MSA REGULATIONS AND SPECIFICATIONS FOR THE 2014

FORMULA GTI CLUB CHAMPIONSHIP

MSA NORTHERN REGIONS MOTORSPORT CIRCULAR NR26/14 (158818/087)

1. CONTROLLER The Controllers of the Championship are Motorsport-South Africa (hereafter referred to as MSA) which has delegated control to the MSA Northern Regions Motorsport Committee and the Formula GTi Association. The Formula GTi Association will consist of a Chairman and elected representatives.

2. AIM OF THE CHAMPIONSHIP To declare a Formula GTi Club Champion. The Championship will be awarded on the basis of the highest points scored in the Championship.

3. RULES AND REGULATIONS All qualifying races will be held under the General Competition Rules (GCR's) and Standing Supplementary Regulations (SSR's) of Motorsport South Africa (MSA), these Standing Regulations and the Supplementary Regulations issued by the Promoters. The GCR's together with the SSR's must be read and understood in addition to these regulations and specifications.

4. ELIGIBILITY OF CARS The Championship will be open to cars complying with the Northern Regions / Formula GTi issued car regulations and technical specifications of the same validity as this set of rules. Organisers may not accept any car which does not comply with these specifications.

5. TYRE RESTRICTIONS Competitors shall be limited to using ONE SET OF NEW SLICK TYRES as indicated in the technical regulations per 3 race meetings in which a competitor races. The Competitors will submit to the Formula GTi Association the serial numbers of each of their tyres when purchased new, and the association shall monitor the use of such tyres, and may apply a colour code or any other marking to the tyres in question before timed practice for easy identification. Competitors will record the serial numbers of the four tyres they intend using for a race on the scrutiny form in the MSA Scrutineering log book when presenting the car for scrutiny. A Formula GTi Association representative and / or the race scrutineers may check the serial numbers or markings the tyres on the cars at random at any time. Under no circumstances may a competitor have tyres on his car whether in practice either official or not or at any other stage which has not been recorded as being tyres he has purchased. Competitors may request a replacement tyre or tyres where a puncture or accident damage has rendered one or more of the tyres unusable. This request must be made, to the Formula GTi Committee. A replacement tyre shall be a tyre which has previously been marked or recorded and the tyre should have similar wear pattern. (A new tyre cannot replace a worn tyre). It is the responsibility of each competitor to ensure that the tyre markings remain on the tyres, as the use of unmarked tyres in competition will result in exclusion from the competition concerned. The use of tyre warmers is prohibited.

6. CHAMPIONSHIP EVENTS AND POINT SCORING 6.1 The Northern Regions Motorsport Calendar will be issued annually by MSA and gives details of all championship

event dates. All events shall be scored and no heats / races may be dropped. 6.2 There shall be two heats for Formula GTi cars at all race meetings except where an organizer has obtained special

permission from MSA to run a single race of longer duration. Each heat shall be scored as a separate race. 6.3 A Formula GTi race shall be a minimum distance of 24 kilometers, and may be longer depending on the circuit, and

the discretion of the organizers. In a case of time restrictions where the organizers reduce the race distance, full points will still be awarded.

6.4 Starting grids will be determined by actual qualifying times for the 1st heat grid and the finishing orders in the 1st heat for the 2nd heat grid. A competitor who fails to post a qualifying time due to transponder failure, and who has a manually recorded time, may on application to the designated Formula GTi race coordinator on the day, request

within 15 minutes of the posting of the grid, an amended grid and in such a case the competitor may be placed on the grid according to the manually recorded lap time. A competitor who fails to post a time in qualifying due to transponder failure and who does not have a manually recorded time or fails to post a time for any other reason will be placed at the back of the grid. An amended grid will be subject to approval by the Clerk of the Course.

6.5 Each competitor is responsible for ensuring that his / her time as stated on the qualifying results is correct. 6.6 Points for the Formula GTi Club Championship 2012 will be scored and awarded per heat, as follows:

Any competitor which finishes the race (heat) on the same lap as the leader (thus not lapped) Will be awarded 1 point.

