SPECIFICATIONS

All production sedans from 1940 to 1954 with original bodies and D.O.H.C. inline 6-cylinder and O.H.V. V-8 engines, as well as O.H.C. and D.O.H.C. 4-cylinder engines.

Motor: Se permitirán los motores modernos de la misma marca / familia y configuración, siempre y cuando tengan un distribuidor mecánico para el sistema de encendido, con cilindrada hasta 5,000cc (305 pulgadas cúbicas) para motores de 6 cilindros y 6,000 cc. (366 pulgadas cúbicas) para motores de 8 cilindros en V, y de 2,500 cc (152.6 pulgadas cúbicas) para motores de 4 cilindros. Se permite el uso de cabezas de aluminio. Para los autos sedanes americanos se permite un desplazamiento máximo de 8″ (20.32 cm.), con respecto a la posición original del motor. No se permite el uso de cárter seco. La carburación autorizada, depende del número de cilindros del motor, de acuerdo con lo siguiente:
▪ Un carburador de 4 gargantas (max. 600 c.f.m.) para motores de 8 cilindros en V.
▪ Tres carburadores de 2 gargantas para motores de 6 cilindros en línea.
▪ Dos carburadores de 2 gargantas para motores de 4 cilindros.

SPECIFICATIONS

Mass-produced and limited-production sports cars, prototypes and/or reproductions authorized by the Organizing Committee from 1940 to 1954 or similar (Article 15) with original bodies and/or those made of the same material and with original or open engines up to 2000cc (122″ cubic capacity) for mass-produced cars.

Engine: For the Minor Sport category and in all cases, the use of modern 4-cylinder mass-produced engines with a configuration similar to the original car (in-line or boxer) is permitted, with a maximum displacement of 1,600 cc, 4 valves per cylinder and double overhead camshaft (D.O.H.C.). Any limited production car or prototype from the period must retain its mechanical characteristics. However, an increase of 15% over the original 1954 displacement is permitted. A maximum displacement of up to 6″ with respect to the original engine position is permitted. Intake is unrestricted using a maximum of 2 carburetors with 2 barrels each. Multiple carburetors may be used. Injection systems are not permitted.

SPECIFICATIONS

All mass-produced and limited-production sports cars, prototypes and/or reproductions authorized by the Organizing Committee from 1940 to 1954 or similar (Article 15) with original bodies and/or of the same material or a contemporary substitute authorized by the organizing committee and with original engines or those of the same family greater than 2,000cc (122″ cubic) and open up to 5,000cc (305″ cubic), unless the original displacement was greater.

Engine: For the “Sport Mayor” category and in all cases, the engines must be original, although the use of modern mass-produced 6-cylinder in-line engines with a maximum displacement of 3,000 cc (183″ cubic feet) with four valves per cylinder and double overhead camshaft (D.O.H.C.) is permitted. Any limited production car and/or prototype from the period must retain its mechanical characteristics. However, an increase of 15% over the original 1954 displacement is permitted. In sports cars, the intake must be with the original system. For all cars in this category with modern engines, a maximum of three two-barrel carburetors each may be used. In case the original carburetors of any V8 type engine are replaced, the use of a four-barrel carburetor with a maximum limit of 600 c.f.m. is permitted. Injection systems are not permitted, unless the models were originally manufactured with this system.

SPECIFICATIONS

This category groups together cars of the same brand, model and year as those that participated in the original Carrera Panamericana from 1950 to 1954. The appearance of the car must be original, only modifications and updating of some systems to improve safety without affecting the original appearance are permitted. Likewise, all cars that comply with appendix "K" and have an "FIA HTP" (Historic Technical Passport) within the "E" period from 1950 to 1954 or similar will be accepted by the Organizing Committee as long as they meet current safety requirements. For this category, if three or more cars of a specific cylinder capacity are presented, the Organizing Committee will open a "Class" specific to the cylinder capacity range of the cars.

Motor: The use of original engines or similar in configuration and characteristics is permitted without modifications and with a two-barrel carburettor of maximum 500 c.f.m. or four-barrel carburettor of maximum 600 c.f.m. If the original engine is used, its displacement must be respected with a tolerance of 5% over the original and the original carburettor must be kept or replaced with one with the characteristics described in the previous paragraph (two-barrel 500 c.f.m. or four-barrel 600 c.f.m.). Cast iron heads cannot be replaced with aluminum heads. The camshaft, intake manifold, carburettor and distributor can be replaced with modern design components, limiting the maximum flow of the carburettor not to exceed 600 c.f.m. It is permitted to replace the original manifolds with exhaust headers with unrestricted diameter and length of the exhaust pipes.

