Ok ill post a proper response about my experiences. In my old R33, it had turbo back exhaust, 10psi, Power FC, FMIC (191rwkw), rock hard tein susp, 5 puck brass button clutch, 255 wide K104 tyres, revs at 4200, drop clutch (foot flat all the way) & wheel spin half way through 1st, ran 13.5 @ 106 with 1.8 60’ (with granny shifted 3rd)
As adrian said, it's car dependant, so practice makes perfect.