New Zealand Historic Muscle Cars Inc.

Pre ¡¯78 New Zealand Historic Saloon, GT and Sports Car Under 3Litre Class

IntroductionThe Historic Racing Club Inc (HRC) will support the establishment of and races for a combined race class of Pre 1978 Historic Saloon, GT and Sports Cars cars (HSGTSC) that comply with appropriate FIA Appendix K, Motorsport New Zealand (MZNZ) Schedule K and MSNZ Schedule T & C regulations and the following.

It is anticipated there will be a natural division in the Pre ¡®78 HSGTSC class such that cars under 3000cc will normally comprise one grid, whereas those over 3000cc will comprise a separate grid. However, at some meetings, these two classes may be combined on the same grid but will race as two separate classes.

The following regulations for the Pre ¡¯78 under 3000cc class are based on the regulations contained in FIA Appendix, MSNZ Schedule K and MSNZ Schedule T&C - Groups 1 and 2 and the following.

The MSNZ Schedule T & C ¨C Groups 1 & 2 regulations have been slightly modified to meet the needs of the Under 3Litre Class. For ease of reference, the MSNZ T & C Regs have been reproduced below in full. The T & C Regs have been interspersed, where applicable, with any specific additions or changes needed to meet the requirements of the Under 3 Litre Class. Any such changes are highlighted in bold in the text below.

To be eligible to race in this class cars must either have a current COD or comply with the following rules, all cars will be inspected by an eligibility scrutineer during the course of the season.

Cars must have forward and rear facing rain/park lights that operate.CONTENT

Objectives of Thoroughbred and Classic Car regulationsArticle 1 Identity ClassificationArticle 2 Interpretations and DefinitionsArticle 3 Group 1 ¨C Sports and GT Cars up to 31.12.1977. and,

Group 2 ¨C Production Saloon Cars up to 31.12.1977.OBJECTIVES of MSNZ Thoroughbred & Classic Car Regulations

This [MSNZ] schedule is designed to provide a set of regulations for the use of period production based Saloon, Sports and Grand Touring cars in sporting competition while maintaining the philosophy of the Historic & Classic movement.

These regulations apply to all Saloons, Sports and GT cars [as described in MSNZ T&C Groups 1&2], that are not otherwise covered by MSNZ Appendix Six, Schedule K or FIA Appendix K.

Where appropriate, these regulations have been formulated to preserve period specifications by preventing the application of technology that was unavailable for the period depicted.

These regulations define the ONLY ALLOWABLE changes in each vehicle raced, which differ from the standard model variant the vehicle represents.1. IDENTITY CLASSIFICATION:

1.1. Refer to MSNZ Appendix 6, Section Three for details on the Certificate of Description and for details on vehicle classification.Note: The onus of proof relating to the appropriate vehicle Certificate of Description classification rests entirely with the competitor

