houstonnoob
Seaman
- Joined
- May 5, 2012
- Messages
- 50
OK as you can see my prop's picture from other post in here and I am new to boating. I am getting a new prop, I am thinking of changing from 3 blades to 4 blades just because it seems better looking (<==LOL). I am asking anyone with experience of switching 3 blades to 4 input with 4.3L engine. I am sticking to 14.5 x 19p either 3 blades or 4. Thank you.
From iBoats new propeller section:
"3 blades... or 4?
We recommend 3-blade propellers for recreational boats with 3, 4, and 6 cylinder outboards and I/0 engines.
3-blade props provide good "hole shot" and top-speed performance.
We recommend 4-blade propellers for bass boats and boats with high performance hulls running high horsepower outboard engines.
Compared to 3 blades, 4-blade props provide better "hole shot" performance with less steering torque and less vibration at high speeds.
When switching from 3 to 4-blades, generally a 1" pitch decrease is required. So, a 21" pitch 3-blade prop is replaced with a 20" pitch 4-blade prop. Pitch is increased when switching from 4 to 3-blades."
From iBoats new propeller section:
"3 blades... or 4?
We recommend 3-blade propellers for recreational boats with 3, 4, and 6 cylinder outboards and I/0 engines.
3-blade props provide good "hole shot" and top-speed performance.
We recommend 4-blade propellers for bass boats and boats with high performance hulls running high horsepower outboard engines.
Compared to 3 blades, 4-blade props provide better "hole shot" performance with less steering torque and less vibration at high speeds.
When switching from 3 to 4-blades, generally a 1" pitch decrease is required. So, a 21" pitch 3-blade prop is replaced with a 20" pitch 4-blade prop. Pitch is increased when switching from 4 to 3-blades."
