Steve the damping effect mostly (like 99%) comes from the inertia ring. Galling and other problems do not show up on the dyno. Steve, Ford had both dampners availble to them. I don't ever remeber dampner failure as one of the problems with the engine. As an interesting side note: sprint car engines run without dampners or flywheels for that matter. I have never heard of a sprint car driver ever giving away power.
