GENERAL DIMENSIONS

Overall length - 730mm maximum

Overall width - 310mm maximum.

Wheelbase - 270mm to 330mm.

Overall height - measured from the ground including roll bar at full suspension Compression is 250mm maximum (this measurement does not include the receiver Aerial). The measurement of the wheelbase may be made by simple measure of axle centre distances with the suspension in any position. It is then suggested that the wheels are removed and the wheel spindles are firmly placed on vee blocks whilst accurate measurements are made. The minimum weight limit shall be 3.2kg/7.04lbs (including fuel and transponder). Drive train is to consist of three buggy style differentials. Single speed gearbox only. No multiple speed gearboxes allowed.

Engines and Fuel Tank

An Internal combustion engines of not more than 3.5 cubic centimetres/0.214 cubic Inches. If an RTR comes with an engine size not exceeding 0.28 cubic inches / 4.67 cubic centimeters it will be allowed as long as the pull start is operational. If the engine is to be replaced it must be the exact same engine or a 0.21 cubic inches size engine. Fuel Tank capacity: 125ccm including all piping, tubes and filter up to the carburetor. The tank will be measured using an AARCMCC approved measuring cylinder. The capacity of the fuel tank must not be adjusted by insertion of any loose objects. All cars will be fitted with brakes and clutch in such a manner as that the car can be held stationary whilst the engine is running.

Silencers

Only IFMAR homologated silencers are allowed. The silencers used on the car have to bear their homologation number, as per Homologation sheet issued by IFMAR.

Wheels and Tyres

All tyres must be black with the exception of sidewall lettering. No spikes, tubes or additional items intended to increase traction may be either glued to the outside of tyres or passed through tyres from the inside. 1/8 buggy tyres are only to be used.

Wings

A wing of maximum overall size 217mm length and 77mm width may be fitted.

Appearance

Cars shall be a reasonable representation of the style of car used for Off-Road, Desert or Trial racing. Full body shells of saloon style are permitted but may only be trimmed to expose a maximum of 50% of the tyres at full suspension depression. Where a roll-cage is fitted an open wheel style body shell must be fitted underneath the cage so designed as to enclose R/C equipment and fuel tank with sufficient front and side areas to allow clear display of racing numbers. Openings may be cut in the shell to allow access to fuel filler, radio switch and engine Adjustment. Clearance around such items shall be kept to a minimum. No greater than 50% of front window is to be removed.  Windows to remain transparent. Bodies with windows painted out will not be accepted. Pre-painted ready-to-run (RTR) bodies the only exception to this rule. Aerial hole size not to be greater than 10mm in diameter. Engine head-cooling hole to be no greater than 10mm of cooling head in diameter. Only exceptions will be holes for tuning purposes. Front and rear bumpers not to exceed 10mm past the body unless O.E.M. (Original Equipment Manufacture/or factory). Acceptance of a Saloon body shell by another IFMAR section shall be deemed to imply Approval by the Off-Road Section for racing purposes. 

Fuel

The following additives are strictly prohibited; Hydrazine, Hydrogen Peroxide, Toluene, And Propolene Oxide. Random fuel tests may be made at any time during the event. Samples and counter samples will be collected for analysis and any competitor found to be using any of the above Additives will be disqualified and any race result obtained will be null and void.

Driver Aids

GENERAL DIMENSIONS

Overall length - 730mm maximum.

Overall width - 465mm maximum.

Wheelbase - 345mm to 405mm.

Overall height - measured from the ground including roll bar, at full suspension compression is 250mm maximum. The minimum weight limit shall be 3.9kg/3900 grams (including fuel and transponder) it is the responsibility of the drivers to ensure that his\her car complies with the rules at all times. Drive train is to consist of three buggy style differentials. Single speed gearbox only. No multiple speed gearboxes allowed. With tyres removed from the vehicle, chassis placed under full compression the lowest part of the engine is not to exceed 40mm in height

Engines and Fuel Tanks

Internal combustion engines of not more than 4.67 cubic centimeters 0.28 cubic inches. No tolerance allowed. Fuel tank capacity: 150ccm including all piping, tubes and filters up to the carburetor. The tank will be measured using an Australian approved measuring cylinder. Bump start engines accepted. All cars will be fitted with brakes and clutch in such manner as that the car can be held stationary whilst the engine is running.

Silencers

Only IFMAR homologated silencers are allowed. The silencers used on the car have to bear their homologation number, as per Homologation sheet issued by IFMAR.

Wheels and Tyres

Minimum wheel diameter is 80mm. (This does not include glue bead). Minimum tyre diameter is 118mm. 1/8th Buggy wheels/tyres not accepted. All tyres must be black with the exception of sidewall lettering. No spikes, tubes or additional items intended to increase traction may be either glued to the outside of tyres or passed through tyres from the inside.

Wings

A wing of maximum overall size: 217mm in length and 77mm in width may be fitted.

