Performance Report
SeaArk Boats
TEST MOTOR:
DF150ATLSS
BOAT TYPE:
Fishing
TEST DATE:
9/30/2025
BOAT
Shadow 20 SC
MATERIAL
Aluminum
LENGTH
20'1"
BEAM
7'11"
WEIGHT (lb.)
950
MAXIMUM HP
150
FUEL CAPACITY (gal)
32
TRANSOM HEIGHT
20
STEERING
Hydraulic
ENGINE
DF150ATLSS
ENGINE TYPE
Inline 4 Cyl.
HP
150
DISPLACEMENT (L)
2.8
OPERATING RANGE
5000-6000
WEIGHT (lb.)
518
FUEL DELIVERY
EFI
GEAR RATIO
2.50:1
OTHER SPECS
Propeller
MATERIAL
Stainless Steel
DIAMETER/PITCH
15 X 21
NUMBER OF BLADES
3
PART NUMBER
990C0-00840-21P
Mounting Height
HOLE POSITION
2
JACK PLATE
N/A
TEST CONDITIONS
TEST CONDITIONS
WATER CONDITIONS
Light Chop
WIND VELOCITY (MPH)
1-3
AIR TEMPERATURE (°F)
78
FUEL LOAD (gal)
30
WEIGHT ONBOARD
2 Persons, Full Safety Gear
PERFORMANCE DATA
RPM
MPH
GPH
MPG
RANGE
Idle
2.6
0.3
8.1
234
1000
4.3
0.6
6.6
190
1500
6.1
1.1
5.3
153
2000
8.0
1.7
4.7
134
2500
11.6
2.6
4.4
128
3000
21.6
3.2
6.7
193
3500
24.7
3.8
6.5
187
4000
29.7
5.7
5.2
151
4500
34.4
7.3
4.7
136
5000
37.8
8.7
4.3
125
5500
43.2
11.7
3.7
107
6000
48.0
14.9
3.2
93
PERFORMANCE SUMMARY
TOP SPEED (MPH)
48.0
ACCELERATION (0-25 Sec.)
5.04
OPTIMUM CRUISING (RPM)
RANGE (MILES)
RANGE (MILES)
3000
193
193
BEST CRUISING (RPM)
FUEL EFFICIENCY (MPG)
FUEL EFFICIENCY (MPG)
3000
6.7
6.7
FOR MORE INFORMATION
MANUFACTURER
SeaArk Boats
LOCATION:
Monticellio, AR
SUZUKI marine
suzukimarine.com
PHONE:
870-367-5317
WEBSITE:
www.seaarkboats.com
OUTBOARD:
DF150A STEALTH
