Amendment ref date 03/01/2010
These construction regulations have been reviewed for 2010 and are now current. Amendments made for 2010 are in bold italics.
If you are
considering purchasing or constructing a car which is not currently being raced, you must contact V6 Super Rods to receive the latest information.
VIOLATIONS
When referring to the engine, or construction, rules and regulations, the principle will always be: unless permission is specifically granted to make modifications, nothing may be done to alter or change, in any way, the standard parts.
Unless these rules state you can do it, YOU CANNOT DO IT.
All production car and all engine specifications will be taken from the Technical Service Data Book For Cars as published by Glass’s Guide Service Limited UK Edition.
INSPECTION
The Board reserves the right to inspect any car or engine at random. Any violation may result in suspension from racing of the driver concerned. Refusal to submit to a Board sanctioned request WILL result in automatic suspension. Cars placed in major championships will be subject to post-race scrutineering.
Note. In the event of the legality of parts being disputed, they must be left with a Board official or Board appointed scrutineer for further inspection. Failure to comply with this WILL result in the offending part being ruled illegal. The absence of casting marks renders parts illegal.
Definitions used in these regulations: -
Rear wheel drive cars - Cars which, when originally produced, were rear wheel drive.
Space/semi-space frame cars - Cars, which are, based on models which, when originally produced, were front wheel
drive cars.
V6SR1. CAR MODELS
Only saloon or coupe type cars with a minimum length of 14 feet are permitted. While the Board are keen to encourage new models on to the track, any driver considering purchasing or constructing a car which is not currently being raced, must contact V6 Super Rods. The decision to include additional models will be made with the interests of the sport as the fundamental guideline.
V6SR2. ENGINES
Type : All Cars
a) All Rear wheel drive cars. b) Space/semi-space frame front to rear wheel drive conversions must use the 2.8, 2.9, 3.0 Ford V6 engines. Dry sump systems are not permitted.
Position
a) Rear wheel drive cars. Engine position must not extend further back than the windscreen bottom aperture against the rear face of the engine block, when viewed vertically. To enable this to be checked, a half-inch hole must be drilled in the bottom edge of the furthest forward point of the lower windscreen aperture.
b) Space/semi-space frame front to rear wheel drive conversions’ engine position must not extend further back than the windscreen bottom aperture against the rear face of the engine block, when viewed vertically. To enable this to be checked, a half-inch hole must be drilled in the bottom edge of the furthest forward point of the lower windscreen aperture.
The following modifications are permitted if required: -
Cylinder Heads
Ford 2.8 and 3.0 V6
• Must be of the type manufactured to that engine and must retain their original concept.
• They may be polished, skimmed and valves may be changed.
• Any valve guide may be used, but must occupy the original position.
• Competition valve caps may be used.
• The fitting of double valve springs is permitted.
• Only two valves per cylinder allowed.
• Rocker gear is free.
Note :- The block face may also be skimmed.
Ford 2.9 V6
• Standard Heads and Valves
• Valve guides may be changed
• Competition valve caps may be used
• Competition valve springs may be used
• Single Spring Only
• No porting or polishing.
Camshafts/Timing Gears
Free
Block/Pistons
Ford 2.8 and 3.0 V6
A maximum overbore of 060 thou will be allowed on all units. Pistons must remain standard except that Powermax may be used as a replacement and valve pockets may be relieved. Pistons may be skimmed. Connecting rods and crankshafts and all ‘bottom end’ components must remain as manufactured items with no special replacements i.e. steel cranks, steel con rods etc.
Note; Pistons must not sit above the face of the block.
Ford 2,9V6
Any 2.9 V6 Cologne two valves per cylinder U.K. spec engine.( No parts permitted from the 24 valve engine) Only engines of a type manufactured on a full production basis are allowed. No homologation specials or limited supplies of specialised vehicles- this includes research and development units. A maximum of 060 thou will be allowed on all units, Connecting rods and Crankshafts and all ‘bottom end’ components must remain as manufactured items no special replacements. (i.e. no steel cranks or con rods etc.)
Crank & Rods must remain standard, replacement connecting rod bolts and nuts are permitted. (Only spot machining to achieve balance)
Standard Heads and Valves
Valve guides may be changed, Competition springs may be used.
Single Spring Only. No porting or polishing.
Standard 2.8 or 2.9 pistons may be used. (2.8 pistons may be machined flush with the top of the block or lower, piston skirts may be machined for clearance only, spot machining for balance only.)
Inlet manifold must be in standard form, (bolt holes may be moved for fitting) NO porting or polishing Flywheels Free
2.8 & 2.9 Distributor parts are interchangeable to achieve fitting.
