I'm posting this in here since it's where i believe the wisest tire connoisseurs are. (yes i had to look up the spelling)

Tires are for Z31, weekend car, mostly cruising and spirited driving
must have good/decent grip in dry and wet, longevity, close to stock ratio (225/50/16) and be cost efficient.
I'd like wider but that equals $$$, so i dont mind a little stretch
i've been looking between 225/40 to 255/35

wheels are 18x8.5 and 18x9.5

any recommendations???