Performance Bulletin
Performance Bulletin
Boat Manufactured By:
1715 North 8th Street • Neodesha, KS 66757
(800) 468-5764
www.cobaltboats.com
Cobalt R8
| Length | 27' 10" |
|---|---|
| Beam | 8' 6" |
| Dry Weight (Boat Mfr. Pub) | 6,500 lbs |
| Maximum HP | 600 hp |
| Fuel Capacity | 125 gal |
| Weight as Tested | 8,563 lbs |
XF425USA2
| Horsepower | 425 hp |
|---|---|
| Induction | DI/VCT/DOHC |
| Displacement | 5.6L |
| Weight (Estimated) | 977 lbs |
| Gear Ratio | 1.79:1 |
Engine Mounting Height
| Mounting Hole Position | #2 |
|---|
Propeller(s)
| Series | XTO Offshore |
|---|---|
| Diameter x Pitch | 16-5/8 x 18 |
| Yamaha Part # | 6GR-45938-10-00 |
| Propeller Material | Polished Stainless Steel |
Test Conditions
| Number of People | 2 |
|---|---|
| Air / Water Temperature (Fahrenheit) | 83° F / 75° F |
| Elevation (in feet above sea level) | 918' |
| Wind Velocity | 5-10 MPH |
Comments
|
Test weight includes 80 gallons of fuel, 2 batteries, optional tower, safety and test equipment. YPB#: PB_COB_R8_XF425_3-16-21_DCK |
|
Boat Manufactured By: |
Performance Bulletin
Performance Data
|
RPM
|
MPH
|
GPH
|
MPG
|
|---|---|---|---|
| 1000 | 5.6 | 1.9 | 2.92 |
| 1500 | 7.5 | 2.8 | 2.71 |
| 2000 | 9.1 | 4.3 | 2.12 |
| 2500 | 11.8 | 6.6 | 1.80 |
| 3000 | 14.3 | 8.5 | 1.68 |
| 3500 | 21.5 | 11.0 | 1.95 |
| 4000 | 31.2 | 15.0 | 2.08 |
| 4500 | 36.7 | 19.2 | 1.91 |
| 5000 | 41.4 | 23.7 | 1.75 |
| 5500 | 46.4 | 30.5 | 1.52 |
| 6000 | 51.5 | 38.6 | 1.34 |
0-20 MPH: 6.14 seconds
Notice To Consumer The information and data contained in this Performance Bulletin is approximate and subject to many different factors and variables. It is provided as a guideline only and should not be relied upon as representative of actual performance. Your boat’s performance may be different than the information contained in this Performance Bulletin due to various factors, including your boat’s actual weight, wind and water conditions, temperature, humidity, elevation, bottom paint, boat options affecting wind/water drag and/or boat weight, and operator ability. Please confirm the specifications and performance data on your specific boat/engine combination with your dealer prior to purchase. Please also keep in mind that the data contained in this Performance Bulletin may or may not have been performed using Yamaha PowerMatched components. Yamaha reserves the right to change the specifications and performance data of this Performance Bulletin or engine without notice. This document contains many of Yamaha’s valuable trademarks. It may also contain trademarks belonging to other companies. Any references to other companies or their products are for identification purposes only, and are not intended to be an endorsement.