SPECIFICATIONS

All mass and limited production cars from 1955 to 1975 and more recent models aesthetically and mechanically identical to those of 1975 previously authorized by the Organizing Committee regardless of the country of origin. Cars included in Appendix “K” of the FIA ​​International Sporting Code equipped with original 4-cylinder engines and original bodies are also accepted as long as they comply with current safety requirements. For this category, in case three or more cars of a specific engine capacity are presented, the Organizing Committee will open a “Class” specific to the range of engine capacity of the cars.

Motor: Non-original 4-cylinder engines are permitted, provided their capacity is no greater than 1,600cc (97.64″ cubic) and with a single overhead camshaft. Period engine modifications are permitted (if there is proof or evidence) provided they are approved by the Organizing Committee before being presented for scrutineering. A maximum oversize of 0.040″ is permitted. The use of carburettors is mandatory except for those cars originally equipped by the Manufacturer with a fuel injection system, which in this case must be the original make and model, and the competitor must present the corresponding FIA Homologation Form. The use of turbo chargers is prohibited except for cars that use this original system.

SPECIFICATIONS

All mass and limited production cars from 1965 to 1975 and more recent models aesthetically and mechanically identical to those of 1975 previously authorized by the Organizing Committee, regardless of the country of origin. Cars included in Appendix “K” of the FIA ​​International Sporting Code equipped with original 4-cylinder engines as well as original bodies and a limit of 2,000cc (122″ cubic) of displacement are also accepted as long as they comply with current safety requirements. For this category, in case three or more cars of a specific displacement are presented, the Organizing Committee will open a “Class” specific to the range of displacement of the cars.

Motor: Modifications to the engine considered to be of the period (if there is proof or evidence) and approved by the Organising Committee before the scrutineering are permitted. A variation of 10% of the original engine displacement is permitted. The use of electronic camshaft variation devices is not permitted. The use of carburettors is mandatory except for those cars that were originally equipped with a fuel injection system. In this case, the participant must prove the authenticity of the use of this system by means of documents from the period (catalogues, magazines, homologation form, etc.). The use of turbochargers is prohibited except for cars that use this original system. In this case, a coefficient of 1.7 will be applied to calculate the displacement for class assignment within the category.

SPECIFICATIONS

All mass and limited production cars from 1955 to 1974 and more recent models aesthetically and mechanically identical to those of 1974 previously authorized by the Organizing Committee, regardless of the country of origin. Cars included in appendix “K” of the FIA ​​International Sporting Code equipped with original 6-cylinder engines as well as original bodies are also accepted.

Motor: Modifications to the engine considered to be period-specific (if there is proof or evidence) and approved by the Organizing Committee before being presented for scrutiny are permitted. The maximum displacement for this category is 2.4 lt. for Porsche 911, 4.2 lt. for Jaguar, 3.0 lt. for Austin Healey, 2.8 lt. for Datsun and 4.1 lt. for cars of American origin such as Chevy II, Valiant, Falcon 6, etc. For cars not mentioned, a maximum oversize of 0.040″ is permitted. The use of carburettors is mandatory except for those cars that were originally equipped by the manufacturer with a fuel injection system. In this case, the participant must prove the authenticity of the use of this system by means of documents from the period (catalogues, magazines, homologation form, etc.). The use of turbochargers is prohibited except for cars that use this original system.

SPECIFICATIONS

Historic cars from 1964 to 1975 and identical to these, even if they are later models, as long as they maintain the same line and shape, equipped with a six-cylinder boxer engine up to 3,800 cc, or a six-cylinder V engine up to 3,500 cc or a six-cylinder in-line engine up to 4,200 cc. For this category, if three or more cars of a specific cylinder capacity are presented, the Organizing Committee will open a "Class" specific to the cubic capacity range of the cars.

Motor: For cars included in this category were originally equipped with any of the following engines, allowing to increase the stroke displacement as described below: Porsche; six-cylinder opposed (boxer type) engine same as those described below, which could have up to 3,800 cc (231.8 cubic inches) stroke displacement. Other makes and models: six-cylinder "v" engine, up to 3,500 cc (213.5 cubic inches) and six-cylinder inline engines up to 4,200 cc (256.2 cubic inches). Modifications to all these engines are totally free except that electronic or mechanical control devices to vary during operation the opening, closing and lifting times of the camshaft(s) are prohibited. The induction system must be carburettors, except for those cars that were originally equipped with a mechanically operated fuel injection system, which must be verified with the original documents, corresponding catalogues, and/or with the FIA ​​or regional FIA homologation sheet if it has one. The use of injection systems with electronic control is explicitly prohibited. For cars equipped with carburettors, these are limited to the following: Weber, Solex or Mikuni carburettors must not exceed 50 mm in the diameter of the flow valve (butterfly) as well as 1.5 inches in diameter for "SU" carburettors. The use of superchargers and turbochargers or any supercharging system is prohibited except for cars that use this system from the factory.