A ppearance

Must be a good representation of a Stadium/Arena style truck body. No buggy or sedan bodies will be accepted. Body mould lines will not be altered other than for the purpose of an exit hole for the Silencer. Where a roll-cage is fitted an open wheel style body shell must be fitted underneath the cage so designed as to enclose R/C equipment and fuel tank with sufficient front and side areas to allow clear display of racing numbers. Openings may be cut in the shell to allow access to fuel filler, radio switch and engine Adjustment. Clearance around such items shall be kept to a minimum. No greater than 50% of front window is to be removed.  Windows to remain transparent. Bodies with windows painted out will not be accepted. Pre-painted ready-to-run (RTR) bodies the only exception to this rule. Aerial hole size not to be greater than 10mm in diameter. Engine head-cooling hole to be no greater than 10mm of cooling head in diameter. Only exceptions will be holes for tuning purposes. Front and rear bumpers not to exceed 10mm past the body unless O.E.M. (Original Equipment Manufacture/or factory).

Fuel

The following additives are strictly prohibited; Hydrazine, Hydrogen Peroxide, Toluene, And Propolene Oxide. Random fuel tests may be made at any time during the event. Samples and counter samples will be collected for analysis and any competitor found to be using any of the above Additives will be disqualified and any race result obtained will be null and void.

Driver Aids

It must be a good representation of a "Monster Truck", No Buggy or Truggy conversions are Allowed. The lowest point of the engine must sit at least 1.5 inches above the lowest point along the front-back centre line when compressed (usually the "skid plates"). To Tech a questionable M.T., remove the wheels, place M.T. on flat surface, and compress the vehicle fully.   A ruler (or 1.5" gauge) can be used vertically to measure the engine above the surface.

No Width restrictions.

No Length restrictions.

No Weight restrictions.

It is the responsibility of the drivers to ensure that his\her car complies with the rules at all times. Transmission: Single, two or three speed forward only automatic shifting transmissions are allowed. NOTE: reverse functions must be disabled for racing.

Engines and Fuel (Small Block)

Internal combustion engines of unlimited capacity allowed. Engines must be of small block configuration no medium or big block engines permitted. Fuel Tank capacity: 150ccm including all piping, tubes and filter up to the carburetor. The Tank will be measured using an AARCMCC approved measuring cylinder. Fuel tanks may be replaced but must comply with the above ruling. The capacity of the fuel tank must not be adjusted by insertion of any loose objects. All cars will be fitted with brakes and clutch in such a manner as that the car can be held stationary whilst the engine is running. Internal combustion engines of unlimited capacity permitted.

Engines and Fuel (Big Block)

Minimum engine capacity of   .21 cubic inches only permitted. Engines must be of big block configuration no medium or small block engines permitted. Fuel Tank capacity: 230ccm including all piping, tubes and filter up to the carburetor. The Tank will be measured using an AARCMCC approved measuring cylinder. Fuel tanks may be replaced but must comply with the above ruling. The capacity of the fuel tank must not be adjusted by insertion of any loose objects. All cars will be fitted with brakes and clutch in such a manner as that the car can be held Stationary whilst the engine is running. Internal combustion engines of unlimited capacity permitted.

Silencer

Any chambered exhaust system is allowed. No open chamber pipes to be used.    (Noise Restrictions will apply)

Wheels and Tyres

Minimum wheel diameter is 81mm. (This does not include glue bead). Minimum tyre diameter is 130mm. All tyres must be black with the exception of sidewall lettering. No spikes, tubes or additional items intended to increase traction may be either glued to the outside of tyres or passed through tyres from the inside.

Wings

A wing of maximum overall size: 217mm in length and 77mm in width may be fitted.

Appearance

Must be a good representation of a Monster Truck body. No buggy or sedan bodies will be accepted. Where a roll-cage is fitted an open wheel style body shell must be fitted underneath the cage so designed as to enclose R/C equipment and fuel tank with sufficient front and side areas to allow clear display of racing numbers. Openings may be cut in the shell to allow access to fuel filler, radio switch and engine Adjustment. Clearance around such items shall be kept to a minimum. No greater than 50% of front window is to be removed.  Windows to remain transparent. Bodies with windows painted out will not be accepted. Pre-painted ready-to-run (RTR) bodies the only exception to this rule. Aerial hole size not to be greater than 10mm in diameter. Engine head-cooling hole to be no greater than 10mm of cooling head in diameter. Only exceptions will be holes for tuning purposes. Front and rear bumpers not to exceed 10mm past the body unless O.E.M. (Original Equipment Manufacture/or factory).

Fuel

The following additives are strictly prohibited; Hydrazine, Hydrogen Peroxide, Toluene, Propolene Oxide. Random fuel tests may be made at any time during the event. Samples and counter samples will be collected for analysis and any competitor found to be using any of the above Additives will be disqualified and any race result obtained will be null and void.

Driver Aids