autocross technical regulation

AUTOCROSS
TECHNICAL
REGULATION
2017
Art:1
1.1:ELIGIBLE CARS
Homologated in Group A/N
Cars not homologated with the FMSCI but produced in series and
regularly on sale through a recognised commercial network are also
eligible. Purpose built vehicles conforming to the relevant regulations.
It is up to the applicant to supply the elements necessary for proving the
eligibility of a model.
1.2:TELEMETRY
Any form of wireless data transmission between the vehicle and
any person and/or equipment is prohibited while the car is on the
track. Voice radio communications between the driver and his/her
team is permitted.Transponder from the official timekeeping, and Automatic
timing recording. On‐board data recorders are allowed.
1.3:GPS
GPS Units are allowed as long as there is no wire or wireless
connection with any of the electronic systems of the car. This
definition includes in particular the dashboard, meters, the engine
management unit, etc. Car speed measurement devices must be totally
independent and cannot be connected in any way with any system of the car.
1.4:TURBO CHARGING
A multiplication factor of 1.7 for petrol engines and 1.5 for Diesel engines
will be applied.
1.5:FUEL.
Free, should be sourced from a legal government authorised distribution
outlet.
1.6:MODIFICATIONS ALLOWED AND/OR OBLIGATORY
All modifications which are not explicitly allowed by the present regulations
are forbidden.An authorised modification may not in the process entail a
non‐authorised modification.
Art.2
GROUP | STOCK
Modifications not mentioned below are strictly not authorised :
2.1:The minimum weight of the car should conform to OE manufacturer
endorsed specs/data.
2.1a:Engine control unit / ECU Is free ( piggy back units permitted )
2.1b:Air Filter and its housing is free.
2.1c:Spark plugs and HT cables are free.
2.1d:Exhaust beyond the first muffler is free but must exit at the vehicle
shell perimeter.
2.1e:Sound level should not exceed 103db.
2.1f:Lubricants are free.
2.1g:Bodykits, front lip spoilers, Boot/roof spoilers are free.
2.1h:Headlamp and tail lamp units are free but should be installed in their
respective locations.
2.1i:Wheel Rim, size and material are free.
2.1j:Steering wheel is free but spinner knobs not allowed.
2.1k:Gear knob is free but the lever is not.
2.1l:Accelerator/brake and clutch pedal covers are free.
2.1m:Spare wheel may be removed from the car.
2.1n:Tyres and their size are free while respecting that special limited
production tarmac semi slicks / off road rally tyres are not allowed.
Art. 3
GROUP | MODIFIED
All modifications authorised and specified in Group STOCK and in addition
the following:
The following items are free respecting the special riders detailed below:
3.1a:ENGINE BLOCK
Free*
3.1b:CYLINDER HEAD
Free*
3.1c:INTAKE MANIFOLD
Free*
3.1d:TRANSMISSION SYSTEM / GEARBOX
Free* ( Weld / Electric / Pneumatic locking of differential is not permitted )
3.1e:DRIVESHAFT
Free*
The assemblies mentioned between art. 3.1a-3.1e must be the
same as that provided by the manufacturer for that series of donor
chassis. This includes evolution variants produced for the same
chassis.
(* e.g. an Esteem can be fitted with any Maruti Suzuki Engine that was
produced for the market in the Esteem shell only).
Internals of the above listed systems are free , provided that the
modifications respect the group/class specifications that the
vehicle is competing within.
Modifications such as adding, removal of material, drilling,
welding, machining, porting are permitted.
After Market Turbo Charging/ Supercharging/ NOS kits etc. are not permitted.
OE turbo cars will be subjected to the relevant multiplication factor.
3.2.1:IGNITION SYSTEM
Only one spark plug per cylinder with a thread outer diameter of
≥ M10 is permitted.
Ignition is only permitted by means of not more than a single ignition coil
per cylinder.
3.2.2:INJECTION SYSTEM
The injection system is free but with the following restrictions .
A combination of direct injection and port injection systems is not allowed.
Internal and/or external spraying or injection of water or any substance
whatsoever is forbidden (other than fuel for the normal purpose of
combustion in the engine).
The body of the injector must come from a Manufacturer’s commercial
catalogue. Only solenoid injectors are allowed.
3.2.3:TURBOCHARGERS
Only OE installed turbocharger systems allowed, this includes all turbo
system components, mainly waste gates, plumbing and intercoolers.After
market fitment of this system is prohibited.
3.2.4a:INTAKE MANIFOLD.
Custom made and ITB intake manifolds are not allowed.
