there is a very good driver in GS around here and richmond, Keith Marx. he drives a Celica GT on R-compounds, and not sure what else he has. i know he's always in top 10, usually top 5. if you got some r-compounds and knew how to control a drift effectively to your advantage, i'm sure you could be competive. i'm assuming the 240sx (2.4L 6 cyl right??) should have a little bit of torque.