ok, this guy turboed his optra with the 2.0l. read the whole thing, and you'l get a general idea of how much power our aveo can handle, and what it takes to make that power. for one our d16 trans its rated at 160 nM ( 118 pounds of tq). i think its great that some one droped that much money in to the turbo set up, but its was a bitch to get it working right, and his clutch went, and d20 trans eat it self.
http://www.daewootech.com/forum/viewtopic.php?t=6735