Unless you have a dedicated airconditioned engine room, your high output alternator will benefit from adding a cooling fan that supplies (EXTERNAL) outside air directly to the alternator cooling fan intake. This will provide higher sustained alternator output and a longer life expectancy due to cooler operating temperatures. We have observed a 10 - 25 % increase in amperage output towards the maximum capacity of the alternator. The number is variable due to the pre-existing temperature and cooling available in the engine room prior to this "accessory" being installed.

A simple example is shown below. Note: The Balmar series 95 air intake is at the rear of alternator (pointing forward in this installation) and exits from the alternator's front (pointing aft towards the engine).

Click on the picture above to enlarge cooling detail