I've done a lot of searching and can't seem to find a lot of info on 2.1 builds (4G64 block/4G63 crank) that utilize a smaller turbo. Most guys seem to be in the 750+ hp range. I'm looking for results and possibly comparisons of a 2.1 using an FP green size turbo compared to a 2.0 or anyone with experience having used a 2.0 then a 2.1 in the sub 600hp area.