MG CAR CLUB NORTH WESTERN CENTRE LTD COCKSHOOT CUP CHAMPIONSHIP 2009

1.        SPORTING REGULATIONS – GENERAL

1.1     Title and Jurisdiction :

The Cockshoot Cup Championship is organised and administered by the MG Car Club North Western Centre Ltd in accordance with the General Regulations of the Royal Automobile Club Motor Sports Association (incorporating the provisions of the International Sporting Code of the FIA) and these Championship Regulations.

MSA Championship Permit No CHR2009/095        Race Status National B

MSA Championship Grade : D

1.2     Officials :

1.2.1            Co-ordinator : Paul Goodman

1.2.2            Licensed Eligibility Scrutineer : Chris Mansley

1.2.3            Championship Stewards : David Rainsbury, Nigel Minay, Paul Hurst

1.3     Competitor Eligibility :

1.3.1            Entrants must be fully paid up valid membership card holding members of the MG Car Club and in possession of a valid 2009 MSA Entrants Licence.

1.3.2            Drivers and Entrant/Drivers must be fully paid up valid membership card holding members of the MG Car Club, be registered for the Championship and be in possession of a valid MSA National B or higher grade Racing Licence.

1.3.3            All necessary documentation must be presented for checking at all rounds when signing on.

1.4     Registration :

1.4.1            All drivers must register as competitors for the Championship by returning the Registration Form with the Registration Fee to the Co-ordinator prior to the final closing date for the first round being entered.

1.4.2            The Registration fee is £25 payable to “MG Car Club North Western Centre Ltd”.

1.4.3            Registrations will be accepted from 1^st January 2009 until the final closing date for the first round being entered.

1.4.4            Registration numbers will be the permanent competition numbers for the Championship.

1.5     Championship Rounds :

The Cockshoot Cup Championship will be contested over seven rounds as follows:

Round 1  April 4^th                   Donington Park       MGCC

Round 2  May 9^th                     Oulton Park            MGCC

Round 3  July 11^th                    Silverstone             MGCC

Round 4  August 8^th                 Anglesey               BRSCC

 Round 5 September 5^th                 Cadwell Park          MGCC

Round 6 September 26^th/27^th  Croft                       DDMC

Round 7 September 26^th/27^th  Croft                       DDMC 

1.6     Scoring :

1.6.1            Points will be awarded to competitors listed as classified finishers in the Final Results as follows: 10,8,7,6,5,4,3,2,1 in each class plus 1 point for each starter. If there are less than three starters in any class, half points will be awarded.

1.6.2            The totals from the best six qualifying rounds will determine final championship points and positions.

1.6.3            Ties shall be resolved as follows: - Scores achieved by the respective drivers performances in their 7^th  race will be taken into account. If there is still a tie then the contender with the most class wins in all the events will be the winner. If this fails to resolve the issue then the number of fastest laps will be taken into account. If a tie still exists then the Championship will be jointly awarded.

1.7     Awards :

1.7.1            All awards are to be provided by the race organisers.

1.7.2            First, second and third in each class A, B,C and F per round.

1.7.3            The Cockshoot Cup and replica, the Cockshoot Class Trophies, and second and third in each class will be awarded for the Championship.

1.7.4            Garlands and Trophies are to be provided for presentation at the end of each race or at an end of meeting presentation ceremony.

1.7.5            In the event of any Provisional Results or Championship Tables being revised after any provisional presentations and such revisions affect the distribution of any awards the competitors concerned must return such awards to the MG Car Club in good condition within 7 days.

2.        SPORTING REGULATIONS  - JUDICIAL PROCEDURES

2.1     Rounds :

2.1.1            Rounds: In accordance with section C(d) of the 2009 MSA Yearbook.

2.1.2            Championship: In accordance with section C(d)of the 2009 MSA Yearbook.

3.        SPORTING REGULATIONS – CHAMPIONSHIP RACE MEETINGS AND RACE PROCEDURES

3.1     Entries

3.1.1            Competitors are responsible for sending correct and complete entries with the correct entry fees prior to the closing dates which shall be stated in the Supplementary Regulations for the event.