6.7 Where only one race of longer duration is run, a proportional allocation of points would be determined for the one longer race by dividing the no of laps of the new longer race by the no of laps which would have been completed if both official programmed heats were run, and applying that fraction to double the points as indicated above if: The new race distance is agreed by a MAJORITY of competitors who will be on the grid AND such a decision is made BEFORE actual qualifying. The fraction resulting from calculation would be rounded to the next highest no e.g. 6.2 points would become 7 points. After qualifying any change to race distance in the event of only one heat being run must be agreed by UNANIMOUS vote of all competitors who will be on the grid for that race.

In the event of the organizers rearranging starting grids or grouping different race categories together due to inadequate number of competitors or to save time the results of the race will be determined by the sequence of finishing of competitors in FGTi. (Thus a competitor could finish 4

th overall but 2

nd in FGTi category for the purpose

of points allocation).

7. ELIGIBILITY OF COMPETITORS 7.1 All competitors shall be required to hold a valid competition license as issued by MSA. 7.2 Championship is open to all competitors who are a paid and accepted member of the FGTi Association. 7.3 Competitors must comply with the Technical Regulations of 2011, The New 2e FI engine or the carburetor engine. 7.4 Separation of ties. In the event of a tie at the end of the season, the competitor with the greatest number of first

places in all Formula GTi Championship races scored for that year shall be declared the Champion. If this does not resolve the tie, then the greater number of second places, failing the third places and so on, will be used to resolve the tie. If a tie still remains then MSA will declare a winner on such basis as it deems fit.

8. COMPETITION NUMBERS & SPONSORS DECALS 8.1 Competition numbers should comply to SSR 4 with the exception that the numbers must be a minimum size of

30mm x 200mm x 110mm on a contrasting background. A minimum of 3 numbers must be displayed, one facing forward on the nose of the car and one on either side of the race car on the rear wing panels to the satisfaction of the MSA technical consultant.

8.2 Sponsors decals - the Association will issue competitors with decals, which must be positioned on the car as requested, failing which a competitor may be excluded from the results of an event.

1st

2nd

20 Points 17 Points

2nd 3

rd 14 Points

4th

11 Points

5th

8 Points

6th

6 Points

7th

4 Points

8th

2 Points

9th

1 Points

Car Regulations and Technical Specifications for the Formula GTi Club Championship - 2014

1. Description 2. Chassis 3. Bodywork 4. Engine limits related to Formula GTi New Fi engine for 2011 5. Engine limits related to carburetor engine 6. Exhaust system - Applicable to Carburetor engine and new Fi engine 7. Cylinder block - related to carburetor engine 8. Cylinder head - related to carburetor engine 9. Compression ratio 10. Valves 11. Camshaft 12. Pistons and rings 13. Connecting rods 14. Crankshaft 15. Ignition system 16. Flywheel and clutch 17. Transmission 18. Suspension 19. Steering 20. Brakes 21. Wheels and tyres 22. Fuel system 23. Fuel 24. Mass 25. Safety requirements 26. Engine sealing 27. Controllers 28. Appendix1 FGTi Car Dimensions

1. DESCRIPTION 1.1 Formula type Single Seater racing cars with open coachwork complying with the table of dimensions attached and

these regulations. The engine shall be the Volkswagen Golf 1800cc and 2000cc single O.H.C. 8 valve engine as produced by Volkswagen and in accordance with the specifications herein described. No super- and turbo-charging allowed.

1.2 Imported cars will not be allowed to race in this category. 1.3 The basic tubular construction for this formula must be manufactured up to and including 1992. Wishbones and other suspension components may be of later manufacture and improved design if possible. 1.4 All parts of the car must be manufactured in South Africa, except for the following which may be imported:

gearboxes, oil coolers, carburetors, safety cells and fuel tanks, safety harnesses, body clips, gauges, rose and spherical joints, master and slave cylinders, brake calipers, steering racks and steering wheels.

1.5 Point 4 to point 15(specific engine regulations) will be used as a guideline only for the season of 2014. This due to the variety of engine parts currently in use. This is a temporary ruling to encourage Formula GTI competitors with out-of-spec engines to participate. Non-compliance of point 4 to point 15 will not disqualify a competitor.

