Looks like the leading trend in Japan now is installation of mass dampers both front and back. From what I have observed, the standard placement is 4.7g X 2
in front (on the front bumper) and 8.8g x 1 behind (rear bumper). This should be a good aspect worthy of a discussion.
Few things that I think affects how effective mass damper works:
1. weight of damper
2. position of damper (high/ low, distance from front/ rear axle, layout of the dampers on the chassis, angle of damper movement)
3. amount of space for the damper to move.
4. how the car lands (front 1st, rear 1st, 4 wheels land at same time)
I think the concept of work done (Work=Force X Distance) applies well here. Also important will be the total weight of the dampers to use. I really find the current mass dampers to be a limitation. My dream part now would be weights 1-5g that is shaped small and round enough. But before Tamiya clear their dangun metal wheels as dampers, my movable FRP+weight set up by the side of my wheels should suffice. The key though would be to determine the amount of weights. (my digicam is spoilt now, so no pics for now, much apologies )
Best position I feel would be to have the dampers rest as low as possible to maintain a low CG and as close to the wheel as possible. What do you guys think?