NEW SOUTH WALES LITRE
SPRINTCAR ASSOCIATION

REGULATIONS GOVERNING ENGINE
& CHASSIS SPECIFICATIONS FOR
LITRE SPRINTCARS

Effective: 3rd September, 2001




1.0 Engine

1.1 Capacity of engines shall be as follows:

1.1.1 1500cc + 4% for push rod and single overhead cam.

1.1.2 No Two Stroke Engines to be allowed.

1.1.3 1200cc + 4% for twin overhead cam engines.

1.1.4 1100cc + 4% for engines with more than two (2) valves per cylinder.

1.1.5 Minimum number of cylinders: 4.

1.2 Mazda 10A Rotary is the only rotary engine allowed and must be used without port modifications.

1.3 V.W. motors may be used, limited to 1500cc + 4%.

1.4 Fuel injection may be used on any engine.

1.5 No Supercharging or Turbo charging or forced induction of any type is to be used.

1.6 All cars must be front engined.

1.7 Computer or electronic engine management systems may be used.

1.8 Computer or electronic management systems that are controlled externally or by remote control, (separate from or not controlled by the driver whilst in the car) whilst racing are TOTALLY BANNED. E.C.U. controlled traction devices are TOTALLY BANNED.

1.9 Engines to be used are engines that are mass produced for road registered use only such as - Pulsar, Datsun, Mazda, Fiat, Honda, Mitsubishi, Suzuki, Kawasaki, Gemini, Laser, Barina, Yamaha, VW and Hyundi.

These are current engines being used. All other engine specifications are to be submitted to the Club and State Technical Committee for approval.

2.0 Transmission and Drive

2.1 Drive shall be on the rear wheels only.

2.2 Transmission from the engine to the rear wheels must pass through a de-clutching device such as a Dog Box, Gear Box or mechanically-operated clutch. This device must have an easily accessibly means of disengaging the drive.

2.3 All cars must use a tail shaft type driveline or torque tube.

2.4 No chain or belt drive is to be used.

2.5 All rotating parts within the cockpit must be protected by a suitable guard. It's minimum specifications being 1.6mm for steel and 3.0mm for aluminium.
3.0 Differential

3.1 Any type of automotive differential may be used.

3.2 Quick change differentials may be used.

3.3 Automotive type differentials must be locked so that both rear axles turn.

3.4 All cars must be fitted with safety hubs or flanged rear axles. Cars fitted with flanged rear axles must have the retaining ring tac welded to prevent loss of the axle.

4.0 Front Axle

4.1 Tube type front axles must be a minimum of 38.1mm O.D. by 3.2mm steel tube. (1.500" by 0.120") chrome molly 4130.

4.2 Austin 7 stub axles must not be used nor Austin 7 king pins.

4.3 Disc brakes may be used.

4.4 Duets type cast brake drums may be used.

4.5 If Ford Prefect stubs are used a 6mm steel ring is to be attached to bolting flange and to be bolted in all four positions. All mounts to be bolted through this ring.

5.0 Battery

5.1 Battery must not be mounted in the tail.

5.2 All Liquid Filled Batteries to be covered by a protective covering to prevent spillage.

5.3 All cars must have a suitable device to prevent the battery from being dislodged in the event of a car rolling over.

6.0 Ignition Switch

6.1 All cars must be fitted with a suitable on/off type ignition switch which must be mounted on the dash panel and marked clearly with the ON - OFF positions.

6.2 A kill switch may be mounted on the steering wheel and is optional.

7.0 Throttle Return Springs

7.1 All cars must be fitted with two (2) throttle return springs mounted directly to the throttle linkages so as to return the throttles to the closed position.

7.2 If the car is fitted with rod type linkages a hoop on the throttle pedal is required so the driver can return the throttle manually.