1.6 Classes A, B and C will be determined by lap times as per the Formula GTI committee.

2. CHASSIS 2.1 The chassis shall be of tubular steel construction with no stress-bearing panels except for those panels allowed in

this article. Stress bearing panels are defined as sheet steel, aluminium; wood or composite material affixed to the frame by welding, bonding or by fasteners which have centres closer than 150 mm. All cars must incorporate an underpan of either sheet steel or aluminium which must be stress bearing and must extend from the front bulkhead to at least the rear roll hoop. This pan must also form the interior floor of the cockpit. The front bulkhead, the bulkhead behind the driver and a panel either side of the driver's shoulders maximum size 300 mm high by 400 mm wide) may also be stress bearing. No other stress bearing panels, including body panels, are permitted. An undertray is defined as a flat panel of 15mm maximum thickness manufactured from wood, fibreglass or carbon / Kevlar composite and must be attached directly below the underpan. This undertray may not be stress bearing and may not be curved where it is running under the underpan. The undertray must not exceed a maximum width of 1400mm

2.2 Chassis, wheelbase and track dimensions are given in the diagram attached to these specifications.

2.3 The internal cross-sectional area of the cockpit from the soles of the driver's feet to the rear of his seat shall be nowhere less than 700 sq. cm. and for cars built after 1 January 1989 the minimum width must be 25 cm over the whole length of the cockpit. The only intrusion permitted is the steering column.

2.4 For cars built after 1 January 1989, the driver's feet in the normal position with the pedals not depressed must be located behind a line drawn through the front wheel centers.

2.5 No engine oil or water tubes are permitted within the cockpit. 2.6 Bolt threads must protrude fully through self-locking type nuts. 2.7 The tubular chassis shall remain unchanged as per the original design. The controllers reserve the right to

authorize any changes to chassis design.

3. BODYWORK 3.1 Between the trailing edge of the complete front wheels and the leading edge of the complete rear wheels, all

sprung parts of the car visible from directly underneath it must exhibit a uniform, solid rigid and impervious surface under all circumstances, ie. there must be no freedom in the movement in relation to the body / chassis unit . The relationship must be the same at rest and in motion.

3.2 Wing assemblies must be manufactured in South Africa and must not exceed the maximum dimensions given in the attached diagram. The cheek plates for the front wings may not protrude beyond the centre line of the front axle. Rear wings must conform to the maximum dimensions given in the diagram. Gurney tabs are permitted

3.3 Any specific part of the car influencing its aerodynamic characteristics must : 3.3.1 Comply with the rules relating to bodywork 3.3.2 Be rigidly secured and must remain immobile in relation to the entirely sprung part of the car 3.3.3. No device or

component designed to bridge the gap between the sprung part of the car and the surface of the track is permitted under any circumstances. No suspension components may have an aerodynamic influence (elliptical tubing on suspension parts is allowed), and no part of the bodywork may, under any circumstances, be located below the geometrical plane formed by a line drawn from the front of the underpan to the rear of the underpan.

3.4 No form of aerofoil or spoiler may be incorporated in the design of the suspension member. 3.5 Cars will not be allowed to compete without fully affixed engine covers. 3.6 Engine covers may be modified to accommodate the air-intake for the new 2E Engine. The maximum allowed height

of the engine cover must not exceed the top of the roll-hoop.

4. ENGINE SPECIFICATIONS RELATED TO FORMULA GTI - 2012 VW 2E Long 4.1 Block Engine, as specified below.

Only modifications or additions specifically covered by these technical specifications are permitted. Engine components not covered by these specifications must remain completely standard and unmodified. Engine components shall be assembled in the standard configuration and shall comply in all respects with the VW 2lt single OHC 2E engine specifications, except for modifications listed herein.

