1. The regulations are in force from the 1st of
January 2002 until the 31st of December 2002, or
until their modification. All modifications that are not
specifically allowed in the Technical Regulations are
2. DEFINITION OF TERMS
ESTfield Street: A 1-2 seater open-topped street-legal
sports car which has been manufactured by VST or is home-built.
The car must have a national registration number and must fulfil
the requirements of the Estonian Traffic Regulations (LE) and
those of these technical regulations. Only rear wheel drive is
EAL- Estonian Motorsports Association
RK- EAL Circuit Commission
VST- AS Võidusõidutehnika (RaceTech Ltd).
NOT LIMITED - The relevant component may be modified or
replaced. There are no limitations regarding the material, shape
or quantity of the component. The component may be removed so
long as the safety requirements are not contravened.
PRODUCTION- the specified component as produced by the
manufacturer, without any mechanical, thermal, chemical or other
3. SAFETY REQUIREMENTS
3.1. In the points not elaborated in these technical
regulations, safety requirments must comply with art. 253 of the
3.2. Safety belts- production safety harnesses with at
least four anchorage points are compulsory
3.3. The driver must be able to release the safety
harness and exit the car within 5 seconds.
3.4. The driver's seat anchorages to the bodyshell must
comply with drawing 253-52 of the EAL Yearbook regulations
3.5. Safety cage - the car must have a safety cage and
longitudinal strut with VST serial number. The parts of the cage
in the immediate vicinity of the driver must be padded using at
least 8 mm thick soft material. A schematic of the safety cage
with dimensions is given in Fig. T1.
3.6. Fire extinguishing system- art. 253: there
must be a securely fastened fire extinguisher in the car with a
mass of at least 3 kg. The extinguisher type must be accepted by
the EAL technical commission. The use of CO is prohibited.
3.7. Cockpit heating system- not limited. If
the heating radiator is located in the cockpit then there must
be a metal or plastic shield between it and the driver to
protect the driver from hot fluid.
4.1. Chassis- manufactured by VST. No
modifications to the chassis are permitted except engine and
4.2. The car's silhouette and external
dimensions must not be modified, (Fig. K1).
4.3. Spoilers, air deflectors, side skirts,
under-car aerodynamic elements are prohibited. The floor
underneath the car should be smooth.
4.4. The passenger seat may be removed. The
passenger compartment may be covered with a soft, easily
removed, non-combustible material, as far as the middle of the
car. The cover must not interfere with the driver.
4.5. If the tyres on one side of the car are deflated
no point on the car except the tyre and wheel may come into
contact with the ground.
4.6. A sump-guard may be fitted under the
engine and gearbox. The sump-guard material is not limited, but
titanium is not permitted.
4.7. The clearance of the fully fuelled car
with driver must not be less than 75 mm.
4.8. Wings – manufactured by VST. Wings may
not be widened or modified in any way.
4.9. Engine cover (bonnet) – manufactured by
VST. Additional apertures may be made for cooling and to
accommodate air-filters. There must be no access to the moving
parts of the engine through the apertures. The bonnet must be
secured with fasteners that prevent it opening when the cat is
4.10. The dashboard. The instrument console and
switches must not injure the driver in the event of an accident.
4.11. Windscreen - the windscreen must be of
E-marked laminated (triplex type) glass. The windscreen must be
in the normal upright position. Polycabonate aeroscreens with a
min. corner radius of 25 mm are also permitted.
4.12. Rearview mirrors- with a minimum area of
55 cm2 must be fitted on both sides of the car. The
mirror surface must not be damaged.
4.13. External lights- correctly functioning
rear lights are compulsory. The lights must not be damaged or
tinted. All lights must be covered with adhesive transparent
film. Min bulb sizes: sidelights 10W, brake and fog lights 21W.
4.14. Towing eyes - easily accessible towing eyes must
be fitted to both the front and rear of the car. The eyes must
be brightly coloured and eye-catching. Viewed from above, the
towing eyes must not protrude beyond the external dimensions of
the car. The minimum diameter of the opening of the towing eye
is 50 mm.
5. WEIGHT OF THE CAR
5.1. The minimum weight of the car and driver is not
6.1. 4-stroke internal combustion engines are
6.2. Swept volume- up to 3500cc. Turbo coefficient is
6.3. Turbo- production engine models are permitted.
6.4. Compression ratio- not limited.
6.5. Induction system- not limited.
6.6. Petrol- not limited.
6.7. Air filter and filter casing - not
6.8. Petrol tank- manufactured by VST.
6.9. Petrol pumps- not limited, but must not be
located in the cockpit.
6.10. Petrol pipes- must not be located in the
cockpit and must be firmly secured to the bodywork. Screw
connectors must be fitted where pipes pass through the bodywork.
6.11. Inlet-manifold- not limited.
6.12. Exhaust system and silencer – on the
side of the car. The silencer must not protrude beyond the
outside dimensions of the car (see Fig. K1). Maximum noise level
is 100dB (A). Noise measurement is carried out according to the
FIA code, article 252 p.3.6. The silencer must be furnished with
a shield to protect against contact with the hot metal surface.
Variable exhaust systems are not permitted.
