REGULATIONS

5.3.1 All vehicles must comply with the MSA Appendix K Safety Criteria

5.3.2 Interior fittings, trim and bodywork may be locally modified to allow fitting of the roll cage and door

bars.

5.4.1 All vehicles must comply with MSA General Technical Regulations and the relevant parts of sections J & Q of the MSA Yearbook except where specified below.

5.4.2 Vehicles may be brought up to any series production specifications for that model prior to 1st January 1983. For the avoidance of doubt, 'model' shall mean a vehicle of the same bodyshell shape, size, specification and silhouette.

5.4.3 Any component listed on the MSA, FIA/FISA (or national equivalent for foreign cars) homologation papers for use in Group One during the series production of that model may be substituted for the original production component provided that the substitute part was in production or homologated

prior to 1st January 1983. The responsibility to prove eligibility is that of the entrant at all times

5.4.4 No component may be substituted which serves to alter the shape or size of the bodyshell and/or panels themselves or increases the capacity of the engine beyond that which was in production or homologated prior to 1st January 1983. Optional equipment is to be submitted to the CTCRC committee for possible inclusion on a vehicle by vehicle basis.

5.4.5 Nuts, bolts, washers and locking devices are free.

5.4.6 Where these regulations call for original components or pattern parts these must be to the manufacturer’s original specifications for that model as catalogued by the manufacturer or importer prior to 1st January 1983.

5.4.7 Advertising on vehicles is subject to requirements set out in MSA Yearbook Regulation H29.1.2 & H29.1.3.

5.4.8 Competitors registering do so in the full knowledge that CTCRC reserves the right to require the Eligibility Scrutineer to carry out, record and enforce eligibility checks which may include the sealing of component(s) for subsequent checking. The costs of such checking shall be borne by the CTCRC but the CTCRC shall not be liable for the costs of stripping or reassembly of vehicles after the checks have been carried out.

5.5.1 Chassis and chassis members must remain as originally manufactured and lightening or reducing of chassis or chassis member strength is prohibited.

5.5.2 Addition of material to strengthen the chassis is permitted

5.5.3 Seam welding is permitted.

5.6.1.1 Bodywork must be complete and standard in material, shapeand thickness on all exterior surfaces with the exception of the bonnet,front wings,bumpers, noseconeand bootlid and boot spoilers; these items may be replaced with fibreglass replicas of standard shape and must be fitted such that the original part could be refitted without modification. Where original materials are unobtainable, local repairs of adequate strength may be made using modern equivalents but replacement of panels with non-original material is prohibited. It is only permitted to make holes in panels for the passage of cables, fuel, water, oil, hydraulic, instrument or fire extinguisher lines.

• Rover P6 may use the export model Federal bonnet.

• Vauxhall Firenza may use Droopsnoot front.

• Mini Clubman may use wing extension kit part number C-AJJ3316

• Jaguar XJS may use later style bodykit

5.6.1.2 Interior

a) Floor carpets, under felt, sound deadening, headlining, front and rear parcel shelves, centre consoles, the front passenger and rear seats and trim in the boot/luggage compartment may be removed.

b) All internal panels and sub-assemblies must remain as originally manufactured. Strengthening is permitted.

c) Battery trays and their supports may be removed..The dashboard must be retained in original material

d) Instrumentation is free.

e) The interior door trim must be retained in original or other non-flammable material.

f) Window operating controls may be removed. If window operating controls are retained it is permissible to change electrically operated windows to manual winding operation.

g) Driver’s seat is free subject to MSA requirements. The driver must be located entirely to one side of the centre line of the car. Local modifications are permitted for the purposes of secure and safe mounting.

h) Foot controls and their linkages are free except that the foot operated surface of the brake pedal must be located no more than 4” (100mm) forward or rearward of the original production position.

i) Heaters and interior ventilation systems may be removed.

5.6.1.3 Exterior

a) Reworking or modification to exterior bodywork is prohibited but any part of the arch/wing pressing folded into the wheel arch may be deformed, but not removed, to give clearance to the tyres. Light lenses are to remain as in production.

b) The original boot and bonnet fasteners may be removed but the bonnet and boot shut lines must be as in production.

c) External trim must be retained except that bumpers may be removed provided that in the event of their removal all supporting devices and brackets as would otherwise protrude beyond the bodywork are also removed.

d) Radiator grill slats must not be removed unless they are less than 1” apart, if so alternate slats may be removed.

e) Window material for side and rear windows is free subject to prevailing MSA regulations. All original window mounting hardware (i.e. mounting rubbers, sliders, guides, quarter-lights and other externally visible features) must be retained.

f) The original mirrors may be removed but vehicles must be fitted with at least one externally mounted rear view mirror in accordance with MSA Yearbook section Q19.15.1 and at least one interior mirror. The fitment of a wide angle interior rear view mirror is recommended.

5.6.1.4 Bodywork must be complete and standard in shape and silhouette. Any item below the centreline of the wheel must not project beyond a line drawn at 45 degrees to the horizontal and tangential to the bodywork (not including over-riders).

5.6.1.5 Forward facing fog lights mounted in, or under, the front bumper may be removed. Internal bodywork or trim behind the original fog light locations may be modified solely to allow the fitment of ducting from the original fog light locations to the front brake discs. The cross-sectional area of the ducting to each front brake disc must not exceed 50cm2.

5.6.1.6 Minimum ground clearance without driver is 100mm (4”) excluding exhausts and silencers.

• Jaguar XJ series and Lotus Cortina Mk2 do not have to achieve the required ground clearance at the outer ends of the lower front suspension arms.

5.7.2 The original standard production cylinder block may be used or an alternative manufactured by the same manufacturer to the original production specification including but not limited to material, bore, number of main bearings and number of main bearing fasteners must be used and may be re-bored up

to a maximum of plus 0.065".