All air entering the engine must imperatively pass through the
throttle opening or the opening of this air injection system.
The size of the single throttle body is free.
3.2.4b: EXHAUST MANIFOLD.
The exhaust manifold from its attachment at the cylinder head is free.
All vehicles must be equipped with a muffler/spark arrestor, the position of
which is free. The exhaust gases must, at all times, pass through this device.
The exit of the exhaust pipe must be situated at the rear/side of the car,
within the perimeter of the car, and be less than 10 cm from this
perimeter. The exhaust exit must be horizontal.
3.2.5:OIL PUMP / SYSTEM
Free.Lubrication by dry sump is not allowed.
It is possible to improve the oil circulation internal to the engine.
Installation of aftermarket oil coolers is not permitted.
3.2.6:FLYWHEEL
Free.
3.2.7:CLUTCH
Free.
3.2.8:COOLING SYSTEM
Radiator core dimensions are free but they (width, height, thickness/total
surface area) cannot be smaller than the standard part. The OE mounting
points to be respected.
Radiator cooling fan is free but the number is not.
Any spraying system on to the engine water radiator is prohibited
3.2.9:ELECTRICAL SYSTEM
The make, model number, and size of the battery may be changed but not
its voltage. Relocation of the battery is permitted but not into
the passenger compartment.
The addition of electrical grounding cables and associated distribution
blocks/terminals is permitted.
3.2.10:SOUND
A limit of 103 dB/A is imposed for all cars.
The noise must be measured in accordance with the noise
measuring procedure using a sonometer regulated at "A" and
"SLOW", placed at an angle of 45° to and a distance of 1 meter
from the exhaust outlet, with the car's engine running at 4500 rpm
3.2.11:SUSPENSION
Cars must be fitted with a sprung suspension.
The use of active suspension is forbidden.
Coil/leaf springs are compulsory and must be made from metallic material.
Number of springs is Free.
3.2.12:SHOCK ABSORBER
Twin shock absorber per wheel is not authorised.
All shock absorbers must be independent of each other
Once the springs are removed, the vehicle must sink down to the
bump stops in less than 5 minutes.
With regard to their principle of operation, gas‐filled shock
absorbers are considered as hydraulic shock absorbers.
Changes to the spring and shock absorber settings from the cockpit
are prohibited.
3.2.13:ANTIROLL BARS
They must respect the following :
Not more than the number installed by the manufacturer.
Their operating principle must be solely mechanical
The antiroll bars and their links must be made from metallic
material and must not be adjustable from the cockpit
3.2.14:STRUT BRACE
Addition of a two/three point strut brace is authorised.
Lower suspension braces are authorised . The pick up points should be
within 50mm of the actual suspension attachment to the chassis.
3.2.15:STEERING
The OE steering system to be maintained. Any steering wheel may be used.
An alternate steering wheel assembly, including all mounting hardware,
which replaces an airbag-equipped wheel can be used
3.2.16:SAFETY CAGE
It is recommended that a safety cage be installed.
3.2.17:RIM
Material and diameter Free.
Wheel spacers are not permitted.
3.2.18:TYRE
Free but respecting the following, Retreaded tyres or modified custom re
grooved tyres are prohibited. Tyres should not be more than five years old
and suggested that they all be of the same year of manufacture.
Tyres manufactured specifically for agricultural use or marked for use at
limited speeds are prohibited. Preheating of tyres by electrically heated
covers or similar is prohibited.
3.2.19:BRAKES
Free but must be single master cylinder with dual circuit.
Brake discs must be made from iron‐based alloy. A hydraulic handbrake
system is not authorised. Original equipment ABS braking systems may be
electrically disabled but may not be removed or altered in any other way.
3.2.20:MUD FLAPS
The fitting of mud flaps is compulsory. They must be made of a flexible
plastic / rubber material at least 4mm thick. They must cover at least the
width of each wheel.
3.2.21:BUMPER
Front and rear bumper may be modified but not be removed. Should cover
more than 75% of area covered by OE bumper.
3.2.22:SEATS
The co driver as well as the rear seat may be removed.
3.2.23:TRIMS
Interior trims may be removed.
3.2.24:DASHBOARD
The OE dashboard has to be retained.
3.2.25:DOOR
Except for the driver’s door, the material is free, provided that the
original outside shape and rigidity is retained. It must be possible to open
the front doors from the outside and from the inside.
3.2.26:BONNET
Material : Composite authorised but should maintain basic structural
rigidity. Outer surface basic shape unchanged from the original car.
