1967

Touring cars built on series production terms.  These cars shall compete in event without having undergone any preparation likely ot improve their performance or their conditions of use.  The only working authorized is that which is necessary to keep the cars in working order, or to replace parts damaged through wear or accident.  The modifications and additions explicitly authorized are mentioned hereafter under article 257.  Except for what is explicitly authorized any part damaged through wear or accident may only be replaced by an original part which must be exactly the same as the one which it is substituted.

Article 256-Minimum production and number of seats:

Series-production touring cars shall have been manufactured at the rate of at least 5000 identical units within 12 consecutive months and offer at least 4 seats, except if their engine cylinder capacity is inferior to 700cc in which case the manufacturer may deliver them as two seaters.

Article 257-Mountings and Modifications authorized:

a) Lighting devices: all lighting and signalling devices must comply with the regulations of the country where the event is taking place.  Cars from other countries must be in this respect, in conformity with the Convention on International Road Traffic. The lighting devices included in normal quipment must be those originally installed by the manufacturer and must function as originally intended by the manufacturer for the particular model under consideration.  As an example, when he transition from "Hi-Beam" to "Lo-Beam" headlamps is obtained by two light sources (filaments) inside a common reflector, this basic system shall not be modified.

Complete freedom is premitted regarding the headlamp lens, the reflector, and the lamps (bulbs).

In order to comply with the motor vehicle regulations of certain countries, is permissible to utilize the existing front parking lamps and modify them to incorporate both parking and blinking turn signal functions.

It is permitted to add at the front only two extra lighting devices to those normally provided by the manufacturer and mentioned on the recognition form.

The mounting of reverse-lights is authorized provided police regulations are respected but not the fitting of manoevarable search-lights on the roof or elsewhere.

Waivers may be granted to this specification on condition that they be explicitly provided for in the supplementary regulations of the event.

The mounting of additional headlights shall not entail any modification of the coachwork.

b) Fuel and oil tanks: must be those normally provided by the manufacturer for the model concerned, the capacities of which are mentioned on the recognition form.   If, for the said model, tanks of different capacities are normally provided, only those mounted on the required number of cars necessary for recognition of the said model will be authorized.

The location and type of filling port for the fuel tank(s) may not be changed.

The use of a fuel tank with an increased capacity may be authorized by the ACN with the FIA's agreement, in the case of events organized under particular dlimatic conditions (on desert or tropical courses for instance).

c) Cooling circuit: if, for the said model, radiators of different capacities are normally provided, only those mounted on the required number of cars required for recognition of th said car, will be authorized.

The addition of a radiator screen is authorized.  The radiator mask or blind may consist of a rigid sheet affixed behind the radiator grill.

The use of a radiator with an increased capacity may be authorized by the ACN with the FIA's agreement, in the case of ebents organized under particular climatic conditions (on desertic or tropical courses for instance).  The make and model of thermostat are free; however, it must neither be removed or relocated.

d) Feeding: the carburetor(s) or fuel injection pump(s) normally mounted on the recognized model and described on the recognition form may not be changed or removed.

The elements which control the quantity of fuel injected into the engine may be changed, but not those which control the quantity of air.

e) Electrical equipment: the tension (voltage) of the electrical equipment may not be changed.

The make and capacity (amperage) of battery and generator are free.  The manufacturer may proide for one same minimum series the use either of a dynamo or of an alternator on condition that this is explicitly mentioned on the basic recognition form or on an alternate "variant" form.

The original battery may be replaced -- by the manufacturer or the entrant himself -- by another one of increaesd capacity provided however that the location remains unchanged.   By location of the battery is meant the coachwork compartment in which the battery is originally monted.

In the case of a 12 volt system, this voltage may be obtained either by one 12 or two series connected 6 volt units provided the original location is retained and no weight advantage has resulted from the modification as compared with the original manufacturer's installation.

Ignition coil, conderser, distributor and voltage regulator are free.

Spark plugs: make and type are free.

f) Transmission: for one same series of 5000 cars the following possibilities are given on the formal condition that they are those of the series-production and that they are normally sold to the purchaser and are entered on the recognition form.

The use of an automatic transmission is permitted provided this type of transmission is provided for by the manufacturer and listed on the recognition form.  No restriction exists regarding minimum production quantities of this device.

-- Gear-box: either two gear-boxes with the same number of ratios but different in their staging, or two gear-boxes with a different number of ratios and different in staging provided that at least 50% of the required minimum number of cars hae been equipped with either one of the two gear-boxes.  The fitting of n overdrive system in addition to the existing gear-box is authorized.

