I have been doing a little looking about and searching for info on the flys for 1gs and have came up with a conclusion that so far there seems to be 3 different weights for them....

My one in paticular is 7.7kgs and from what i know atm is the lightest of them all from factory. Also to remember that the weight will vary from your clutch face size being either 225mm or 236mm mine is the smaller 225mm.

So far i have got

7kg Supra manual
8kg Soarer manual
9.5kg Something else has this?

And that seems to be the weight of all the 1ggte flywheels

If anyone with any other info would like to add to this i would be very interested to know if any others have been weighed especially the bigger 236 flys or if there are any other major differences in them. As i have done measurements for where the teeth are positioned on some for starter and they are slightly different to others also some look completely different as well.

Any info on the weight of g-series flywheels would be good to know and maybe next time any 1g people have there clutch looked at check and see what one it is, there is a very noticeable difference between 7 and 9.5kgs Also remember to lighten factory flywheels on 1gs any more than 7kgs would not be recommended to do. I am pretty sure that all G-series flys should be compatable but maybe this is not the case?