1600 Specs

SPEEDWAY SEDAN ASSOCIATION

OF NEW SOUTH WALES

1600 SEDANS

SPECIFICATIONS

CHANGES APPLICABLE FOR 2007-2008 SEASON

Please be aware that NASR have adopted SFI safety specs.

Stricter standards for racewear, helmets and other safety items are recommended and will be required from 1st July 2008.

Details availble from the NASR website link

Engine changes were approved at the monthly club meeting of April 3rd 2007,

and will be introduced for the 2007-08 season.

They can be reviewed as agreed by the club committee at any time.

1. These changes to the current WCS 1600cc class will allow the acceptance of Junior 1600cc cars being able to be brought into the WCS division once the Junior driver reaches 17 years of age. The Junior division car must meet the WCS 1600 Specifications.

2. Cars can be single or twin cam motors of original OEM to OEM cars (like to like). Twin cam engines to be of no greater than 90Kw from manufacturer.

3. All wiring for the computer and engine management system must be visible. No hiding of wiring or false firewalls, etc. No additions to the wiring harness eg. resistors.

A full explanantion of what the State Examiner does when they check and seal the computer be made available to the Club for addition to these changes. (this forms an addition to item 4).

4. Twin cam motors must use the OEM computer of the same engine, not an up spec computer. The computer must be sealed by the State Examiner or as the club committeee decides in agreement with the 1600 owners and drivers.

5. If a twin cam motor is normally aspirated (carburetors and not injection) then a distributor and not a magneto is to be used. Furthermore, if the car came as an EFI engine then it must remain as EFI. If it came as a carburetor engine then it must remain as a carburetor engine.

6. Cars to use like motor, gearbox and diff - no interchange of 1600 twin cam to either an existing registered car or a different engine to car combination, unless an existing registered car was available at the time of manufacture with a 1600cc twin cam motor.

7. No mid engine cars allowed (ie. Toyota MR2)

8. Race tyres permissable - road tyres and winter treads optional.

Maximum 7 inch wheel rim width maximum.

No bead locks allowed.

92dBa noise limit applies to all vehicles.

Fuel to maximum 100 octane unleaded regular service station supply only, no fuel additives allowed.

Note that some specifications have passed their phase out period, and are no longer permitted. They include jerry cans for fuel tanks, fibreglass or plastic seats, and the use of AVGAS.

1600 SEDANS

INTRODUCTION

A - INTERPRETATION

The Speedway Sedan Association of NSW Inc shall direct the enforcement of these specifications in all aspects.

It shall be the sole authority for the interpretation of the specifications as contained in this book and any circularised amendments.

B - AUTHORITY TO EXCLUDE

Notwithstanding anything contained in these specifications or any other Supplementary Regulations that have been approved by the Speedway Sedan Association of NSW, the Scrutineer shall have the right to exclude any vehicle if it is not trackworthy, fails to meet specifications in relation to safety or performance, advantage, is or could become a danger to other competitors or the public.

The Scrutineer will make a full report in the Car's Log book and all defects noted must be rectified before the car is presented for scrutineering again.

Any part, panel or component not mentioned here within, is to remain standard as per production model

C - REGISTRATION

A Registration can only be issued for a race car, provided that the car conforms to the specification book for the class in which the car is to be registered.

The car must pass an annual registration examination and a registration decal will be issued and must be attached to a prominent location on the car.

The DRIVER is responsible for having the log book further endorsed before participation in each official practice session or race meeting. A log book without endorsement by the Machine Examiner is equivalent to a no-race ticket.

The DRIVER is responsible for obtaining their appropriate NASR/SSANSW Licence and Infringement Card, and must have them in their possession on race days/nights.

D - GENERAL

Specifications listed in this book are of a general nature only.

If 'IT' is not in the book, enquire for prior clarification or approval.

Before constructing cars of unusual or unconventional design, full details are to be submitted in writing to the Speedway Sedan Association of NSW Technical Committee. If requested, this submission shall be handled as 'CONFIDENTIAL', and approval or required modification before approval shall be given in writing to the applicant.

SPECIFICATIONS

1- GENERAL

Prime consideration must be given, where any doubt exists, to safety of drivers, crew, officials and spectators.