1.2. The date assigned to a vehicle by a COD or from corroborated information supplied by the competitor, representing the vehicle¡¯s owner, will be the actual year of commencement of manufacture of that model. 1.3 Once classified, cars may only be re-classified by order of MotorSport NZ. It is the entrant¡¯s responsibility to prove the eligibility of a car¡¯s specifications as entered on the Certificate of Description. Any appeal or enquiry regarding classification status shall be referred to MotorSport NZ.2. INTERPRETATIONS AND DEFINIATIONS: In addition to the interpretations detailed in the National Sporting Code Article 2 and in Article 2.1 of Schedule K, the following apply to this schedule;¡®Appearance suitable¡¯ means appropriate to or available in the period or era that the car depicts.¡®Era¡¯ means the years (period) during which a vehicle model and /or its components were first used actively in motorsport competition.¡®Exterior trim¡¯ means all ornamentation, often chrome or contrasting colour, which may include bumpers, over-riders, grills, light surrounds, strips and badges as standard fitment.¡®Free¡¯ means the application of technology that is appropriate for the model concerned. Free (part) means that the original part as well as its function may be removed or replaced with a new part on condition that the new part has no additional function relative to the original part and must be from the same era and be shown to be available, or used in period.¡®Grand Touring¡¯ or ¡®GT¡¯ means a fixed head, performance orientated, two (2) door vehicle with either two (2) or two plus two (2+2) seating.¡®Homologation¡¯ is the term given to the official certification made by the FIA that a specified minimum number of a specific model has been made on series production terms.¡®Interior Trim¡¯ includes, but is not limited to, the door and panel trims, dash, upholstery, knobs and ceiling trim, but excludes flooring vinyl, carpets and original fitment front seats. Ceiling trim, rear seats and parcel shelf are non-critical items and can be removed.¡®Make¡¯ means the part(s) produced within that manufacturer¡¯s model range during the production life of that model or model variant. A change in model is determined by a change in model number/classification instigated by the manufacturer.¡®Model¡¯ means the vehicles and components thereof produced within a single model number or classification within the manufacturer¡¯s model range.¡®Period¡¯ means the era (years) during which a vehicle model and/or its components were first used actively in Motorsport Competition in New Zealand, or a minimum of three separate overseas examples.¡®Period Variation¡¯ means variations carried out on that vehicle model, that were variations available in the era during which a vehicle model and/or its components were first used actively in motorsport competition.¡®Saloon¡¯ means a two (2) or four (4) door vehicle not falling into either the Sports or GT categories including the convertible variations of same.¡®Sports Car means a two (2) seat open vehicle and the fixed head variations of the same.¡®Sports Racing Car¡¯ means automobiles that have two seats and enclosed wheels constructed primarily for competition or circuit racing. They are purpose built, of open construction and are generally one-offs or manufactured in limited numbers, but not of a type constructed from a mass production Sports or Sport GT car.¡®Standard¡¯ means a vehicle identifiable as belonging to a production series, with a minimum model run of 100 identical units, distinguishable by external general lines of the bodywork and identical mechanical construction of the engine, transmission and suspension to the wheels.¡®Standard Material Type¡¯ means of the same construction and composition as available on the standard model.¡®Substitute Part¡¯ means a completely new part that retains the same appearance, material and dimensions of the original item fitted to that particular make of vehicle. [Note that this is an HSGTSC addition]¡®Visually Standard¡¯ means visually identical with.¡®Works¡¯ means a defined specification for a vehicle and/or its components as prepared by the vehicle manufacturers officially designated race team.3. GROUP 1

Sports and GT Cars up to 31.12.1977, and GROUP 2 ¨C Production Saloon Cars up to 31.12.1977:

3.1. Eligibility:

Important note: The following regulations have been formulated to preserve period specifications by preventing the application of technology that is inappropriate for the period depicted. The objectives stated at the start of this Schedule [i.e. these regulations] should be considered in relation with all of the following articles.(1) A vehicle may be modified to utilize the period variations within the manufacturer¡¯s model body shell. Minor alterations to facilitate fitment of safety items is allowed. The boot floor may be replaced with a rigid material (from period) and modified, to allow fitment of a fuel cell. The use of Kevlar or Carbon fibre is not permitted as it was not available in Period.(2) All other modifications are strictly prohibited except as specified elsewhere in this schedule.(3) The onus of providing proof of eligibility remains the responsibility of the competitor. Note: It is the responsibility of the competitor to be able to show conclusively that the vehicle contains only specifications of its original build and modifications that pertain to that particular build model of the same manufacturer¡¯s range.

(4) Scrutineering Audits:Scrutineering audits will be conducted to the requirements of Appendix Six, Schedule ¡®AA¡¯ or Schedule A where appropriate .3.2 Exterior:

The vehicle shall be smartly maintained with all exterior trim in place as raced in period. All panels, bumpers, mouldings, spoilers etc must be made of materials as used in period. Any part of the arch/wing pressing folded into the wheel arch may be deformed, but not removed, to give clearance to the tyres. [Note that this is an HSGTSC addition]

(1) Only rear wings (aerofoils) which were available for the car in period may be fitted. These must be made of materials from that period i.e. no Kevlar

(2) Any/all modifications must be in ¡®period¡¯ (refer definitions)3.3 Interior:

