southtexas
Petty Officer 2nd Class
- Joined
- Apr 8, 2009
- Messages
- 137
Prop guy finally got the hub right so I got to put on new prop and test. Here's the info:
Everglades 200cc (Flatbottom; w/ tunnel 24" wide x 3.5" deep) No jack plate
2005 Yamaha 115 four stroke
2800 lbs (boat, motor, gear, me, passenger, gas, etc)
New prop: Power Tech SS PFS4 (4 blade cupped) 13x15
Max WOT RPMs full throttle: 6000 (didn't want to try for more, but felt I could get them)
Max speed at WOT 6000: 26.5 knots (GPS)
Speed at 4500: 21 knots (GPS)
Old Prop: 13 x 19 Aluminum (don't know make)
Max RPMs full throttle: 5200
Max speed at WOT 5200: 30.5 knots (GPS)
Speed at 4500: 25 knots (GPS)
Questions: With new prop, what should I peg as my max WOT rpm? What should I cruise at? What is fuel use at each of these rpms? My Yam owner's manual says "max PRM range: 5000-6000". What should that tell me for my set-up?
Basically, I like this new prop because it has dramatically improved my hole shot, but I don't know how to run it at optimum performance. Lots of questions so thanks in advance for your help!
Everglades 200cc (Flatbottom; w/ tunnel 24" wide x 3.5" deep) No jack plate
2005 Yamaha 115 four stroke
2800 lbs (boat, motor, gear, me, passenger, gas, etc)
New prop: Power Tech SS PFS4 (4 blade cupped) 13x15
Max WOT RPMs full throttle: 6000 (didn't want to try for more, but felt I could get them)
Max speed at WOT 6000: 26.5 knots (GPS)
Speed at 4500: 21 knots (GPS)
Old Prop: 13 x 19 Aluminum (don't know make)
Max RPMs full throttle: 5200
Max speed at WOT 5200: 30.5 knots (GPS)
Speed at 4500: 25 knots (GPS)
Questions: With new prop, what should I peg as my max WOT rpm? What should I cruise at? What is fuel use at each of these rpms? My Yam owner's manual says "max PRM range: 5000-6000". What should that tell me for my set-up?
Basically, I like this new prop because it has dramatically improved my hole shot, but I don't know how to run it at optimum performance. Lots of questions so thanks in advance for your help!