All race cars are subject to engine and general measurement before and after any race, at the discretion of the Chief Steward, Technical Officer or Disputes Committee.

Any question of legality of a race car or eligibility of a race driver must be settled before the commencement of a race meeting.

It is recommended whenever possible that all race cars under construction be inspected by the Licensed Club Scrutineer before painting.

2- DEFINITIONS OF MATERIALS

C.H.S.    Circular Hollow Section

R.H.S.    Rectangular Hollow Section

W.T       Wall thickness

I.D        Inside Diameter

O.D.       Outside Diameter

Body Metal      16 gauge (1.6mm)

All material sizes are a nominal minimum unless a maximum is stated.

All welds must be of a professional standard, free from porosity and slag.

All material must be of good quality. Bolts are not to be used through structural tubing but a suitable mounting bracket shall be provided. It is the responsibility of all drivers to ensure their race cars have all sharp protrusions removed when presenting them for any race. The Scrutineer may at any time direct a driver to remove sharp protrusions and this must be carried out before entering the track.

Race cars must maintain a neat and presentable appearance so as not to bring disgrace to the Association.

All body panels, bumpers, exhaust systems etc must be securely mounted. Any driver who continually loses components on the race track will be liable to fine and/or suspension.

Race cars when presented for scrutineering must be in full race condition i.e. tyres to be used for racing, battery secured, helmet and full race clothing.

3- PENALTIES

A maximum of twelve months suspension and/or $1000.00 fine will be imposed for the following breaches of the rules:

a) To any person who is guilty of misrepresenting a race car or safety attire/equipment or having an illegal engine or using 'Nitro' fuel or making a false log book declaration

b) To any person who knowingly provides wrong information for the registration of a race car.

c) To any driver who knowingly provides information for the licence procedure, or who races without an appropriate Licence/Infringement Card.

4- DRIVER SAFETY

WARNING:- Dentures and piercing jewellery should be removed.

All protective clothing and safety equipment must be used and/or worn in the approved and accepted manner.

All racewear/equipment to be inspected at each practice/race meeting.

Protective Clothing

DRIVING SUIT: Driver must wear a driving suit of an APPROVED fireproof material such as 'nomex' or wool. Suit to be a snug fit at ankles, collar and cuffs, and must be fastened at all times whilst in the car. Driving suit to be in a clean and tidy condition and free of holes. Repairs must be to a professional standard.

TWO PIECE SUITS NOT ACCEPTABLE

Flame protection (SUIT) + Thermal protection( U' Wear) = Driver Protection

Fire retardant long underwear, separate to driving suit must be worn irrespective of weather conditions.

NO FLAMMABLE SYNTHETIC MATERIALS AGAINST THE SKIN

Balaclava, socks, boots and gloves must be worn.

BALACLAVA: must cover mouth and nostrils to prevent inhalation of flames. Must have bridging piece across nose.

SOCKS: to be of woollen or fireproof material only.

BOOTS to be leather or fireproof material, must cover the ankles and be high enough to permit coverage by the driving suit cuff.

GLOVES: to be fire resistant

To assist with tear-offs, one glove may have the thumb and index finger removed down to the first joint.

HELMET: Driver must wear an approved and correctly fitting helmet which meets or exceeds AS1698-1974 standard.

Chin cup on helmet not permitted.

Spectacles, visor or sunglasses, if worn, must have lenses of non-splinterable material.

A ‘HORSE COLLAR’ neck brace must be used. If a ’Hans Device’ or equal is approved, a horse collar is still required unless the manufacturer recommends to the contrary . Correctly fitting to suit the driver and helmet used, leaving a nominal 15mm gap to prevent leverage injuries. The Horse Collar is to be of high density foam covered with Nomex, wool or similar fire retardant material.

Racewear Approvals.