6.13. Engine block- production.
6.14. Cylinder head- production.
6.15. Cylinder head gasket- not limited.
6.16. Crankshaft- not limited.
6.17. Conrods- not limited
6.18. Pistons, rings, gudgeon pins- not
6.19. Camshaft and cambelt pulley wheel- not
6.20. Valves, valve train and valve springs -
6.21. Lubrication system- original. It is
permitted to weld baffles into the bottom of the sump. The sump
breather pipe must be directed into a transparent container of
at least 2l volume that has a vent opening. The breather pipe
fed into the container must be secured.
6.22. Ignition system- not limited.
6.23. Cooling system – not limited. The
pump must be production. The radiator is not
limited, as long as its location does not change. Covers and
deflectors may be used in front of the radiator. The bodywork
must not be modified.
6.24. Engine mounting- to the chassis with at
least three mounting points.
7. CLUTCH, GEARBOX, AND FINAL DRIVE
7.1. Flywheel- not limited.
7.2. Clutch plate- not limited.
7.3. Gearbox- production, mechanical.
7.4. Half-shaft– production.
8.1. Wishbones: manufactured by VST, with rubber or
8.2. Track rods and track rod ends are original parts,
make not restricted.
8.3. Shock absorbers- production, make not
restricted, non adjustable.
8.4. Shock absorber bushes- production, rubber.
8.5. Springs- coil springs adjustable for
8.6. Anti-roll bars- not limited, must not be
adjustable from the driver's seat.
8.8. Rear axle- rigid beam axle, production.
Attached to the car body via rubber or poly bushes.
9.1. The main and slave cylinders are production items
and their modification is prohibited.
9.2. Brake pads - not limited.
9.3. Securely fixed air deflectors for brake
cooling are permitted.
9.4. ABS is not permitted. The disconnection of
the brake servo is permitted but its complete removal is not
9.5. Brake hoses may be changed for other production
9.6. A handbrake is not compulsory but is recommended,
its construction is not limited.
9.7. Brake balance regulator- not limited, must not be
adjustable from the driver's seat.
10. STEERING MECHANISM
10.1. All components of the steering mechanism
are production items.
10.2. Steering rack - production.
10.3. Steering wheel- not limited.
10.4. Steering lock - not permitted.
10.5. Snap-off- production.
10.6. Power steering- not permitted.
10.7. Steering column - it is permitted to place
distance pieces between the column and body in order to regulate
steering wheel height.
11. WHEELS AND TYRES
11.1. It is permitted to use road tyres with a
speed index of at least T. It is forbidden to modify the tyre
tread pattern in any way. Min tread depth is 1.6 mm, which must
be maintained throughout the race.
11.2. The use of foams and other substances that enable a
car to be driven with a punctured tyre is prohibited.
11.3. Wheels- up to 16”, one piece,
production, not limited. It is permitted to use spacers between
the hub and wheel.
11.4. It is permissible to change the method of
fixing of wheels from bolts to studs and nuts provided the
number and diameter of fixings is retained.
11.5. The wheel must not extend beyond the
outer edge of the wing when viewed from above.
12. ELECTRICS not limited provided the following
requirements are met:
12.1. Generator- the generator field excitation may be
switched off. At any stage of the race it must be possible to
start the car from its own battery.
12.2. The wiring must be well insulated and properly
12.3. The car must have a main earth cut-off switch,
which disconnects the battery from the car’s electrical system
and stops the engine. The switch must be within the driver’s
reach in the normal driving position and must be operable from
outside the cockpit via a steel cable.
12.4. The main earth cut-off switch handle outside the
car must be labelled with a blue triangle with a side length of
at least 80 mm.
12.5. The main electrical circuits, except starter
motor (cockpit heater fan, radiator fan, fuel pump, windscreen
wipers) must be protected by fuses.
13. EXTERNAL APPEARANCE
13.1. The car must not have any noticeable defects (rust,
strongly deformed body panels and wings, cracked glass , etc.),
which may in any way effect the safety of the competitions or
may damage the reputation of the racing series.
13.2. A securely fastened spare wheel is permitted
13.3. A tow hook that extends beyond the external
dimensions of the car body is not permitted.
13.4. Body colour – no restrictions, except for the
requirements of the competition regulations.
13.5. Competition numbers – are compulsory for each
car, as are the advertising signs required in the competition
regulations, which are supplied by the organiser.
13.6. Number plates must be removed or covered during
training and competition.
14. CHANGES: The EAL RK may alter or modify these
technical regulations during the 2002. season with a 4 week
period of notice.
15.1. The transmission of any kind of information from the
car, except for two-way radio communication, is prohibited.
15.2. Information recording systems are not prohibited so
long as they do not include accelerometers.
16. DRIVERS’ EQUIPMENT
16.1. During all circuit races, FIA homologated (complying to
the FIA 1996 or later standard) fire-proof racing suits,
clothes, face masks, socks, driving shoes and gloves must be
16.2. The driver’s helmet must comply with one of the
following FIA approved standards:
SIS 88.24.11(2) – Sweden
DS 2124.1 – Denmark
SFS 2653 – Finland
ONS/OMK – Germany (black on white, black on blue, red on
white, blue on white marks)
Snell Foundation 1985 or 1990 (Special Applications) – USA
British Standards Institution BS 2495 with 1977 addendums or
BS 6658-85 type A-SBR NF S