Openings may be made up to a maximum total surface of 1050 cm2,
including any original opening. At least two safety fasteners must be fitted.
Minimum number of fixing points to the bodyshell = 4.
The original locking mechanisms must be rendered inoperative or
removed. Opening from the outside must be possible (without tools).
3.2.27:BOOT LID
Material : Composite authorised.
Original outer surface shape and basic structural rigidity maintained .
Inner surface free.
At least two safety fasteners must be fitted.
Minimum number of fixing points to the bodyshell = 4.
The original locking mechanisms must be rendered inoperative or
removed.
Opening from the outside must be possible (without tools).
3.2.28:SIDE WINDOW
Glass may be replaced with polycarbonate ensuring the
same transparency as the original glass (minimum thickness
4.5 mm).
A sliding window in the side windows of the driver’s and co‐driver’s
doors must be fitted. The opening must be a minimum of 130 mm x
130 mm and a maximum of 150 mm x 150 mm.
The sliding windows must be closed at the start of the race
3.2.29:CABIN COOLING
It is allowed to instal roof or side vents to cool the driver cabin.
3.2.30:WINDSHIELD
It is mandatory to retain OE windshield.
3.2.31:WIPERS
It is mandatory to have a fully functional OE windscreen wiper system.
3.2.32:FIRE EXTINGUISHER
It is mandatory for all cars in this group to have a 2kg dry powder
extinguisher installed inside the vehicle adequately fastened with a quick
release type bracket.
3.2.33:TOWING DEVICE
One front and one rear towing device is compulsory, the same may be a strap
type arrangement.
They must be clearly visible and marked in yellow, red or orange.
3.2.34:MINIMUM WEIGHT ( TO BE APPLICABLE FROM 2018 )
The weight of the vehicle, without the driver on board and with the
fluids remaining at the moment at which the measurement is
taken, must at all times during the competition comply with the
following computation: i.e: The cubic capacity of the engine divided by a
constant of 1.7. ( Example a 1600cc car must weigh 1600/1.7=941.1 kg)
It is permitted to conform to the specified weight by adding well anchored
ballast. The weighing scale used by the technical delegate/Scrutineer will be
the official measuring scale and its reports will be considered as final without
prejudice
Art.4
GROUP | UNRESTRICTED OPEN
Vehicles conforming to modification listed below will be eligible to
participate only in unrestricted Open Class.
4.1:ENGINE – General
The engine is free.
The cylinder head and engine block may come from different cars.
Engine speed is free.
4.1.1:ENGINE BLOCK
It is possible :
To begin from the raw series components
To modify the material of the raw components using the series
tooling, the cores are free to machine at will, as long as their origin can be
proved. To rebore, sleeve and re sleeve, but the sleeves must have a circular
internal section, must be concentric with the cylinders, must be dry or wet
and must be distinct from one another.
4.1.2:CYLINDER HEAD
Free. The cylinder head may be a bespoke part.
4.1.3:CAMSHAFT & CRANKSHAFT
Free.
4.1.4:TAPPET/ ROCKER / CAM FOLLOWER :
The diameter of the tappets and the shape of the tappets and
rocker arms are free.
4.1.5:VALVES
Free.
4.1.6:WATER PUMP
Free.
4.1.7:OIL PUMP
Free.
Lubrication by dry sump is allowed. In this case, the new oil pump must be
external to the engine block. It is possible to improve the oil circulation
internally as well as between the cylinder head and the oil sump by means
of lines internal/external to the engine.
4.1.8:FLYWHEEL
Free.
4.1.9:ENGINE MOUNTING
Free.
4.1.10:IGNITION SYSTEM
Only one spark plug per cylinder with a thread outer diameter of
≥ M10 is permitted. Ignition is only permitted by means of not more than a
single ignition coil per cylinder.
4.1.11:INJECTION SYSTEM
The injection system is of free design. A combination of direct
injection and port injection systems is allowed.
Internal and/or external spraying or injection of water or any substance
whatsoever is forbidden (other than fuel for the normal purpose of
combustion in the engine).
The body of the injector must come from a Manufacturer’s commercial
catalogue. Only solenoid injectors are allowed.
4.1.12:INTAKE MANIFOLD.
Custom made intake manifolds are allowed.
The use of composite material (including carbon fibre) is authorised
with the exception of the throttle unit body.
Intake manifolds with variable geometry are prohibited.
The intake manifold must be fitted with :
Either multiple valve throttle unit mechanically controlled
Or single‐valve single throttle unit which may be mechanically or
electrically controlled. If it is electrically controlled, the throttle
unit must come from a commercial catalogue.
