ok i dont know if you have solved the problem and im not a mechanic (also a newby skyliner) but when you say you boot it and it cuts out is it like when you dont have traction controll off and boot it ????, it could be your coil packs are on there way out , i heard in the wet if you keep hitting the slip light (traction control ) it can cause your coil packs to crap out , might help sorry if its totaly wrong,
my car cuts out for like two seconds if i boot it with traction controll on , id say if your coil packs are failing if would feel the same since that how the traction controll works (asuming an rb30 has traction controll ??? i dont think they do )