I'm new to this so not sure where to ask my question. My Generator engine, a Yanmar 4ESDL which produced a continuous rating of 62 HP at 1500 RPM has died. It powered a 35KW, (43.75KVA) generator.

I have now replaced the engine with a Mitsubishi 4D56 (Non Turbo) which is said to produce 55KW (74HP) @ 4200 RPM.

How can I compare the power of both engines at 1500 RPM which is the generator's running speed? Is the 4D56 up to the task....and what HP will it produce @ 1500 RPM?

Thanks.