im going to do a sc build on the 2.2l, and also did alot of reaserch on the sts rear mounted turbo and i dont see any prob with mounting that on with the sc, besides certain spacific charged mods such as the cam shaft. I was wondering if i should go as far as getting a new crank, boring the block out and all that, or just upgrading the pistons. Would the 2.2l crank and pistons hold up to all that or should i upgrade? and as well as the vavle springs and all that? ---------- Post added at 11:39 PM ---------- Previous post was at 11:09 PM ---------- also what about rods and sleeves and all that stuff.