All air entering the engine must imperatively pass through the
throttle opening or the opening of the air injection system.
4.1.13:TURBO CHARGER
In case of after market turbocharging in group Unrestricted Open,
The turbocharger must be single turbocharger, with single stage
compression and expansion, and must not have variable pitch or
variable geometry.
4.1.14:WASTE GATE
In case of after market turbocharging in group Unrestricted Open,
Free but Electromagnetic or hydraulic actuation is forbidden.
4.1.15:INTERCOOLER
The intercooler must be of the air/air type.
The intercooler is free but with the following limitations :
It must be mounted in the engine compartment
The intercooler core must have a maximum of six flat faces.
4.1.16:ELECTRICAL SYSTEM
The make, model number, and size of the battery may be changed but not
its voltage. Relocation of the battery is permitted but not into
the passenger compartment.
The addition of electrical grounding cables and associated distribution
blocks/terminals is permitted.
4.1.17:SIDE WINDOW
Glass may be replaced with polycarbonate ensuring the
same transparency as the original glass (minimum thickness
4.5 mm).
A sliding window in the side windows of the driver’s and co‐driver’s
doors must be fitted. The opening must be a minimum of 130 mm x
130 mm and a maximum of 150 mm x 150 mm.
The sliding windows must be closed at the start of the race
4.1.18:FUEL PUMP
Come from a commercial catalogue.
Inside the fuel tank, or Outside the fuel tank, protected by a leak‐proof and
flameproof cover.
4.1.19:FUEL TANK
From any OE parts catalogue of an automobile manufacturer or a specialist
fuel tank manufacturer
Maximum capacity of the fuel tank : free.
The floor of the cockpit may be modified in order to install the
fuel tank in the rear seats area; the maximum dimensions of the
resulting hole in the floor are 500 x 500 mm
The bottom of the tank must be minimum 50 mm higher from the
lowest point of the chassis
A 1 mm thick metal screen between the tank and the cockpit is
compulsory.
A liquid‐proof shield between the tank and the occupants is
mandatory.
4.1.20:COOLING SYSTEM
Radiator core dimensions are free but they (width, height, thickness/total
surface area) cannot be smaller than the standard part.
Radiator cooling fan is free.
The thermostat is free, as is the control system and the temperature at which
the fan cuts in.The radiator cap and its locking system are free.
The liquid cooling lines external to the engine block and their
accessories are free. Lines of a different material and/or diameter may be
used.
The fitting of extra cooling fans is permitted. A duct may be fitted between
the radiator core and the cooling fan.Any spraying system on to the engine
water radiator is prohibited.
4.1.21:EXHAUST
The exhaust manifold from its attachment at the cylinder head is free.
All vehicles must be equipped with a muffler/spark arrestor, the position of
which is free. The exhaust gases must, at all times, pass through this device.
The exit of the exhaust pipe must be situated at the rear/side of the car,
within the perimeter of the car, and be less than 10 cm from this
perimeter. The exhaust exit must be horizontal.
Exhaust system heat shielding is allowed either directly on the
exhaust and/or on components in close proximity to the exhaust
for the sole purpose of preventing excessive heat build‐up.
4.1.22:SOUND
A limit of 103 dB/A is imposed for all cars.
The noise must be measured using a sonometer regulated at "A" and
"SLOW", placed at an angle of 45° to and a distance of 1 meter
from the exhaust outlet, with the car's engine running at 4500 rpm.
4.1.23:TRANSMISSION SYSTEM
Free
Front and rear mechanical limited slip differentials are authorised.
If a series production housing is used, the original series production
material is allowed. In case of group Unrestricted open using custom
transmission the gearbox housing must be made from aluminium alloy.
4.1.24:CLUTCH
Free, but must be operated by the driver’s foot.
4.1.25:OIL COOLING
Oil radiators are allowed. The oil radiators and their connections are free,
provided that they do not give rise to any modifications to the bodywork and
are situated within the perimeter of the bodywork.
4.1.26:TRANSMISSION SHAFT
Free design.
A minimum of two steel safety loops must be fitted to each
longitudinal shaft, to prevent it from hitting the ground in case of
breakage. They must be fitted so that they are positioned one on
either side of the midpoint of the propeller shaft.
For propeller shafts of less than 500 mm total length, only one
safety loop is mandatory.
Should any tank be close to a longitudinal shaft, it is recommended
that the tank has extra protection in the walls close to the shaft.