-- Final drive: two different ratios

Should the manufacturer have provided a greater number of gear-box ratios and/or rear axle ratios, he must, to obtain recognition, have to prove that he has achieved the required minimum production of the car as many times as he has submitted two different gear-boxes and two different rear-axle ratios.  An automatically controlled gear-box is not taken into consideration.  Recognition of it and of its particular rear-axle ratio will always be granted in addition to the two sets of manually controlled gear-boxes.

The gear-box lever will have to be located as provided by the manufacturer and mentioned on the recognition form.  Form and length are free.

The composition of the clutch lining is free provided the substitution meets the same dimensions as those of the lining originally installed with regard to friction surfaces.

g) Shock absorbers: the make and type are free.  However, no addition is allowerd, and neither their original destination nor their number, nor their system of operation may be modified.  By system of operation is meant: hydralic or friction shock absorbers of the telescopic lever type, wether the device has a double-acting or a simple-acting effect, and, in case of hydraulic shock absorbers, whether there is or not an additional gas chamber.  The original supports may not be changed in any way.

h) Tyres: the make and type are free on condition that the tyres concerned are forseen by the manufacturer to be fitted ont he original wheels without any modifications of the original rims and without need of an intermediary deice.  Any special or additional non-skid device for snow or ice may also be fitted.

i) Brakes: must be those provided by the manufacturer.  The replacement of worn linings is authorized and their system of attachment is free, provided the dimensions of inner friction surfaces remain unshanged, Servo-assistance is only permitted when duly recognized and at least 5000 identical cars having been made with this equipment.

The composition of brake lining is free provided the substitution meets the same dimensions as those of the lining originally installed with regard to the friction surfaces.

j) Supplementary accessories not included in the recognition: are authorized without restriction provided they have no influence whatsoever on the mechanical performance of the engine, such as those concerning the aesthetics or the inside comfort (lighting, heating, radio, etc. . .) or those enabling and easier or safer driving of the car (speed-pilot, windscreen wipers, etc. . .), provided they do not affect, even indirectly the mechanical performance of the engine, the steering, the transmission, the road holding and the braking.

The pedals must be those provided by the manufacturer (number, place, method of mouting), but it is allowerd to change pedal pads or to fit heavier or wider pads.

k) Coachwork:  noneof the ormal elements of the coachwork (dash-board, all inside quiltings whatever their location), none of the accessories normally mounted by the manufacturer on the most economical moel may be removed or replaced.

However, the modifications deriving from the mounting of the supplementary accessories authorized in the preceding paragraph, such as those necessitated by the adding of a windscreen, washer (drilling a hole into the bonnet) or of a speedometer (housing in the dashboard) , will be allowed.

On same minimum series may comprehend various materials for seats, upholstery and inside quilting (cloth, leather, plastics, etc) and two different types of front seats (bench type or separate seats).  These variants must be stated on the recognition form and in particular the different weights resulting from the mounting of different seats must be specified.

Transparent parts must, in case of damages, be replaced by others made of a material identical to the original one listed on the recognition form.  They shall be completely interchangable with those originally  mounted.  They must be mounted on the original suports and their original opening system must be maintained.

The original windshield may be replaced by one of the same material incorporating heating and defrosting elements.

Bumpers, embellishers, streamlining:  bumpers are compulsory on all cars for which the manufacturer has normally provided them.. Wheel embelishers may be remobed.  The addition of any  protective device underneath the car is forbidden unless such a device is mentioned on the recognition form of the model in question or is authorized or madecompulsory by the by the supplementary regulationsof the event.

 

Article 258-Definition:

Cars of limited series-production which may be submitted to certain modifications aiming at making them more adapted to competition.  The list of the modifications and additions explicitly authorized is given hereafter under article 260.

Moreover, in this group may be classed cars of Group 1 which have been subject to modifications and/or additions exceeding the limits of Group 1.  These cars will then enjoy the same freedom as provided for the present Group 2.

Article 259-Minimum production and number of seats:

Touring cars shall have been manufactured at the rate of at least 1000 units and be equipped with at least 4 seats; however, if their cylinder-capacity is equal or inferior to 700 cc, they may be delivered as two-seaters.

Article 260-Modifications and additions authorized:

All those already authorized in Group 1, plus the following ones:

a) Lighting devices:  the mounting of additional headlights is authorized proided that a total 6 headlights is not exceeded (parking lights not included).  Extra headlights may, if necessary, be fitted into the front part of the coachwork or into the grille, but such openings as those needed in this case musst be completely fitted by the additional headlights.

b) Electrical system:  the replacement of a dynamo by an alternator is authorized, provided the attachment system and driving method remain unchanged.

The installation of transistorized ignition systems is premitted provided it does not invole the modification of any mechanical part of the engine.