RA001 'Aussie Trackwear'

RA002 'OMP' NOMEX single and triple layer suits

'TOP GEAR' PYROVATEX single and triple layer suits

'MSW' single layer suit

RA003 'SAVIC' Zirpro Products range

RA004 R & R Speed Sports

RA005 'WOOLSAFE'

RA006 R & R Speed Sports 'PREXPORT' driving boots

RA007 'B & D RACEWEAR'

RA008 'FASTMAN'

RA009 Custom Clothing NOMEX suit

RA010 'WALDEN MILLER' Nomex suit

RA011 'Revolution Racegear' 'RPM' range of race suits

RA012 ‘Sonicpower’ woollen suit

RA013 ‘Sprintstar’ fire retardant race suit

RA014 ‘Parasport’ Sports Wear

RA015 ‘Brenda Curle’ Racing Suit

RA016 Ramrods Cool Wool Clothing Underwear.

Underwear carrying the approval identification of IS0 6940 is acceptable.

SEAT BELTS: Five or six point restraints are mandatory, only belts using overcentre lever lock permitted.

An approved type 75mm racing harness must be fitted, using a minimum of four major belts and four mounting points, plus one or two anti-submarine/crotch straps. Crotch strap to be 50mm.

Shoulder belts to have separate anchor points/adjustors. Fig 2(i)

Shoulder belt mounting points shall be positions to the rear and below the point at which the shoulder belts come through the seat and be not more than 300mm from that point. Fig 2(ii).

WINDOW NETS: ARE COMPULSORY.

All race cars must be fitted with a propriety type window net, NO steel mesh, fitted to the driver’s side window opening, NO string nets. MUST be 19mm woven webbing, 75 mm max hole size.

Mountings are to be to the Scrutineer’s satisfaction.

Propriety type window net:- this means a well made window net either from a racewear manufacturer or made by an upholsterer.

NO onion bags, woven seat belts or pieces of rope permitted.

Window net must be fastened to roll cage, not body

Recommended that window net be hinged from the BOTTOM.

The quarter window area in front of the window net and behind ‘A’ pillar must be covered with wire mesh, in similar mesh to that being used on the front window area. The quarter window mesh can be cable tied onto the roll cage. This is to prevent either arm or hand from coming out of the vehicle.

5 - BODIES

Mono construction sedan, coupe or hatchback of 4 cylinder manufacture only. Body must be in sound condition. Minimum seating for 4 persons as per compliance plate. Four wheel drive or four wheel steer models not permitted.

a) Race car is to use an original complete metal body with the suspension mounting points in original positions and being used.

b) All fittings such as door handles, visors, ornamental mouldings, body trim strips, wheel trims etc must be removed.

c) All unnecessary flammable material must be removed, e.g. door trims, floor coverings

d) All window glass and lights must be removed

e) Instrument glass permitted

f) Panels which may be replaced with fibreglass/aluminium replica/flexible racing plastic (providing silhouette stays the same) doors, bonnet, boot, front guards, nose

g) Replacement panels must be securely fastened; self drilling (TEK) screws not to be used. Large head pop rivets recommended.

h) Front and rear under bumper stone trays:

1/ front must be original in shape

2/ rear must be of original shape and material

i) Factory OEM wings allowed, After market wings may be fitted to vehicles, wings must be no greater than 150mm in height and 150mm in width. Wing must not protrude outside the body of the car, have no sharp edges, must flush mount to the boot lid and not use post to mount.

Other aerodynamic aids NOT permitted

j) All bodywork, including any subsequent repair of race day damage, shall be to a tradesman-like standard and must permit the vehicle to be presented in as near to original condition as possible

k) Paintwork and signwriting: All paintwork, signwriting and numbers to be neat and attractive and of professional standard.

All vehicles must carry the correct identification number as issued by their club.

This number will be displayed on each side of car and on the roof.

Numbers to be 460mm high x 77mm line width minimum and in a contrasting colour (For lapscorer)

l) Bonnet to be securely fastened. Four bonnet pegs (5 for fibreglass) to be 12mm min to 15mm max mild steel, or approved equivalent.

Bonnet lock pins 3mm min to 6mm max. Heavy duty large reinforcing washers (min 30mm O.D.) to be fitted to all bonnet peg holes.

