Nissan Gran Turismo Skyline GT-R '01 tune for Nurb 4h and Tsukuba 9h

[C-ZETA]

I wanted to do the Nurburgring 4h and Tsukuba 9h events in this car, but I don't know what kind of tune it needs to beat them. Can somebody provide me with tunes for this car that will secure a win in these events? I don't mind if it's a tune for both circuits or two individual tunes for it, I want your tunes for this thing.