IMPELLER SELECTION CHART

SD-312
 

H.P.

8.1S

8.1A

5.7S

5.7A

4.3S

4.3A

150

3075

3200

3350

3500

3650

3800

200

3400

3550

3700

3850

4000

4200

250

3650

3800

4000

4150

4300

4500

300

3850

4050

4200

4400

4575

4800

350

4050

4225

4450

4625

4825

5025

400

4250

4425

4625

4850

5025

5300

450

4475

4650

4800

5025

5250

5500

500

4575

4800

5000

5225

5415

5700

550

4725

4950

5175

5400

5600

5900

*THESE RPM VALUES MAY VARY ACCORDING TO HOW YOUR BOAT ALLOWS THE PUMP TO LOAD

HORSE POWER REQUIREMENTS ARE AT THE PUMP SHAFT

 

 

AMERICAN TURBINE JET DRIVE
IMPELLER SPECIFICATIONS

IMPELLER SIZE

SMALL DIAMETER

MACHINED ANGLE

8.1S

AS CAST

DEGREES

8.1A

7.878

26 DEGREES

5.7S

7.15

28 DEGREES

5.7A

6.95

28 DEGREES

4.3S

6.75

28 DEGREES

4.3A

6.57

28 DEGREES