I am about to install my accumulator, so at this point I have no first hand working knowledge. Here is the understanding I have though. The volume of oil your accumulator holds must be accounted for in addition to your oil pan capacity. In the case of mine, the adapter goes between the oil filter and block. This requires pulling the distributor at each oil change and driving the oil pump with a drill to fill the accumulator. This is done to prevent oil starvation for the period of time it would take to fill the accumulator on startup. I will be running my accumulator valves off of a pressure switch.
