This is an outline of the class structure of the Australian Pulling scene.
There are no engine limitation . 20% nitro allowed
Weights are 3.4 , 4.2 , 5.1 tonne
The class has a 1000 ci inch limit on naturally aspirated engines and 500 ci limit
with forced induction. Fuel . as per open .
Weights are 3.4, 3.8, 4.3 tonne
Engine limit 351 ci No forced Induction . Fuel . pump and av gas only.
Weight 2.4, 2.9 , 3.4 tonne
Engine no ci limit ,with natural aspiration, 290 ci limit with forced induction.
Weight 2500 kg 2600kg and 2750 kg.
Fuel as per Open Mod
Engine limit 351 ci no forced induction. Fuel as per limited mod.
Weight . 760 kg 825 kg, 900 kg. Automotive transmissions only.
Open mini Mod.
No limits on engines and transmissions .
Fuel . as per open mod + 20% nitro allowed
Weight 860 kg , 900 kg 950 kg.
Weight 3.8, 4.2, 4.6 Tonne
Turbo size 3.1/2 inch max on intake side
Tyre size 30.5 X 32 .
ALL THE ABOVE MENTIONED CLASSES NEED TO MEET
THE GENERAL RULES .