3.1.2            Incorrect or incomplete entries (including Driver to be Nominated entries) are to be held in abeyance until they are complete and correct and the date of receipt for acceptance of entry purposes shall be the date on which the Secretary of the Meeting receives the missing or corrected information or fee.

3.1.3            Any withdrawal of Entry or Driver/car changes made after acceptance of any entry must be notified to the Secretary of the Meeting in writing. If Driver/Vehicle changes are made after publication of Entry Lists with Final Instructions the competitor concerned must apply for approval of acceptance by the Stewards of the Meeting before signing on.

3.1.4            The Maximum Entry Fee for each round shall be determined by the organising club.

3.1.5            Entries for all rounds will be accepted strictly in order of receipt unless stated otherwise in Supplementary regulations.

3.1.6            Reserves are to be nominated on the Final List of Entries published with the Final Instructions or Amendment Sheet Bulletins. All reserves will practice and replace withdrawn or retired entries in Reserve Number order irrespective of class. If reserves are given Grid Places prior to issue of the first Grid Sheets for any round the times set in Practice shall determine their grid positions. If Reserves are given places after publication of the grid sheet and prior to cars being collected in the Official Assembly areas, they will be placed at the rear of the grid and be started without any time delay. Otherwise they will be held in the Pit Lane and be released to start the race after the last car to start the GREEN FLAG LAP or last car to take the start has passed the startline or pitlane exit, whichever is the later. Such approval to start MUST be obtained by the Clerk of the Course.

3.2     Briefings

Organisers shall notify competitors of the times and locations for all briefings in the Final Instructions for the meetings. Competitors must attend all briefings.

3.3     Practice

The minimum period of practice will be specified in the Supplementary Regulations. Should any Practice Session be disrupted the Clerk of the Course shall not be obliged to resume the session or re-run sessions and the decision of the Clerk of the Course shall be final.

3.4     Qualification

Each driver should complete a minimum of 3 laps practice in the car to be raced and in the correct session in order to qualify for selection and order of precedence as set out in the MSA Regulations G15. The Clerk of the Course and/or Stewards of the Meeting shall have the right to exclude any driver whose practice times or driving are considered to be unsatisfactory – as per MSA Regulation G15.

3.5     Races

Race distances will be as specified in the Supplementary Regulations.

3.6     Starts

3.6.1            All race start countdowns are to have a minimum elapsed period of 3 minutes from the time all cars are released to form up on the grid to the start of the Green Flag Lap(s) in the formation as specified on the Track Licence for each circuit.

3.6.2             The minimum countdown procedures/audible warning sequence 1 minute to start of the green flag lap, start engines/clear grid 30 seconds – visible and audible warning for start of the green flag lap.

3.6.3            The use of tyre heating/heat retention devices, tyre treatments and compounds is prohibited.

3.6.4            Any cars removed from the grid after the 1 minute stage or driven into the pits on the Green Flag Lap shall be held in the pitlane and may start the race after the last car to take the start from the grid has passed the startline or the pitlane exit, whichever is the later.

3.6.5            Any drivers unable to start the Green Flag Lap or start are required to indicate their situation as per MSA Regulation G53 and any drivers unable to maintain grid positions on the Green Flag Lap to the extent that ALL other cars are ahead of them, may complete the Green Flag Lap but MUST remain at the rear of the last row of the grid but ahead of any cars to be started with a time delay.

3.6.6            Excessive weaving to warm up tyres – using more than 50% of the track width, and falling back in order to accelerate and practice starts is prohibited.

3.6.7            A five second board will be used to indicate that the grid is complete. The red lights will be switched on five seconds after the board is withdrawn. In the event of any starting lights failure the Starter will revert to use of the National Flag.

