GTS-T is rear wheel drive. GTR at GTS4/Attesta systems on various other models are the AWD/4WD Nissan systems.
I'm curious to see how you think I'm wrong and that the SIDI SV6 has more power than an R33 GTST. The SV6 puts out 210kw at the motor, which equates to about 140-145rwkw in a 1600kg car. The R33 in a 1200kg car puts out 180kw at the rear wheels which is about 240-250kw at the motor. A motor on boost will be pushing harder than the Alloytec in a heavy chassis car.
Mate, without bringing a whole bunch of physics to the argument, there is no chance the SIDI would keep up at all with a boosting Skyline. No chance.