Super farm tractors must retain the original gearbox and rear axle and are limited to a maximum engine size of 405 cubic inches (6.6litre). They can only run a single turbocharger, albeit of any size, and must use diesel fuel only. They are limited to 3000 RPM and compete at 3500kg. Power estimates to be in the region of 500hp-800hp. The super farm class is generally considered the introductory class to the sport.
Rob Roy
NEWS LETTERS
TRACTOR - ROB ROY
Owner / Driver - Lachlan Kennedy
Make - Massey Ferguson 590 with updated 6480 panelwork
Turbo's - Single Holset Turbo
Engine - 6 cylinder Perkins 372ci
Fuel - Diesel
Intercooler - Air Cooled
Diesel Ross
TRACTOR SPECIFICATION
TRACTOR - Diesel Ross
Owner / Driver - Martin Ross
Make - Fendt 612LSA with updated 936 panelwork
Turbo's - Single modified Holset Turbo
Engine - 6 cylinder MWM 381ci, bored out to 401ci
Fuel - Diesel
Intercooler - Water/Ice
Mission Impossible
TRACTOR SPECIFICATION
TRACTOR - Mission Impossible
Owner / Driver - Drew Allan
Make - John Deere 3120 with updated panelwork
Turbo's - Single Turbo
Engine - 6 cylinder John Deere 359ci
Fuel - Diesel
Intercooler - Air Cooled
Green Envy
TRACTOR SPECIFICATION
TRACTOR - Green Envy
Owner / Driver - Jim Pirie
Make - Claas
Turbo's - Single Turbo
Engine - 6 cylinder John Deere 359ci
Fuel - Diesel
Intercooler - Water
Supersport
Supersport tractors must retain the original gearbox and rear axle and are limited to a maximum engine size of 549 cubic inches (9 litre) at 2700rpm, or at 510 cubic inches (8.3 litre) where they can run up to 3200rpm. They can only run a single turbocharger, albeit of any size, and must use diesel fuel only. These tractors compete at 4500kg. Power is estimated to be up to 1500hp, but with relatively low RPM torque is extremely high!
Take It To The Limit
TRACTOR SPECIFICATION
TRACTOR - Take It To The Limit
Owner / Driver - Gordon Morrison
Make - Fiat 1300 Super
Turbo's - Single Holset Turbo
Engine - 6 cylinder Fiat 494ci
Fuel - Diesel
Intercooler - Air Cooled
Limited Prostock
Limited Prostock tractors must retain the original gearbox and rear axle and are limited to a maximum engine size of 405 cubic inches (6.6 litre). They can only run a single turbocharger, albeit of any size, and must use diesel fuel only. There is no RPM limit. These tractors compete at 3500kg. Power is estimated to be up to 1100hp.
True Blue
TRACTOR SPECIFICATION
TRACTOR - True Blue
Owner / Driver - True Blue Team
Make - Ford 8600
Turbo's - Single Holset Turbo
Engine - 6 cylinder Ford 401ci
Fuel - Diesel
Intercooler - Water/Ice
The Gambler
TRACTOR SPECIFICATION
TRACTOR - The Gambler
Owner / Driver - Neil Gullan
Make - Fordson Super Major
Turbo's - Single Holset Turbo
Engine - 6 cylinder Ford Cargo 380ci
Fuel - Diesel
Intercooler - Water cooled plus water injection
Prostock
Prostock tractors are limited to a maximum engine size of 510 cubic inches (8.3litre). They can only run a single turbocharger, albeit of any size, and must use diesel fuel only. There is no RPM limit. These tractors compete at 3500kg. It is not uncommon to see these tractors generate 2500hp.
Pist "n" Broke
TRACTOR SPECIFICATION
TRACTOR - Pist "n" Broke
Owner / Driver - Alex Rearie
Make - John Deere 4430
Turbo's - Single Holset HX82 Turbo
Engine - 6 cylinder John Deere 466ci, stroked to 510ci
Fuel - Diesel
Intercooler - None, water injection used
TRACTOR SPECIFICATION
TRACTOR - Total Madness
Owner / Driver - Jim Low
Make - New Holland
Turbo's - Single Holset Turbo
Engine - 6 cylinder Ford, 456ci
Fuel - Diesel
Intercooler - Air/Water
Superstock
Superstock tractors are limited to a maximum engine size of 650 cubic inches (10.65litre). They can only run up to four turbochargers of any size with a maximum of three pressure stages. Tractors can use either diesel fuel or methanol fuel. There is no RPM limit. These tractors compete at 3500kg. Diesel Superstocks generate in the region of 150psi boost pressure at 5000rpm. Methanol Superstocks tend to run lower boost (70-80psi) but higher rpm (7000+) Power estimates anything from 1800hp to 4000hp.
Perkoil Express
TRACTOR SPECIFICATION
TRACTOR - Perkoil Express
Owner / Driver - David Gall
Make - Massey Ferguson 2775
Turbo's - 1 Holset and 1 AiResearch 2 Stage
Engine - 8 cylinder Perkins V8 640ci
Fuel - Diesel 5 litre per 100m
Intercooler - None
Modified
Modified tractors can use any gearbox and any rear axle. There is generally no engine, turbocharger, fuel or RPM limit. Modifieds may add or remove engines to compete in different classes as they can compete in Light Modified (2500-2700kg), Modified (3500-3700kg) and Heavy Modified (4200-4500kg). Modifed tractors are the most spectacular in all Tractor Pulling, where some heavy modified tractors can generate over 10000hp.