Aluminium sumps are not allowed
Carburation
The carburation body must be of the type manufactured in standard form for the engine used. It must remain in standard form, and in its original position, and must not be modified in any way, changing or drilling jets and emulsion tubes is free; these are indicated on the two drawings provided.
A; Main Jet. B; Air Jet. C; Emulsion Tube.
Inlet manifolds must remain as standard manufacturer’s equipment and must remain in their original position, 2.9 engines No porting or polishing. Removal of material is permitted,2.8 and 3.0 engines only, but no additions
For Ford 2.8 and 2.9 litre engines must use the Weber 38 DGAS or 38DGMS, or Plerburg / Solex 28 EEIT Granada carburettor must be used, ‘Granada’ or ‘Sierra’ Inlet manifold, must be used.
For Ford 3.0 litre engines, the Weber 4ODFAV, must be used.
In addition all engines must run a designated standardised block between the carburettor and the Inlet manifold, ONE standard 1 mm carburettor top and bottom of the block only may be used, these blocks will be numbered and registered to the car and driver and WILL be checked regularly.
Turbo Chargers/Fuel Injection
Not allowed
Electronic Management Systems
Not allowed.
Aluminium Parts
No aluminium parts unless fitted as standard including bell housing and cross-member, or mentioned elsewhere in these rules.
V6SR3. CATCH TANKS
All catch tanks, capable of accepting any surplus oil or fumes from the engine and gearbox, must be fitted within the engine compartment. There must be a hose or similar conveyance fitted to feed oil from the engine and the gearbox to the catch tank. The tank should be emptied between races.
V6SR4. COOLING SYSTEM
All radiators or cooling containers must be fixed forward of the front bulkhead. All radiators must be fitted with a pressurised cap, and must be pressurised. An effective firewall must always be fixed between the radiator and the driver.
V6SR5. FUEL
All fuel tanks must be securely mounted behind the drivers seat line, preferably central to the chassis, a minimum of 12” from any external panel. All fuel tanks must occupy a separate compartment/firewall. All fuel tanks must have a positive means of fixing. Filler caps must not be prone to spillage.
No push-on caps permitted. Fuel lines must be metal or approved reinforced material. Tanks must be fitted with a vent pipe. The fuel systems must incorporate an on/off tap within easy reach of the driver and must be indicated by a suitable sign. Fuel tanks must be a maximum of 5 Gallons only. Roadside petrol fuel only to be used. No additives allowed with the exception of octane boosters. No aviation fuel permitted.
V6SR6. BATTERIES
Batteries must be bolted or clamped down in an upright position, using a material, which will not short or rot due to acid contamination, and must be covered by some rubber or acid-proof material. Batteries must be situated away from the drivers safety harness so that acid fumes cannot rot the straps. A battery lead master switch must be fitted externally on the nearside of the car in the vicinity of the rear window sill and must be denoted by a standard ‘electricity - danger’ or On/Off sign, for early location by safety marshals.
V6SR7. STARTERS
These are compulsory and must be in good working order.
V6SR8. TRANSMISSIONS
The gearbox is free and may be altered. Adapter plates are allowed to facilitate the fitting of mass-produced
gearboxes. Automatic gearboxes may be used, or replaced by a manual gearbox.
Note: Quick-change ratio type gearboxes such as the Hewland/Doug Nash specialist boxes are NOT permitted.
V6SR9. REAR AXLE
Rear axles are Free, fitted with free, locked, Powerlok, or limited slip differentials.
No NASCAR type drop gear, quick-change type of axles permitted. No rear wheel steering.
V6SR10. EXHAUSTS
Exhaust manifolding is free. Standard Cast or Fabricated Manifolds may be used, but when manifolds terminate into a single pipe, this must terminate within 6” of the front of the rear wheels. Pipes must be a minimum of 36” long. A, QH3002 and QH 8325 must be fitted on both sides, or one AX891 or one Fordson tractor box E1ADDN523OA, one each side, or a Jetex Super U31 6335, 2.5” Bore, or Terbo Tight V307600, 3” Bore. All systems must have a minimum of 10” tail pipe. When systems terminate at the side of the car, they can/should be angled downwards but exhaust noise must be reduced below 95 decibels. Drivers should be aware that silencers must be effective at all times and noise checks are now compulsory under environmental health legislation.
Note: The above combination of silencers or single silencer option also applies to single exhaust systems.