Similarly, boot lid to be securely fitted, using pegs and large washers as for bonnet. Four pegs for removeable lid. Hinged bonnet and boot lid permitted, using minimum of two pegs and pins. Skeletonising not permitted on hinged panels within 50mm hinges. The hinged panel to be welded to the bonnet or boot skin.

m) Headlight and tail light apertures to be covered with body material

n) The left front door may be cut a max of 150mm to allow for ease of access.

o) Panels which may be removed: Dash panel, boot inner panels, boot floor and/or rear wheel arch sections rearward of the axle centreline provided that they do not constitute suspension mounting points. All other panels are to remain intact.

p) Grille may be fabricated 3mm max F.M.S. but is to resemble original. Plastic or cast original type grilles not permitted. One piece sheet metal permitted if radiator in rear. Must be no thicker than body material.

6- FIREWALL (other than original body firewalls)

Driver must be protected and isolated from mechanical, fuel, electrical and exhaust components by metal firewalls, min 1mm thick.

7- ROLLCAGE

All new cars must be fitted with a complete Roll Cage built to the NASCAR design as used in other classes within ASCF.

a) The roll cage is to prevent the collapse of cabin area under impact.

Roll cage, to enclose the driver, to be full width and full height of the cabin area.

The roll bars are to constitute a cage type framework braced fore and aft.

The cage must extend from behind driver's seat forward to the windscreen area and incorporate protection for the drivers feet.

All barwork is to be inside the body.

b) All roll bar material must be of good quality mild steel, minimum AS1163 Gr200 MINIMUM 38mm O.D.x 3.00mm w.t. CHS (Sonic test at not less than 2.7mm ABSOLUTE)

Aluminium based materials not permitted.

All bends to be made using a pipe bender with the correct size former

Galvanised tubing or welding over threaded tubing is not permitted in any structural bar work.

Water pipe fittings or malleable fittings are not permitted.

Roll cages built using other than fusion welding techniques will not be accepted.

Gussets on welded joints may be required (Daylight inspection)

c) The rear main hoop and main roll cage bars will each be made of one continuous length of tubing, with smooth continuous bends and no evidence of crimping, wall failure or significant weakening. Fig 4(v)

d) Main rollcage hoop to be within 50mm of sides of roof at narrowest point.

Top windscreen bar to be within 50mm of windscreen at front rollcage leg on side elevation.

To assist in fitting of roll cage in dash area, the dash panel may be removed.

Front roll cage leg is to follow the "a" pillar line. Exception: Cars with severe rake of the windscreen. Angle of roll cage "a" pillar bar to be of not less than 45 degrees down from roof bar. Fig 4(ii)

Roll cage legs to be welded to top of a subframe of tubular or angle section running fore and aft. Subframe to be securely welded or bolted to the floor pan/sills using at least four 12mm steel bolts through the subframe and using 100mm x 100mm plates under the floor (min 3mm).

Subframe - A. Tubular min 38mm x 3.0mm w.t CHS

Material - or 50mm x 50mm x 3mm w.t RHS

Sizes - B. Angle minimum 50mm x 50mm x 5mm

e) A one piece diagonal brace, min 38mm O.D. x 3.00mm w.t. CHS will be fitted in the main roll cage hoop behind the driver's head, within 250mm of the corner and down onto the left side rollcage leg. (Top right to bottom left) Fig 4(iii)

A second brace may be fitted in cruciform. The diagonal brace, top right to bottom left, must be one piece. If a cruciform type bracing is used a minimum of 32mm O.D. x 3.00w.t CHS may be used.

f) A mesh screen will be securely welded to roll cage/body in front of the driver. Maximum mesh size 50mm x 50mm Min gauge 3mm

h) An 'anti spear' deflector plate, 3mm steel or 5mm alloy, (NOT to be lightened by drilling) to be fitted on drivers side, from floor-line to window sill bar, forward of the first vertical door bar to the front leg of the roll cage. Fig 4(iv).

Quarter Window bars of no less than 25mmCHS (38mm CHS recommended) must be fitted to both sides of vehicle.

ALTERNATIVELY (for existing race cars only ) Fig 5(i) (ii)

A roll cage built to the STANDARD style of basic roll bars plus an anti-intrusion plate in the area of the driver's door is still acceptable. Specification are as follows:

All materials and sizes given are MINIMUM

All tubing MUST be black pipe or Circular Hollow Section (CHS) to AS1163 Gr 200 min, 38mm OD x 32 mm w.t.

