skippy2235
Petty Officer 2nd Class
- Joined
- Aug 24, 2009
- Messages
- 138
So I let someone load my boat onto the trailer this last weekend. He did not raise the motor, and dug the prop into the gravel.
Prop is ground down a long way.
I would like to replace this prop, and I need to make sure I am getting the correct size.
I have only had this boat for a 2 months and am getting bad fuel mileage. With cruising of 30 MPH going 25 miles cost me $100 = 25 gallons. meaning 1 gallon a mile. I need to just verifing that what was there is correct before I buy the wrong thing.
I have a 1993 22 FT Seaswirl
This has an OMC 5.8 L 260 HP. Fuel Injected Multi port.
1. Year, make and model of boat
1993 22 FT Seaswirl planning hull, hardtop, 212 striper. Cuddy Cabin.
1993 OMC Ford 5.8 L 260 HP. Fuel Injected Multi port.
2. Length, width and base weight of boat, look for boat decal on back of boat
22 feet long, 8 foot beam, 3500 lbs dry weight
2a.What is the maximum recommended HP for your boat
I belive that this model came with a King Cobra 300 HP.
3. Number of people and gallons of gas normally on boat
2 people and 40 gallons
4. What do you use the boat for
Cruising. / Fishing
5. Is it a Deep Vee and if so how many degrees of deadrise
Planning HULL
6. Year, make. manufacturer and model of motor
1993 22 FT Seaswirl 212 Striper
7. HP and gear ratio of motor IMPORTANT
260 HP with ratio of 1.5
8. Manufacturer?s recommended Wide Open Throttle (WOT) range
4200 - 4500 rpms
9. Anti-ventilation Plate height above keel of boat if it is an outboard in inches, use a board under the keel and stiking out to the anti ventilation plate for a referene
Drivetrain is I/O.
10. Is it a bass boat or does it have a pad bottom
Not a bass boat.
11. Does it have a hydrafoil, dolefin or trim tabs
Hydrofoil on the outdrive + trim tabs.
12. Make, model, diameter, pitch, number of blades and whether SS or aluminum prop
Quicksilver 15 X 17 Aluminum 3 blades
13. WOT RPM and speed from your current prop and how much gas and how many people were in the boat for the test data and is the speed by GPS. Make sure you trim the prop up until it starts ventilating and then just trim in until it quits ventilating. If you do not have a tach you can buy a Tiny Tach for $ 50
RPM ___________ Speed ___________ No. of people ____________ Gal. Gas ________
WOT RPM = 4500 hit the rev limiter; built in tack, Speed = 46 mph GPS; 2 people ; Gal. gas = ~ 40 gal. very calm water.
14. Are you at sea level or a higher elevation, give us the elevation in feet
Sea level.
15. Has your motor been tuned up lately and have you checked that the carburetor butterfly is opening all the way, checked compression, and looked at the plugs and checked spark, all of the foregoing could be the reason your prop is not attaining full RPM
Engine runs perfect, and will get the WOT with no issues, and more. I have hit the rev limiter.
16. How long has this prop been on the boat and why, at this time, do you think it is the wrong prop
This is a new used prop with. I am not convinced the current prop is the wrong prop, Just what I think is poor fuel economy. I am just looking for optimization.
17. Does the prop show any damage that you can see
Was in great shap untill we dug gravel with it
18. What problems are you trying to cure or what are you looking for the boat to do that it is not doing the way you think it should or to your expectations
I am just looking for the boat to cruise within its optimal speed range. FUEL ECONOMY.
19. If you are trying to attain a better cruising speed and fuel savings or trying to attain a faster speed I will want you to take your boat and run it with 1 or 2 people and give me the RPM and speed readings starting at 3,000 RPM in 500 RPM increments all the way to WOT.
RPM = MPH
3000 = 24
3500 = 31
4000 = 37
4500 = 46 WOT
Prop is ground down a long way.
I would like to replace this prop, and I need to make sure I am getting the correct size.
I have only had this boat for a 2 months and am getting bad fuel mileage. With cruising of 30 MPH going 25 miles cost me $100 = 25 gallons. meaning 1 gallon a mile. I need to just verifing that what was there is correct before I buy the wrong thing.
I have a 1993 22 FT Seaswirl
This has an OMC 5.8 L 260 HP. Fuel Injected Multi port.
1. Year, make and model of boat
1993 22 FT Seaswirl planning hull, hardtop, 212 striper. Cuddy Cabin.
1993 OMC Ford 5.8 L 260 HP. Fuel Injected Multi port.
2. Length, width and base weight of boat, look for boat decal on back of boat
22 feet long, 8 foot beam, 3500 lbs dry weight
2a.What is the maximum recommended HP for your boat
I belive that this model came with a King Cobra 300 HP.
3. Number of people and gallons of gas normally on boat
2 people and 40 gallons
4. What do you use the boat for
Cruising. / Fishing
5. Is it a Deep Vee and if so how many degrees of deadrise
Planning HULL
6. Year, make. manufacturer and model of motor
1993 22 FT Seaswirl 212 Striper
7. HP and gear ratio of motor IMPORTANT
260 HP with ratio of 1.5
8. Manufacturer?s recommended Wide Open Throttle (WOT) range
4200 - 4500 rpms
9. Anti-ventilation Plate height above keel of boat if it is an outboard in inches, use a board under the keel and stiking out to the anti ventilation plate for a referene
Drivetrain is I/O.
10. Is it a bass boat or does it have a pad bottom
Not a bass boat.
11. Does it have a hydrafoil, dolefin or trim tabs
Hydrofoil on the outdrive + trim tabs.
12. Make, model, diameter, pitch, number of blades and whether SS or aluminum prop
Quicksilver 15 X 17 Aluminum 3 blades
13. WOT RPM and speed from your current prop and how much gas and how many people were in the boat for the test data and is the speed by GPS. Make sure you trim the prop up until it starts ventilating and then just trim in until it quits ventilating. If you do not have a tach you can buy a Tiny Tach for $ 50
RPM ___________ Speed ___________ No. of people ____________ Gal. Gas ________
WOT RPM = 4500 hit the rev limiter; built in tack, Speed = 46 mph GPS; 2 people ; Gal. gas = ~ 40 gal. very calm water.
14. Are you at sea level or a higher elevation, give us the elevation in feet
Sea level.
15. Has your motor been tuned up lately and have you checked that the carburetor butterfly is opening all the way, checked compression, and looked at the plugs and checked spark, all of the foregoing could be the reason your prop is not attaining full RPM
Engine runs perfect, and will get the WOT with no issues, and more. I have hit the rev limiter.
16. How long has this prop been on the boat and why, at this time, do you think it is the wrong prop
This is a new used prop with. I am not convinced the current prop is the wrong prop, Just what I think is poor fuel economy. I am just looking for optimization.
17. Does the prop show any damage that you can see
Was in great shap untill we dug gravel with it
18. What problems are you trying to cure or what are you looking for the boat to do that it is not doing the way you think it should or to your expectations
I am just looking for the boat to cruise within its optimal speed range. FUEL ECONOMY.
19. If you are trying to attain a better cruising speed and fuel savings or trying to attain a faster speed I will want you to take your boat and run it with 1 or 2 people and give me the RPM and speed readings starting at 3,000 RPM in 500 RPM increments all the way to WOT.
RPM = MPH
3000 = 24
3500 = 31
4000 = 37
4500 = 46 WOT