V6SR11. SUSPENSION
a) Rear wheel drive cars - No independent suspension units to be used where not fitted as standard. Competition parts may be used but no aluminium struts. Four or five link rear suspension is eligible for use. This also applies to the use of a live axle where not fitted as standard. The floor panels must remain complete throughout and only two holes with a diameter of 6” are allowed to pass things through (see rules on floor). Adjustable shock absorbers may be fitted on all wheels. Adjustable platforms may also be fitted, but no active ride systems.
Shock absorbers fitted with separate reservoirs are not permitted. Shock absorbers)rollbars that can be controlled from the driving position are not permitted..
b) Space/semi space framed cars - Competition parts may be used, but no aluminium struts. Adjustable shock absorbers may be fitted on all wheels. Adjustable platforms may also be fitted,
but no active ride systems. Shock absorbers fitted with separate reservoirs are not Permitted. Shock absorbers/roll bars that can be controlled from the driving Position are not allowed. Cars may be adapted to take wishbone suspension and/or Macpherson struts.
V6SR12. BRAKES
Brakes must be effective on all four wheels. Parking brakes are optional but if fitted should be in working order. If no parking brake is fitted the car must be securely chocked when in the pit area /and/or unattended.
Aluminium calipers are permitted
V6SR13. WHEELS
A maximum wheel diameter of 13”. The maximum wheel width is 10”, but they must not protrude beyond the wheel
arches (see rules on tyres and body). Wheel centre or rims may not be reversed. No home made wheel spacers allowed, No non-ferrous metal hubs i.e. aluminium, titanium. etc
14. TYRES
The only tvres allowed are Avon N.H.R.P.A. A10 or Avon 7168 in slick form. Wet tyres are free but the Avon tyre is the preferred.
Tyres must not protrude beyond the width of the bodywork. (See rule on bodywork). The buffing off of tvre stamps and markings renders the tvre illegal
V6SR15. ROLL CAGE
a) NO ALLOY ROLL CAGES ARE PERMITTED. Rear wheel drive cars - A roll cage must be securely welded and bolted to the floor and/or chassis providing that the floor is also securely attached to the chassis. All tubes must be of steel and be of a minimum 1 and 1/4” inch diameter or 10swg (3mm) or 1-1/2” O.D. l2swg (2.5mm) and all joints must be firmly welded over at least 90% of the area. RAC approved roll cages are permitted. A hole 1/8th inch must be drilled in the roll bar on the nearside front upright approximately 6” above the floor and facing inwards so that an inspection can be made of the tube thickness. Two horizontal ‘chicken bars’ must be fitted (as above thickness on the roll cage), on the driver’s side between the driver and the door at approximately knee height to minimise injuries due to a collision by another car into the door. If these bars can be curved into the door panel, they will afford better protection. At least one chicken bar’ must be fitted to the passenger door. All roll bars that can come into contact with the driver’s head MUST be padded for greater protection, and it is wise to pad other bars, which are close to the driver’s body. A minimum of one drop bar must be fitted from the rear of the roll cage to the parcel shelf. All ‘chicken bars’ must be fixed to the roll cage. Where the front of the roll cage protrudes through the front bulkhead, one bar only is allowed and may be fitted to the top of the suspension struts.
b)Space/semi-space framed cars - As above with the mandatory amendment that all tubing used must be 1 and 1/2 inch diameter(12 gauge) steel.
There must also be one dash tube from left to right, joining the front uprights, and one tube from left to right, behind the driver’s seat, joining the rear uprights.
V6SR16. FLOOR
a) Rear wheel drive cars - The floor pan must be complete in the drivers compartment.
A steel or woven asbestos firewall must separate the Engine front and Fuel Tank rear from the driver.
Two holes of a maximum 2” diameter must be incorporated into the lowest part of the boot floor to allow any spillage of petrol to escape.
b) Space/semi-space frame cars - A complete steel floor must be fitted to the driver’s compartment.
A steel or woven asbestos firewall must separate the Engine from the driver, and the fuel tank from the driver. Two holes of a maximum 2” diameter must be incorporated into the lowest part of the Boot floor if fitted to allow any spillage of petrol to escape.
V6SR17. SEATS
All seating and interior trimming must be removed except for the driver’s seat. The driver’s seat must be firmly fixed or bolted down. No wood or easily breakable materials to be used for fixing. A head restraint is compulsory if not built into the seat. Seats must comply with guidelines issued periodically by the British Oval Racing Safety Executive. (BORSE).
V6SR18. SCREENS
Windscreens may only be left in if they are laminated or Perspex type. Where windscreons are left in place, fully operative washers and wipers must be fitted. Perspex visors or mesh netting in front of the driver is permitted for protection. All glass must be removed from the outside of the car and the headlamp apertures must be blanked off. using a maximum of 16 gauge aluminium, and these blanks must not have more than one inch overlap.
