I run 245/45/17 on the front of my 90lx and if I crank the wheel they do rub. I have to ease into those 3 point turns. I would say 255 is getting a bit too big.
I had 255/45/17 on the front and they rubbed so much that they wore through some of the inner fenderwell plastic. I have 235/45/17s on there now and they dont rub at all and dont look much smaller than the 255s.