4.1.27:SUSPENSION
Cars must be fitted with a sprung suspension.
The use of active suspension is forbidden.
Coil/leaf springs are compulsory. They must be made from metallic material.
Solid rear axle vehicles may add traction bars or torque arms .
Camber kits (also known as camber compensators) may be installed but
only the lower arm can be modified.
Adjustable camber plates may be installed at the top of the strut and the
original upper mounting holes may be slotted.
Any type of bearing or bushing may be used in the adjustable camber plate
attachment to the strut.
4.1.28:SHOCK ABSORBER
Twin shock absorber per wheel is authorised.
All shock absorbers must be independent of each other
Once the springs are removed, the vehicle must sink down to the
bump stops in less than 5 minutes. With regard to their principle of
operation, gas‐filled shock
absorbers are considered as hydraulic shock absorbers.
A suspension travel limiter may be added.
Only one cable per wheel is allowed, and its sole function must be
to limit the travel of the wheel when the shock absorber is not
compressed.
Changes to the spring and shock absorber settings from the cockpit
are prohibited.
4.1.29:ANTIROLL BARS
They must respect the following :
Their operating principle must be solely mechanical
The antiroll bars and their links must be made from metallic
material and must not be adjustable from the cockpit
4.1.30:STRUT BRACE
Addition of a two/three point strut brace is authorised.
Lower suspension braces are authorised . The pick up points should be
within 50mm of the actual suspension attachment to the chassis.
4.1.31:RIM
Material and diameter Free. Wheel spacers are permitted.
4.1.32:TYRE
Free.
Retreaded tyres or modified custom re grooved prohibited.
Tyres should not be more than five years old and suggested that they all be
of the same year of manufacture. Tyres manufactured specifically for
agricultural use or marked for use at limited speeds are prohibited.
Preheating of tyres by electrically heated covers or similar is prohibited.
4.1.33:BRAKES
Free but must be single master cylinder with dual circuit.
Brake discs must be made from iron‐based alloy
A hydraulic handbrake system is authorised
Original equipment ABS braking systems may be electrically disabled but
may not be removed or altered in any other way.
Incase of unrestricted open group air ducts may be fitted to the brakes
provided that they extend in a forward direction only. They may serve no
other purpose.
4.1.34:STEERING
The steering system and its position are free, but only a direct
mechanical linkage between the steering wheel and the steered
wheels is permitted.
Four‐wheel steering system is forbidden.
Any steering wheel may be used. An alternate steering wheel assembly,
including all mounting hardware, which replaces an airbag-equipped wheel
can be used
4.1.35:DASHBOARD
The material and shape of the dashboard is free, can be custom made but
cannot be absent.
The dashboard / and or the area around it must have no sharp protruding
edges.
4.1.36:COOLING OF CABIN
The heating/Cooling system may be removed.
It is permitted to install one or two roof vent(s) on the roof of the car.
4.1.37:WINDSCREEN
The windscreen must be of laminated glass or of polycarbonate ensuring the
same transparency as the original glass
If of polycarbonate , the thickness must not be less than 5 mm.
Windscreens which are damaged to such an extent that visibility is
seriously impaired or that there is a likelihood of their breaking
further during the competition will be rejected.
The addition of a protective transparent film on its external face is permitted.
4.1.38:SIDE WINDOW
Glass may be replaced with polycarbonate ensuring the
same transparency as the original glass (minimum thickness
4.5 mm).
A sliding window in the side windows of the driver’s and co‐driver’s
doors must be fitted. The opening must be a minimum of 130 mm x
130 mm and a maximum of 150 mm x 150 mm.
The sliding windows must be closed at the start of the race.
4.1.39:WINDSCREEN / WIPERS
Windscreen wipers are free, but they must be in working order.
The fitting of an additional windscreen washer tank or of one with a
greater capacity is authorised. This tank must be strictly reserved
for the cleaning of the windscreen.
4.1.40:BONNET
Material : Composite authorised.
Outer surface basic shape and rigidity unchanged from the original car.
Openings may be made up to a maximum total surface of 1050 cm2,
including any original opening
At least two safety fasteners must be fitted.
Minimum number of fixing points to the bodyshell = 4.
The original locking mechanisms must be rendered inoperative or
removed.
Opening from the outside must be possible (without tools).
4.1.41:BOOT LID
Material : Composite authorised.
Outer surface shape and rigidity unchanged from the original car.
Inner surface free.
At least two safety fasteners must be fitted.
Minimum number of fixing points to the bodyshell = 4.
The original locking mechanisms must be rendered inoperative or
removed.
