If you want cheap and still make good power then a billet HX52 with a 16cm turbine housing isn't a bad turbo, if you are looking for something with a little better spool time and as good or better flow and are willing to spend the money I would go with a PTE 6466, that is a very good turbo but they only offer it in dual BB no a cheaper journal bearing option, there is also a GT4288 off a diesel on craigslist for $200, idk what you could use to fix yours or whatever but here is the link
http://minneapolis.craigslist.org/cs...317543854.html