Performance Report
Four Sons Marine Coastal Skiff 184
TEST MOTOR:
DF90ATL
BOAT TYPE:
Skiff
TEST DATE:
9/29/2025
BOAT
Coastal Skiff
MATERIAL
Fiberglass
LENGTH
18' 4"
BEAM
91"
WEIGHT (lb.)
1300
MAXIMUM HP
90
FUEL CAPACITY (gal)
12
TRANSOM HEIGHT
20"
STEERING
Mechanical
ENGINE
DF90ATL
ENGINE TYPE
Inline 4 Cyl.
HP
90
DISPLACEMENT (L)
1.5
OPERATING RANGE
5700-6300
WEIGHT (lb.)
344
FUEL DELIVERY
EFI
GEAR RATIO
2.59:1
OTHER SPECS
Propeller
MATERIAL
Stainless Steel
DIAMETER/PITCH
14 X 19
NUMBER OF BLADES
3
PART NUMBER
990C0-00610-19P
Mounting Height
HOLE POSITION
1
JACK PLATE
N/A
TEST CONDITIONS
TEST CONDITIONS
WATER CONDITIONS
Light Chop
WIND VELOCITY (MPH)
10
AIR TEMPERATURE (°F)
84
FUEL LOAD (gal)
12
WEIGHT ONBOARD
2 Persons, Full Safety Gear
COMMENT
Full Tunnel Hull
PERFORMANCE DATA
RPM
MPH
GPH
MPG
RANGE
Idle
2.3
0.1
22.5
243
1000
3.7
0.3
12.2
131
1500
5.2
0.6
9.5
102
2000
6.4
0.8
7.9
86
2500
7.2
1.3
5.5
59
3000
15.7
1.8
8.9
97
3500
17.6
2.3
7.6
82
4000
24.7
3.1
8.0
86
4500
28.9
3.7
7.8
84
5000
32.7
5.2
6.3
68
5500
36.6
7.2
5.1
55
6000
39.8
8.4
4.8
51
6300
41.7
8.5
4.9
53
PERFORMANCE SUMMARY
TOP SPEED (MPH)
41.7
ACCELERATION (0-20 Sec.)
6.55
OPTIMUM CRUISING (RPM)
RANGE (MILES)
RANGE (MILES)
3000
97
97
BEST CRUISING (RPM)
FUEL EFFICIENCY (MPG)
FUEL EFFICIENCY (MPG)
3000
8.9
8.9
FOR MORE INFORMATION
MANUFACTURER
Four Sons Marine
LOCATION:
Fair Bluff, NC
SUZUKI marine
suzukimarine.com
PHONE:
(910) 649-5755
WEBSITE:
www.foursonsmarine.com
OUTBOARD:
DF90A