Opening from the outside must be possible (without tools).
4.1.42:FENDER
The material and shape of the fenders are free, provided that
they do not give rise to any additional aerodynamic effect.
However, the material must have a minimum thickness of
1.5 mm . Material : Composite authorised.
Flares may be added although tires may extend beyond the bodywork.
fenders must be continuous.
Fenders and bumpers may be modified for tire clearance.
4.1.43:MUD FLAPS
The fitting of mud flaps is compulsory.
They must be made of a flexible plastic material at least 4mm
thick. They must cover at least the width of each wheel.
4.1.44:DOOR
Except for the driver’s door, the material is free, provided that the
original outer shape is retained. It must be possible to open the front doors
from the outside and from the inside. In case the vehicle has a ASN approved
roll cage installed with side protection the driver side door may be
constructed with composite material.
4.1.45:FRONT BUMPER
Material : Composite authorised.
The thickness of the front bumper must be 3 mm minimum.These
construction must be such that the structural integrity of the bumper
remains. Should cover at least 75% of the area covered by the OE bumper.
4.1.46:REAR BUMPER
Material : Composite authorised.
The shape of the series model must be preserved, but in order to
connect it with the free parts, a local tolerance of +/‐ 5 mm in
relation to the original surface is accepted.
The thickness of the rear bumper must be 3.0 mm minimum.
It is possible to enlarge the original cut‐out in the rear bumper for the
exhaust or to create one or more new cut‐outs, solely in order to allow
the exhaust to exit.
4.1.47:BULKHEAD, ENGINE COMPARTMENT
The bulkhead separating the cockpit from the engine compartment
must retain its original place within a tolerance of ± 100 mm in X
direction.
The shape is free.
The bulkhead material must be the same or stronger than the
material of the homologated car. In any case, the materials added
must be iron‐based alloys and must be welded to the bodywork.
4.1.48:UNDERBODY PROTECTION
The fitting of underbody protections is authorised provided that
these really are protections which respect the ground clearance,
which are removable and which are designed exclusively and
specifically in order to protect the following parts : Engine, radiator,
suspension, gearbox, tank, transmission, exhaust, extinguisher
bottles.These protections must be made from either aluminium alloy or
steel, or composite material.
Minimum thickness for aluminium alloy and composite material is
4 mm and 2 mm for steel.
4.1.49:DRIVER SEAT / POSITION
The driver and front passenger seats may be replaced with the following
restrictions. The seating surface must be fully upholstered. The top
of the seat, or an attached headrest, may not be below the centre of the
driver’s head. The seat must be attached using the OE body mounting holes/
studs. Additional mounting points may be added.
Longitudinally :
The front seats may be moved backwards but not beyond the
vertical plane defined by the front edge of the original rear seat.
Transversally :
Seat centreline must not be less than 250 mm from the car’s centreline.
Incase of unrestricted open group, cars must run with a rally seat.
4.1.50:SAFETY HARNESS
The original seat belts must be replaced by a four point safety harness
homologated according to FIA 8853/98 standard. It must have a minimum
of six (6) anchorage points conforming to the specifications of Article 253‐6
of Appendix J. The two shoulder straps must have separate anchorage points.
4.1.51:FIRE EXTINGUISHER / SYSTEMS
It is compulsory to have a 2KG dry powder type fire extinguisher installed
inside the vehicle with a quick release type bracket.
4.1.52:TOWING DEVICE
One front and one rear towing device is compulsory. They must be clearly
visible and marked in yellow, red or orange
4.1.53:REAR LAMPS
Each car must be fitted with a minimum of two red rear lights
4.1.54:HEAD LAMPS
FREE, and may be removed.
4.1.55:MINIMUM WEIGHT ( APPLICABLE FROM 2018 )
The weight of the vehicle, without the driver on board and with the
fluids remaining at the moment at which the measurement is taken, must at
all times during the competition comply with the following computation: i.e:
The cubic capacity of the engine divided by a constant of 1.8 ( Example a
1600cc car must weigh 1600/1.8=888.8 kg) . It is permitted to conform to
the specified weight by adding well anchored ballast. The weighing scale
used by the technical delegate/Scrutineer will be the official measuring
scale and its reports will be considered as final without prejudice.
Art 5
PURPOSE BUILT RACE BUGGY / SPACE FRAME VEHICLES
5.1:DEFINITION
Cars must be rigidly-closed steel tube constructed models with custom built
suspension and body panels. 4-wheeled vehicles designed and built
specifically for participating in motorsport.
