only the 99 beams 3sge has 200Hp, you have a 175hp engine unless it has some work done to it to achive 200hp.
Also remember japan has 100Ron fuel so the computer is programmed for that fuel and if u bring it to US, i wonder how it will like low octane???
You can turbo charge it, as the turbo model uses the same block, but you need to supply oil to the turbo and back to engine, installl piston oil coolers on the n/a block, (oil supply insufficiency has killed more engines than boost)
http://www.toysport.com/Technical%20...tech_notes.htm
but why re invent the wheel, toyota has already done a brilliant job designing the 3sgte.
I was thinking exacly like you before, but if u want a reliable conversion you be paying 2x 3sgte conversion. and still you have a less flowing head, unless you change it as well.
kep in mind if you change your gearbox for lsd(unless u have it already) new hubs and axels need replacement 2.
have you bought the car already??
how much turbo half cuts go for there? or gen 3 engines??