(1) Floor coverings may be removed. (2) Front seats may be replaced with recognised competition seats. (3) Seatbelts must comply with Appendix Two Schedule A or Appendix Six Schedule AA as appropriate for competition. Full harness competition seatbelts must be fitted. [Note that this is an HSGTSC addition](4) Solid wood-rimmed steering wheels are prohibited, even when they are original fitment. The steering wheel may be replaced with a sports or competition wheel. (5) Any non-visible devices such as heater and fan may be removed or substituted. (6) Interior/Door panels must be fitted. i.e. no open and uncovered door frame cavities or between door and frame. Minor interior items such as door storage pockets and under dash trays may be removed.(7) The headlining may be removed and the original dashboard modified to permit ease of installation of the roll structure.(8) Rear seats may be removed for the fitment of a roll cage. Rear Interior can be in "Works" configuration, but must smartly maintained [Note that this is an HSGTSC addition](9) Roll protection or Roll Cage must be fitted (Note that this is an HSGTSC addition)

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3.4 Glazing:

Fitting of a laminated windscreen is strongly recommended. All other glazing may be substituted with alternative transparent material, but original fixing medium must be used. Rear screens to be minimum 5 mm thick 3.5 Chassis:

(1) The "standard" chassis must retain full structural integrity, i.e. removal of any material or component which was originally designed as load-bearing is strictly prohibited. (2) Addition of stiffening material and components is permitted. (3) Transmission tunnels and inner guards to remain as standard. Tunnels may be modified for shifter/lever/ or gearbox clearance only. Shifter must retain original position.

3.6 Engine:

(1) Cylinder head(s) and block may be changed to one of the same make and model range and must be visually standard and of standard material and configuration. Aftermarket "Substitute Part" blocks and heads are allowed. Alloy heads and blocks are not allowed unless original fitment and they meet the "Standard" or "Period" criteria. [Note that this is an HSGTSC addition](2) All other componentry is ¡®Free¡¯, except that turbo and supercharging are only allowed if standard, in which case the standard turbo (s) and/or super charger must be retained. (3) Computerised engine management systems are prohibited unless "Standard" fitment. (4) Overboring of cylinder blocks to maximum 12.5% of original capacity and removal of material from rotating or reciprocating parts for the purpose of balancing is permitted. Cylinder heads may be ported and polished(5) "Period" Modifications, as undertaken in New Zealand, are allowed but engine block must remain "Standard". [Note that this is an HSGTSC addition](6) Dry Sump Oiling systems are permissible. [Note that this is an HSGTSC addition]3.7 Exhaust:

The exhaust system is free provided that the maximum permitted decibel limit as specified in MSNZ Appendix Two Schedule A is not exceeded. 3.8 Clutch, Gearbox, Overdrive (If any):

(1) Clutch and flywheel are "Free"(1a) Gearbox and overdrive may be changed to another that was available in the same period as the car depicts and must have the same number of forward ratios as "Standard". (2) If an overdrive was originally fitted this may be included as one extra gear ratio. (3) Gear ratios may be substituted; sequential shift mechanisms are prohibited except where standard.

3.9 Differential:

The differential may be changed provided the type of suspension or mounting points are not affected. Ratios may be changed. Limited slip and locked differentials are permitted. 3.10 Suspension:

Original/Period componentry may be used providing it still performs its original function. Additional components may be fitted as required providing in all cases the standard type of suspension and chassis mounting points are retained and used for their primary function. Additional "Period" chassis or suspension modifications may be used. [Note that this is an HSGTSC addition]3.11 Brakes:

Brakes are "Free" except that all disc and drum friction surfaces must be made from ferrous material. Cooling ducts may be fitted. Aftermarket "Substitute Part" two piece "bolt together" fixed mounted aluminium callipers are permitted. Modern mono-block callipers are not permissible. Tandem/Twin master Cylinders are permitted. [Note that this is an HSGTSC addition]3.12 Wheels:

Wheels are "Free" provided they must fit within the bodywork and they have an appearance suitable for the "period" of that model. A maximum of 1 inch (25mm) larger diameter from "standard" wheel rim than that used in period the car depicts may be used. 3.13 Tyres: