Subaru engine, Which one Options

[r_towle]

Not trying to be a dick, but please (pretty please) answer just my specific question because I am old, I don't understand all these numbers, and I want to start shopping.

What is the biggest, most horsepower, turbo, gas, Subaru engine that easily ( no drive by wire or anti theft stuff) can be swapped into the car?

[Mwood]

dont know much about the EZ but the EG33 from an svx is bigger, cheaper, guaranteed at least 225 hp and in my experience in my swap simple and easy to work on. ez30 also has a weird head with only one exhaust port and iirc makes 175 crank in the cars its in, not saying it wouldn't make more but I just dont remember it making 230.
don't know what year mass has cut off smog req but Im in CA and I took off all emissions gear on my engine and am using a megasquirt ecu. Hoping for 225 whp..

its not a turbo, but I think it'd be easier and cheaper so maybe that helps.

Mitch

edit: as aforementioned heard on some forum that people have taken the eg to 400 hp stock internals with turbos..

[DBCooper]

ez30 also has a weird head with only one exhaust port and iirc makes 175 crank in the cars its in, not saying it wouldn't make more but I just dont remember it making 230.

The EZ engines with the black plastic intake manifolds have three exhaust ports per head, not one siamesed port, and make from 217 to 260, if I remember correctly, depending on model. Not a bad deal, especially for the compact size and weight. Firing order the same as a Porsche six, too, so with a Porsche sport muffler the same sound.

One other issue with the later motors is the variable valve timing. There are aftermarket ECU's that can control them, and I seem to recall that Megasquirt has a channel that will as well but am not sure. Alternatively you can get Delta re-grinds pretty cheap to make the engine into a fixed cam. Lose a bit off the low-end torque curve, but other than that it's a pretty simple, cheap and painless alternative. Your choice.