- #1
beef supreme
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I am building a jet boat as a project this year. I am going construct the impeller my self but don't know what dimensions I need to make it to get the most out of the engines without over loading them. Here's what I have to work with:
The power source is going to be approximately 90 hp at 3600 rpm with about 130 ft-lb of torque. That power is going to be transmitted by two B section v-belts and pulleys. What I'm trying to accomplish is to get as close to 90 hp out of a water jet as possible. I can do about 50 square inches at the input and output of the impeller and a nozzle of about 12.5 square inches at the rear of the boat. My question is what diameter do I want to make the impeller assuming the circumference times the height of the opening at the edge is equal to the intake (50 inches^2) and what rpm?
Any insight on the matter would be greatly appreciated. Thanks
The power source is going to be approximately 90 hp at 3600 rpm with about 130 ft-lb of torque. That power is going to be transmitted by two B section v-belts and pulleys. What I'm trying to accomplish is to get as close to 90 hp out of a water jet as possible. I can do about 50 square inches at the input and output of the impeller and a nozzle of about 12.5 square inches at the rear of the boat. My question is what diameter do I want to make the impeller assuming the circumference times the height of the opening at the edge is equal to the intake (50 inches^2) and what rpm?
Any insight on the matter would be greatly appreciated. Thanks