3.7     Race Stops

3.7.1            Any race can be stopped at the sole discretion of the Clerk of the Course by waving the Red flag at the Start/Finish line. Competitors will be warned that the race has been stopped by the simultaneous waving of the Red flag at all Flag Marshalling Posts.

3.7.2            Any race stopped before the leader has completed two laps will be declared a “No Contest” and available cars will restart from their original grid positions.

3.7.3            Any race stopped after the leader has completed more than two laps but less than 75% of its duration will be considered as the first part of a two part race. Cars will be restarted from a grid set out in the finishing order, which shall be based upon the order of crossing the finishing line at one lap less than the time of first showing the Red flag. Only cars which are under their own power at the showing of the Red flag will be classified. The result shall be declared as an aggregate of the first and second parts of the race.

3.7.4            Any race stopped after the leader has completed 75% of its duration may be considered to have finished, unless the Clerk of the Course, in consultation with the Stewards of the Meeting, deems it appropriate to restart the race. If not restarted the result will be based on the order of crossing the finish line at one lap less than at the time of the first showing of the Red flag. Only cars which are under their own power at the showing of the Red flag will be classified. If run as a two part race 3.7.3 will apply.

3.8     Re-Scrutiny

3.8.1            All vehicles reported involved in contact incidents during races or practice must be re-presented to the Scrutineers before continuing in the races or practices.

3.9     Pits and Pitlane Safety

3.9.1            Pits – Entrants must ensure that the MSA, Circuit Management and Organising Club Safety Regulations are complied with at all times.

3.9.2            Pitlane – The outer lane or lanes are to be kept unobstructed to allow safe passage of cars at all times. The onus shall be on all drivers to take all due care and drive at minimum speeds in the pitlanes.

3.9.3            Refuelling – May only be carried out in accordance with the MSA G67,68.69,70 Regulations, Circuit Management Regulations and the SRs or Final Instructions issued for each Circuit/Meeting.

3.9.4            Speed Limit in the Pit Lane will be 30mph.

3.10  Race Finishes

After taking the Chequered Flag drivers are required to : Progressively and safely slow down, remain behind any competitors ahead of them, return to the pitlane entrance/paddock entrance as instructed, comply with any directions given by Marshals or Officials and to keep the helmets on and harnesses done up while on the circuit or in the pitlane.

3.11  Results

All practice timesheets, grids, race results are to be deemed PROVISIONAL until all vehicles are released by scrutineers after post practice/race scrutineering and/or after completion of any judicial or technical procedures.

3.12 Timing Methods

All cars must be fitted with transponders complying with the requirements of MST Timing.

3.13 Qualifying Races

If applicable, details will be given in the Supplementary regulations for the Meeting.

3.14 Operation of Safety Car

3.14.1         The Safety Car will be brought into operation to neutralise a race upon the sole decision of the Clerk of the Course. The Safety Car will be driven by an experienced circuit driver (in accordance with GR B27) and will carry an observer capable of recognising all competing cars and who is in permanent radio contact with race control.

3.14.2              The Safety Car, yellow/amber lights illuminated, will normally join and exit the circuit from the pit lane and the Safety Car boards will be shown initially from the start-line. If these locations are to be varied specific written instructions and verbal briefings will be issued detailing the exact locations to be used.

3.14.3              On the order from the Clerk of the Course, the Safety Car will join the circuit with its revolving lights on, regardless of where the race leader is.

3.14.4         When the order is given to deploy the Safety Car a waved yellow flag and “SC” board will be displayed at the start finish line.  The waved yellow flags and “SC” boards will flow around the circuit in both directions, as an adjacent post displays both their waved yellow flag and “SC” board. This system may be supplemented by a message being simultaneously broadcast to all marshals’ posts if such a communication system is available.

