User Tag List
Thanks: 0
Likes: 0
Results 1 to 2 of 2
Thread: Operating RPM
-
08-26-2009, 01:38 PM #1New Member
- Join Date
- Aug 2008
- Location
- Norco
- Posts
- 3
- Thanks (Given)
- 0
- Thanks (Received)
- 0
- Likes (Given)
- 0
- Likes (Received)
- 0
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Operating RPM
I have a 13ft boat and it has a 1985 Mercury 50 HP outboard. I currently have a 14p prop (P/N 816706A40P14) and the enging runs 6800 RPM at @30 MPH. I would like to get it to go faster. I have no trouble getting it to plane. I was told i need to know the operating range of the engine. I have no manual. Any advice info would be helpful. Thanks.
Oh here is a pic of boat, I now have a CMC trim/tilt.
-
08-26-2009, 01:56 PM #2
Most two stroke outboards should run mid 5's if they are not modified. If you are at 6800, you are WAAYYY underpropped and could probably go a lot faster with a longer prop. Might have to balance between getting on plane or going fast though with a short boat.
Don't know whats available for that LU, but if it's a 14p you could go 16 or better I would imagine.
Welcome to SnF.
BernieOK, I got down off the porch and ran with the big dogs....kinda sore now....think I'll just lay here in the flowerbed for a while...
1976 Hydrodyne 18 I-O
1969 Allison 15R, 1973 Merc 1500 (project)
1995 Harris toon