• Rover SD1 may use cross-bolted block.

5.7.3 The cylinder head(s) must be the standard production component or an alternative manufactured by the same manufacturer as the original production component to the original production specification including but not limited to material, number of valves, ports and plugs, same plug angle, valve angle/port configuration and operating type and fixes directly onto the original standard production cylinder block without modification.

5.7.4 It is permissible to remove metal from original cylinder blocks and heads.

5.7.5 The crankshaft is free, but the original stroke and number of bearings must be retained.

5.7.6 Camshafts, camshaft bearings and drive systems are free, provided that they remain in their original positions and remain the sole means of operating the valves.

5.7.7 Only the original production type of induction must be used.

5.7.8 Carburettors are free within the limitation that the total number of chokes must not exceed the maximum number of chokes fitted in production or homologated for Appendix 'J' Group One.

5.7.9 Motorcycle carburettors are not permitted.

5.7.10 Inlet trumpets are not permitted to have automatically controlled adjustment.

5.7.11 Fuel injection is only permitted if fitted in production or homologated in Appendix ‘J’ Group 1 prior to 1st January 1983 and must employ the original, production method of triggering and operation. The original plenum chamber must be retained intact but the entry duct and/or flange may be variously;

a) enlarged in cross section area, associated throttle valve(s) being free except for the original number being maintained,

b) extended upstream by the addition of metal and/or separate trunking not extending beyond the periphery of the bodywork,

c) reduced in length by removal metal upstream (not downstream) of the original entry to the main plenum chamber or entry to the first branch pipe, whichever is the further upstream.

5.7.12 Air filter and airbox may be removed, modified or replaced and air ducting/trunking is free providing it does not extend beyond the periphery of the bodywork. A single round hole with the diameter no greater than 102mm or two round holes with diameters no greater than 77mm may be made in the

radiator support panel for induction air ducting/trunking to pass through. Anti surge pipes are permitted as also are return pipes from the carburettor/injection system.

5.7.13 Inlet and exhaust manifolds are free.

5.7.14 Radiators are free but must remain in their original location.

5.7.15 Oil coolers and additional water radiators are permitted provided they are located within the periphery of the bodywork.

5.7.16 The exhaust system is free subject to MSA requirements.

5.7.17 Dry sump oil systems are prohibited.

5.7.18 The distributor may be fitted with an after-market spark triggering device but the distributor must remain in its original position and must maintain its original function. Any additional system which processes information acquired from the ambient conditions and/or the engine is not permitted. The distributor must be the only means of determining ignition advance and retard and must continue to distribute the high tension spark. The firing order must not be changed. The remainder of the ignition system is free.

• Rover SD1 may use a DTA spark control device triggered using a hall effect trigger in the distributor but over 3,000 rpm there must be no advance curve i.e. the amount of advance must be constant at all times over 3,000rpm. For scrutineering purposes a connection lead suitable for connection to a laptop computer must be fitted at all times.

5.7.19 Forced induction is not permitted unless either fitted in production or homologated in F.I.A. Appendix 'J' Group One before 1st January 1983. Cars using forced induction will be subject to an equivalency factor of 1.4:1. Boost pressure must not be adjustable from within the habitacle. When fitting of a

turbocharger is permitted by these regulations it shall be the standard production or homologated component and must not be modified. The boost pressure setting is free.

5.7.20 Rotary engined cars. The induction timing is free and therefore the dimension of the induction port which controls its opening and closing point may be modified by removal and addition of material. In all other respects the port must remain as homologated. The engine capacity will be determined by using

an equivalency factor of 2:1

5.7.21 All other engine components are free.

5.7.22 To allow for scrutineer’s wire seals, every installed engine must have 1.6mm (1/16in) holes drilled in at least two adjacent sump bolts and two adjacent rocker/cam cover bolts. Engines may be sealed at any time by a Licensed Eligibility Scrutineer and only by written permission in advance from the CTCRC

Committee or a Licensed Eligibility Scrutineer may seals be broken.

Macpherson strut top mounts and spring caps are free.

5.8.2 Dampers are free providing the original operating principle (hydraulic, friction, lever or telescopic) is retained and no more than the original number are employed. They must be mounted on the original mounting points. Telescopic dampers may be converted to coil-overs. Redundant coil springs may be

removed.

5.8.3 Anti roll bars and their mountings and shape and material are free providing they fit directly on to the original body/chassis mounting points and the mobile suspension units. Additional anti roll bars, antitramp bars, panhard rods, watts linkages, lowering blocks and their mountings may be added.

5.8.4 Track Control Arms may be locally modified solely for the purpose of adjusting length and this may be achieved by use of a track rod end joint at one end of the TCA.

5.8.5 Suspension bushes are free providing the original production bush can be replaced in its original position without modification to the bush housing. It is permitted to machine circlip retaining grooves to locate suspension bushes. Suspension bushes may be replaced with spherical bearings.

5.8.6 The original suspension mounting points are to be used without modification, but may be strengthened.

5.8.7 All other suspension components must be to the manufacturer’s original specification and must be employed in their original positions but may be strengthened.

5.9.1 Vehicles must use either the original production type of gearbox or a homologated alternative and this must remain in the original position. No more than four forward ratios are permitted unless supplied as original equipment. Cars originally produced with no manual gearbox option may use any 4-speed

manual gearbox from the period. An additional overdrive gearbox may be fitted.

5.9.2 Gear levers and gearshift mechanisms are free but must employ the original method of operation, shift pattern and bodyshell aperture.

• Mazda RX3, RX4 and RX7 may use a Ford type 9 Gearbox with iron case.

• Jaguar XJ12 may use a Getrag 5 speed manual gearbox from the period with only 4 gears operational or a 4 speed manual gearbox from any other production Jaguar, of, or prior to the period.

• Rover P6B may use a Rover SDI 4 speed gearbox.