3.14.5         Flashing yellow lights may also be used at the start-line and at other points around the circuit.

3.14.6         All competing cars, when notified of the Safety Car intervention (by the flag signals, “SC” boards, or by any other means) will reduce speed and line up behind the Safety Car, no more than 5 car lengths apart, and maintaining the same speed as it.  Overtaking or overlapping of any other competing car during a Safety Car intervention is forbidden.  Overtaking of a Safety Car is forbidden unless the particular competitor concerned is signalled to overtake the Safety Car by the observer in the Safety Car.

3.14.7         When ordered to do so by the Clerk of the Course, the observer in the Safety Car will wave past any cars between the Safety Car and the race leader. These cars will continue at reduced speed and without overtaking until they reach the line of cars behind the Safety Car.

3.14.8         While the safety car is in operation, competing cars may enter the pit lane, but may only rejoin the track when signalled to do so and not when the safety car and the line of cars following it are about to pass or are passing the pit exit.  A car re-joining the track must proceed at an appropriate speed until it reaches the end of the line of cars behind the Safety Car.

3.14.9         The Safety Car will remain in operation until at least the majority of competing cars on the circuit are lined up behind it.

3.14.10       When the Clerk of the Course calls in the Safety Car it will extinguish the yellow/amber flashing lights prior to exiting the circuit. This would normally be such that a minimum of 25% of a lap for circuits over 2 miles and 50% of a lap for circuits under 2 miles should be completed by the Safety Car with its lights extinguished.

3.14.11       Following the safety car extinguishing its lights, and prior to passing the green flag, the race leader will maintain the pace set by the Safety Car. The race leader will dictate the pace and, if necessary, fall more than five car lengths behind it.  In order to avoid the likelihood of accidents before the safety car returns to the pits, from the point at which the lights on the car are extinguished drivers must proceed at a pace which involves no erratic acceleration or braking nor any other manoeuvre which is likely to endanger other drivers or impede the restart.

3.14.12        As the Safety Car is approaching the pit entry, the green flag will be displayed at the start finish line and the “SC” board withdrawn.  Following this display of the start signal yellow flags and “SC” boards at the marshals posts will be withdrawn and be replaced with a waved green flag for one lap.  The waved green flag will flow around the circuit in both directions, as an adjacent post displays their waved green flag. This system may be supplemented by a message being simultaneously broadcast to all marshals’ posts if such a communication system is available.  Overtaking remains strictly forbidden until the start signal is passed.

3.14.13       Each lap covered while the Safety Car is in service will be counted as a race lap.

3.14.14.       Under certain circumstances the Clerk of the Course may ask the Safety Car to use the pit lane.  In this case, and provided its yellow/amber lights remain illuminated, all cars must follow it into the pit lane without overtaking.  Any car entering the pit lane under these circumstances may stop at its designated garage area.

4.        CHAMPIONSHIP RACE PENALTIES

4.1     Infringements of Technical Regulations

4.1.1            Arising from post practice scrutineering or judicial action: Minimum penalty: the provisions of MSA Regulations C(d) 36.

4.1.2            Arising from post race scrutineering or judicial action:  Minimum penalty: the provisions of MSA Regulation C(d) 39 (a) and (b). For infringements deemed to be of a more serious nature the Clerk of the Course and/or Stewards of the Meeting are to invoke the provisions of Regulation C(d) 39 (c).

    4.2 Infringements of Non-Technical MSA Regulations and the Sporting Regulations Issued for the Championship. As per 2009 MSA Judicial Procedure Regulations.

5.        TECHNICAL REGULATIONS

5.1     Introduction

5.1.1           Vehicles must comply with MSA General Technical Regulations. It should be clearly understood that if the following texts do not clearly specify that you can do it you should work on the principle that you cannot.

5.2     General Description

5.2.1            The Cockshoot Cup Championship is for Competitors participating in MG Sports Cars and A H Sprites in three classes; Class A for standard cars; Class B for road modified cars; class C for modified cars; and Class F for MGF. Cars must comply with MSA General Technical Regulations MSA Year Book Sections C and G.

