@Stan Galat posted:I agree about Phil's motor.
I'd want to see a dyno sheet for that 220 hp. It sounds "aspirational", but maybe once a guy uses the Orange County Correction Factor, it dynos at 220.
I would too, but theoretically it seems almost easy.
Stock(ish) 2.5 Suby is 180-ish HP
These are robust modern engines with four valves per cylinder, a 79mm stroke and 99.5 bore. They come standard with like 10-1 compression (10.7-1 JDM) and some pretty healthy intake runners. Making an exhaust for them is child's play for a good pipe shop. They already rev over 7,000 without complaint.
A Chevy Ecotec 2.5 makes 200 hp out of the crate. That's the world we live in. There's nothing to suggest the Subaru design isn't its equal, at least.
So how hard can it really be to squeeze another 10 percent out of it? Seems to me a little more compression, some port matching, an skosh more lift and duration on the cams, maybe a larger injector and then the all-important computer tune should make it happen.
The only question I have is "who is tuning the ECU?"
I think the only reason it's not already common is because these engines are so easy to turbo, and make so much more power that way, that no one has thought it worthwhile to spend the hours.
All that said...it's too much power for that chassis and suspension. It will make the car less fun.