4.2 Engine Cylinder Block Only VW mass-produced tall blocks (2e) available through recognised commercial outlets are permitted. No

aluminium blocks may be used. Sleeving of engine blocks. Engine blocks which may have been damaged may be re-sleeved in parallel to return it to

the original specifications. Localised machining of the cylinder block is permitted to allow the fitting of a dry sump lubrication system. Maximum bore size 82.65mm. The cylinder block may not be bored oversize. Cylinder block may be machined if necessary to achieve piston protrusion no higher than 1.0mm. No special coating of any kind is allowed on inside of block or sleeves. 4.3 PISTONS AND RINGS 4.4 Only single squish pad 2L tall block pistons may be used, oversize is not allowed. Minimum piston weight with rings

and gudgeon pin is 370 grams. 4.5 Pistons may not be modified in any way except to remove metal below the lowest point of the gudgeon pin position

for balancing purposes. 4.6 No total seal rings allowed. 4.7 Ring thickness must remain to standard tall block (2e) specification. CONNECTING RODS

4.8 Only VW 2L tall block parts are to be used. 4.9 Conrods may be lightened and balanced. Minimum weight: 560 grams includes bolts and nuts, excludes bearing

shells. 4.10 Standard VW or ARP bolts may be used. CRANKSHAFT 4.11 Only 92.8mm stroke crankshaft may be used. (as per standard 2e Engine) 4.12 No stroking of the crankshaft is permitted. 4.13 The crankshaft may be balanced and reground. 4.14 The crankshaft Min weight: 14 kg no tolerance. 4.15 Knife edging of webs is not allowed. Side edging thickness of Web must remain standard (casting marks must remain

visible). CYLINDER HEADS AND COMPRESSION RATIO Cylinder head

4.16 Only a 5 cam cap, 7mm valve stem cylinder head may be used. ABC type head not allowed. (Standard AGG, ADY) 4.17 Cylinder head may be skimmed to correct compression ratio. 4.18 No porting or gas flowing permitted. No material may be removed or added to the combustion chambers and ports. 4.19 Valve seats must remain standard. 4.20 Only No 3 angle seats allowed. 4.21 Valve seat angle must be at 45 degrees. 4.22 Maximum inlet seat throat diameter to be no greater than 34.8mm, and no less than 34mm measured at the

parallel section of insert. 4.23 Maximum exhaust valve seat throat diameter to be no greater than 29mm and no less than 28mm measured at the

parallel section of insert. 4.24 The throat directly under the valve seat may not be altered in any way. 4.25 No special coating of any kind is permitted on any internal part of the head. 4.26 Valves sizes max 40 mm intake and max 33.5 mm exhaust allowed. 4.27 Valves to remain standard. Valves may be replaced with commercially available Standard replacement valve of the

same dimensions. 4.28 Minimum valve stem diameter is 7mm. 4.29 Valve head must remain standard. 4.30 Valve stem may be shortened to allow for correct lifter clearance. 4.31 Valve seat only allowed to be faced at 45 degrees. 4.32 No second cuts or swirling permitted. 4.33 Minimum intake valve seat width to be no less than 2mm. 4.34 Minimum exhaust valve seat width to be no less than 2.5mm. 4.35 Only original VW lifters or standard replacement INA lifters allowed. 4.36 Lifters may be machined for valve clearance. 4.37 Lifters must remain hydraulic in all aspects. 4.38 Only standard VW single valve spring may be used. 4.39 No shimming allowed altering valve spring tension. 4.40 Maximum compression ratio 10.7:1 CAMSHAFTS

The camshaft shall comply with the following specifications: 4.41 Valve Lift 11,7 mm. 4.42 Intake and exhaust duration 288 degrees. 4.43 Lobe Separation 110 degrees. 4.44 Timing Figures 34/74/74/34. 4.45 An adjustable cam sprocket may be fitted.

FUEL INJECTION & IGNITION SYSTEM

4.46 Dictator Fuel management must be used with a pre-programmed and locked map as supplied by 8 Valve Performance only, which cannot be changed in any way.

4.47 Fuel rail may be changed. 4.48 Standard ADY/AGG 180cc injectors to be used. 4.49 Fuel pressure regulator to remain standard VW 3 bar regulator. 4.50 High Pressure Fuel Pump - Bosch 6 Bar unit.

4.51 A "swirl pot" as specified by 8 Valve Performance may be used to prevent - fuel surge -, and may not be modified, covered, or packed with Dry Ice.

4.52 Only the Standard Distributor and Rotor as Supplied by 8 Valve performance may be used. Air Induction

4.55 Only standard ADY/AGG and 2E intake manifold, throttle body and injectors allowed. 4.56 Intake tube diameter 76mm 4.57 Cone type filter to be fitted.

