Title X
Two-Seater Racing Cars
Article 284.--Definition:
Two-seater competition vehicles built
exclusively for speed races on closed circuits.
Article 285.--Classification of cars
shall be according to engine displacement as follows:
| 1st series: |
inferior or equal to 850 cc |
| 2nd series: |
from 850 cc to 1,150 cc |
| 3rd series: |
from 1,150 cc to 1,600 cc |
| 4th series: |
from 1,600 cc to 2,000 cc |
| 5th series: |
from 2,000 cc to 3,000 cc |
| 6th series: |
from 3,000 cc to 5,000 cc |
| 7th series: |
over 5,000 cc |
Article 286.--Fuel:
Only commercial fuel such as defined by the FIA
shall be used (see definition hereafter).
Article 287.--Self Starter:
The starting of the engine must be done by the
driver seated at his wheel by means of a starter with a source
of energy aboard the car.
Article 288.--Brakes:
These cars shall be equipped with a dual
braking system operated by a single-control. In case of a
leak or failure at any point in the system, effective braking
power shall be maintained on at least two wheels.
A separate hand brake (emergency brake) is
not required.
Article 289.--Coachwork:
Coachwork shall provide comfort and safety
for driver and a passenger. All elements of the
coachwork shall be completely and neatly designed and finished,
with no temporary or makeshift elements. The body shall
cover all mechanical components, except that the intake and
exhaust pipes may protrude.
All major body components such as the front
and rear bonnet and/or hood, mudguards, doors and windscreen
must be maintained in normal position throughout the event.
a) Cockpits and Seats: there
shall be seats for the driver and a passenger of equal dimension
and comfort, and equally disposed on each side of the
longitudinal axis of the car. Seats shall be firmly
attached in the car, but may provide for adjustment for the size
of the occupant.
The passenger's space and seat shall remain
available throughout the competition and shall not be encroached
upon by any element of the car or equipment except as provided
in these rules.
The passenger's compartment and seat shall
not be sheltered by means of a tonneau cover of any type.
Driver and passenger space shall satisfy the
following minimum dimensions:
-- the inside minimum width of the
compartment shall be 100 cm measured at the immediate rear
of the steering wheel hub and at right angles to the
longitudinal axis of the car, and must be unobstructed and
maintained at least 25 cm in a vertical plane.
Seats must fulfill the following minimum
dimensions:

a is always measured horizontally
and parallel to the longitudinal axis of the chassis, between
two vertical planes perpendicular to the longitudinal axis and
defining from front to rear the open space on a level where such
measurement is taken.
For the driver's seat, a is measured
on the floor level, or at the bottom of any recess if need be,
from the perpendicular of the furthest pedal in its position of
rest.
For the passenger seat, this measurement is
taken at a height of 20 cm above the floor, or at the bottom of
the recesses, if need be.
In case of movable seats it is forbidden to
alter the position of any seat while the car is being measured.
b is measured vertically from the
rear of a to the horizontal plane tangent to the
highest part of the cushion as shown on the drawings.
c is measured, in the horizontal
plane defined above from the upper end of b, parallel
to a, and tangent to the foremost point of back of
seats.
The arrangement of body must be such that:
a + b + c
= 110 cm minimum
The minimum width for the foot space for each
person must be 25 cm measured at right angles to the
longitudinal axis of the chassis.
Windshield wipers are not required.
b) Visibility: Coachwork
shall provide visibility for driver and passenger forward and to
both sides adequate for racing conditions. Rear view
mirror(s) shall provide driver visibility to the rear of both
sides of the car.
c) Doors: Coachwork shall
provide at least two rigid doors, thereby giving direct access
to each of the seats. Each door shall accept a rectangle
held in a vertical plane of at least 30 cm x 50 cm.
These dimensions shall not include any area
above the horizontal plane of the body and door panels.
The door openings may not be obstructed in any way.
The locking mechanism shall be operable both inside and outside
the car.
On closed cars, the doors shall be so
designed that in case the car is partially or completely
overturned at least one of the doors shall remain in a position
to be opened, or a means of escape other than the door must be
provided.
d) Mudguards: mudguards
shall be firmly attached to the coachwork with no gap between
body and mudguards. They shall be placed above the tyres
and shall cover them effectively by surrounding at least a third
of their circumference. The width of each mudguard shall
extend beyond the side of the tyres when the wheels are parallel
to the longitudinal axis of the car.
In case the mudguards constitute a part of
the body, or are partly overhung by the structure of the body,
the combination of mudguards and body, or the body alone, shall
meet the above requirements.
Article 290.--Lighting:
The minimum lighting equipment shall be:
a) at least two brake lights;
b) for night racing, two head-lights at least as effective
as those normally fitted on touring cars and two directional
indicators mounted at the rear.
The supplementary regulations of an event may
require additional lighting equipment.
Article 291.--Wheels and tyres:
There shall be no restriction on the size of
wheels or tyres, provided they are identical for the right and
left front axles, and identical for the right and left rear
axles.
A spare wheel and tyre are not required.
Article 292.--Safety Equipment:
a) Fire extinguisher: all
cars shall carry during competition a dry chemical fire
extinguisher of at least 1 kg capacity. It must be
securely mounted and may be located in the space provided for
the a passenger.
b) Scatter Shields: the
installation of a scatter shield is required on those cars where
the failure of the clutch or flywheel could, due to its
location, create a hazard to the driver. In addition, any
rotating part of the drive train shall not pass openly through
the driver and passenger compartment, but must be under the
floor or chassis structure.
c) Roll bars: cars shall be
equipped with a roll bar or structure to protect the driver in
case the car overturns. It shall be firmly attached to the
chassis structure and designed to withstand compression forces
from the weight of the car as well as fore-and-aft loads from
horizontal forces.
d) Safety belts: the car
shall be provided with a safety belt of a quick release type
attacked to the chassis structure and designed to restrain the
driver in his seat.
e) Exhaust system: the
exhaust system shall terminate behind the driver and passenger
seats.
f) Firewall and floor: cars
shall have an adequate firewall to prevent the passage of flame
from the engine compartment or under the car to the cockpit.
Openings in the firewall for the passage of engine controls,
wires, and lines shall be of the minimum size necessary.
The floor of the cockpit shall be constructed
to protect the driver by preventing the entry of gravel, oil,
water, and debris from the road and engine. Bottom
panels or belly panels shall be adequately vented to prevent the
accumulation of liquid.
g) Bulkheads and Tanks: no
part of any fuel, oil, or water tank shall be exposed to any
part of the driver and passenger compartment. Fuel tanks
shall be vented to prevent the accumulation of fumes and to
prevent fumes from passing into the driver or engine
compartment.
Fuel tanks shall be isolated by means of
bulkheads so that in case of spillage, leakage, or a failure of
the tank the fuel will not pass into the driver or engine
compartment of around any part of the exhaust system.
Batteries shall be fully enclosed.
h) Closed cars: adequate
ventilation shall be provided to prevent the accumulation of
fumes inside the car.