The vehicles must have 2- or 4-wheel drive.
5.1.1:ENGINE & TRANSMISSION
All modifications permitted as per unrestricted open
5.1.2:ENGINE PROTECTION
A protective hoop is obligatory for rear-engines.
The rear part of this hoop must entirely envelop the engine
including the exhaust and its outlet.
This hoop must be braced in its centre.
This may be connected to the underneath of the vehicle or to the
main roll bar. The tubes used must have a minimum wall thickness
of 1.5 mm.
The protective hoop for the engine may be in several detachable
parts, but in this case the joined tubes must be sleeved and the
assembly effected by a bolt on each end of the sleeve, positioned at
90° to one another, separated by at least 30 mm.
The diameter of the bolts to be used is at least 6 mm.
5.1.3:BODYWORK
This must be impeccably finished, in no way of a makeshift nature.
It must not have any sharp angles or sharp-edged or pointed parts,
and angles or corners must be rounded with a radius of not less
than 15 mm.
At the front and at the sides there must be hard, opaque bodywork
providing protection against stones.
At the front, this bodywork must rise at least to the level of the
centre of the steering wheel,
All mechanical elements necessary for propulsion (engine,
transmission) must be covered by the bodywork or fenders.
5.1.4:COCKPIT
No part of the cockpit, or situated in the cockpit, may have sharp or
pointed parts.
Particular care must be taken to avoid any protrusion which could
injure the driver.
The two safety rollbars must be high enough for a line extended
from the top of the main rollbar to the top of the front rollbar to
pass at least 5 cm over the top of the driver's helmet when he is
seated normally in the car with his helmet on and his safety harness
fastened.
A rigid roof panel above the driver is mandatory.
The roof panel must be made either from a steel sheet, minimum
thickness 1.5 mm, or from aluminium alloy or composite material,
minimum thickness 3.0 mm.
It is obligatory that lateral protection be provided as follows for the
two side openings of the cockpit
These openings must be closed completely to prevent the passage
of a hand or arm.
This closing must be effected :
Either by netting with a mesh of 6 cm x 6 cm made from cords of
at least 3 mm in diameter, or with a mesh of between 10 mm x
10 mm and 25 mm x 25 mm, the minimum diameter of the cord
of which the mesh is formed being 1 mm
This netting must be fixed permanently at the top and rapidly
detachable at the bottom from inside or outside or by side windows made
from polycarbonate, of a minimum thickness of 5 mm.
5.1.5:MINIMUM WEIGHT
The weight of the vehicle, without the driver on board and with the
fluids remaining at the moment at which the measurement is
taken, must at all times during the competition comply with the
following computation: i.e: The cubic capacity of the engine divided by a
constant of 2.2. ( Example a 1600cc car must weigh 1600/2.2=727 kg)
It is permitted to conform to the specified weight by adding well anchored
ballast. The weighing scale used by the technical delegate/Scrutineer will be
the official measuring scale and its reports will be considered as final without
prejudice.
5.1.6:FIRE PROOF BULKHEAD
A metallic fire-proof, flame-proof and liquid-tight bulkhead must be
fixed to the floor of the car and to the two rear uprights of the
rollover structure. It must extend over the whole width of the
rollbar; its upper edge must be at least 50 cm from the floor.
The floor must be closed.
5.1.7:FENDERS
They must be firmly fixed.
The fenders must project over the wheels, and provide efficient
covering of at least one third of their circumference and at least the
entire width of the tyre, and descend towards the rear to at least
5 cm below the axis of the wheels
Fenders must have no perforations or sharp angles.
Should it be necessary to reinforce the fenders, this may be done
with iron rod of 10 mm maximum diameter, or with tubing with a maximum
diameter of 20 mm.Under no circumstances may the fender reinforcement
be used as a pretext for the construction of crash bars.
5.1.8:SUSPENSION
The use of active suspension is forbidden.
The axles must be sprung.
The mounting of axles directly onto the chassis is not allowed.
5.1.9:FUEL/OIL/COOLING LIQUID TANKS
They must be isolated from the driving compartment by means of
bulkheads so that in the case of spillage, leakage or failure of a
tank, no liquid may pass into the driving compartment. The same
applies to the fuel tanks vis-à-vis the engine compartment and
exhaust system.
The fuel tank must be an OE tank.
It must be mounted in a sufficiently protected location and be
firmly attached to the car.
It must not be in the driver's compartment, and must be separated
from it by a fire-wall. The filler caps of this fuel tank must be leak proof and
must not protrude beyond the bodywork.