Perspex rear quarter-lights complete with the driver’s name, are mandatory. Lettering should be minimum 3” capitals.
V6SR19. BODY
Car bodies including the bonnet, doors, boot lid, wings and spats must be made of steel, kevlar, fibre glass or glass-fibre mix.
Foam-filled panels are not permitted. Two inspection holes must be drilled into the sills to check thickness. The maximum width permitted for any car is 78 inches at its widest point. Wings and spats in particular must not be too strong and scrutineers will refuse cars which they feel are outside the spirit of this rule. Bonnet and boot lid must have a secondary fastening. rear doors must be bolted or welded shut. Front doors must have a secondary fastening, in addition to the door lock, if they are not welded shut. A .75” square metal upright to be welded or bolted into the windscreen aperture, one third of the way along the aperture from the driver’s side. All tyre rubber must be covered by spats or wing fairings. No liquid or solid ballast permitted. The four door body shell on the Ford Sierra may be substituted for the two door model. Any Capri body shell may be used. Any car converted from four door to two door must first be approved by the Association. Replacement of the front and rear wings and body panels is permitted, provided the car retains the standard silhouette in side elevation.
All car bodies must have some kind of Wider Arch or Spats on the wheel arch to conform to the configuration and identity of the formula.If steel panels or arches/spats are used, these must have the edges folded under to eliminate sharp edges. Front silhouette must remain symmetrical, no radical offset. Front panels must retain the standard manufacturer’s grill and headlamp apertures (albeit blanked off) either in original or replica form. The 3 front panels must not be bonded together to form one unit. The boot lid, tail gate, bonnet and doors may be replaced by a lighter material. Any replacement panel must replicate the same profile and style as the original fitting. Drivers are urged to securely fix bonnet and doors with overlock clips or similar so there is no possibility of them coming off during racing. The suspension must not protrude beyond the silhouette of the car. The wheelbase of the car must remain standard plus or minus 2”. Any holes in the bonnet must be forward of the engine timing cover.
Weight.
The completed car, minus the driver, must have a minimum weight of 900KGs.
a) Rear wheel drive cars - bodies must not be cut, shortened, or lowered.
b) Space/semi-space frame cars - the windscreen aperture MUST be situated in exactly the same position as defined by the manufacturer. Measurement will be taken using the front bumper as a yardstick. Car weights must be logged before the third meeting of the season and will be published for reference. Cars will be re-checked on a random basis.
V6SR20. SPACE/SEMI-SPACE FRAME CHASSIS
Full or semi space frame chassis are permitted, and the only materials allowed for construction purposes are one and a halt inch by one and a half inch box section or one and a half inch 12 gauge tube. If a car is deemed to have been built over specification and is carrying more steel than is necessary to perform in the image of the sport, the scrutineer will not allow the car to race.
Weight -The completed car, minus driver, must have a minimum weight of 900 KGs.
V6SR21. BUMPERS
Plastic or fibreglass replicas are allowed where fitted as standard. Maximum size brackets must be 1’ box section.
Front bumpers, brackets to center section not to pass outside of chassis rails, with lateral supports for sides.
V6SR22. REINFORCING
No form of reinforcement is permitted, no extra ironwork under the boot or bonnet areas.
V6SR23. AEROFOILS
Roof Aerofoils are not permitted.
Boot Aerofoils must not be above the roof line.
V6SR24. PAINTWORK AND SIGNWRITING
Numbers are only allocated on receipt of a suitable licence application. Numbers allocated must be displayed on both doors and roof.
The minimum size of numbering on doors is 12” high and 2” wide. Numbers must have a professional and attractive appearance.
All numbers must be legible (Look at your car from a distance if you cannot read the number properly then you may lose points or positions) Colourful paint jobs are encouraged.
The bodywork and paintwork must be maintained in good condition. Cars not suitably presented can be excluded from racing by the scrutineer.
V6SR25. MIRRORS
Rear-view driving mirrors are compulsory and should be fitted inside the car. However, outside mirrors may be fitted but must be within the bodyline of the car.
V6SR26. STOP LIGHTS
Two stop/brake lights must be fitted onto the rear parcel shelf, or rear window aperture a maximum of 30 inches apart facing backwards. Lamps must be operated by a standard stop switch as fitted to the particular model of car. No other switches or modifications to switches permitted.
Lamp specification - for round type lights mm 3” diameter, for square type lights mm 3” square, max. 4” square. Bulbs to be 21 watt intensity.
V6SR27. SAFETY EQUIPMENT
As per ORCi Safety regulations (view or download a copy HERE)