So in drag applications the solid inserts are horible and kill the insert and clutch quickly, they do this because the solid insert is thin and the outside of the circle spins faster than the inside of the circle causing more heat on the outside. The fact that the plate is a solid circle the the inside and outside are different temps causes the plate to pull against itself and warp. The segmented flywheel flywheel having separate sections allow the small section plates to float and not warp. The RPS plates are also thicker than most other aluminum flywheels. The RPS flywheels have been in most of the fastest stick Z cars in the country.