5.1.10:FUEL LINES & PUMPS
Fuel lines, oil lines and brake lines must be protected externally
against any risk of deterioration (stones, corrosion, mechanical
breakages, etc.), and inside the cockpit, as far as the fuel circuit is
concerned, against all risks of fire.
There must be no connections on the lines situated in the cockpit.
5.1.11:WHEELS & TYRES
The maximum diameter permitted for wheels is 18 inches.
Tyres manufactured specifically for agricultural use or marked for
use at limited speeds are prohibited.
Tyres should not be more than five years old and suggested that they all be
of the same year of manufacture.
Home-made constructions are prohibited.
5.1.12WINDSCREEN
Must be of laminated glass or of a polycarbonate, and the windows
must be of safety glass or plastic.
If of plastic, the thickness must not be less than 5 mm.
Cars with laminated windscreens which are damaged to such an
extent that visibility is seriously impaired or that there is a
likelihood of their breaking further during the competition, will be
rejected.
The windscreen may be replaced, or protected, by a metal grille
covering the entire surface of the windscreen opening. The mesh
size must be between 10 mm x 10 mm and 25 mm x 25 mm, and
the minimum diameter of the wire of which the mesh is formed
must be 1 mm.
In the event of absence of a windscreen, the wearing of a full face
helmet with a visor is compulsory, otherwise the vehicle shall not
be admitted to the start.
In cars which have a laminated glass windscreen or which have the
metal grille defined above and no polycarbonate windscreen,
motorcycle type goggles or a visor fitted on the helmet must be
worn by the driver
5.1.13:SAFETY CAGE
Must comply with specifications laid down by the FMSCI.
Nevertheless, for cars built before 01.01.1995, in accordance with
Articles 253-8.1, 8.2, 8.3, the minimum dimensions of the tubes
making up the cage are 38 x 2.5 mm or 40 x 2 mm.
5.1.14:STEERING
The steering system and its position are free, but only a direct
mechanical linkage between the steering wheel and the steered
wheels is permitted. Four‐wheel steering system is forbidden.
Any steering wheel may be used. An alternate steering wheel assembly,
including all mounting hardware, which replaces an airbag-equipped wheel
can be used
5.1.15:DASHBOARD
The material and shape of the dashboard is free, can be custom made but
cannot be absent. The dashboard / and or the area around it must have no
sharp protruding edges.
5.1.16:MUDFLAPS
It is obligatory to fix mudflaps behind the driven wheels, made of a
flexible material and with a minimum thickness of 5 mm.
The mudflaps must be situated no more than 10 cm above the
ground and cover at least the whole width of the complete wheel
and must not exceed this width by more than 5 cm.
With the exception of a transverse mudflap in front of the rear
wheels, to protect the engine, any other system of mudflaps or
protection under the car is forbidden.
5.1.17:DRIVER SEAT
The seat supports must be fixed on anchorage points for fixing
seats , but instead of bolting the cross members to the chassis, the cross
members must be welded to the buggy’s main structure, cross-wise or
length-wise.
The seat supports may also be welded to the buggy’s main structure.
The seat supports must be fixed to the anchorage points for fixing
seats via at least 4 mounting points per seat, using bolts measuring
at least 8mm in diameter. The driver seat may be tilt by a maximum of 15°
backwards to the vertical.
5.1.18:SAFETY HARNESS
The vehicle must have installed a four point safety harness
homologated according to FIA 8853/98 standard. It must have a
minimum of six (6) anchorage points conforming to the specifications of
Article 253‐6 of Appendix J. The two shoulder straps must have separate
anchorage points.
5.1.19:FIRE EXTINGUISHER / SYSTEMS
It is compulsory to have a 2KG dry powder type fire extinguisher installed
inside the vehicle with a quick release type bracket.
5.1.20:UNDERBODY PROTECTION
The fitting of underbody protections is authorised provided that
these really are protections which respect the ground clearance,
which are removable and which are designed exclusively and
specifically in order to protect the following parts : Engine, radiator,
suspension, gearbox, tank, transmission, exhaust, extinguisher
bottles. These protections must be made from either aluminium alloy or
steel, or composite material.
Minimum thickness for aluminium alloy and composite material is
4 mm and 2 mm for steel.
5.1.21:TOWING DEVICE
One front and one rear towing device is compulsory.
They must be clearly visible and marked in yellow, red or orange
5.1.22:REAR LAMPS
Each car must be fitted with a minimum of two red rear lights
5.1.23:HEAD LAMPS
FREE, and may be removed.