8.0 Radiator and Hoses

8.1 All radiators must be covered by the nose cone of the bonnet.

8.2 All cars must be fitted with canvas reinforced hoses and screw type hose clamps. (NOT WIRE TYPE).

8.3 A pressure relief tap or a pressure relief cap must be fitted with the overflow directed at the ground.

9.0 Fire Walls

9.1 All cars must be fitted with a firewall between the engine and the driver. This firewall must extend from the under tray to the bonnet and must have as few openings as possible.

10.0 Underpan

10.1 Underpan must extend rearward from the front firewall to at least 75mm under the driver's seat and from chassis rail to chassis rail and be securely held in place.

Fuel System

11.0 Jerry cans are prohibited

11.1 The fuel tank must be isolated from the engine compartment and cockpit.

11.2 Tanks must be properly constructed, with all joints lapped, riveted and sweated or welded. Fuel cap to be of type approved by the Technical Committee. (Check before installation if in doubt). When the cap assembly is jointed to the tank with a hose, two (2) clamps must be used on either end of the hose.

11.3 An isolation tap within easy reach of safety crew and fitted in the fuel line between the fuel tank and the carburetor, close to the tank but before the pump, with the ON/OFF CLEARLY IDENTIFIED WITH A TRIANGLE measuring 75mm x 75mm of contrasting colour and fitted beside, below or above the tap.

11.4 Fuel lines must be clipped to the chassis at intervals of no more than 300mm.

11.5 Where a fuel line is subject to vibration as in the connection of the fuel line from any point on the chassis to the carburetor, a flexible pipe must be used.

11.6 ll fuel lines or pipes passing through any metal panel must be grometted to prevent chaffing.

11.7 All fuel tanks must be suitably mounted and isolated from the driver.

11.8 Fuel tank breather must be fitted with a one-way valve.

11.9 Electric fuel pumps must be mounted in front of the differential assembly.

11.10 Fuel cells to be mounted in four positions. With a minimum of a 3mm thick metal or aluminium plate, or a disc with 65mm width or diameter. Connected with a minimum of a 3/8 or 10mm bolts.

12.0 Brakes

12.1 Efficient hydraulic brakes operating on a minimum of three (3) wheels must be fitted, two (2) brakes to be on the rear wheels and one (1) on the left front wheel.

12.2 If a car is fitted with a (one-piece) live axle, one (1) rear brake may be used and one (1) left front brake.
13.0 Nerf Bars

13.1 Bars attached to each side of the chassis and suitably braced to provide a fender for the rear wheels, must be fitted.

13.2 Extreme outside of the bars must not protrude past outside tyre edge.

13.3 All cars must be fitted with:

13.3.1 A rear pusher securely attached to the frame. The vertical down bar is to be extended under and forward from the tail, connection to the rear of the frame or rear pusher under bow.

13.3.2 A front nerf bar securely fitted, to conform as close as practical to the contours of the body line.

14.0 Roll Cage

14.1 Type of material to be used. Condition N4130 chrome molly or mild steel, minimum AS 350 grade.

14.2 Minimum size of material to be used in roll cage to be 31.8mm x 2.5mm (1.25" x .095"). All chassis built to previous rule book will remain legal but if damaged will be required to update to new regulations. This rule will be controlled by the machinery examiner and technical committee. All roll cages outside the new minimum requirements to have a set phase out date as of the end of 1997/1998 seasons.

14.3 The lower mounting points shall be suitably attached to the chassis main frame.

14.4 Bright plating of roll cage is not permitted.

14.5 Either one of three types may be used (2mm test hole may be requested by the machinery examiner):

14.5.1 Two (2) roll bars of single length steel tubing joined by cross bars at the top front to rear.

14.5.2 One (1) roll bar with two (2) side members extending forward and down to the front lower mounting. Each piece to be single length tubing with a cross bar joined at the top front corners.

14.5.3 Two (2) single side rails extending from lower rear mounting to lower front mountings with cross bars at the top front and rear.

14.6 Overhead protection is not to be classified as being part of the roll cage and must not reduce the minimum specified intervals of the roll cage. The minimum interval between the side rails at the top shall be 455mm and the minimum between the front cross bars and the rear cross bars shall be 560mm.

