CHAPTER 13 RALLY Appendix 15- Technical Regulations- Road, Endurance and Historic Road Rally Cars
1. General
1.1. The Vehicle must be currently registered and taxed as a Private Car and comply with all statutory regulations as to the Construction and Use regulations( especially regarding brakes lighting tyres warning devices rear view mirrors silencers speedometers wings and windscreens).
1.2. In this section the term MODEL refers to all variants of the same family of cars. In addition to complying with Chapter 7( Competitors Vehicles and Vehicle Safety Equipment) and to the extent relevant Chapter 8( Fuel and Tyres and Testing). All Vehicles competing in Road Rallies must comply with the appropriate part of the following:
2. Body
2.1. Bodywork must represent the manufacturer’ s original profile and may include any optional extras available directly from the manufacturer.
2.2. Bumpers must be fitted. 2.3. Paintwork must be one colour or manufacturer’ s original colour scheme. No primer is to be visible.
2.4. Vehicles must not have wheel arch extensions unless fitted by the manufacturer as a standard item to the body shape.
2.5. All major internal trim as fitted to the body type by its original manufacturer when offering it for sale must be retained. Major internal trim includes headlining, inside door panels( which may be replaced with representative material) for all doors and / or rear side panels alongside the rear seat( for a 2 door car), carpets and rear seats. It does not include parcel shelves, boot carpet or boot side trims.
2.6. Front seats may be improved or replaced. 2.7. The trim including the rear seat may be cut to allow the fitting of a safety cage.
2.8. If equipped with a non-standard fuel tank it must be separated from the Driver / Passenger compartment by a protective bulkhead of non-flammable material preventing the passage of fluid or flame.
2.9. Full harness seat belts may be fitted. 2.10. Guards may be fitted beneath the vehicle to provide protection from damage.
3. Engines and Transmissions 3.1. Vehicle engines must have:
a. A maximum of four cylinders. b. A maximum of two carburettor chokes( two single or one double). c. A maximum of one camshaft per bank of cylinders.
3.2. Engines with more than one camshaft per bank of cylinders may be used providing that:
a. Any replacement engine comprises a block and cylinder head from the same engine family. b. c. they were originally fitted with fuel injection and
that the fuel injection system complete with inlet manifold and throttle body is retained unmodified except as permitted in Art. 3.3. c below.
Motorsport UK 2025 National Competition Rules Version 11
Chapter 13 Appendix 15- Technical Regulations- Road, Endurance and Historic Road Rally Cars
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