Thanks Dyziek
If you are going to fit a Subaru engine, fit the turbo engine.
If you want 120hp then fit the 2100cc waterboxer- it will make the power with a pair of 40s. If you want more power, you can change the camshaft. There are lots of tuning parts for these engines (many the same as T1). You can also use a 1900 waterboxer and turbocharge it and have 200hp without taking the block apart, but you will have 200hp at 4500rpm because they don't want to rev much higher with the standard valvetrain.
If you are going to fit a Subaru engine, fit the turbo engine.
If you want 120hp then fit the 2100cc waterboxer- it will make the power with a pair of 40s. If you want more power, you can change the camshaft. There are lots of tuning parts for these engines (many the same as T1). You can also use a 1900 waterboxer and turbocharge it and have 200hp without taking the block apart, but you will have 200hp at 4500rpm because they don't want to rev much higher with the standard valvetrain.