going to be turbo. And they will have a few questions for you, but will build them. FYI, thes pistons (Ross) are also the same pistons used by the 8sec Talon from Extreme motorsports....
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Mark Ward
Ben's engine pistons and exhaust
What do you mean that stock boost is 12lbs??? I thought it was 6 lbs in
North America....
North America....
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milehial2000
Ben's engine pistons and exhaust
The exhaust manifold is different on the EJ22T and requires a change
of the front crossmember to clear the crossover pipe. I have a '94
turbo motor in my '95 Imprezza so I have been down that road and If I
can help just ask and I will do my best. I have the FSM on both the
EJ22T and the NA and can send copys.
of the front crossmember to clear the crossover pipe. I have a '94
turbo motor in my '95 Imprezza so I have been down that road and If I
can help just ask and I will do my best. I have the FSM on both the
EJ22T and the NA and can send copys.
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ej22t
Ben's engine pistons and exhaust
I have an 92 Legacy turbo and just wants the engine swap and I think
the crossmember is the same as Japan Spec. Legacy also the GC8 WRX!!
Mark you are right , the stock boost setting is around 8.7psi but I
just has 0.33-0.41 kg/cm in stock boost setting shows up on the AVC-R
and I could rise it to 0.88 kg/cm at most or the car will be fuel cut
when I hit higher then that!!!
the crossmember is the same as Japan Spec. Legacy also the GC8 WRX!!
Mark you are right , the stock boost setting is around 8.7psi but I
just has 0.33-0.41 kg/cm in stock boost setting shows up on the AVC-R
and I could rise it to 0.88 kg/cm at most or the car will be fuel cut
when I hit higher then that!!!