I have a 1991 Force 120 Outboard on a Bayliner Cobra Bass/Ski boat. The Model is 1208C91H. The current prop on the outside says 21C, and on the inside says 12 5/8 DIA x 21P.
Here are my choices
14 X 13 Cup
13 1/2 X 15Cup
13 3/4 X 15 Cup
13 1/2 X 17Cup
13 1/4 X 17 Cup
13 X 19 Cup
12 3/4 X 21 Cup
I dont necessarily need more speed, I would like to tow a raft with some kids on it, so if I go with the 12 3/4 x 21, which I have I can pretty much expect the same speed and torque I get now with my existing prop right?
If I go with the smaller pitch, that gives me more speed and less power, or less speed and more power?
What would you do?
Here are my choices
14 X 13 Cup
13 1/2 X 15Cup
13 3/4 X 15 Cup
13 1/2 X 17Cup
13 1/4 X 17 Cup
13 X 19 Cup
12 3/4 X 21 Cup
I dont necessarily need more speed, I would like to tow a raft with some kids on it, so if I go with the 12 3/4 x 21, which I have I can pretty much expect the same speed and torque I get now with my existing prop right?
If I go with the smaller pitch, that gives me more speed and less power, or less speed and more power?
What would you do?