• Avenger may use a Ford Type E “Rocket” gearbox with iron case

5.9.3 Drive shafts and propshafts are free but may only be made of metallic material.

5.9.4 Mechanical limited slip or torque biasing differentials are permitted.

5.9.5 Gearboxes and transaxles with rapidly interchangeable ratios or proprietary racing gearboxes are prohibited. Sequential gearboxes and/or traction control devices are prohibited.

5.9.6 The rear axle must remain in its original position.The rear axle casing must be the original standard production component but may be locally modified. Where a differential casing is removable from an axle casing the differential casing must be regarded as part of the original axle casing and is covered by the same technical regulations.

5.9.7 Gear ratios and type are free

5.9.8 The final drive ratio is free.

5.9.9 Vauxhall Firenza, Vauxhall Magnum and Hillman Avenger may use a Ford English axle but the axle casing must be modified to pick up the recipient vehicle’s standard suspension location mounts.

5.9.10 3rd Generation Chevrolet Camaro may use an aftermarket Torque Arm on the rear axle instead of the production item.

5.10.1 Electrical equipment is free provided that a generator, battery and starter are fitted and in full working order at all times.

5.10.2 Headlights, tail lights, stop lights, high intensity rear light and windscreen wiper must be fitted and in full working order. It is permitted to add clear protective headlight covers.

5.11.1 Brake systems are free save that carbon discs and ABS systems are prohibited. Ducting for the purpose of cooling brakes or removing dust is permitted provided it is not visible outside the car and serves no other purpose and if beneath the car does not project beyond a line drawn at 45 degrees to the

horizontal and tangential to the bodywork (not including over-riders).

Modification or removal of brake back plates is permitted.

5.11.2 Cars with single circuit braking must be fitted with an operational hand brake. Cars fitted with dual circuit braking are not required to have a handbrake fitted.

5.11.3 Brake lights must be operational and operated only by the brake pedal without a delay. The high intensity rear light must not be operated by the brake pedal.

5.12.1 Steering wheels and steering columns are free.

5.12.2 Hubs are free.

5.12.3 Road wheels must be of original diameter and must be fastened by the original number of studs/bolts.

Wheel material is free. Split rims are prohibited.

5.12.4 Maximum permitted rim widths are:

Class A 8.0”

Class B 7.0”

Class C 6.5”

Class D 6.0”

Class E 5.5”

Class F 5.0”

• BMW CSL and Rover P6 may use 15” diameter wheels

• Jaguar XJ6/12 may use 16" wheels but there must be no brake rotor or caliper size increase beyond which a 15” wheel cannot be fitted. It is the responsibility of the competitor to ensure a 15” wheel is available at all events for eligibility testing

5.13.1 Tyres must be listed by the tyre manufacturer as medium, or harder, for saloon car circuit applications.

Soft compounds are not permitted

5.13.2 Tyres must have an aspect ratio (profile) of 50% or greater.

5.13.3 No modification to tread pattern or tread depth by cutting is allowed.

5.13.4 The only permitted tyres are:-

Dunlop Formula R D01J

Dunlop Direzza 02G

Dunlop Direzza 03G

Toyo Proxes R888

Toyo Proxes R1R

Kumho ECSTA V700

Yokohama A048-R

Yokohama A032-R

Dunlop D84J, D83J, D93J (D93J in 10” diameter only).

5.13.5 For the purpose of clarification these tyres are MSA List 1B and therefore MSA List 1A regulations relating to wear bars and tread depth do not apply. Tyres listed in the MSA List 1A are also permitted

5.14.1 These are true minimum weights with no tolerance and all cars must comply at all times including the driver, normally seated with racing overalls and helmet. Ballast is permitted to achieve these minimum weights but weight may only be removed within the limits of the modifications detailed within these regulations. Ballast must be securely attached within the habitacle and attachment bolts predrilled for the purpose of attaching scrutineers wire seals. The total weight of ballast carried, must be declared and be in position at all times during practice and racing.

5.14.2 Minimum weights by production capacity (not homologated capacity) after applying equivalency factor not exceeding:

1000cc 745kg     3600cc 1221kg

1100cc 765kg     3700cc 1237kg

1200cc 785kg     3800cc 1253kg

1300cc 805kg     3900cc 1269kg

1400cc 825kg     4000cc 1285kg

1500cc 845kg     4100cc 1299kg

1600cc 865kg     4200cc 1313kg

1700cc 885kg     4300cc 1327kg

1800cc 905kg     4400cc 1341kg

1900cc 925kg     4500cc 1355kg

2000cc 945kg     4600cc 1369kg

2100cc 964kg     4700cc 1383kg

2200cc 983kg     4800cc 1397kg

2300cc 1002kg   4900cc 1411kg

2400cc 1021kg   5000cc 1425kg

2500cc 1040kg   5100cc 1439kg

2600cc 1057kg   5200cc 1449kg

2700cc 1074kg   5300cc 1461kg

2800cc 1091kg   5400cc 1473kg

2900cc 1108kg   5500cc 1485kg

3000cc 1125kg   5600cc 1497kg

3100cc 1141kg   5700cc 1509kg

3200cc 1157kg   5800cc 1521kg

3300cc 1173kg   5900cc 1533kg

3400cc 1189kg   6000cc 1545kg

3500cc 1205kg

5.14.3 Engine capacities exceeding 6000cc:- add 10kg per 100cc. Therefore 7000cc minimum weight = 1645kg

5.14.4 All cars must comply with these championship weight limits irrespective of the year of manufacture and any other championship regulations or waivers.

• 1275cc British Leyland Mini's are to run at or above the minimum homologated weight of the Mini 1275GT

5.15.1 Only ‘Pump’ fuel as defined by the MSA yearbook is allowed. An MSA approved additive is permitted.

5.15.2 Fuel pumps and fuel tanks are free subject to MSA requirements.

5.15.3 Hatchback cars with under-floor spare wheel well may remove the spare wheel well for the sole purpose of the fitting of a fuel tank under the boot floor. A steel plate of at least the thickness of the metal removed must cover the aperture remaining.

5.16.1 Silencers are free. Silencing must comply with MSA Yearbook Regulation J5.17 & J5.18.

5.17.1 Only competition numbers allocated by the CTCRC Registrar are to be displayed. They must be displayed in accordance with MSA regulation J4 and remain as allocated until the end of the season.

5.17.1.1 CTCRC decals and those of the series sponsors, promoters and the BARC are required to be displayed in an un-obscured position in accordance with the following table.

Item Placement

CTCRC Number Background (round or square)

One on each front door, one on the bonnet

CTCRC “classictouringcars.com” sunstrip

TBC Top of rear windscreen

Series Sponsor Sunstrip

TBC Top of front windscreen

Series Sponsor logos (if required - TBC) TBC One on each side of the car

(front wing, rear door or rear quarter)

BARC Logo

One on each side of the car

(front wing, rear door or rearquarter)

Class Letter (50mm black lettering) eg88A

One on each CTCRC number background, adjacent to race numbers

Class Weight (40mm white Lettering) eg 950kg

One on each of the rear side windows

5.17.1.2 Decals shall be fitted as issued. They may not be cut or otherwise defaced or deformed without prior approval from the CTCRC committee.

5.17.1.3 Non CTCRC approved decals such as, but not restricted to, other clubs and other championship/series decals are not to be displayed on vehicles. These should be removed or covered up.

5.17.1.4 Points will ONLY be awarded to competitors correctly displaying the required decals

5.17.2 Decals may be obtained from the CTCRC nominated supplier free of charge.

RACING A JAGUAR IN 2013?

BELOW YOU'LL FIND THE REGULATIONS FOR THE CLASSIC TOURING CAR RACING CLUB PRE '83 AND PRE'93 CHAMPIONSHIPS, AND THE JEC REGULATIONS. WE'LL BE ADDING A FEW OTHERS LATER TOO - ANYWHERE THAT YOU CAN RACE AN XJS IS GOOD ENOUGH FOR US.

AS IS USUAL, WE WILL BE ADDING A LITTLE EDITORIAL COMMENT ALONGSIDE AS WE THINK OF IT, TO EXPLAIN WHAT WE THINK IT MEANS AND HOW YOU MIGHT CHOOSE TO EXPLOIT IT, OR HOW IT MIGHT PROHIBIT SOMETHING YOU'RE ALREADY DOING BUT HAVEN'T THOUGHT ABOUT.

SEE HOW KIND WE ARE.

XJS 6-cylinder car makes the cut off date by a whisker.

The key is for a car to be "marketed" pre 1/1/83.

Has to be a 3.6 though, 4 litre cars are pre-93 only.

Merging the older cars with the pre '83s this year appears to introduce fibreglass panels. Which is nice.

Specific reference to the XJS may be as a result of a certain team's intervention. Can't imagine who.

Good. I hate chopped about dashboards, and I like an extra dial.

Simple drafting that prioritises safety. See how it's done?

No plastic headlamp lenses then! Sorry Bear.

None of that horrible propped-up bonnet nonsense.

Plastic windows allowed, but must look like glass.

Don't try to sneak a splitter on the front!

Accidentally allows you to move it! You could "locate" it in the original place, but still end up with it elsewhere!

Wouldn't if I were you.

Allows AJ16 head given valves etc all free.

No carbs on XJS!

Because they're nasty.

Fancy inlet permitted, but you'll have to be a bit more creative, given the original plenum must still be there.

Because it assumes that your air inlet ducting is beneath the front of the car.

A modified ECU still possible, but old-style early 3.6 XJS system only.

You are allowed to make your barge handle properly.

Hmm, now which car appeared in 2012 with lexan headlight covers, and looked great...?

Now that's how you ban carbon fibre from the place that actually matters!

Putting the 3.6 XJS on 8" wide rims back into class A with the big boys. Because could we really manage on 7"s?

Wide range of rubber, but you're on taller profile rubber of medium hard or worse. We may have been using exactly such rubber in 2012...

3.6 XJS 1221kg!

4.2 saloon 1313kg.

Sense at last!

Substantial changes from 2012. Merging the Post-Histrionic cars with the Group 1 into the new Pre-83 category allows for fuller grids, but brings with it new freedoms. Fibreglass panels etc are new. The XJS is specifically catered for with bodykits, maybe because someone brought them a pretty car and they would like a few more.

Jags generally are more welcome under these rules. No 4 or 6 litre cars of course, and the massive brakes and big wheels of the wilder cars are still banned, but if you subscribe to the more "historic" ethos a lot of XJ6 and XJS now fit neatly into this series. And several will be joining Kutuka for selected rounds now that the CSCC has evolved into a southern championship.

Rather more free in a number of ways than the pre '83s, as you would expect. Even carbon brake dics are alowed if you can find a car that had them in production. Ther series is dominated by the fast BMW and Cosworths, but they are not undefeatable, the big Vitesse is right up the front end, and we saw an Escort from the older category running in a podium position at Cadwell.

There is considerable scope for tuning within the regs, it is a handy place to develop your old roadgoing class machine, as we discovered in 2012.

FOR ANYONE WHO CAN'T FIT THE PRE 83S, THERE REMAINS THE PRE 93S, WHICH IS WHERE KUTUKA PLAYED IN 2012. FREER HERE AS THE 4 AND 6 LITRE CARS CAN PLAY, BIGGER WHEELS MEAN BIGGER BRAKES ETC. HERE ARE THEIR REGS:

2013 CTCRC SVG MOTORSPORT PRE-93 TOURING CAR

CHAMPIONSHIP

The following technical regulations are set out in accordance with MSA specified format and it should be clearly understood that if the following texts do not clearly state that you can do it, you should adopt the principal that you cannot.

