alaskamarine
Cadet
- Joined
- May 27, 2005
- Messages
- 17
Have a jet unit on my 20 footer flat bottom boat, goes about 38 with 50 gallons of gas and 3 people @ 6k. It has a SS 4 blade impeller and a aluminum sleeve. Are there any advantages to a SS 5 blade or 3 blade impeller? I am looking for more speed, it carries the load quite well as well as revs correctly. It is a 150 yamaha outboard, so about 105hp with the jet.