a supercharged sr20 in a hachi would be cool. that gold datto 1600 with the charged sr20 was putting out like 400rwkw wasnt it? maybe not that much but it was alot for an sr.
although bolting on a turbo to that engine will be the cheapest option.
i was going to do the same setup to a 1200 coupe i had. got all the bits ready and everything, then my 86 popped up.... sold the 1200 project to my girlfriends brother.
all you need is the turbo and manifold bigger injectors and microtech and away you go!!