Welcome to the Official Cornwall & Devon Land Rover Club. Please feel free to browse our page to get more information regarding new and upcoming events, ongoings within the club as well as what our organization is all about.

There are a wide variety of Land Rover vehicle types, e.g. Range Rovers, SWB Land Rovers, 101 Forward Control etc. In order to try and make competitions fair to all, the various types are designated into Classes, so that for instance, a Defender 90 is not competing directly with a 80″. The Classes are split into two major divisions for Trials and Competitive Safaris respectively and within these there are two sub divisions for Standard and Modified vehicles.

All vehicles used for CCV Trials, Competitive Safari, Team Recovery, Timed Trials and Point to Point must have an ALRC Competition Vehicle Log Book.

This section lists the permitted changes from the original standard production / factory design and dimensions of the whole vehicle and its component parts.

When optimising a road-legal vehicle for off-road use, owners may need to take advice on the suitability of any alterations to establish that they are not detrimental to safety for public road use, and that the terms of the vehicle’s insurance are not contravened.


Original dimensions are defined in the Vehicle Sizes Chart in the ALRC Handbook.

B.1.1 All dimensions given in the Vehicle Sizes Chart shall apply.

B.2.1. Alternative engines or engine parts which may be interchanged are:-

Original Land Rover engine

Acceptable re placement

1.6 and 2 litre

Rover 60 2 litre car engine.

2.25 litre

Rover 80 2.25 litre car engine or normally aspirated 2½ litre diesel.

2.6 litre

Any Rover P4 range car engine.

Up to 2.5 litre 4 cylinder Turbo-diesel

Any other 4 cylinder 2.5 litre (nominal) turbo-diesel Land Rover engine.

2.5 litre 5 or 6 cylinder Turbo-diesel

Any other 5 or 6 cylinder 2.5 litre (nominal) turbo-diesel Land Rover engine.

V8 petrol (where factory fitted.)

Any V8 aluminum engine up to maximum size listed in the vehicle size chart from product listed in A.2.

B.2.2. Engines may be modified to enable the use of unleaded petrol, electronic ignition, LPG (Liquefied Petroleum Gas), rev limiters.
B.2.3. Carburetors and air filters may be changed subject to the original number fitted not being exceeded and original standard inlet manifolds are retained.
B.2.4. Spark plugs, HT cables, ignition coil are free.
B.2.5. Additional gauges to monitor engine performance may be fitted.
B.2.6. Air filter elements are free and may be removed.
B.2.7. Engine mounts are free.
B.2.8. The forced induction coefficient does not apply to diesel engines. (See MSA Yearbook 2006. E12.4.1)

B.3.1. Competition seats are permitted. (See MSA Yearbook 2006 reg. Q.2.2. for attachment specs.) Seat support structure may be strengthened as required.
B.3.2. Seat belts are mandatory in all competitions. Anchorage points minimum specifications are:-

RTV – Standard class, as per manufacturer’s design. Modified Class as per CCV, Comp Safari, Point-to-point and Team Recovery.
CCV, Comp Safari, Point-to-point and Team Recovery.
For Defender style vehicles; the factory-standard anchorage points on 90 / Defender-type models onwards represent the minimum specifications. Any vehicle prior to that requires anchoring either directly or indirectly to the chassis in the manner and materials of the Defender type installation, or better.
For Range Rover / Discovery / Freelander vehicles; the factory-standard anchorage points should be retained.
As applicable, anchorage points on the roll-cage to the rear of the driver / passenger shall be as shown in the Roll-bar Regulations.

B.4.1. The exhaust system may be modified.

B.5.1. Replacement or additional cooling fan(s) may be fitted but must remain within the confines of the original bodywork.
B.5.2. Oil coolers may be added but the coolers and associated pipework / plumbing etc. must remain within the confines of the original bodywork

B.6.1. Steering linkage rods may be sleeved or have extra material bolted to them for additional strength. Any sleeves must be made in such a way that they can easily be removed at the Scrutineers request to enable examination of the contained part(s). (For the avoidance of doubt, steering gear parts may not be welded after original manufacture.)
B.6.2. High strength one-piece non-Rover steering rods are allowed. Locking of these will be by the use of lock nuts, not clamps.
B.6.3. Axle casings may have strengthening material welded to them.
B.6.4. Series I, II & III steering boxes and axles may be interchanged to an improved specification (i.e. late items to early vehicles only), points of attachment being strengthened where necessary.

B.7.1. Any brand / make of steel wheels are allowed but they must be of adequate strength, have a diameter matching that of factory fitted wheels for that model and have an offset between the outer flat of the nave plate and the external face of the bead area (not the outermost turned-out flange of the rim) of 4” / 102mm or less.
B.7.2. The use of wheel spacers is prohibited. (See MSA Yearbook 2006 E12.8.2)

B.8.1. Any size tyres may be used so long as they have a maximum inflated diameter of 33″. Forward Control Land Rovers (all types) may have larger diameter tyres up to a maximum inflated diameter of 37”.
B.8.2. Tyres may be changed to any type other than tractor or implement tyres, “maxi-cross” type tyres or those fitted with studs or chains. (Tractor and implement tyres have a “V”-shaped tread of separate blocks of rubber like the ones fitted to the driving wheels of tractors and dumper trucks.)

B.9.1. Leaf-spring shackle plates may be altered but the distance between the spring bolt centre and the chassis bolt centre must be no more than 6″ / 152.4mm. If greater than 5″ / 127mm between pin centre’s, they shall incorporate a mid-point strengthening device forming an H-shape assembly.
B.9.2. Any make of suspension springs may be used but they shall be the same type as those fitted as standard for that model. (See B.20. “Use of non-Rover parts”).
B.9.3. Leaf spring types:-

B.9.3.1. In all cases, the ends of the top and the second leaf must wrap around the eye.
B.9.3.2. Springs that were originally built with more than 5 leaves may be rebuilt so as to have no less than 5 leaves. The leaves below the top two MUST be in proportionally reducing steps similar to the originals and must be of the original thickness.
B.9.3.3. Parabolic leaf springs may be used but must have at least two leaves on each spring. (This allows, but is not restricted to, the use of leaf springs built to the Santana parabolic designs.)

