>a guy told me that 215/50R16 would be a good size.
well i think that wider is better, with a 215/50R16 you will have less traction area but you would have a smaller sidewall which means the wheel flex would be less. i have known people to squeeze 235 on their cars, but without a very low series like a 35 or so their is to much wheel flex causing the tire to rub against the knuckle. with a 225/55R16 (i have these in a 95V) you have more surface actually touching the ground and there isn't enough flex to cause the tire to rub. O and less fender gap too.