5.3     Safety Requirements

5.3.1 The following paragraphs of MSA Section C (c) Safety Criteria Regulations will apply:- 2-43,44-51,52-65,69-71,72-73,75-76,77-86,87-100,101,102,103-104,105-116. Drivers side door bar connected roll cage is recommended.

5.4     Class A Standard Cars – MG Midgets and A H Sprites

5.4.1            Bodywork – Permitted Modifications – Fibreglass bonnet, wings, boot lid, one piece front; ventilation holes in bonnet and front wings up to 5% of their surface area; bumpers may be removed; carpets, trim, and passenger seat may be removed; side windows can be replaced with alternative transparent material with a minimum thickness of 5mm; competition drivers seat; rev counter relocation. Prohibited Modifications – spoilers; alteration to the body shape.

5.4.2            Engine – Permitted Modifications – Marina or Ital blocks can be used; 11 stud cylinder heads may be used; cylinder block rebore +0.060 giving maximum bore 2.84 inches (1275), 3.06 inches (1500); top face of block can be resurfaced; 1500 cc engines counterbore can be maintained at correct depth; crankshaft regrind to normal undersized bearing dimensions; maximum stroke 3.209 inches (1275), 3.452 inches (1500); chemical/heat treatment of crankshaft; removal of small amounts of metal in order (up to 5% by weight) to achieve balancing of crank; balancing of con rods, minimum weight 625 grams (including big end nuts and bolts, but not shells); chemical/heat treatment of con rods, pistons from alternative manufacturer to standard design; metal removal from inside piston skirt below gudgeon pin bosses to achieve equal piston weights; 1500 cc piston crown flat or dished, minimum deck clearance 0.015 inches; cylinder head can be gas flowed; valve springs can be of alternative manufacture; 1275 and 1500 any camshaft  with vernier cam adjustment, 1275 no limit on lift, 1500 maximum lift at pushrod 0.295 inches; reprofiling of rockers on the pad; standard rocker ratio; valve profile modified to non original; non original valves of original diameter; alternative material valve guides; metal can be removed from flywheel minimum weight 6.80 kg; flywheel can be resurfaced; alternative manufacture clutch cover and plate must bolt to original bolt and dowel holes and be of original diameter; sump can be baffled; non original rocker cover; oil pressure can be altered.

5.4.3            Engine must be located in original location using original mounting.

5.4.4            Oil cooler and fittings may be added; electric fans can be fitted; mechanical fans can be removed; heater can be removed; radiator ducting can be added; cooling systems can be replumbed; thermostat optional.

5.4.5            Induction Systems – Inlet manifold can be non original; metering needle, jet, piston, spring and damper can be changed or modified; carburettor bodies and butterflies can be modified by removing or adding metal but the diameter of the butterfly and the bore of the body must be as standard; air filters can be non original.

5.4.6            Exhaust System – Exhaust manifold and system can be non-original, must exit at the rear and conform to MSA noise regulations.

5.4.7            Ignition Systems – Ignition system must use a distributor driven by the camshaft; electronic ignition is allowed, but engine management systems using electronic circuits are not permitted; advance and retard must be by mechanical means.

5.4.8            Fuel pump may be changed to non-original in alternative location.

5.4.9            Suspension – Permitted Modifications – Front suspension spring can have any number of coils with rate being free; damper rates may be altered; anti roll bar up to a maximum of 11/16 inch using original mounting points; alternative material bushes; bump stops modified or removed; adjustable top trunnion bushes; non original top trunnions. Rear Suspension – alternative material bushes; lowering blocks; telescopic shock absorbers using any design of bracket; spring rates may be altered.

5.4.10         Transmission – Alternative design half shafts can be used; differential ratios 3.9:1, 3.7:1 and 4.2:1 are allowed.

