Cepx111 not all fluid damper are zero balance i have a fluidamper on my 468 and its an external balance one with a counter weight in it.
Ok but if your engine is balanced INTERNALLY like most racing engines you would need a NEUTRAL or ZERO balancer and flywheel ( no counter weights ) If your running a dampner and flywheel with a counter weights on a internally balanced engine your basically negating that costly balance job> Cp