SPECIFICATIONS

All mass and limited production cars from 1955 to 1975 and more recent models aesthetically and mechanically identical to those of 1973 previously authorized by the Organizing Committee, regardless of the country of origin. Cars included in Appendix “K” of the FIA ​​International Sporting Code equipped with original 8 and 12 cylinder engines and original bodies are also accepted as long as they comply with current safety requirements. Special cars, one-off or limited production or hand-made cars, built in the period from 1950 to 1954, which maintain their original mechanical and aesthetic characteristics may be accepted in this category, once their authenticity has been verified (Article 15) and authorized by the Organizing Committee before the scrutineering. For this category, in case three or more cars of a specific engine capacity are presented, the Organizing Committee will open a “Class” specific to the engine capacity range of the cars.

Motor: Connecting rods, pistons and rings are restriction-free. Pistons must not be more than 0.040″ in diameter over original. Valve train is restriction-free. The engine head must be cast iron, either original or a modern high-power one. The camshaft is restriction-free, as is the intake manifold. The use of a dry sump is prohibited. The use of a carburetor is mandatory and the maximum allowed intake is a 4-barrel carburetor and a flow not greater than 600 cubic feet per minute (c.f.m.). Cars weighing less than 2,800 lb (1273 kg) and equipped with an eight-cylinder engine must use a two-barrel carburetor with a maximum flow of 500 c.f.m. instead of the authorized four-barrel 600 c.f.m. carburetor. In the case of cars that had the direct fuel injection system as optional equipment (Chevrolet 1957), its use is permitted. In this case, the participant must prove the authenticity of the use of this system by means of documents from the period (catalogues, magazines, homologation form, etc.). The use of turbo chargers is prohibited except for cars that use this system from the factory.

SPECIFICATIONS

All production cars (sedans) from 1955 to 1975 with original bodies and 8-cylinder V-shaped O.H.V. engines. All mass and limited production cars from 1955 to 1975 and more recent models, regardless of the country of origin. In order to register a car in this category, it is necessary that the Organizing Committee approves its registration. For this category, in case three or more cars of a specific displacement are presented, the Organizing Committee will open a “Class” specific to the cubic capacity range of the cars.

Motor: Puntos generales que aplican a todos los autos de esta categoría:
▪ El motor debe de conservar su diseño y cantidad de cilindros idénticos al modelo original.
▪ La cilindrada máxima de la categoría es de 5000 cc.
▪ Está prohibido el uso de turbo cargadores excepto para los autos que utilizan este sistema de origen.
▪ Es obligatorio el uso del motor panamericana spec con las siguientes características principales:
▪ Motor base Chevrolet 350.
▪ Desplazamiento máximo 360 pulgadas cúbicas.
▪ Relación de compresión máxima 11.0:1.
▪ Es obligatorio el uso de cabezas de fundición de hierro.
▪ Sólo se permite el uso de un carburador de 600 cc. de 4 gargantas.
▪ El motor puede ser desplazado hacia la parte posterior del habitáculo sin que se modifique la posición original de la pared de fuego.

SPECIFICATIONS

All mass and limited production cars from 1976 to 1985 that have an FIA Historic Technical Passport (HTP – FIA Period H2, I & J1) regardless of the country of origin as long as they comply with current safety requirements. All cars in this category must comply with all points of their Historic Technical Passport without exception. Only one additional 1” wheel diameter is allowed on the homologation form in order to have more wheel options. The maximum speed allowed for cars in this category during timed stages depends on the period to which the car belongs. For cars from the “H2” (1976), “I” (1977-1981) period the maximum speed is 180km/h and for cars from the “J1” (1982-1985) period the maximum speed is 210km/h. Each vehicle will be equipped with a constant GPS monitoring device. For this category, if three or more cars of a specific engine capacity are entered, the Organizing Committee will open a “Class” specific to the engine capacity range of the cars. All cars in the category must be approved by the Committee prior to registration.

SPECIFICATIONS

Historic cars from 1976 to 1985 and similar, even if they are later models, as long as they maintain the same line. In order to register a car in this category, the Organizing Committee must approve its registration. For this category, if three or more cars of a specific cylinder capacity are presented, the Organizing Committee will open a “Class” specific to the cubic capacity range of the cars.

Motor: The architecture must be identical to the original, but a variation of 8% in displacement in relation to the original approved volume is authorized.

SPECIFICATIONS

These are all vehicles that do not correspond to any of the 9 competition categories indicated above («Panamericanos Car Group» or «Historic Car Group»); but that the Organizing Committee allows to participate without scoring and without the right to classification. Without exception, all cars and their modifications are subject to approval by the Organizing Committee. The participant must send the car's Digital Technical and Safety Card to the Permanent Secretariat to review its eligibility. The original gas tank must be replaced by a safety tank (fuel cell / fuel safe) of no more than 83 lt. capacity. The use of electric gas pumps is permitted.