Gussets, plate and angle iron must be black mild steel. The use of GALVANISED or NON-FERROUS materials NOT permitted.

Each roll cage bar, marked A in Fig 5(i) and (ii) must be formed of one continuous piece of pipe, using pipe bender. (NOT heat)

Roll cage legs on each side of the car must be welded to continuous 50mm x 50mm x 5mm angle iron or 42mm OD x 3.2mm w.t pipe, securely welded to floor and sills or bolted in at least four places with 12mm steel bolts through floor and subframe with 100mm x 100mm plates under floor (H)

Diagonal brace in the main roll bar behind driver must run from top right hand to bottom left hand corner and must be one continuous piece.

Seat back support bar/shoulder belt mounting bar is fitted from diagonal brace to right rear roll cage leg.

A mesh screen will be welded to roll cage/body in front of driver, maximum mesh size 50mm x 50mm, min 3mm thick.

Other REINFORCEMENT of car body not permitted.

All welds to be of professional standard.

Additional gussets may be required, subject to inspection

G) ADDITIONAL MINIMUM BARWORK: 38mm O.D. x 3.0mm w.t CHS

Top windscreen bar.

Lower windscreen/dash bar.

Seat back support/Shoulder belt mounting bar

On driver's (right) side: three horizontal side bars, curved out to the door skin, are to be placed between front and rear cage legs, evenly spaced between window sill and cage subframe.

A minimum of two vertical spacer bars, evenly spaced between front and rear roll cage legs, are to be fitted between the cage subframe and the top horizontal bar. ('NASCAR' bars in Fig4(i)).

Passenger's (left) side: Two bars between front and rear roll cage legs. One must be horizontal at window sill height. Optional-Nascar style bars on passenger side.

Minimum of two subframe cross braces at roll cage legs, either 38mm O.D. x 3mm w.t CHS or 35mm x 35mm x 3mm w.t RHS.

Centre roof bar, 32mm O.D. x 3.00mm w.t CHS.

Centre windscreen bar, 25mm O.D. x 3.00mm w.t CHS.

Front and rear bumper support bars may be fitted forward and rear of rollcage at chassis rail width only with rearward brace bars min 34mm. Must attached to top of rear main hoop down onto bumper support bars (see diagram)

H) RUB RAILS - Optional

Mild steel rubbing strip between wheel arches to be 25x25x3mm RHS mild steel only, or alternately, nylon (urethane, nolathane) 50mm x 12mm thick.

Be securely mounted against body at a minimum of 4 points. Bolts must be minimum of 8mm coachhead (cuphead) bolts and be bolted horizontally to bar work.

8- HEADPLATE

* Headplate to be of 5mm ALUMINIUM ALLOY or 3mm STEEL. 25mmx3mm FMS strip to be welded to main hoop, top windscreen bar, centre roof bar and side roof bar. 10 of 50mm x50mm x3mm MS tags acceptable.

* Plate to be mounted from above, with 10 x 8mm (5/16")dia High tensile bolts, 3 each side, 2 front, 2 rear. Heads of bolts to be downwards i.e. no projections.

ALTERNATIVELY A headplate min 3mm steel must extend from rear roll bar to top windscreen bar and from drivers side otuer roof bar to centre roof bar. This plate must be securely welded to these bars with intermittent welding procedure

Head plate may be bowed for clearance, but If head plate has to be raised, the following method must be used.

9 - SEAT

a) Seat must be securely mounted totally on the right hand side of the vehicle centreline in the original front seat area.

b) 4 door cars, No part of the seat may be more than 125 mm behind the rear of the “B” pillar, both measured at window sill height. centre pillar seat. Note - this has yet to be approved.

c) 2 door cars Must not be further back then the rear of the “B” pillar, both measured at window sill height. Note - this has yet to be approved.

Seat base to be mounted to roll cage subframe as per manufactures instructions (commercial supplier) or using a minimum of two points (four points recommended) with 8mm (5/16") bolts and min 40mm diameter body washers.

