Daniel1980
Member
- Jun 29, 2021
- 88
- Boat Info
- Sea Ray 175 Sport
- Engines
- Mercruiser 3.0
I am a new boater. I have an 18' Sea Ray. She's a gem. Little rough visually, but I like the visual character with phenomenally working mechanics.
So I replaced the prop with a 21" aluminum new propellor. Out of box, it's not sharpened but I am assuming balanced?
Tops out at 38mph with 3 people and gear. Claimed is 42mph new with 1 person and empty.
I used to race gas powered RC boats. Lot of fun! Number ine performance upgrade was a worked prop. Once you got thw right prop size that gave you the hole shot and didn't bog your motor, you would balance and sharpen it. It was a real art.
Question is, does the same hold true for full size boats? Also, can you tell me what would happen if I went with a smaller prop, say 20 or 19" versus the factory spec 21"? I really like to squeeze out performance. Yes I understand there is definitely a point of very dkminishing returns from a Mercruiser 3.0L 4 cyclinder motor, but I was hoping to gain some understanding on props. Please and thank you
So I replaced the prop with a 21" aluminum new propellor. Out of box, it's not sharpened but I am assuming balanced?
Tops out at 38mph with 3 people and gear. Claimed is 42mph new with 1 person and empty.
I used to race gas powered RC boats. Lot of fun! Number ine performance upgrade was a worked prop. Once you got thw right prop size that gave you the hole shot and didn't bog your motor, you would balance and sharpen it. It was a real art.
Question is, does the same hold true for full size boats? Also, can you tell me what would happen if I went with a smaller prop, say 20 or 19" versus the factory spec 21"? I really like to squeeze out performance. Yes I understand there is definitely a point of very dkminishing returns from a Mercruiser 3.0L 4 cyclinder motor, but I was hoping to gain some understanding on props. Please and thank you