Scott WaterJets

The Scott WaterJet (Jet Pump) comes from a Jet Sprint racing background. So our units are about delivering performance, in fact, Exceptional Performance. Our units are Two-stage standard with Trim Nozzle complete with a changeable nozzle insert.

The two-stage configuration, trim nozzle, and changeable nozzle insert allow us to optimise the performance of the jet boat combination of engine\waterjet for your specific needs.

Our WaterJet range starts with the 6.1” SWJ612 Unit, followed by the 8.1” SWJ812 Unit, the 8.5” that comes in a standard SWJ852 configuration, and the SWJ852X (HJ212) retrofittable option, and finally the “Game-Changing” 9.1” HJ212 retrofittable SWJ912.

Additionally, we are able to build a custom 9.5” for high horsepower applications.

6.1” Two-Stage with Trim – SWJ612

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Boat Size:
Up to 4 m (13 ft), smaller/lighter jet boats|
Power Range:
50–300 hp
Engine Size:
Gasoline up to 2400 cc (rpm dependent)

Suitable Engines:

1200–2400 cc NA or turbo gasoline car-based engines (e.g., Toyota, Suzuki, Honda)
Examples: Kawasaki 15F, Kawasaki Ultra 310, Rotax 1630, and similar

8.1” Two-Stage with Trim – SWJ812

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Flange:
1310 / 1410
Boat Size:
3.8 m (~12 ft) to 4.5 m (15 ft), lighter-loaded boats
Engine Size:
Gasoline 3500–6000 cc
Power Range:
250–500 hp

Suitable Engines:

V6 and lower-powered V8s
Examples: 350 Chev, Toyota 4.0L Lexus V8, GM VVT V6, Nissan VQ30 Turbo, Nissan VH45, Nissan VQ35, LS1 Chevy 5.7L, LS2 Chevy 6.0L

8.5” Two-Stage with Trim – SWJ852x

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Flange:
1310 / 1410
Boat Size:
4.5 m (15 ft) to 6 m (20 ft), medium weight/load carrying use
Power Range:
350–850 hp
Engine Size:
Gasoline 6000–9000 cc, Higher-revving diesels up to 3200 cc

Suitable Engines:

V8s and boosted V6s
Examples: Indmar 2.3L Ecoboost, 383 Chev, 351 Ford, LS1/LS2/LS3 Chevy, CT525, LT1, 5.3 DI, 6.2 DI, LSA, Raptor 440/460/575, LS7
Diesels: Steyr MO256H45 and similar

Additional Driveline Options:

Spline (H-Bar driveshaft)
Close Couple (HJ212 style)

9.1” Two-Stage with Trim – SWJ912

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Boat Size:
4.7 m (15.5 ft) to 8.5 m (28 ft), heavy-weight/load carrying use; also suited for twin configurations
Power Range:
450–1200 hp
Engine Size:
Gasoline 6200–9500 cc, Higher-revving diesels up to 4500 cc

Suitable Engines:

High-performance V8 builds
Examples: 6.2 DI, LSX454, LS7, LSA, Raptor 575, LT4, LT5, Chevy 572, 499 Mopar, custom V8s
Diesels: Mercury 4.2 TDi, Yanmar 8LV370

Scott WaterJets

6.1” Two-Stage with Trim – SWJ612

8.1” Two-Stage with Trim – SWJ812

8.5” Two-Stage with Trim – SWJ852x

9.1” Two-Stage with Trim – SWJ912

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