Seat back to be braced to, and attached to, the roll cage approx 75mm below shoulder height using a min of two 8mm bolts and 40mm washers.

d) A "purpose built' one piece, solid (ie no lightening holes), steel or aluminium bucket type seat, incorporating a substantial head rest, must be used.

No fibreglass or plastic seats allowed. (Phase out before -07/08)

ASCF Approved proprietary line competition seats and mounts permitted.

Spring upholstered or magnesium alloy seats not permitted.

e) Lateral (sideways) support must be given to hips and above waist.

Concave seat to support back to minimum of TOP of shoulder height and width.

Top of head rest to be at least 50mm above helmet to head rest contact area and to be within easy contact of helmet.

Front of seat under legs to be raised and rolled.

Cut-outs for belts to be suitably grommetted.

All seats must be padded and covered, the covering being securely attached. Maximum padding thickness, 50mm.

10- BUMPER BARS

a) OEM type steel bumpers may be used or replaced with max 38mm O.D x 3.2mm w t CHS to same shape and fitted in original position.

b) Late models cars must retain original bumper bars if the OEM bars form the silhouette of the vehicle. Bars must remain if they form an integrated silhouette with the guards. May fit one bar maximum 38 x 3.2 mm behind plastic bar.

c) Front bumper maximum return 300mm - min 100mm

d) Rear bumper returns may be extended as a skid rail against outside of body between bumper and wheel arch, and then extend inward to 'chassis rails'

e) Corner plates on top edges of either bumpers not permitted.

f) Rear override bars - An override bar may be used. Constructed of C.H.S. maximum 25mm OD x 3.2mm w.t it shall be no wider than the boot panel and shall be mounted centrally on TOP of the bumper bar at no more than four points, be VERTICAL and be max 100mm high. Brace bars are not to be used.

Front override bars - An override bar may be used. Constructed of CHS maximum 25mm OD x 3.2mm w.t, maximum 600mm long, 150mm high and mounted centrally on top of bumper at three points only, i.e. it may have a central support.

g) All cars must have lifting provision front and rear for tow trucks.

This may be chain, wire rope, seat belting or ‘U bolt”.

11- STEERING

a) Original type must be used. e.g. Rack remains rack. May be modified, Quick steer may be fitted.

b) Must be in sound condition. Steering joints to be split pinned as required.

c) Wire spoke or wood rim steering wheels not permitted.

d) Steering column to be securely mounted to the roll cage dash bar.

e) Hub of steering wheel to be padded with dense resilient foam and covered.

f) Quick release steering wheels are optional but may be required if Scrutineer decides driving position will make removing injured driver difficult .

12- SUSPENSION

Suspension to remain of standard type as manufactured and to use original suspension mounting points.

a) the use and position of panhard bars and/or sway bars is optional

b) Original front cross-member to be used. Suspension components must attach directly to original mounting points, but can be lengthened and strengthened.

c) No coil-over shocks

d) Original front stub axles and hubs to be of mass produced passenger car type

e) Rear leaf springs are to remain visually standard for and aft of the 'u' bolts

f) Lowering blocks permitted

g) Additional shock absorbers and/or springs not permitted

13- WHEELBASE

To be original manufacturers listing for model used with a 1% tolerance.

14- WHEELS/TYRES

Wheels must be in good condition and free from cracks. Rim edges to be rolled or rounded off if rim protrudes past tire wall. Standard manufactured wheels including aftermarket steel wheels permitted. Welded wheels permitted. No wire or dual wheels permitted.

Flares are allowed to maximum 50mm past original bodyline.

Tyre/rim combination must not protrude beyond flares.

All wheel studs and nuts must be in good condition and used. Wheel nut taper and wheel chamfer must match. Studs must be a firm fit in hub. If OEM wheel studs are less than 12mm in diameter then it is recommend to replace original studs with wheel studs of a larger diameter.

TYRES - RACING TYRES PERMITTED OR RACING RETREADS.

RALLY AND/OR WINTER TREADS PERMITTED

Maximum wheel rims 7” width. (177mm)

BEADLOCKERS ARE NOT PERMITTED

15- BRAKES

Operational hydraulic brakes to be fitted on at least three wheels. Adjustable braking systems not permitted except right front brake may have tap fitted to block brake off whilst racing.

