Victorian Council

Australian Power Boat Association


 

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Race Boats and Classes

Definitions:
INBOARD means a motor unit mounted inside the hull and driving through a Straight Drive, V-Drive,Stern Drive or Water Jet, and of a type used in automotive or marine applications.
DISPLACEMENT means the hull has NO steps, recesses or tunnels more than 1-3/8" (approx. 35mm) deep.
HYDROPLANE means the hull has steps, recesses or tunnels more than 1-3/8" (approx. 35mm) deep.
OUTBOARD mean an engine with gearbox attached as a unit mounted on the rear of the boat.
UNRESTRICTED means the hull may be of any type or configuration.
UNLIMITED means unlimited, but must remain of an automotive configuration.
LIMITED means the volume of the motor is not more than the stated limitation.
BLOWN means supercharged, turbocharged or any other method of forced induction.
CARBURETTOR means a device that delivers fuel by Venturi effect.
FUEL INJECTION means a device that delivers fuel under pressure directly into the induction system.
CIRCUIT means the boats race around a course
DRAG means the boats race in a strait line over a 400 metre course..

Classes: Circuit Racing
GRAND PRIX HYDROPLANE
The Grand Prix Hydroplane is the one of the fastest and most spectacular class of powerboat competing in Australia and New Zealand. The Grand Prix Hydroplane class is of international standard with competitors in New Zealand, U.S.A and Canada.
Hulls are manufactured from conventional timber to the most modern composite materials available. Size of these craft are generally 24 feet in length and are powered by either supercharged or turbo charged Chevrolet engines producing some 1600 hp, propelling the craft up to 175 mph in race conditions.
B.A.D (BLOWN ALCOHOL DISPLACEMENTS)
B.A.D Boats design is more of your traditional ski boat style with craft generally 21 feet in length. However that's were the similarity ends with a traditional ski boat. The B.A.D Boats use the same big block, high performance automotive engines as the Grand Prix Hydroplanes, which produce 1600 hp. The B.A.D. Boats can reach speeds of up to 140 mph in the straight a ways.
6 LITRE DISPLACEMENT
6 Litre Displacements are displacement craft generally 18 feet in length with either carburetted or injected 6 Litre engines producing some 670 hp. The class is one of the most competitive in Australia with large fields of competitors reaching speeds up to 120 mph.
5.2 LITRE DISPLACEMENT
The 5.2 Litre Displacement Class is the perfect lead in class to 6 Litre and B.A.D with similar feel race craft at speeds up to 100 mph providing the drivers and fans exciting close racing.
OZ BOATS
The Oz Boats Class comprises of both Hydroplanes and Displacements. Both craft are fitted with Stock 4.2 Litre V8, 253 Holden Motors. The motors are limited to modification by a set of rules. The engines in general are required to be of genuine Holden parts or standard replacement pasts with only the cam being free from restriction, roller rockers may also be used and the choice of wet or dry sump is allowed. Engine can produce up to 330 hp and are spun at approximately 7200 rpm.
The Hydroplane class are smaller versions to the Grand Prix Hydroplane with craft reaching 120 mph, many teams opting for fully enclosed or open reinforced cockpits. The Displacement class is the smallest displacement class approximately 15.6 feet in length and racing at 85 mph.
OZ LITES
The Oz Lites are the smallest class of hydroplane competing with craft 16 feet in length, powered by 1600 cc Toyota engines. Craft developments propel the craft at 100 mph.
The class is a low cost form of powerboat racing which provides competitors a reliable, yet fast form of racing at a cost all can afford. The Class boosts some of the largest fields of any form of power boating with up to 14 competitors racing in the Australian Series.
OUTBOARDS
Like the Grand Prix Hydroplane this class is a renowned international class with a World Series in place. Australia's drivers are technically skilled with five drivers competing throughout South Africa and Asia, with Craig Bailey from Sydney the winner of the France Round of the World Championship a few years ago.
The lightweight craft literally fly across the water at speeds of up to 125 mph.
Juniors, J1(6hp), J2(10hp), J3(15hp)
A special class of racing is available for Junior Drivers from the age of twelve to sixteen years. Junior racing is based on a Mono, Wing type hull or hydroplane powered by a standard low HP outboard motor.
The Juniors race around a shortened course learning about race craft and forming driving skills in readiness for competition at a higher level, they are required to have the same safety equipment as senior racers.

Classes: Drag Racing
INBOARD HYDROPLANE CLASSES (Petrol or Alcohol) CLASS DESIGNATION
Top Fuel Hydroplane TFH, Fuel - Only alcohol or alcohol/nitro methane mix up to 50% nitro methane.
Blown Alcohol Hydroplane BAH
Blown Hydro Under BHU
Blown Single Drive (Max 500 ci & 8/71 Supercharger, NO two speeds) BHL
Limited 6001cc to 9260cc LHO
Limited under 6000cc LHU
INBOARD DISPLACEMENT CLASSES (Petrol or Alcohol) CLASS DESIGNATION
Blown Alcohol Displacement BAD
Blown Alcohol Flat-bottom BAF
Limited 6001cc to 9260cc LAD
Limited 4601cc to 6000cc SLD
Limited under 4600cc FLD
OUTBOARD CLASSES (Petrol or Alcohol) CLASS DESIGNATION
Unlimited Unrestricted Outboard UOB
Unlimited Outboard Mono Hull UOM
1250cc 1250
550cc 550
SPEED BRACKET CLASSES CLASS DESIGNATION
Up to 65 mph Social Stock
65mph to 75mph Stock Eliminator
76 – 85 mph Mod Stock
86-95 mph Super Stock
96-105 mph Super Comp

 

 

 

 

OZBoat
Displacement
 

GP Hydroplane
OzLite 1.6L
25hp Outboard
Drags Boats
SLD
LAD
BHL
J3 (Junior)
Unlimited Outboard