i found this site today
www.wheelweights.net
most popular wheels are listed
s14 16’ are 18.5 lbs
s14 15’ are 15 lbs
s13 7spoke are 18lbs
s13 teardrops are 16lbs
300zx tt are 16lbs and 16X7.5
FD wheels are 13.8
some of the lighter wheels that fit 240s are
mazda millenia 15X6 11.5lbs
16X7 fn-01R 11.7lbs
all the advan wheels are really light
buddy club wheels are stupid light
any OZ supperleggra
most racing hart
and of course the volks