B.9.4. The narrow springs on 80″ Land Rovers may be replaced with wider springs as an alternative.
B.9.5. Axle check-straps may be removed.
B.9.6. Any radius arms that have been welded to, drilled or cut into, deliberately notched or bent up / down / sideways are prohibited.

B.10.1. Dampers are free
B.10.2. On Series Ones, the front damper mounts on the axle may be altered to give more clearance.
B.10.3. Additional damper mountings are permitted to be in place.

B.11.1. For safety reasons, under seat-tank-covers / lids shall be screwed down with a gasket. This affects early vehicles in particular.
B.11.2. Fuel tank location / design may be changed. If the fuel tank is moved, a separate metal cover (vented at the bottom) must be fitted even if a truck cab is fitted.
The basic requirement is to prevent fuel leaking onto the driver / navigator if the vehicle overturns. The design should be such that any fuel that has leaked into the cover when the vehicle was inverted will drain onto the ground when the vehicle is righted. The cover must NOT be sealed at the bottom or fumes will be trapped.
B.11.3. Where an alternative fuel to petrol or diesel is used, the installation must conform to current Road Vehicle Construction & Use Regulations. If it is LPG, then follow the LPG Industry Technical Association Code of Practice No. 11 as a minimum specification. The cylinder(s) and the pipework must be protected to at least the same standard as the original fuel system equipment. If the tank is installed inside the passenger compartment, the tank must have a cover to protect it and its valves and pipework etc. from damage. Relevant test certificate(s) must be retained for inspection. Any date markings on the pipework must remain legible.
B.11.4. Fuel pumps are free

B.12.1. Bolt-on sill panels and air dams / front spoilers may be removed. Where applicable bumper end caps may be trimmed along the horizontal moulding line level with the bottom of the bumper. The number plate moulding may be removed.
B.12.2. Bonnets.

B.12.2.1. Series I, II, IIA and III vehicles may be fitted with Defender-style bonnets, grilles and front panels.
B.12.2.2. Composite material bonnets are allowed if they have been made from fire retardant materials.
B.12.2.3. If the vehicle has a permanently fitted windscreen, then the bonnet may have holes, louvers, air-scoops etc.

B.12.3. The shortening of a chassis is permitted providing the resulting wheelbase matches the body being used. The ends of the chassis may be altered to accommodate the requisite style of bumpers and / or cross-members.
For example, if a Range Rover chassis is shortened to go under a 90 style body, the wheelbase must be the same measurement as in a 90 and body dimensions and appearance must be exactly as in a 90. All welding on the chassis must be of a high standard.
B.12.4. Cross members and outriggers may be replaced by section of equal or greater strength than the original whilst retaining original minimum
B.12.5. Underbody protection may be added.

B.13.1. Heavy-duty bumpers, and bumpers associated with winch installations are permitted on condition they are no smaller or weaker than the originals. See Log Book article Dimensions Chart for bumper widths.
B.13.2. On Land Rovers, bumpers, mounting and rear cross-members must be straight, have at least equal strength to the original fitment and shall be mounted in the original position with the front and rear faces presenting flat vertical faces.
B.13.3. On Range Rover / Discovery / Freelander bumpers must be of original size and shape and have at least equal strength to the original fitment. Bumper sizes and shapes may vary with the model concerned.

B.14.1. Non-standard batteries are permitted but wet batteries must be fitted with anti-spillage caps. All types of battery must be separated from the driver / passenger compartment by means of a bulkhead or cover, must be securely fixed and if moved from the normal place of fitment must be adequately covered to contain any spillage in the event of a roll over. Covers do not have to be of metal; plastic and wood are acceptable.

B.15.1. The hand-brake lever may be altered or changed in order to meet the requirement that the hand brake is operable by the driver whilst wearing a seat belt.
B.15.2. Land Rover drum brakes may be interchanged with other Land Rover drum braking systems.
B.15.3. Land Rover disc brakes may be interchanged with other Land Rover disc braking systems.
B.15.4. Brake friction materials are free.

B.16.1. The use of traction control and hill descent systems will be limited to standard vehicles where fitted as original equipment.

B17.1. Lockable axle differentials may be fitted on condition they are disabled in an unlocked state to the satisfaction of the Scrutineers and not used during competition.

B.18.1. All types of Land Rover gearboxes and their component parts may be interchanged.
B.18.2. Automatic Transmissions must be fitted with an inhibitor to prevent the engine from being started in gear.

B.19.1. Adequate front and rear recovery attachments must be provided for recovery purposes in all events. Bumpers, tie-down rings, lifting rings or Range Rover / Discovery “tow fittings” are not adequate. Factory specification (or better) trailer hitches are acceptable. If a tow-ball is fitted, welding alone is insufficient – high tensile nuts and bolts must be used for attachment. If the recovery point is attached to a bumper, the bumper must be attached to the chassis with high tensile nuts and bolts. A clevis and pin fitting or pair of Land Rover chassis-shackles (not spring shackles) are recommended.

B.20.1. The following non-Rover design items may be fitted (subject to limitations elsewhere in these rules):-
a) Wheels, tyres, steering wheel, seats, seat belts, mirrors.
b) Service items (ignition components, filters etc)
c) Bull-bars, entry steps, lens guards, roof-racks, tow-bars, extra lamps / lights (spot, fog, etc.), winches.

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