Help me decide which engine to use.

[Xbmxxx]

Help me decide which engine to use!

Parts I have:
EJ25D heads tapped for turbo
Polished EJ25D intake manifold
STi yellow injectors
TD05H 16g turbo
Walbro 255lph fuel pump
Ver 1 STi top mount (I think)
forge BOV
Aluminum turbo inlet elbow

Undecided on Engine Management.

ej22T complete engine. 160k on it.
Ej257 shortblock rebuilt. 60k before rebuild.

I would like to see 300-350hp but would prefer it to be a reliable good all around street car rather then make a number on a dyno.

Which block would you use?


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[86bratman]

I'd personally run the ej22t, but I'm bias against the ej25 for my own reasons. But looking at the maths of it, an ej257 with 25d heads is 9:1 compression, and still has weak ringlands so tuning would have to be spot on. The 22t with those heads will have a much lower cr (7.7:1) on stock thickness head gaskets, so you'll be lacking some low end unless you go for a set of pistons made for that combo.

[Xbmxxx]

Yeah, I'm aware I need to run thinner gaskets on the 2.2t. Seems a lot of people over on other forums have had success running the 25d gaskets


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[Garrison]

EJ257 every day, all day.

More displacement = more torque = more smiles

You could push 400hp (300whp) on that setup all day long

[blankdeluxe]

22t gets my vote.

[Garrison]

bratman is correct on the 7.7CR which is too low to get a decent daily driveable engine - sell the whole ej22t and get your engine management with the proceeds.