Boat Repowers



37 ft Chris Craft Constellation 1963
19 600 lb Displacement

Tests Run July 28 2003

Air Temp 66F     Barometer 30.04     Humidity 57%

Fuel and Water 100%
2 persons on board
1ft Chop off Port Bow
2:1 Gear Ratio
22"x22" 3 blade high torque propellers

DRBIII
R.P.M.

Both Engines
G.P.H.

Speed
M.P.H.

Speed
Knots

600

1

4.8

4.2

800

1.8

6.3

5.5

1000

2.5

7.5

6.5

1200

3.6

8.8

7.6

1400

5

9.8

8.5

1600

7

11.5

9.9

1800

8.2

13

11.2

2000

10.5

18.5

16

2200

12.5

21.5

18.7

2400

15

24

20.8

2600

17.5

26

22.6

2800

20.5

28

24.3

3000

23

30

26

3200

27

32

27.8

3400

31

34

29.5

3600

37

35.5

30.8

4100

44.5

39.5

34.3



27 FT 1939 Triple-Cockpit Greavette
Top Speed - 50 M.P.H. @ 4300 R.P.M.
Propeller - 17 x 22   3 Blade

 


27 FT 1991 Sportscraft Fishmaster

Old Engine

New Engine

7.4 L Carburated

8L V-10 Dolphin Fuel Injected

Cruising Speed
 22.5kts (26 M.P.H.) @ 3200  R.P.M.  22kts ( 25.5 M.P.H.) @ 2600 R.P.M.
   Fuel Consumption
 14 G.P.H.(US)  8.75 G.P.H.(US)
Top Speed
 29kts (33 M.P.H.) @ 4200 R.P.M.  33kts (38 M.P.H.) @ 4100 R.P.M.
   Fuel Consumption
 24 G.P.H.(US)  22.25 G.P.H.(US)
Sea Conditions
 calm to light breeze, sunny  sunny with light N.W. breeze
Propellers
 18x22   3 Blade Ellis Medium Cup  19x19   3 Blade High torque No Cup
Transmissions
 2:1 Reduction ZF  1.5:1 Reduction

 

DEMONSTRATIONS AVAILABLE UPON REQUEST

Engine Comparison
Re Power Story
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