UNDER NO CIRCUMSTANCES SHOULD YOU EVER USE A PROP
WHICH WILL ALLOW YOUR OUTBOARD TO OPERATE ABOVE THE
OUTBOARD'S RECOMMENDED MAXIMUM RPM's!
Theoretically,
a propeller with a 14-inch pitch, when rotated one full
turn, would advance a boat 14 inches through the water.
In reality, no 14-inch pitch blade will advance a boat
14 inches with one full turn. This variance is referred
to as slippage.
*Definition of Loads
Light:
100-500 lb.
Moderate:
500-1500 lb.
Heavy:
1500-3000+ lb.
NOTE:It
is highly recommended that the outboard be checked with
a tachometer to ensure that the engine is operating
within the correct MAXIMUM RPM RANGE.
Nissan Outboard
Propeller Chart Propellers
have two basic dimensions; diameter & pitch.
Diameter is the distance measured across the propeller
hub line from the outer edge of the circle that is made
by the propeller's blades during rotation. Pitch is the
distance that a boat will travel if rotated one
revolution without any slippage. When describing a
propeller both the diameter and pitch are given. The
diameter is referenced first and the pitch is second.
Therefore, a 12" x 9" propeller would have a
12-inch diameter and a 9-inch blade pitch.
In
general, changing to a higher pitch prop will increase
your top-end speed but reduce your acceleration (reduce
your "hole-shot" power). On the other hand,
decreasing the pitch will increase your hole-shot but
sacrifice some of your top-end speed. If the hole-shot
speed is important to you, for example if you pull water
skiers most of the time, then you would want to go with
a lower pitch prop and sacrifice some of your top-end
speed but increase your hole-shot speed to get the
skiers up faster. The
propeller selection chart can be used to help you in
selecting the correct propeller for your Nissan outboard. Remember that in any application,
discrepancies in performance can result due to the
different boat hull designs, the final carrying load and
your particular needs.
Models
Load*
Dia
Pitch
# Blades
Standard
Equipment
Nissan Part #
NSF2A/2.5A/NSF3.5A (4-Stroke)
Light
7.4
7
3
ü
3F0641010M
Moderate to Heavy
7.4
5.7
3
309641060M
Heavy
7.4
4.5
3
314641030M
NS2.5A
& NS3.5A (2-Stroke)
Light
7.4
7
3
3F0641010M
Moderate to Heavy
7.4
5.7
3
ü
309641060M
Heavy
7.4
4.5
3
(recommended for 2.5 only)
314641030M
NS3.5B (2-Stroke)
Light
7.4
7
3
ü
3F0641010M
Moderate to Heavy
7.4
5.7
3
309641060M
NSF4
/ NSF5
/ NSF6 (4-Stroke)
Light
7.9
9
3
369W645181
Moderate
7.7
8
3
ü(5hp
& 6hp)
3R1B645160
Heavy
7.7
7
3
ü(4hp)
3R1W645140
7.9
6
3
393B645121
NS5B (2-Stroke)
Light
7.9
9
3
369W645181
Moderate
7.7
8
3
ü
3R1B645160
Heavy
7.7
7
3
3R1W645140
7.9
6
3
393B645121
NS8
& NS9.8 (2-Stroke)
Light
8.5
9.5
3
3B2W645191
8.5
9
3
ü(short
shaft)
3B2W645171
Moderate
8.5
8
3
ü(long
shaft)
3B2W645150
8.9
7
3
3B2W645140
Heavy
8.7
7
4
(high thrust)
3B2W645120
8.5
6.5
3
3B2B645131
8
6
3
3B2W645126
8
5
3
3B2W645125
8.7
5
4
(high thrust)
3B2W645110
NSF8
& NSF9.8 (4-Stroke)
Light
8.5
9.5
3
3B2W645191
8.5
9
3
ü(9.8hp
short