5. ENGINE LIMITS RELATED TO FORMULA GTi - CARBURETOR ENGINE 5.1 Only modifications or additions specifically covered by these technical specifications are permitted. Engine

components not covered by these specifications must remain completely standard and unmodified. 5.2 Engine components shall be assembled in the standard configuration and shall comply in all respects with the VW

2,0 single OHC GTi engine specifications, except for modifications listed herein. 5.3 In the interest of reduced cost to competitors standard replacement components available from other suppliers,

ie valves, crankshaft, distributors etc are allowed. No exotic components or materials are allowed under any circumstances.

5.4 The engine shall be the VW SOHC 8 valve unit without fuel injection. The engine will be mounted upright and aligned for and aft (longitudinally) in the chassis, driving the rear wheels through a clutch, 4 speed gearbox and a differential.

5.5 The addition of any material, be it metal, plastic or composite, etc., by any means be it welding, bonding, encapsulation coating or encasement of any components is prohibited.

5.6 Balancing of reciprocating parts and rotating components is permitted only as described for each item in these specifications.

5.7 Water pump, fan and alternator pulleys and their retention bolts, washers and drive belts are free of restrictions. 5.8 Mechanical tachometer drives may be fitted. 5.9 The use of non-standard nuts, bolts, screws, studs, washers and drive belts is permitted. 5.10 Thread locking compounds may be used. 5.11 Gaskets are free except for the cylinder head gasket which must be manufactured from steel and thus not be

compressible. The thickness of the gasket plays an important role in the overall compression ratio of the engine. 5.12 Oil sump drain plugs and oil filter canisters must be wired or clamped to prevent accidental loosening. 5.13 Any component cleaning process may be used providing the standard surface finishing of the components remain

unchanged, except where otherwise provided for in these specifications. 5.14 The crankcase breather may be altered or removed, but all breather systems must discharge into a translucent

catch tank of not less than 1 litre capacity. This catch tank must be empty at the start of practice or a race. Induction system (Carburetor engine)

5.15 Air boxes and a cone filter shall be fitted to all cars. The engine may not breathe any air except via a quality air filter permanently fixed.

5.16 Only Weber (40 mm) side draught carburetors with a butterfly diameter of 40 mm may be used. Slide throttles are prohibited.

5.17 Jets are free 5.18 Choke - tubes must be maximum 36 mm inner diameter. Emulsion tubes must be standard Weber F9 or F11

replacement parts. 5.19 Reworking of throttle plates, shafts and auxiliary venturis is permitted. 5.20 Inlet manifolds are free of restriction. However each competitor must prove upon request that his manifold is

readily available also to other competitors. No special "high cost" manifolds are allowed. Manifolds must be cast or machined from Alluminium.

5.21 A spacer may be fitted between the carburetors' and the inlet manifold to permit the use of double O-rings, or 19mm thick rubber mountings.

6.1 EXHAUST SYSTEM (Applicable to Carburetor engine and new Fi engine) 6.2 A 4 into 1 or a 4 into 2 into 1 system may be used. 6.3 The use or fitment of an exhaust gas analyzer (lambda sensor) during qualifying or a race is prohibited. The entire

exhaust system shall remain free of any holes, plugs or attachments. The exhaust may have a threaded plug hole for insertion of Lambda sensor for test and jetting purposes but this must be closed and the sensor removed for racing or qualifying.

6.4 Exhaust may be manufactured from steel or stainless steel. Exotic materials are not allowed.

7 CYLINDER BLOCK (Carburetor engine) 7.1 The cylinder block must be a VW block. 7.2 Max bore limit: 82, 65 mm 7.3 Localized machining of the cylinder block is permitted to allow for the fitting of a dry sump lubrication system. 7.4 The cylinder block may be machined if necessary to achieve the specific compression ratio (see also 13.1). 7.5 The cylinder block by not be bored oversize. 7.6 The cylinder block may be re-sleeved in order to re-use an excessively worn block. 7.7 No special coating of any kind is allowed on the insides of the block or sleeves.

