I got 124rwkw out of my 500,000k L20et. Simple mods, FMIC, rb20det turbo, Exhasut, 270cc vg30et injectors, timing at 20btc, AFM adjustment, Overboost safety valve removed and BOV fitted, I ran 14psi daily, Sometimes 17-18psi it made a hell of a lot more power at 18psi.., dyno was at 14psi
Dont freak out running a rb20det turbo at higher boost levels on a L20e, the shaftspeed doesnt get as high.