The dyno housing has two water inlets & one outlet on the bottom. The hole in the dyno base & table pass the hot water to the ground. One HP equals 746 watts of heat; therefore at more than 7 HP (5222 watts of heat) the water comes in cold & comes out very hot! Notice the two angled oil holes on the top of both shaft bearing mounts to lubricate the housing seals before each dyno pull.
