Stoker1
05-10-2017, 09:59 AM
Advantages of 4 blade over 3 blade on a single OB offshore? I'd particularly like to have a little slower planning speed and transom lift.
Key West 203FS - no Ttop or trim tabs (typical high sided center console)
175 Zuke - 15 x 21" Yamaha SSII 3 blade
Holeshot is fantastic. Does not break loose even in rough water. Slowest planning speed is 18mph (even when loaded) and comfortably cruises at 25mph a few ticks over 3k.
BUT --- Bangs the limiter even when loaded and trimmed.
For propping of 2 strokes, the rule of thumb I've always went with was prop for max RPM lightly loaded as they will come down with load. This is odd though as its my first 4stroke. It seems the dealer just threw one on, and could probably use either a 22 or 23". How would the 4S like the extra lugging in the lower rpm range?
Overall pleased with the performance and the wife loves it. I'm just always thinking about little things and was wondering if a 4 blade would help especially when the water gets a little snotty by lifting the stern. At this point, I'm not going to install tabs.... just yet. A quality 4 blade is a big investment and not sure if the performance would be worth the cost.
Please advise.
Key West 203FS - no Ttop or trim tabs (typical high sided center console)
175 Zuke - 15 x 21" Yamaha SSII 3 blade
Holeshot is fantastic. Does not break loose even in rough water. Slowest planning speed is 18mph (even when loaded) and comfortably cruises at 25mph a few ticks over 3k.
BUT --- Bangs the limiter even when loaded and trimmed.
For propping of 2 strokes, the rule of thumb I've always went with was prop for max RPM lightly loaded as they will come down with load. This is odd though as its my first 4stroke. It seems the dealer just threw one on, and could probably use either a 22 or 23". How would the 4S like the extra lugging in the lower rpm range?
Overall pleased with the performance and the wife loves it. I'm just always thinking about little things and was wondering if a 4 blade would help especially when the water gets a little snotty by lifting the stern. At this point, I'm not going to install tabs.... just yet. A quality 4 blade is a big investment and not sure if the performance would be worth the cost.
Please advise.