16- FUEL TANK AND LINES

Vehicle’s manufactured fuel tank NOT permitted, and must be completely removed. Fuel tank to be either approved fuel cell from reputable supplier or suitably fabricated tank of minimum 16g steel or aluminium. No plastic containers. No jerry cans. (Phase out-army type jerry can before 07/08),

Maximum capacity 30 litres.

Fuel tanks must be mounted in an upright position. Tank to be centrally located in the boot area. Contact area must be a minimum of 300mm from rear and sides of boot area. Tanks must be isolated from driver by a steel firewall.

Tank to be mounted as per manufacturers instructions (commercial supplier) or in a cradle with rubber buffer on all contact surfaces. Tank must be securely fastened. Boot must be able to be opened for scrutineering and inspection of fuel tank area.

Filler neck of tank must be inside the boot lid ONLY. Filler cap must have tight seal. Boot lid must NOT have holes for refueling.

Area beneath fuel tank must have adequate ventilation in the event of spillage during refueling.

A breather pipe is to be fitted to fuel tank and fitted with a suitable valve to seal in the event of a roll over. Alternatively a pig-tail to be fitted with a breather pipe to pass through the floor directed away from the exhaust system The breather pipe must be lower than the fuel tank and be secured in that position.

Pick up and breather pipes to be welded , silver soldered or braised into tank.

Fuel lines must be first grade neoprene fuel line, securely fastened. Screw clamps only are to be used on fuel line connections.

All fuel lines and electrical wiring must be separated and not taped together, must be fitted with grommets when passing through metal firewalls etc and must be taped and secured where chafing can occur.

Fuel line from tank to engine must pass through the cabin area and is to have a flexible section close to the tank and to be fitted with a quick action NON LEAK fuel tap in working order securely mounted within easy reach of driver and crash crew and clearly marked 'FUEL' ON/OFF.

On advice from Junior Machine Examiners: - For EFI engined cars only - fuel tap not required. The reason being that cars with EFI engines run much higher fuel pressures (~100psi) which may blow out at the tap. EFI cars must use suitable high pressure fuel lines.

NO in tank fuel pumps accepted.

FUEL - Petrol - Unleaded Pump fuel (avgas-phase out-before 07/08) AVGAS not permitted. - See changes 03 April 2007

Fuel to maximum 100 octane unleaded regular service station supply only, no fuel additives allowed.

No additives to fuel permitted.

Methanol is not permitted.

This paragraph refers to MINIS only. It is recommended that for safety, the fuel tank be moved forward from the boot area and be positioned to the left in the rear seating compartment, fully enclosed by a firewall etc.

17- ELECTRICAL WIRING

All switches are to be grouped together and clearly marked on/off within easy reach of the driver with seat belts fastened.

Electric fuel pumps must be connected to the ignition on/off switch. A 'kill switch' must be fitted outside the windscreen in the centre of the cowl panel to control all electrical circuits and must be clearly marked ON/OFF in a contrasting and distinctive colour.

Electrical wiring must be isolated from fuel lines and fuel tank.

Electrical wiring must be suitably grommetted where it passes through metal firewalls etc. and taped to prevent chafing.

18- STARTER MOTOR

At the commencement of the race meeting, race car must be capable of starting with starter motor.

19- BATTERY

Batteries must be securely fastened in a steel frame in the engine bay or mounted in a steel frame secured to the roll cage in the cabin area. ALL batteries must have a rubber cover placed over the top to prevent acid spilling in the event of a roll over. Rubber grommets must be fitted where battery cable passes through metal firewalls.

Blue triangle decal to be placed on body to show battery location

It is recommended that the standard ASCF design battery clamp be used to secure battery as per sketch . If necessary to be notched around battery terminals to ensure adequate clearance and prevent electrical shorting.

20- EXHAUST SYSTEM

Extractors permitted. Maximum noise level permitted - 95dba (or within noise level at each track)

Remainder of system free provided that it has not more than one outlet pipe, it is vented to side or rear behind driver and does not protrude beyond body line.