5.4.11         Electrics – Battery can be relocated.

5.4.12         Brakes – Permitted Modifications – 1275 cc cars can use parts from 1500 cc cars; backing plates may be removed or deformed; non original lining materials; non original hoses; brake cooling ducts.

5.4.13         Wheels/Steering – Any standard Midget steel road wheel or alloy wheel 13inch diameter and maximum width 5inch and any steering wheel can be used.

5.4.14         Tyres – Must be from current or past MSA List 1a; minimum aspect ratio 60%; maximum tyre size 175/60/13.

5.4.15         Minimum Weight Limit – 1275cc cars including driver 750 kg, 1500cc cars including driver 770kg, any ballast must be attached to the floor in the passenger seat area.

5.4.16         Fuel Tank can be replaced by alternative type in any location.

5.5     Class A  -  Standard MGB

5.5.1            Bodywork – Permitted Modifications – Fibreglass front wings; Leyland ST pattern spoilers on the front and rear; ventilation holes in bonnet and wings up to 5% of their surface area; carpets, trim, and passenger seat can be removed; side window glass can be replaced with alternative transparent material with minimum thickness 5 mm; MGBGT fibreglass tailgate with perspex rear window; Sebring style headlamp covers; rubber bumper cars can be converted to chrome bumper specification; front and rear bumpers and irons can be removed. Prohibited Modification – no alteration to the bodyshape is allowed.

5.5.2            Engine – Permitted Modifications – Cylinder block rebore + 0.060 giving maximum bore 3.320 inches; top face of block can be resurfaced; crankshaft regrind to normal undersized bearing dimensions; maximum stroke 3.507 inches; chemical/heat treatment of crankshaft; removal or addition of small amounts of metal (up to 5% by weight) in order to achieve balance of crank; balancing of con rod, minimum weight old type (angle split big end) 855 grams, new type 800 grams (including bearing shells): tuftriding of rods; pistons from alternative manufacturer to standard design; metal removal from inside the piston skirt below the gudgeon pin bosses to achieve equal balance; minimum piston weight, long skirt 540 grams, short skirt 455 grams; cylinder heads can be gas flowed; minimum combustion chamber capacity 36 cc; valve seats can have inserts fitted and must be recut at 45 degrees with a minimum seat width of 3/32 inches; larger valves as fitted to later cars can be fitted to earlier cylinder heads; valve springs can be of alternate manufacture; maximum lift on free camshaft at the top of the pushrods is 0.285 inches; vernier adjustment of camshaft is permitted; standard rocker ratio; reprofiling of rockers on the pad; metal can be removed from flywheel minimum weight 8.85 kg; flywheel can be resurfaced; clutch cover and plate must bolt to original bolt and dowel holes and can be of alternative manufacture; sumps can be baffled; oil pressure can be altered; non original rocker cover.

5.5.3            Engine must be located in original location using original mounting.

5.5.4            Oil Cooler and fittings can be added; electric fans can be fitted; mechanical fans can be removed.

5.5.5            Induction Systems – Carburettor needle, jet, piston, spring, and damper can be changed or modified but the diameter of the butterfly and the bore of the body must be as standard; carburettor bodies and butterflies can be modified by removing or adding metal; air filters can be non original.

5.5.6            Exhaust System – Exhaust manifold and exhaust systems can be non-original, must exit at the rear of the car and conform with MSA noise regulations.

5.5.7            Ignition Systems – Ignition system must use a distributor driven by the camshaft; electronic ignition allowed but engine management systems using electronic circuits are not permitted; advance and retard must be by mechanical means.

5.5.8            Fuel pump may be changed to non-original and relocated.

5.5.9            Suspension – Permitted Modifications – Front suspension spring rates may be altered; anti roll bar up to a maximum of Ύ inches using original mountings; alternative material suspension bushes; modified lower wishbone arms. Prohibited Modifications – front and rear springs must have standard number of coils and leaves.