8 CYLINDER HEAD (Carburetor engine) 8.1 The cylinder head must be a standard 8 Valve in line VW Golf head. This would include the Fuel Injection head or the

Carburetor head as manufactured by VW either in Germany, RSA, Mexico or Brazil. 8.2 No polishing of ports or combustion chambers is allowed. No material may be added or removed in the combustion

chamber. 8.3 Damage or worn valve guides may be re-bushed with "K" liners or replaced by new guides to standard dimensions.

Stainless steel or hi-grade valve seat inserts to standard dimensions may be substituted. Valve seats may be cut and must incorporate the standard 45 degree seat angle. The lead off and the lead on angles may be altered.

8.4 Maximum inlet valve seat insert throat diameter to be no greater than 34,2 mm, and no less than 33,8 mm measured at the parallel section of the insert. Maximum exhaust valve seat insert diameter to be no greater than 27,8 mm diameter measured at the parallel section of the insert.

8.5 The location of the exhaust and inlet port bolt holes may not be altered. 8.6 The cylinder head face may not be skimmed at an angle. 8.7 The plugging of injector holes is permitted. 8.8 The "Polo" head part no designation ABC is illegal. This head is identified by the fact that injector holes are in the

inlet manifold and protrude through into the inlet surface of the head. 8.9 The "throat" directly underneath the valve seat insert may be cleaned by cutting to the exact same size as the valve

seat insert diameter (ie 34.2 and 27.8 mm respectively). This is to alleviate the problem where some heads do have a reduced throat diameter thus reducing the power output. This cut must be made at exactly 90 deg angle to the valve seat (exact concentric around the line connecting the center of the valve stem and the center of the valve seat.)

8.10 No special coating of any kind is permitted on any internal part of the head.

9 COMPRESSION RATION (Carburetor engine) 9.1 The compression ratio is determined by the amount the head is skimmed or the piston tops as dressed. Both pistons

tops and head may be skimmed to get to the required compression ratio. It is recommended for 95 octane fuel at altitude to have a compression ratio not exceeding 10.9 for better engine longevity.

9.2 Maximum compression ratio = 11:1 (+2%) calculated as follows: A = Piston Volume at TDC (Determined by measuring The actual piston bore is to be column with piston 2 mm down from TDC) used for calculations.

3

3 Typical volume measured by column 21.13 cm Subtract volume of 2 mm of bore 10,691 cm

A = Piston volume at TDC 10.44 cm3

B = Steel Head Gasket Volume 9.09 cm3

C = Cylinder head volume 30.1 cm3

S = Swept Volume 496.07 cm3

CR = Compression Ratio: (A+B+C+S) 11.1 (A+B+C)

9.3 The cylinder head height when measured from the centre of the 12 mm diameter locating holes on the manifold side must be not less than 110,8 mm.

10 VALVES (Carburetor engine) 10.1 Valves must remain standard in all respects. Re-profiling, polishing or alteration of the seat angle (45 deg) is

not permitted. 10.1.1 Inlet valve head diameter = Max 40 mm, min 39,5 mm

10.1.2 Exhaust valve head diameter = 33 mm (±0,1 mm) 10.2 The valve stems may be shortened at the cotter end in order to provide the required hydraulic lifter free play. 10.3 The valve stem may be lengthened by special welding in order to set valve clearance to minimum 0,2 inlet and

0,3 exhaust.

11 CAMSHAFT (Carburetor engine) 11.1 The camshaft shall comply with the following specifications:

Valve Lift 11,7 mm Intake and exhaust duration 288 degrees Lobe Separation 110 degrees Timing Figures 34/74/74/34

11.2 The cam followers may not be modified in any respect. 11.3 An adjustable cam sprocket may be fitted. 11.4 Valve spring spacers are allowed where necessary to compensate for valve seat refacing and the consequent

slack fit of the valve spring. Valve springs must comply with the following specification: OD inner spring 20,9 mm OD outer spring 30,2 mm Wire thickness inner 2,5 mm Wire thickness outer 3,6 mm Free length (max) inner 34 mm Free length (max) outer 40 mm

11.5 Non-standard camshaft covers are permitted.

12 PISTONS AND RINGS Pistons and rings (Carburetor engine) 12.1 Pistons may not be made from exotic materials. 12.2 Pistons must have the original VW appearance being flat top with bowl and squish band. 12.3 For best power output and engine reliability the following is recommended: 12.3.1 Piston stickout above engine block maximum 0.8mm to prevent piston from contacting cylinder head at high rpm. 12.3.2 Squish band to remain at least 1 mm above piston flat top ensuring proper swirl and mixture for improved power

output. 12.3.3 Care to be taken in reducing piston height or increasing bowl depth to prevent piston failure. 12.4 The piston with gudgeon pin and circlips to have a minimum mass of 0,380 kg.