shaft)
3B2W645171
Moderate
8.5
8
3
ü(8hp
ALL
9.8hp long/ultra-long
shaft)
3B2W645150
8.9
7
3
3B2W645140
Heavy
8.7
7
4
(high thrust)
3B2W645120
8.5
6.5
3
3B2B645131
8
6
3
3B2W645126
8
5
3
3B2W645125
8.7
5
4
(high thrust)
3B2W645110
NS9.9 & NS15 (2-Stroke)
Light
9.2
9.8
3
362B641080
9.2
9.1
3
362W641010
Moderate
9.2
8.5
3
ü(short
shaft)
362W641020
9.2
7.8
3
ü(long
shaft)
362W641030
Heavy
9.2
6.9
3
362B641050
9.2
6.1
3
362W641070
NSF9.9
/
NSF15
/
NSF18 / NSF20 (4-Stroke)
Light
9.2
9.8
3
ü(15/18/20
short shaft)
362B641080
9.2
9.1
3
ü(9.9
short
15/18/20 long shaft)
362W641010
Moderate
9.2
8.5
3
ü(9.9
long shaft)
362W641020
9.2
7.8
3
362W641030
Heavy
9.2
6.9
3
362B641050
9.2
6.1
3
362W641070
NS18 (2-Stroke)
Light
9.2
9.8
3
362B641080
9.2
9.1
3
ü(short
shaft)
362W641010
Moderate
9.2
8.5
3
ü(long
shaft)
362W641020
9.2
7.8
3
362W641030
Heavy
9.2
6.9
3
362B641050
9.2
6.1
3
362W641070
NS25
& NS30 (2-Stroke)
Light
9.9
14.2
3
346W641055
9.6
13
3
ü(short
shaft)
3R0W645270
Moderate
9.8
12
3
3R0W645250
9.8
11
3
ü(long
shaft)
3R0W645230
9.7
10
3
3R0W645210
Heavy
9.9
9.3
3
3R0W645180
10.2
8.3
3
346B641065
NSF25 & NSF30 (4-Stroke)
Light
9.9
14.2
3
346W641055
9.6
13
3
3R0W645270
Moderate
9.8
12
3
3R0W645250
9.8
11
3
3R0W645230
9.7
10
3
3R0W645210
Heavy
9.9
9.3
3
3R0W645180
10.2
8.3
3
346B641065
NS40C (2-cylinder)
Light
11
15
3
3T5645320M
11.1
14
3
3T5645290M
11.1
13
3
3T5645270M
Moderate
11.4
12
3
3T5645250M
11.6
11
3
3T5645230M
10.8
9.9
3
361W641090
Heavy
11.2
8.7
3
348W641070
11.4
7.1
4
348W641080
NS40D
& NS50D (3-cylinder)
NSD40 & NSD50 (TLDI)
Light
11.1
15
3
3T5645320M
11
14
3
3T5645290M
Moderate
11.1
13
3
3T5645270M
11.4
12
3
3T5645250M
Heavy
11.6
11
3
3T5645230M
12.1
9
3
3T5645180M
11.2
8.7
3
348W641070
11.4
7.1
4
348W641080
NS70A
& NS70B (2-Stroke)
Light
10.9
17.6
3
353641090M
10.7
16.4
3
353641080M
11
15
3
353641070M
Moderate
11.4
14
3
353641060M
11.5
13
3
353641050M
11.6
12
3
353641040M
Heavy
11.5
11
3
353641030M
11.5
10
3
353641020M
12
9
3
353641010M
NS70C
/ NS90 (2-Stroke)
NSD70
/ NSD90 (TLDI)
Light
12.75
21
3
3N4W645451
13
19
3
3N4W645411
13.25
17
3
3N4W645361
Moderate
13.25
16
3
3N4W645341
13.75
15
3
3N4W645321
Heavy
14
13
3
3N4W645271
14
11
3
3N4W645231
NSD115 (TLDI)
Light
12.75
21
3
3T1W645450
13
19
3
3T1W645410
13.25
17
3
3T1W645360
Moderate
13.25
16
3
3T1W645340
13.75
15
3
3T1W645320
Heavy
14
13
3
3T1W645270
14
11
3
3T1W645230
NS120
& NS140 (2-Stroke)
Light
12.75
21
3
3N4W645451
13
19
3
3N4W645411
13.25
17
3
3N4W645361
Moderate
13.25
16
3
3N4W645341
13.75
15
3
3N4W645321
Heavy
14
13
3
3N4W645271
14
11
3
3N4W645231
The
selection of the correct propeller will allow the engine to obtain it's
full RPM as well as the designated horsepower. Engine horsepower is very
closely related to the RPM that the outboard can obtain. In other words,
if the outboard can not reach its specified RPM, it cannot reach its
specified horsepower.
We hope
that this selection chart helps you in making the right decision when
choosing a propeller for your Nissan outboard.