14.7 If overhead protection is used, it must conform to roll cage specifications regarding size and thickness of material.

14.8 Gussets minimum size 19mm x 2mm. (.075 x .083)

14.9 The foremost point of the rear vertical bars at the top cross bar shall be no less than 25mm, rearwards of the driver's headrest with upholstery removed and no more than 100mm rear wards of that point.

14.10 The top of the roll bars shall be no less than 50mm above the driver's helmet with the driver seated in his normal driving position, including seat and upholstery, with his head erect.

14.11 As per figures 1, 2, 3 in illustrations.

14.12 Roll cage is subject to inspection and approval by the Technical Committee during construction, major modification, or major repairs, and following completion.

14.13 No holes whatsoever are permitted in main cockpit bars or bracing unless fitted with tube spuds.

15.0 Nett Weight

15.1 Maximum 500 kg.

15.2 The minimum weight will be 355kgs. Cars will be weighed at the completion of a race and does not include the driver.

15.4 No weights to be added, bolted on or otherwise attached.

16.0 Dimensions

16.1 Wheel Base:

16.1.1 Maximum 1830mm.

16.1.2 Minimum 1650mm.

16.2 Overall Length:

16.2.1 Maximum 3100mm.

16.2.2 Minimum 2730mm.

16.3 Overall Width: Width of 1600mm to be measured from far outside rim to outside rim. (including bead locks)

16.3.1 Width of 1600mm to be measured from far outside of rim to outside of rim (including bead locks). Each axle to be measured independently.

16.3.2 Minimum Width 1330mm.

16.4 Nothing must protrude past side walls of tyres, eg, nerf bars, exhaust, etc.

17.0 Wheels and Tyres

17.1 Tyre and rim width is unlimited provided that when fitted to the vehicle the overall width of the vehicle does not exceed specifications.

17.2 Maximum overall circumference 2160mm (85").
17.3 Minimum overall circumference 1220mm.

17.4 Motorcycle tyres and or wheels shall be prohibited.

17.5 Hub nuts and protruding axles to have an approved safety cover and such cover must not extend in a dangerous manner.

17.6 Cast iron rims are not allowed.

17.7 Right Rear Tyre. Minimum tyre pressure to be 69 Kpa (10psi). This does not apply if proprietary bead locks are fitted.

17.8 Lightening of proprietary wheels is PROHIBITED.

18.0 Steering

18.1 Main construction of steering wheel to be on one (1) piece metal i.e., H/T steel or aluminium - consisting of spokes and rim.

18.2 Wheels must be so placed that the driver has easy entry and exit and has control over the car at all times.

18.3 The Technical Committee may, in the interest of safety, demand adjustment or modification of the steering gear.

18.4 No welding is permitted. Except in the case of proprietary parts that are welded during manufacture. Any components of the steering assemblies are to be crack tested at the request of the Club Technical Committee or the A.L.S.R.A. Inc. Technical Committee.

18.5 No part of the steering linkage shall be brazed.

18.6 Steering ratio shall be such that a maximum of one (1) full turn and a minimum of (1/2) of one turn of the steering wheel is required to move the front wheels from one (1) maximum turning angle i.e., from full right lock to full left lock.

18.7 Non-standard quick release steering hubs are to be approved by the Technical Committee before being fitted to the car.

18.8 Steering stops and heim joints washers optional.

19.0 Exhaust System

19.1 Must be securely attached to the car and must extend 75mm beyond edge of the seat outside the cockpit of the car.

19.2 The end of the low set exhaust pipes must be beaded if exit to side.

19.3 High set pipes on the drivers exiting side, higher than the nerf bar must be directed away from the driver

19.4 Safety chain to be fitted to secure the front of the muffler, if slip off muffler is used minimum specification being 3mm welded link chain or rear strap 25mm x 3mm f.m.s.

19.5 All cars must be fitted with an effective muffler. This muffler must not exceed the maximum D.B.A. reading allowed by state laws.