2 compression rings of one-piece single homogeneous material having plain gaps must be used. The oil control ring must be either a single piece twin land type, or an apex three piece type having 2 rails and an expander.

12.5 Ceramic or centre coating rings are prohibited. 12.6 No special coating ceramic or otherwise of piston is allowed.

13 CONNECTING RODS (Carburetor engine) 13.1 Connecting rods may not be from exotic materials. 13.2 Connecting rods may be balanced. 13.3 Tuftriding, parkersing, shot-peening and shot-blasting are permitted.

The minimum mass of one connecting rod complete with bearing caps, bolts, nuts and washers, but without big end bearings is to be 0,570kg.

13.4 No external polishing is permitted 13.5 Centre to centre length 144,0 mm.

14 CRANKSHAFT (Carburetor engine) 14.1 Must be standard VW Motorsport steel crank, part no RSU 105 101 C if available or the Goldwagen 2 litre crank part

noVB024, or the "Goldwagen (Brazilian) type. Tuftriding, parkerisering and or shot- peening are permitted and spot machining to achieve balance may be carried out.

14.2 The crankshaft may not be modified or machined in any way except for regrinding of bearing journals or minimum material removal for balancing.

14.3 The width of the bearings cannot be altered, but standard oversize or undersize bearings may be fitted. Ceramic main and big end bearings are not permitted.

15 IGNITION SYSTEM (Carburetor engine) 15.1 The standard black box electronic ignition from VW or Huco may be used. This electronic ignition may have no

advance Only the standard VW GTi distributor, part no RSU 905 205 AK or the Goldwagen or the Golf3 fixed distributor may be used.

15.2 Curves built into the electronics.

15.3 Vacuum advance units may be removed and the base plate may be locked.

15.4 Advanced curves may be altered mechanically only (ie internal to the distributor)

15.5 A standard 12V coil readily available from any spares outlet may be used.

15.6 The ignition timing may only be varied by vacuum and/or mechanical means. It is prohibited to use any other method or components to trigger or time the ignition.

15.7 Alternatively, distributor RSU 905 205 J, or the Goldwagen equivalent, both of which are of the locked (fixed timing) type, can be used.

16 FLYWHEEL AND CLUTCH (Carburetor and new Fi engine) 16.1 The flywheel may be specially manufactured in steel or aluminium. The clutch assembly and bell housing is free,

except that exotic materials (magnesium castings) may not be used.

17 TRANSMISSION 17.1 4 speed Hewland transmission (gearbox and differential) as manufactured by Hewland Engineering, with a reverse

gear capable of operation by the driver seated normally in the car. Gear ratios are free, except for the first gear, which shall have a ratio of no longer than 13/37.

17.2 The ratio of the final drive to the rear wheels is free.

17.3 Torque bias, limited slip and locked differentials are not permitted in any form whatsoever, even if set up as a free differential.

17.4 The gearbox shall be vented to the catch tank fitted for crankcase ventilation, or a separate catch tank may be fitted in addition.

17.5 Gear ratios and final drive components may be blue-printed and/or lightened.

18 SUSPENSION 18.1 Independent by coil spring and tubular shock absorbers. The latter are free of restriction except that they may not

be cockpit controlled.

19 STEERING 19.1 Free of restriction except that Titanium parts may not be used.

20 BRAKES 20.1 Four wheel hydraulic with independent circuits for front and rear. The friction material is unrestricted. The discs

must be cast iron or steel. A single piston, floating cast iron or steel caliper or twin piston, cast iron or steel fixed caliper is the only units permitted.

21 WHEELS AND TYRES Existing 4-stud Compomotive Wheels - widened or 4-stud wheels supplied by WAW and widened, to within the spec below. Any other brands must meet the specs below.

