Well check this site out http://www.cse.uconn.edu/~yelevich/turbo/turbo.html

The reason I was wanting to build a GSR is because I can sell my ls swap and put it in another civic for around 2000-2500. Then I got 500 saved. So I thought I could get a block for around 300 or 400 on ebay theres on there right now. Then I looked and forged rods and pistons together were like 600. Then a guy in florida is gonna sell me a complete b16a head. I think all together just the motor rebuild was around 2000 then the 500 or so I was going to use for a clutch flywheel and tranny.

If I get a turbo I have to buy a bunch of extra stuff that I would have to come up with the money for.