19.6 The word "muffler" be extended to read "being of sound construction and mounting with a D.B.A. reading of no more than 95 D.B.A. measured 9m parallel from the vehicle".

19.7 Sound construction excludes slotted pipes, chicken wire inserts and perforated beer cans, etc. These are STRICTLY FORBIDDEN.

20.0 Seat Belts

20.1 All cars must be equipped with a five (5) point safety belt securely attached to the chassis at a minimum of 5 points and fitted with a quick release buckle and made by a recognized seat belt manufacturer as approved by the Technical Committee.

20.2 Riveting of joints is NOT ALLOWED..

20.3 Should a serious accident occur, the Chief Steward has been deemed the Authority to confiscate the belts in question.

20.4 Seat belts are to be suitably retained near the top of the seat to prevent them from spreading at the shoulders.

20.5 SEAT BELTS MUST BE WORN AT ALL TIMES.

20.6 A suitable bar should be fitted to your chassis, behind your seat to retain seat belt height of no less than 75mm below shoulder height.

21.0 Bonnet

21.1 Bonnets must be securely fastened by strap or other approved fastener. Tool operated fasteners are NOT PERMITTED.

21.2 Locking of bonnets is PROHIBITED.

21.3 Any engine compartment flow through ventilation must not exhaust into the driver's face. All flow through ventilation must exhaust out the side. Any open-topped bonnets must be capped with a minimum of 25mm overlap of opening and be sealed at rear. Cap spacing to be a minimum of 25mm above opening.

21.4 All bonnets to be sealed at to rear.

22.0 Body Work

22.1 Cars must at all times have a properly constructed removable top wing, securely attached to roll cage.

22.2 Cars must be complete and neatly executed with no loose or insecure panels.

22.3 Tail ends of fuselage are compulsory and must extend beyond the rear wheels and must be the same shape as speed cars and sprint cars.

22.4 All cars must be painted and appear at the track in a presentable manner.

 22.5 Cockpit side protection panels can extend to rear most down bar of roll cage, the horizontal point of this panel must not be higher than the bottom. Edge of the driver's helmet and must not hinder the drivers vision

22.6 High back seats are mandatory and are to be of contoured form affording to upper thighs and base of spine. Back support to be a minimum of shoulder height. Head rest section of extend to at least the top of the helmet. To be of sound aluminium construction minimum thickness 1.6mm to be plated at mounting points and to be safety edged. All seats are to be reinforced in the through bolt area and back support and head rest to form a one piece construction.

22.7 All cars are to have bracing under seat and a plate 150mm x 200mm x 3.0mm steel or 150mm x 200mm x 6mm alloy to protect under side of seat.

22.8 ALL CARS MUST BE FITTED with a mandatory Torque Tube Hoop/Strap.

22.9 ALL CARS MUST BE FITTED with a mandatory right side helmet restraint (net) with the option of fitting a quick release left side helmet restraint (net).

23.0 Wings

23.1 All cars to be fitted with a wing securely mounted on the top of the roll cage in four (4) separate positions as far apart as possible.

23.2 The wing, when mounted in its most rearward position, must not extend past the rear crash bar (e.g., 150mm forward of rear crash bar). Rear stays bolted outside of roll cage and long enough not to enter cockpit area in event of roll over.

23.3 The maximum width on wings shall be 1270mm, measured at the extreme outside edges of the wing, including all bracing.

23.4 When the wing is mounted on the vehicle a minimum of 50mm of tyre must extend past the outside edge of the wing (measured to the side walls of the right rear tyre or the wheel rim, whichever is the furthest point). Measured in the vertical plane with the car in race ready trim. If the top wing extends past the extreme left hand tyre it must be centrally mounted.

23.5 Cockpit side protection panels can extend to the rear most down bar of roll cage, the highest horizontal point of this panel must not be any higher than the bottom edge of the drivers helmet and must not hinder the drivers vision.