21.1 Front:

Diameter 13 inch specific not bigger and not smaller Minimum Weight 5kg Width 8 inch maximum between flanges Offset Wheel spacers may be used to avoid contact between wheel and brake

calipers but at no time may spacers cause the total track to exceed the dimension specification.

21.2 Rear:

Diameter 13 inch specific not bigger and not smaller Minimum Weight 5kg Width 10 inch maximum between flanges Offset Wheel spacers may be used to avoid contact between wheel and brake

calipers but at no time may spacers cause the total track to exceed the dimension specifications.

21.3 Tyres are as approved by the Controllers and must be Racing Slick tyres

21.4 Wet tyres are as approved by the Controllers and must be Racing wet tyres

21.5 Tyres must be used in their standard manufactured configuration and may not be modified or defaced in any way.

22 FUEL SYSTEM 22.1 Tanks fitted outside the chassis shall comply with FIA Specifications F.T. 3

22.2 Inboard metal tanks shall be covered with a fireproof coating approved by the Controllers.

22.3 It is highly recommended in the interest of your own safety to fit a bladder type fuel tank which is allowed under these rules.

23 FUEL 23.1 Refer to GCR 240.

23.2 No additives or gas of any kind may be added to fuel

23.3 Only "Unleaded Pump Fuel may be used" - 95 RON

24 MASS 24.1 Minimum 550kg including car and driver at the finish of a race or at any time during official practice. Any ballast

carried shall be permanently attached by welding, brazing or riveting, failing which it will not be recognized as ballast.

25 SAFETY REQUIREMENTS 25.1 Fire extinguishers - minimum capacity 1kg. hand operated, fitted within reach of the driver strapped in the seat of

the car. Alternatively, a remote controlled extinguisher may be fitted. If the extinguisher is not fitted with a pressure gauge, evidence must be available that the extinguisher had been purchased or serviced within the preceding 6 months.

25.2 Roll over bars - to be constructed in accordance with the regulation as set out in the FIA Year Book. A copy thereof is available from MSA. Please refer also to dimensions.

25.3 Safety belts - a full 6 point harness is mandatory. The expiry date on seat belts shall not be exceeded to prevent disqualification during scrutineering.

25.4 Circuit breaker - an electrical circuit breaker must be fitted in one of the main battery leads, capable of operation either by the driver normally seated in the car with harness secured, or by a person from the outside of the car. The position of the switch shall be indicated on the outside of the body by a recognized spark symbol.

25.5 Red or Yellow Warning Lights - a rear facing warning light must be located within 10 cm of the centre line of the vehicle and be clearly visible from the rear. This warning light must be ON when visibility conditions are reduced or when so instructed by the Clerk of the Course.

25.6 Only certified welding will be allowed on chassis and suspension. Any modifications whatsoever on chassis and suspension must be submitted for approval by the technical committee.

25.7 Technical and safety will be compulsory before the start of the season. Date and venue will be discussed at an official meeting.

26 CONTROLLER 26.1 Northern Regions Motorsport shall have over riding authority in respect of all aspects of the Formula GTi Regional

Championship. The Formula GTi Association shall be responsible for the normal administration of the series, subject to the aforementioned.

26.2 The controllers have the right to revise or issue an interpretation of these regulations at any time. Any such revised interpretation will be published in an official MSA circular or bulletin

27. APPENDIX FGTi CAR DIMENSIONS

A 800 mm maximum rear overhang from rear wheel axis B 1000 mm maximum front overhang from front wheel axis C 900 mm maximum height measured from the ground D 550 mm maximum body height in front of front wheels - at front wheel rim height E 920 mm minimum safety roll over bar, length in line with driver's spine F 50 mm minimum clearance between top of roll over bar and top of helmet G 1850 mm maximum overall width H 950 mm maximum rear aerofoil including cheek plates I 1200 mm maximum body width behind front wheels J 1400 mm maximum front aerofoil including cheek plates K 450 mm minimum cockpit opening L 300 mm minimum cockpit parallel opening length M 600 mm minimum cockpit overall opening length N see 22.1 maximum wheel width O 2000 mm minimum wheelbase P 1200 mm minimum track Qmax 900 mm rear wing height measured from ground max Qmin 600 mm rear wing height measured from ground min R 420 mm maximum front wing width