Internally ducted exhaust system shall vent through the body not higher than 100mm above the door sill panel, and finish flush with the panel, and must use 300mm flex pipe to absorb shock. See diagram

Driver to be suitably insulated from exhaust system. Insulation and firewall sheeting not to exceed 150mm above drive shaft tunnel. If exhaust system is under floor, safety chains will be fitted to front and rear of pipes and attached to floor pan or subframe. Pipes and mufflers must be securely attached to the vehicle.

21- COOLING SYSTEM

a) Cooling system may be modified

b) Radiators may be mounted inside cabin provided that they are mounted as low as possible in the rear of the vehicle and suitably isolated from the driver. The upper half of rear window opening MUST NOT be obscured by rear radiator.

Radiator ducting shroud, if used, to be a maximum of 200mm forward of the radiator and must not obstruct more than half the rear window height.

Radiators mounted in the cabin area must have overflow hoses going through floor.

Cabin mounted radiator must have BOTH tanks covered to protect driver in event of a cap or tank blowing.

Pipes leading to the radiator to be of steel, aluminium or copper tube.

Pipes to be securely mounted on inside of roll cage.

All internal pipes to be ducted or lagged with suitable material

Hoses to be as short as possible and fitted to radiator from rear side.

Exposed hoses or joints not permitted in cabin area.

Fans to have shroud or suitable guard.

22- TRANSMISSION

Ratios are optional but must be from same make or optional model.

Gearbox housing to remain as for the model.

Clutch assembly to be standard replacement for the model. (Optional - racing clutch permitted, single plate only).

Steel strap min. 40mm x 5mm OR 6mm chain to be SECURELY fitted under front and rear of tailshaft to prevent shaft dropping in event of breakage.

Scattershield: Rear wheel drive - minimum 3mm steel must cover upper 180 degrees of bell housing and be securely attached to protect the driver from a clutch explosion.

Front wheel drive - minimum 3mm steel fitted onto firewall.

Differential: Front wheel drive must be locked, rear wheel drive must be locked. Ratios may be altered if crown wheel and pinion only are changed. Housing to be from original model, not complete diff from another model.

Four (4) wheel drive not permitted. Rear axle bearing retained collar rings to be tack welded to axle. MAXIMUM TWO (2) TACKS 5mm long using a small diameter low hydrogen rod on low amperage. If axle is lost and it is found that this has not been done, driver will be penalised.

23- ENGINE

a) Capacity 1650cc absolute maximum.

b) Rotary engines not permitted

c) Engine must be of single cam configuration. - See changes 03 April 2007

2. Cars can be single or twin cam motors of original OEM to OEM cars (like to like). Twin cam engines to be of no greater than 90Kw from manufacturer.

3. All wiring for the computer and engine management system must be visible. No hiding of wiring or false firewalls, etc. No additions to the wiring harness eg. resistors.

7. No mid engine cars allowed (ie. Toyota MR2)

d) Fuel injection not permitted - See changes 03 April 2007

e) Supercharging or turbo charging not permitted.

f) The introduction into the combustion chamber/s of nitro fuels and/or additives, either in solid, liquid or gaseous form (e.g. nitrous oxide) by any means is expressly forbidden

g) Engine block to be of original type and make for model

h) Engine changes permitted if of same make, series, type and configuration as original for the model. Race engines to be based on passenger car engine only.

Manufacturers markings to remain on engine block castings

i) Cylinder head to be of original type, make and configuration as per model, may be modified

j) Engine to be mounted in original position. If resilient engine mountings are used, a wire cable or chain restrain must be fitted.

k) Dry sump lubrication not permitted

l) Oil reservoirs, remote filters, coolers etc to be isolated from driver, mounted securely and not impair vision through cabin area. All connecting hoses, couplings etc, to be correct class of fittings for the purpose.

m) Inlet manifold type optional

n) Carburetion optional but must be under original body line.

o) Ignition optional

p) Camshaft grind optional.

q) Crankshaft stroke not to be increased or decreased relative to the block being used. Must be mass produced passenger vehicle.

r) Return springs must be fitted to each butterfly shaft (inbuilt springs accepted) and one spring to accelerator pedal linkage. Protective wire gauze or air cleaner to be fitted over air intake to prevent entry of foreign objects to the throttle butterfly.

s) ) No roller rockers.