23.6 All wings to be constructed in a safe manner, being of metal construction with a steel or aluminium frame, welded, bolted or riveted together. The metal covering must be bolted or riveted to this frame. Suitable bracing must be used to stop the sides of the wing from flexing or becoming detached from the wing. All horizontal edges are to be safely beaded.

23.7 Small front wings may be used.

23.8 Wing fasteners must be attached independently of the wing mounts.

23.9 All top wings to be mounted with quick release type fasteners.

23.10 A parallel horizontal gap minimum of 200mm to be between the top of the cockpit side panel and the bottom edge of the right hand wing side sheet.

24.0 Windshields

24.1 If fitted, must be flexible celluloid construction. Edge to be bound with tape or rubber.

25.0 Presentation

25.1 All cars shall be constructed and presented in a neat and clean manner.

25.2 All sharp and protruding edges on cars shall be:

25.2.1 Covered with a protective padding.

25.2.2 Rounded off so as not to present a sharp point.

25.3 Split pins or locking nuts MUST BE USED on all external bar work.

25.4 Car numbers shall be clear and easily identifiable.

25.5 The numbers are to be placed on:

25.5.1 Both sides of the big side of the wing. Minimum size being 380mm in height and to be of a distinct contrasting colour to that of the wing on the inside but be smaller on the outside. To be a minimum of 250mm.

25.5.2 Both sides of the tail end of fuselage (minimum size of each individual number being 250mm x 50mm).

25.6 No advertising signs or drawings will be allowed on the tail of the car if such advertising obstructs or prevents the recognition of that car's number.

25.7 Any number on a car that may be misconstrued as being a racing number may be deemed illegal by the Chief Steward.

26.0 Chassis

26.1 Main rails as per figures 4 & 5 in illustrations.

26.1.1 To be of a minimum of 25.5mm x 2mm (1" x .083 ").

26.2 Minimum size of material to be used in chassis excluding roll cage and main chassis rails to be 19mm x 2mm (.750" x .083").

26.3 No holes whatsoever are permitted in main chassis basis or bracing unless fitted with tube spuds.

26.4 All bolts without lock nuts must be drilled and lock wired.

27.0 Fuel

27.1 Alcohol fuel only permitted. Fuel containing any petroleum based additives, nitro methane, or other oxygen producing additives not permitted.

27.1.1 Maximum Specific Gravity Permitted is 0.800. All fuels are subject to testing at any time, any deviation of these specifications will result in the immediate disqualification of those in question.

28.0 Helmets and Protective Clothing

28.1 HELMETS: Open or full-face type are permitted. Full face are strongly recommended. Helmets must comply to A.S.A. 1698 1985 or Snel Foundation.

28.1.1 HELMET LIFE: A maximum life of 4 years from date of purchase (Proof Required) is to be strictly enforced with a maximum helmet life of 6 years from date of manufacture.

28.2 FACE MASKS: An approved face mask may be worn which must not contain any metal protective parts.

28.3 GOGGLES & VISORS: To be shatterproof, and non-splinterable type material.

28.4 SPECTACLES: Where optical lenses are used they must be of shatter proof material.

28.5 FOOT WEAR: Fully enclosed boot. NO canvas or synthetic plastics are permitted. FIRE PROOF BOOTS ARE STRONGLY RECOMMENDED.

28.6 SOCKS: To be 100% FIRE PROOF material.

28.7 RACE SUITS: To conform to NASR/FAS minimum standard.

NYLON OR NON FIRE PROOF SYNTHETICS OF ANY DESCRIPTION ARE NOT TO BE WORN WHILST RACING.

28.8 BALACLAVAS: FIRE PROOF ONLY. MUST BE WORN AT ALL TIMES.

28.9 GLOVES: THE WEARING OF FIRE RETARDANT GLOVES IS MANDATORY. All gloves to be a minimum of gauntlet length and the cutting out of fingers or thumbs is strictly prohibited.

28.10 Drivers are directed to remove all dentures before racing.

28.11 NECK BRACES: Made of an approved design and manufactured from flame proof material are to be used by all drivers and are MANDATORY.


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