Pre-93 Touring Cars are two-wheel drive,four-seater saloon cars marketed before 1st January 1993, of which more than 5000 examples were manufactured in any 12 month period during the overall production run and/or were homologated by FIA for competition in Group N category for production cars prior to that date. All cars are subject to approval of eligibility by the CTCRC Committee and cars not complying with these regulations may be eligible subject to CTCRC Committee approval.

• Cars complying with BARC/CTCRC Pre-83 Touring Car regulations are also eligible

• The BMW E36 M3 EVO, Nissan Skyline, Ford Sierra Cosworth RS500 and Ford Escort Cosworth are not eligible for this championship

• Cars where the number of injectors (excluding secondary idle injectors) is in excess of the number of cylinders are not eligible for this championship.

5.2.1 The responsibility to prove eligibility is that of the entrant at all times. For clarification of an entrant refer to the MSA Competitors' and Officials' Yearbook. All entrants must produce a Historic Technical Passport (HTP) or Homologation papers stamped by the ASN, where issued,for that vehicle and these must be available for inspection at scrutineering. Where no such paperwork is available, the entrant must produce written confirmation from the CTCRC Committee as to the eligibility of the vehicle model in question. The CTCRC Committee in conjunction with a Licensed Eligibility Scrutineer shall determine

matters as to the eligibility and the implementation which may involve photographing any part of the vehicle and performing electrical diagnostics at the scrutineer’s discretion.

5.2.2 Unless specifically permitted in these regulations, all components must be to original specification.

5.2.3 Cars will run in eightclasses based on production capacityexcluding permitted overbore:

Class A Over 3900cc

Class B 2501cc to 3900cc

Class C 2001cc to 2500cc

Class D 1601cc to 2000cc

Class E 1401cc to 1600cc

Class F Up to 1400cc

Class G Production BMW

Class X Invitation Class

Cars entered in Class G will be awarded points and trophies in class but are not eligible to win the overall championship. Class G technical eligibility is subject entirely to regulations of section 5a and not otherwise.

5.2.3.1 Invitation Class – The invitation class is designed to allow cars that, whilst not strictly adhering to the regulations,have been prepared sympathetically to the spirit of the championship and with committee

approval may race under observation. Entrants wishing to run in the invitation class must submit a written specification of the car detailing all areas where the car does not comply with these regulations.

This specification will be made available to the eligibility scrutineers for pre and post event checks. Cars will be approved each season on an individual vehicle basis by the CTCRC Committee and the car must not deviate from the submitted specification unless such changes are approved by the CTCRC

committee. Any approval may be withdrawn at any time by the CTCRC committee. Invitation class cars are not eligible for overall championship awards .

5.2.4 Cars must be presented to a high standard.

5.2.5 Presentation for a vehicle for scrutineering is a declaration by the entrant that the vehicle is eligible for that event.

5.2.6 The following rules will also be applied;

Forced induction engines with 4 valves per cylinder are subject to an equivalency factor of 1.7

Forced induction engines with 2 valves per cylinder are subject to an equivalency factor of 1.4

Rotary engines are subject to an equivalency factor of 2

Naturally aspirated cars 2000cc and over, with 2 valves per cylinder are subject to an equivalency factor of 0.8.

5.3.1 All vehicles must comply with the MSA Appendix K Safety Criteria

5.3.2 Interior fittings, trim and bodywork may be locally modified to allow fitting of the rollcage and doorbars.

5.4.1 All vehicles must comply with MSA General Technical Regulations and the relevant parts of sections J & Q of the MSA Yearbook except where specified below

5.4.2 Vehicles may be brought up to any series production specifications for that model prior to 1st January 1993. For theavoidance of doubt, 'model' shall mean a vehicle of the same bodyshell shape, size, specification and silhouette.

5.4.3 Any component listed on the MSA or FIA (or national equivalent for foreign cars) homologation papers for use in Group ‘N’ during the series production of that model may be substituted for the original production componentprovided that the substitute part was in production or homologated prior to 1st January 1993.The responsibility to prove eligibility is that of the entrant at all times.

5.4.4 No component may be substituted which serves to alter the shape or size of the bodyshell and/or panels themselves or increases the capacity of the engine beyond that which was in production or homologated prior to 1st January 1993. Optional equipment is to be submitted to the CTCRC committee for possible inclusion on a vehicle by vehicle basis.

• Components homologated for the BMW E36 M3 EVO, Nissan Skyline and Ford Escort Cosworth are prohibited.

• BMW E30 M3 may use parts fitted to Sporting Evolutions of the E30 M3

• BMW E36 M3 may use BMW M-Tech rear spoiler part no 51719402627 or 51712260317. No other rear spoiler is allowed

• Ford Sierra Cosworth may use the RS500 front bumper and RS500 two-element “tea-tray” rear spoiler. All other components homologated solely for the RS500 are prohibited.

5.4.5 Nuts, bolts, washers and locking devices are free.

5.4.6 Where these regulations call for original components or pattern parts these must be to the manufacturers original specifications for that model as catalogued by the manufacturer or importer prior to 1st January 1993.

5.4.7 Advertising on vehicles is subject to requirements set out in MSA Yearbook H29.1.2 &H29.1.3.

5.4.8 Competitors registering do so in the full knowledge that CTCRC reserves the right to require the Eligibility Scrutineer to carry out, record and enforce eligibility checks which may include the sealing of component(s) for subsequent checking. The costs of such checking shall be borne by the CTCRC but the

CTCRC shall not be liable for the costs of stripping or reassembly of vehicles after the checks have been carried out.

5.5.1 Chassis and chassis members must remain as originally manufactured. Lightening or reducing of chassis, or chassis member strength, is prohibited.

5.5.2 Addition of material to strengthen the chassis is permitted.

5.5.3 Seam welding is permitted

5.6.1.1 Bodywork must be complete and standard in shape,material and thickness on all exterior surfaces including all light lenses. Where original materials are unobtainable, local repairs of adequate strength may be made using modern equivalents. Bonnets, boots and spoilers may be replaced with fibreglass replicas and any non metallic panel may be replaced with a fibreglass replica. Replacement of panels with non-original material is otherwise prohibited. The original bonnet and boot shut lines must be as in

production.The original boot and bonnet hinges and fasteners may be removed and are free.

5.6.1.2 Interior

a) Floor carpets, under felt, sound deadening, headlining, front and rear parcel shelves, centre consoles, the front passenger seat, rear seats and trim in the boot/luggage compartment may be removed.

b) All internal panels and subassemblies must remain as originally manufactured. Strengthening is permitted

c) Battery trays and their supports may be removed.

d) Hatchback cars with under-floor spare wheel well may remove the spare wheel well for the sole purpose of the fitting of a fuel tank under the boot floor. A steel plate of at least the thickness of the metal removed must cover the aperture remaining.

e) Thedashboard must be retained in original material.

f) Instrumentation is free.

g) The interior door trim must be retained in original or other non-flammable material.

h) Window operating controls may be removed. If window operating controls are retained it is permissible to change electrically operated windows to manual winding operation.

i) The original mirrors may be removed but vehicles must be fitted with at least one externally mounted rear view mirror in accordance with MSA Yearbook section Q19.15.1 and at least one interior mirror. The fitment of a wide angle interior rear view mirror is recommended.

j) Driver’s seat is free subject to MSA requirements. The driver must be located entirely to one side of the centre line of the car. Local modifications are permitted for the purposes of secure and safe mounting

k) Heaters and interior ventilation systems may be removed.

l) Foot controls and their linkages are free except that the foot operated surface of the brake pedal must be located no more than 4” (100mm) forward or rearward of the original production position.

5.6.1.3 Exterior:

a) Reworking or modification to exterior bodywork is prohibited but any part of the arch/wing pressing folded into the wheel arch may be deformed, but not removed, to give clearance to the tyres.

b) The removal of exterior decorative strips and bumper overriders is permitted.

c) It is only permitted to make holes in panels for the passage of cables, fuel, water, oil, hydraulic, instrument or fire extinguisher lines.

d) Window material for side and rear windows is free subject to prevailing MSA regulations. All original window mounting hardware (ie mounting rubbers, sliders, guides, quarter-lights and other externally visible features) must be retained. The original steel bonnet or boot may be modified to reduce its weight providing that the visible exterior surface remains as manufactured.

e) Forward facing fog lights mounted in, or under, the front bumper may be removed. Internal bodywork or trim behind the original fog light locations may be modified solely to allow the fitment of ducting from the original fog light locations to the front brake discs. The cross-sectional area of the ducting to each front brake disc must not exceed 50cm2.

5.6.1.4 Bodywork must be complete and standard in shape and silhouette. Any item below the centreline of the wheel must not project beyond a line drawn at 45 degrees to the horizontal and tangential to the bodywork (not including over-riders).

5.6.1.5 Minimum ground clearance without driver is 60mm excluding exhausts and silencers.

5.7.1 The original standard production cylinder block may be used or an alternative manufactured by the same manufacturer to the original production specification including but not limited to material, bore, number of main bearings and number of main bearing fasteners must be used and may be re-bored up to a maximum of plus 0.065".The crankshaft is free, but the original stroke and number of bearings must be retained. The crankshaft is free, but the original stroke and number of bearings must be retained. It is permissible to remove metal from original cylinder blocks and heads.

5.7.2 The cylinder head(s) must be the standard production component or an alternative manufactured by the same manufacturer as the original production component to original production specification including but not limited to material, number of valves, ports and plugs, same plug angle, valve angle/port configuration and operating type and fixes directly onto the original standard production cylinder block without modification. Camshafts, camshaft bearings and drive systems are free, provided that they remain in their original positions and remain the sole means of operating the valves.

• BMW E36 M3 may use the standard production 3.2L cylinder head without modification

5.7.3 The engine must be located in the original position.

5.7.4 Radiators are free but must remain in their original location. Oil coolers and additional water radiators are permitted provided they are located within the periphery of the bodywork. Dry sump systems are prohibited.

5.7.5 Only the original production type of induction must be used except that vehicles fitted with injection in production may be converted to carburettors if another eligible variant of the same model sharing the same bodyshell and eligible in the same class of this championship was also available with a carburettor equipped engine. The number of chokes of the replacement carburettion must not exceed the number of chokes originally fitted to this carburettor equipped variant.

Carburettors, their linkages and inlet manifolds are free, within the limitation that the total number of chokes must not exceed the maximum number of chokes homologated for Appendix 'J' Group N.

5.7.6 Motorcycle carburettors are not permitted.

5.7.7 Inlet trumpets are not permitted to have automatically controlled adjustment.

5.7.8 Air filter and air filter box may be removed and air ducting/trunking is free provided it does not extend beyond the periphery of the bodywork. Anti surge pipes are permitted as also are return pipes from the carburettor/injection system.

5.7.9 Inlet and exhaust manifolds are free. The exhaust system is free subject to MSA requirements.

5.7.9.1 Fuel injection is only permitted if fitted in production or homologated prior to 1st January 1993 and must employ the original production method of triggering and operation. The plenum chamber is free but the number of throttles must not exceed the number fitted in production or homologated before 1st January 1993. The fuel injector nozzles must be in the original location and must not exceed the original number fitted in production or homologated before 1st January 1993.

5.7.9.2 Cars with fuel injection and four or more throttles must use the standard or homologated size throttles and these must use a butterfly type mechanism. Slide or barrel throttles are not permitted.

