I spent some time today weighing the car and parts.
The Callaway box stock car weighs 92 g
chassis 69 gm
downforce 11 gm (the magnet had been removed)
Lexan interior 1 gm
Stock Interior 2 gm (and it is wonderfully painted) It is back in the car,
body 22gm (none of the allowable details removed) 17 gm min. rule
body no interior 19 gm
shake down running on dyno at 12 v, 6,500 rpm +/- 300 rpm
I have not trued the tires since we will not be truing in Burbank. The car is running slightly less vibrating on the dyno and on the track. I have not run it on clean track.