This 40 HP Kohler should be putting out about 57 HP with the Turbo added. This engine had 30 hrs on when William added the Turbo. After 20 hrs with the Turbo, the plastic oil pump gear started melting due to oil from turbo being too hot. The engine was completely rebuilt and fit with an orifice to cut down on the amount of oil flowing back to the engine. I am thinking about adding an intercooler to cool the air going into the engine to make more HP.
Now all i need is a customer to let me build them a boat with this engine.
Thanks, Chuck
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