• BMW E30 M3 may use a maximum 48mm throttle body

5.7.9.3 When fitting of a turbocharger is permitted by these regulations it shall be the standard production or homologated component and must not be modified save for the fitting of a 360 degree thrust bearing to improve reliability.

5.7.9.4 The boost pressure setting is free but must not be adjustable from within the habitacle.

5.7.9.5 Intercoolers may only be fitted if used in production, must be in the original location and must be the standard production unit or analternative unit with the maximum core dimensionsof 600mm x 400mm x 50mm (wxhxd) with maximum 60mm diameter pipes for both inlet and outlet.If the original intercooler is replaced by an alternative the radiator support panel maybe trimmed or deformed solely to allow fitment of the intercooler. Any other devices intended to cool the intake charge, including, but not limited to, water injection, intercooler water spray or charge coolers are not permitted.

5.7.9.6 Cars using forced induction with four valves per cylinder will be subject to an equivalency factor of 1.7:1.

5.7.9.7 Cars using forced induction with two valves per cylinder will be subject to an equivalency factor of 1.4:1.

• Ford Sierra Cosworth may only use a Garrett T3 turbocharger which must be fitted with an intake restrictor of 36mm. The restrictor must be fitted to the compressor housing and all the air feeding the engine must pass through it. The compressor housing may have material removed solely to allow fitment of the restrictor.

• Mitsubishi Starion Turbo may use a Garrett T3 turbocharger in lieu of the original component

5.7.9.8 Rotary engined cars - The induction timing is free and therefore the dimension of the induction port which controls its opening and closing point may be modified by removal and addition of material. In all other respects the port must remain as homologated. The engine capacity will be determined by using an equivalency factor of 2:1. Rotary engined cars fitted with injection in production may use a carburettor with no more than two chokes

5.7.10 The ignition system is free however the firing order must not be changed.

5.7.11 All other engine components are free.

5.7.12 To allow for scrutineers wire seals, every installed engine must have 1.6mm (1/16”) holes drilled in readily accessible locations as follows:-

• Sump: Cross drilled through two adjacent retaining screws or studs.

• Rocker/cam cover: Cross drilled through two adjacent retaining screws or studs.

• Turbo: Cross drilled through one retaining screw or stud fastening the compressor housing to the centre housing and the nearest retaining screw or stud to it fastening the turbine housing to the centre housing.

5.7.13 Engines may be sealed at any time by a Licensed Eligibility Scrutineer and only by written permission in advance from the CTCRC Committee or a Licensed Eligibility Scrutineer may seals be broken.

5.8.1 Suspension type must remain unaltered. Except springs, dampers, anti roll bars and bushes the original suspension components (or pattern parts to the manufacturer’s original specification) must be employed in their original positions but may be strengthened except that Track Control Arms may be

modified locally solely for the purpose of adjusting length and this may be achieved by use of a track rod end joint at one end of the TCA. Macpherson Strut top mounts are free. The original suspension mounting points are to be used without modification but may be strengthened.

5.8.2 Suspension springs are free except for maintaining type (coil, leaf, torsion) and no more than the original number are employed. Spring caps are free and spring platforms may be adjustable. A telescopic damper may be converted to a coilover and redundant coil springs removed.

5.8.3 Dampers are free providing the original operating principle (hydraulic, friction, lever or telescopic) and no more than the original number are employed. These must be mounted on the original mounting points.

5.8.4 Anti roll bars and their mountings and shape and material are free providing they fit directly on to the original body/chassis mounting points and the mobile suspension units. No other additional suspension components are permitted.

5.8.5 Suspension bushes are free providing the original production bush can be replaced in its original position without modification to the bush housing. It is permitted to machine circlip retaining grooves to locate suspension bushes.

5.9.1 Vehicles must use either the original production type of gearbox or the homologated alternative.The gearbox must remain in the original position. Gear levers and gear shift mechanisms are free but must employ the original method of operation, shift pattern and bodyshell aperture. Drive shafts and propshafts are free but may only be made of metallic material.Mechanical limited slip or torque biasing differentials are permitted.

• Chevrolet Camaro IROC-Z may use a 4 or 5 speed manual gearbox from any other production Chevrolet Camaro, of or prior to the period.

The rear axle must remain in its original position andmust be the original standard production component but may be locally modified. Where a differential casing is removable from an axle casing the differential casing must be regarded as part of the original axle casing and is covered by the same

technical regulations.

• 3rd Generation Chevrolet Camaro my use an aftermarket Torque Arm on the rear axle instead of the production item.

5.9.2 Gearboxes and transaxles with rapidly interchangeable ratios or proprietary racing gearboxes are prohibited. Sequential gearboxes and/or traction control devices are prohibited.

Only the original number of gear ratios and overdrives may be fitted.

5.9.3 Gear ratios and final drive ratios are free.

5.10.1 Electrical equipment is free provided that a battery,generator, and starter are fitted and in full working order at all times.

5.10.2 Headlights, tail lights, stop lights, high intensity rear light and windscreen wiper must be fitted and in full working order.

5.11.1 Brake systems are free save that carbon disks and ABS systems are prohibited unless fitted in production in which case they must be to production specification. Ducting for the purpose of cooling brakes or removing dust is permitted provided it is not visible outside the car and serves no other purpose and if beneath the car does not project beyond a line drawn at 45 degrees to the horizontal and tangential to the bodywork (not including overriders). Modification or removal of brake back plates is permitted.

5.11.2 Cars with single circuit braking must be fitted with an operational hand brake. Cars fitted with dual circuit braking are not required to have a handbrake fitted.

5.11.3 Brake lights must be operational and operated only by the brake pedal without a delay. The high intensity rear fog light must not be operated by the brake pedal.