The relocation of the ignition coil is permitted if changing from a DC generator to an AC alternator necessitates this modification.

The voltage regulator and fuse panel may be relocated provided they remain within the same compartment in which they were originally installed.

c) Reboring:  maximum tolerance: 1.2mm, but the resulting increase in cylinder capacity may not be such as to make the car pass into the above class.   The reboring tolerance is valid for any type of engine (with or without sleeves).

d) Stabilizer:  the fitting of a stabilizer is authorized.

e) Fan: complete freedom.

f) Air filter:  may be changed or removed.

Dynamic air intakes may be installed on the carburators provided this installation does not involve any body modificatoins such as cutting of additional holes.

g) Fuel pump: a mechanically controlled pump may be replaced by an electrically controlled one, the location of which may be different.

The type of fuel pump is free and the installation of a pump of greater capacity is authorized.

The installation of an additional pump is likewise permitted provided this additional unit is not connected to the fuel line.

h) Oil filter and cooler:  an oil filter and/or oil cooler may be added when the model provided by the manufacturer has none, and the existing one may be altered.

i) Carburator(s):  the carburetor(s) provided by the manufacturer may be replaced by another (others) of a different diameter, provided:

--the number be the same as that provided by the manufacturer.

--they can be mounted on the inlet manifold of the engine with no need of any intermediary device and by using the original attatchment parts.

j) Springs: (valves, clutch, suspension, etc . . .) may be replaced by others of unrestricted origin, ut with no modification of the number provided by the manufacturer and on condition they can be fitted without alteration of the original supports.

k) Transmission:  may be used all gear-boxes, manual or automatic, and all final drive ratios provided and delivered by the manufacturer for the model concerned, which have been granted recognition and are entered on the recognition form.   The replacement of a manually controlled clutch with an automatic one, is authorized, whatever its operating system may be.

l) Differential:  it may comprehend a device enabling to limit its normal functioning (limited slip control).  This device must be entered on the recognition form or on an additional form (variant).

The use of  a device which completely blocks the functioning of the differential may not be accepted unless it has been fitted on the same minimum number of cars as necesary for the recognition of the basic model.

m) Pistons and camshaft(s):  all modifications of pistons are permitted.  They may be lightened, their shape may be altered and they may even be replaced by others supplied or not by the manufacturer.

n) Cylinder block and head:  the increase of compression ratio through machining of the cylinder head or block (or by using a thinner gasket or removing it) is authorized.

o) Muffler:  the make and type are free, on condition that the original exhaust manifold -- and particularly its outlet port -- remain entirely identical to the original part.  The silencing effectiveness shall not be diminished.  It shall, in any case, remain within the limits provided by the police regulations of the country where the event is run.

By exhaust manifold is meant the part collecting together the gasses from the individual exhaust ports.

p) Finishing off:  all perfecting operations by finishing of machining the original mechanical parts, but not their replacement, except with regard to springs, pistons and camshaft(s) as specified above under sections j and m.  The term "Mechanical Parts" covers all those included in the propulsion system, the steering system, the suspension and the braking system as well as accessories necessary for the normal operation of these systems.  In other words, provided it is always possible to acsertain unquestionably the origin of the series-production part, it may be rectified, balanced, lightened, reduced, or modified with regard to the shape through tooling, to the exclusion of any addition of material or any mechanical extension or of any process involving a change of the characteristics of the molecular structure or of the surface of the metal.

q) Wheels and rims: must retain the dimensions provided by the manufacturer for his series-production and be mentioned on the recognition form.

One basic series may comprehend wheels of different types (solid or perforated disc wheels, spoke wheels, etc. . .), and different rims.  But even when the recognition form mentions such differences, all four wheels must have the same diameter.

r) Brakes:  the fitting of a dual pump or any type of device providing both a simultaneous action on the four wheels and divided action on the front and rear wheels is authorized.

The protective shields normally affixed to disc brakes may be altered and reworked but may not be removed.

The make and attachment system of linings are free, but no other change is authorized.   In particular, the dimensions of inner friction surfaces must remain unchanged.

s) Coachwork elements:  the steering-wheel and the front seats may be replaced, provided seats of at least the same weight as the original ones be substituted for them.

In the event the original seats are replaced by different seats, the total weight of the new seats must be equal to that indicated on the recognition form, however, it is not compulsory that the two seats be of equal weight.

Modification, reinforcement and/or relocation of the jack sockets or pads is permitted.

t) Cables and lines:  it is allowed to entirely modify the arrangement and location of all cables and lines providing for the passage of fluid elements (air, water, fuel, electric current).

These terms include the lines which are part of the suspension system.  The material and the location of all lines may e changed and altered at will.