5.5.10         Transmission – No Permitted Modifications; differential ratio must be 3.9:1.

5.5.11         Electrics – No Permitted Modifications.

5.5.12         Brakes – Permitted Modifications – Back plates may be removed or deformed, non-original lining materials; alternative size rear wheel cylinders; non-original hoses; brake ducting for cooling.

5.5.13         Wheels/Steering – Any standard MGB steel road wheel or alloy wheel up to 5.5 inch width and of 14 inch diameter; any steering wheel can be used.

5.5.14         Tyres – Must be from past or present List 1a MSA; maximum tyre size is 185/60 x 14.

5.5.15         Minimum Weight Limit – Including driver 930kg

5.5.16         Fuel Tank can be replaced by alternative type in any location.

5.6     Class B Road Going Modified Cars

FIA Homologated MGBs may run in Class B, supported by and complying with the relevant papers produced to the Technical Officer. Original MGBGTV8 may run in Class B complying with standard class regulations except tyres which must comply with Class B.

5.6.1           Bodywork – As 5.7.1, but removal of windscreen, hard or soft-top, and side windows is prohibited. Side windows may be of alternative material and quarter lights may be removed.

5.6.2            Engine – Permitted Modifications – As 5.7.2, 5.7.3, 5.7.4, 5.7.5.

5.6.3            Exhaust System – As 5.7.6

5.6.4            Ignition System – as 5.7.7.

5.6.5            Fuel Pump – As 5.7.8.

5.6.6            Suspension – As 5.7.9.

5.6.7            Transmission – As 5.7.10.

5.6.8            Electrics – As 5.7.11.

5.6.9            Brakes – As 5.7.12.

5.6.10         Wheels and Steering – As 5.7.13.

5.6.11         Tyres – Any road legal tyres may be used as long as they fit onto the 6 inch rim according to manufacturer recommendations. MGB maximum tyre width is 195 section; minimum aspect ratio 60 series.

5.6.12         Minimum Weight Limits – MGB  910 Kg including driver; Midget 690 Kg including driver.

5.6.13         Fuel Tank – as 5.8.16

5.7     Class C  Modified Cars

5.7.1            Bodywork  - Modifications Permitted Glassfibre or alloy external panels conforming with the original shape of the car; alternative material doors with lateral door bars; removal of bumpers; replacement of windscreen by aeroscreen; removal of all glass; ventilation holes in bonnet or wings up to 5% of their surface area; flared wheel arches; removal of inner front wing (Midget and MGA only); replacement of dashboard; removal of carpets, trim, passenger seat; replacement of drivers seat with non original. Modifications Prohibited – removal or deformation of metal from floor pan between front and rear axles; removal of inner body panels including chassis legs and boot floor.

5.7.2            Engine – Modifications Permitted – Balancing; gas flowing; removal of metal; replacement of flywheel, pistons, con rods, valves, push rods, valve springs, rocker gear, camshaft and crankshaft with non original parts; boring to free over bore on original centres; Midget can use Ital or Marina block; MGA can use MGB cylinder block and head. Modifications Prohibited – Alteration of stroke; use of non- - original cylinder blocks and heads; dry sumping.

5.7.3            Engine must be located in original location using original mountings.

5.7.4            Oil and Water Cooling – any type of water and oil radiator can be used; electric fan can be fitted; mechanical fan can be removed; thermostat can be removed.

5.7.5            Induction System – Any carburettors and manifolds can be used.

5.7.6            Exhaust System – Any system can be used; it must run under the car, can exit at the side or the rear and must conform with MSA noise regulations.

5.7.7            Ignition Systems – Must use a distributor driven by the camshaft. Electronic ignition is allowed, but engine management systems using electronic circuits are not permitted. Advance and retard must be by mechanical means.