5.12.1 Steering wheels and steering columns are free.

5.12.2 Hubs and hub material are free.

5.12.3 Road wheels must be no greater diameter than the original diameter plus 2” to a maximum of 18”, and must be fastened to their hubs by the original number of studs/bolts. An original diameter wheel +1” must be able to be fitted to the hub, as and when required. Wheel material is free.

Maximum permitted rim widths are:

Class A 9.0"

Class B 9.0"

Class C 8.0"

Class D 7.0"

Class E 7.0"

Class F 7.0"

5.12.4 Centre locking wheels and their hubs are prohibited

5.13.1 Tyres must be listed by the tyre manufacturer as medium, or harder, for saloon car circuit applications.

Soft compounds are not permitted. No modification to tread pattern or tread depth by cutting is allowed. Tyre aspect ratio (profile) is free.

5.13.2 The only permitted tyres are:-

• Dunlop Formula R D01J

• Dunlop Direzza 02G

• Dunlop Direzza 03G

• Toyo Proxes R888

• Toyo Proxes R1R

• Kumho ECSTA V700

• Yokohama A048-R

• Yokohama A032-R

• Dunlop D84J, D83J, D93J (D93J in 10” diameter only).

For the purpose of clarification these tyres are MSA List 1B and therefore MSA List 1A regulations relating to wear bars and tread depth do not apply.

Tyres listed in the MSA List 1A are also permitted, but must have an aspect ratio (profile) of 45% or greater

5.14.1 These are true minimum weights including driver, normally seated with racing overalls and helmet with no tolerance and all cars must comply at all times. Ballast is permitted to achieve these minimum weights but weight may only be removed within the limits of the modifications detailed within these

regulations. The total weight of ballast carried must be declared, and be in position, at all times during practice and racing.

5.14.2 Cars marketed from 1st January 1983 – the published Kerb weight minus 10%. Kerb weights will be determined by committee sourced reference material.

5.14.3 Cars marketed before 1st January 1983 – as follows:-

1000cc 745kg    3600cc 1221kg

1100cc 765kg    3700cc 1237kg

1200cc 785kg    3800cc 1253kg

1300cc 805kg    3900cc 1269kg

1400cc 825kg    4000cc 1285kg

1500cc 845kg    4100cc 1299kg

1600cc 865kg    4200cc 1313kg

1700cc 885kg    4300cc 1327kg

1800cc 905kg    4400cc 1341kg

1900cc 925kg    4500cc 1355kg

2000cc 945kg    4600cc 1369kg

2100cc 964kg    4700cc 1383kg

2200cc 983kg    4800cc 1397kg

2300cc 1002kg  4900cc 1411kg

2400cc 1021kg  5000cc 1425kg

2500cc 1040kg  5100cc 1439kg

2600cc 1057kg  5200cc 1449kg

2700cc 1074kg  5300cc 1461kg

2800cc 1091kg  5400cc 1473kg

2900cc 1108kg  5500cc 1485kg

3000cc 1125kg  5600cc 1497kg

3100cc 1141kg  5700cc 1509kg

3200cc 1157kg  5800cc 1521kg

3300cc 1173kg  5900cc 1533kg

3400cc 1189kg  6000cc 1545kg

3500cc 1205kg

5.14.4 Success Ballast - All cars must be suitably equipped to carry success ballast. All cars must reach minimum weights as listed excluding any success ballast. Success ballast must only be added inside the car on the front and/or rear passenger foot well. Maximum ballast of 150kg total will be allocated (75kg per footwell). It is the competitor’s responsibility to provide and fit their own ballast if it is required, and to ensure that ballast is fitted in a safe manner.

Success ballast weight allocation will be made on anindividual basis and at the discretion of the CTCRC committee.

5.14.5 Ballast must be attached to the shell/chassis via at least 4 mounting points using bolts with a minimum diameter of 8mm each with steel counter plates of at least 400 sq mm surface area and 3mm thickness.

Ballast mountings must include provision for the fitting of scrutineers wire seals.

5.15.1 Only pump fuel as defined by the MSA Yearbook is allowed. An MSA permitted additive is permitted.

5.15.2 Fuel pumps and fuel tanks are free subject to MSA requirements.

5.15.3 Hatchback cars with under-floor spare wheel well may remove the spare wheel well for the sole purpose of the fitting of a fuel tank under the boot floor. A steel plate of at least the thickness of the metal removed must cover the aperture remaining.

5.16.1 Silencers are free. Silencing must comply with MSA Yearbook Regulation J5.17 & J5.18.

5.17.1 Only competition numbers allocated by the CTCRC Registrar are to be displayed. They must be displayed in accordance with MSA regulation J4 and remain as allocated until the end of the season.

5.17.1.1 CTCRC decals and those of the series sponsors, promoters and the BARC are required to be displayed in an un-obscured position in accordance with the following table.

Item Placement

CTCRC Number Background (round or square)

One on each front door, one on the bonnet

CTCRC “classictouringcars.com”sunstrip TBC

Top of rear windscreen

Series Sponsor Sunstrip TBC

Top of front windscreen

Series Sponsor logos (if required - TBC) TBC

One on each side of the car (front wing, rear door or rear quarter)

BARC Logo

One on each side of the car (front wing, rear door or rear quarter)

Class Letter (50mm black lettering) eg88A

One on each CTCRC number background, adjacent to race numbers

Class Weight (40mm white Lettering) 950kg

One on each of the rear side windows

5.17.1.2 Decals shall be fitted as issued. They may not be cut or otherwise defaced or deformed without prior approval from the CTCRC committee.

5.17.1.3 Non CTCRC approved decals such as, but not restricted to, other clubs and other championship/series decals are not to be displayed on vehicles. These should be removed or covered up.

5.17.1.4 Points will ONLY be awarded to competitors correctly displaying the required decals

5.17.2 Decals may be obtained from the CTCRC nominated supplier free of charge.