5.7.8            Fuel pump may be changed to non- - original in alternative location.

5.7.9            Suspension – Permitted Modifications – Front Suspension can use telescopic shock absorbers: Midget can use MGB shock absorber or fabricated top arm using the same fixing and pivot points as the standard shock absorber; the wishbone pan can be altered; all bushes can be replaced with alternative material; top trunnions can be non - original; front springs can be non - original; camber angles can be changed; anti roll bars of any dimension can be used; anti roll bar links can be non  - original. Rear Suspension – springs can be modified; additional axle locating bars added; rear anti roll bar added; rear shock absorbers can be changed to non - original and used with coil springs. Full-length rear springs must be used, functional and attached to the rear axle with U-bolts.

5.7.10         Transmission – Permitted Modifications – gears and gear ratio can be non-original, only 4 speeds with a non sequential change; bellhousing, clutch and clutch release mechanism can be non- - original; alternative design half shafts can be used; differential can be non original in original casing. Prohibited Modifications – gearbox location must be as original.

5.7.11         Electrics – Permitted Modifications – Dynamo or alternator can be removed; any type of battery in any location can be used.

5.7.12         Brakes – Permitted Modifications – Front discs, pads, calipers and hoses can be non - original; rear drums, shoes, and wheel cylinders can be non - original; brake bias systems are allowed; pedal box and master cylinders can be non - original. Prohibited Modifications – rear disc brakes and ventilated front discs.

5.7.13         Wheels/Steering – Any wheels may be used, rim widths are restricted to 6 inches; diameter must be standard or standard plus 1 inch; steering column may be shortened; any steering wheel can be used; track rod ends can be non - original.

5.7.14         Tyres – Any racing tyre may be used as long as they fit onto 6 inch rims according to manufacturer recommendations.

5.7.15         Minimum Weight Limits – including driver MGA 850 kg: MGB 850 kg; Midget 650 kg.

5.7.16         Fuel Tank can be replaced by alternative type in any location.

5.8 Class F MGF

5.8.1 Bodywork – Permitted Modifications – Alternative material front wings, headlamp transparent material, bonnet and boot, front splitter and rear spoiler, seam welding of body and sub-frames and strengthening of suspension mountings using additional metal, alternative sub frame mountings, parcel shelf removal, radio removal, carpets, trim and passenger seat can be removed, pedals can be modified, drivers seat can be replaced, replacement of hood with hardtop.

5.8.2 Engine – Permitted Modifications – Machining of cylinder head a maximum of 0.020 Inch, alternative air filter and cold air ducting, oil cooler, alternative clutch cover and plate, 52mm throttle body.

5.8.3 Exhaust System – Permitted Modifications – Exhaust system including manifold can be replaced with non-original, catalytic converter can be removed.

5.8.4 Ignition System – Permitted Modifications – MEMS2 or MEMS3 can be used.

5.8.5 Suspension – Permitted Modifications – front and rear dampers can be replaced, front and rear suspension knuckles and hydrogas pistons may be modified, front and rear hydrogas restrictor units can be used, interconnecting hyrdrogas connecting pipes can be removed, spacer may be fitted between the washer and tie bar bush on either side of the rear lower arm, suspension bushes of any material, bump stops may be modified.

5.8.6 Transmission – Permitted Modifications – Reduction of length of gear lever, replacement of ball joints with rose joints.

5.8.7 Electrics – Permitted Modification – Any battery type can be used.

5.8.8 Brakes – Permitted Modifications – Alternative brake pads and discs, alternative brake shields, ABS can be disabled, alternative hoses.

5.8.9 Wheels/Steering – Permitted Modifications – Any original equipment wheels, alternative steering wheel, alternative ratio steering rack, EPAS can be disabled by removal of fuse.

5.8.10 Tyres – Any tyres from past or present MSA List 1A or List 1B

5.8.11 Weight Limit – Minimum 1,100 kg including driver.

5.8.12 Fuel Tank – Permitted Modification – Alternative tank made of any material, relocation to boot.