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| IFMAR Large Scale World Championship 2001 |
| Below are the rules for the 2001 Large Scale World Championships |
| As this is a rather large document it has been split into two pages. Page One |
| 4.1 POSITIONING |
| Mechanic must be positioned under his driver's position. During finals, positions will be selected by drivers in order of qualifying position, i.e. No. 1 qualifier has first choice, No. 2 qualifier has second choice, etc. |
| 4.2 GENERAL STARTING PROCEDURE |
| HEATS - |
4.2.1 There must be a 5 minute gap between the end of one heat and the start of the next.
Also a minimum of 3 minutes must be allowed between the issuance of the transmitters and the start of the heat. |
4.2.2 An audible warning will be given in English language at 1 minute and at 30 seconds during the warm up period.
At the starting time an audible and visible signal will be given for a rolling start. |
| SUB-FINALS AND FINALS |
| 4.2.3 No refuelling allowed in the pit lane or on the track, after the warm-up period has started. |
4.2.4 At 5 seconds, the starter will lower the starting flag and at 3 seconds, the flag will be down, touching the ground.
At this time, cars must be released by the mechanics who will move behind the hold line. The cars must remain in the boxes, no part of the car touching the starting line. |
| 4.2.5 From 3 seconds, the counting stops and the start signal must be given by the starter between 0 and 5 seconds. If the grid is not to the satisfaction of the starter, he may command a re-start, beginning count down from 30 seconds. |
| 4.2.6 The official starting signal will be audible by means of a horn operated by the starter. This signal will also start the timing systems. |
4.2.7 Early starts - ALL FINALS ONLY.
Early start (i.e. any car touching the starting line) will be penalised with a ten (10) second top and go penalty. This penalty is issued by the starting official or the time-keeping official and has to be announced immediately after the start. The penalty will be marked on the result sheet. |
| 4.2.8 Under no circumstances will the race be stopped due to a jumped start. |
| 4.2.9 Only the Race Director may interrupt the race and order a restart in the event that he considers the starting procedures or the start were not carried out correctly. |
| 4.2.10 DELAYED START |
| As long as the starter has not called the cars to the starting line, every participant of the semi-finals and the final may request a delay of ten (10) minutes for repairs on his car. The delay will be granted only once for each semi-final and final. |
The driver asking for delay has to start from the back of the grid (last position).
The track shall be closed to all cars during the delay period when the delay was asked for a frequency problem. When the frequency problem was created by race control, the driver keeps his starting position. |
| 4.3 MARSHALLING/ACCIDENTS/CRASHES |
a) A yellow flag will be shown and announced, if an accident occurs. (This must be a yellow flash-light combined with an audible signal, that can be operated by the Referees and the Race Director). During the yellow period overtaking other cars is not allowed. Cars are required to slow down so that they can stop immediately. Disregarding this rule will be penalised by deducting one lap from the result of the driver concerned in that particular heat, sub-final or final. An official warning has also to be issued.
Racing will recommence at racing speed following display of a green flag or the official announcement "track is clear". Signals given by flags have to be visible for all drivers. |
b) One mechanic for each driver is allowed to enter the track to save the car of his own driver.
The mechanic has a maximum of three attempts to restart the engine beside the track, but not repair the car. The mechanic may not disturb the progress of other cars in the race. Mechanics or spectators entering the track from outside the pit lane to save a car will produce a penalty for that particular car. (Penalties can be given as stop and go or one lap penalty. The Referees will inform
the Team Managers about the type of penalties given). If served by a spectator then this car should remain stationary until touched by the mechanic to save a penalty being given. |
| 4. RACE PROCEDURES |
| It is not allowed to drive a model car on any other place than the track and the marked pit lane. |
| 4.4 TECHNICAL INSPECTION |
Only vehicles which conform to all regulations will be accepted for racing. Technical inspection will be done on Sunday and Monday. The cars will be examined and, if the car conforms to the rules, the chassis and the fuel tank will be marked. At any time, the Race Director may ask the competitors to present their cars to the Technical Inspector. Random inspection will occur on the start line for numbers, tyres, wings and chassis.
No race will be delayed because of non-compliance by a competitor. Technical inspection may take place at the finish of any heat. Any race damage will be taken into account. At the end of finals, all cars will be impounded and may be inspected for engine size, fuel tank capacity, etc.
Any infringement concerning engine, fuel tank and weight will cause disqualification from a driver's best qualifying heat or a final. A second infringement concerning any one of engine, fuel tank or weight, will cause total and immediate disqualification from the entire event. Any infringement, other than those concerning engine, fuel tank and weight, will cause disqualification from that heat or final.
Under all circumstances it is the responsibility of the driver, that his car is within the IFMAR rules during a race meeting. If a car is found illegal during heats, semi-finals or final, its result will be made void and the car has to stay in technical inspection until the result is published and the protest time is over. |
| All cars must be fitted with a clutch, a braking system, an air box to reduce the intake noise of the carburettor and an three-chamber exhaust. |
| The engine and fuel tank may be checked at any time. |
The volume of the fuel tank will include all fuel piping and filters up to the carburettor.
Following method of measurement will be used:
The fuel tank must be empty. A measuring cylinder (DIN) of 700ccm will be filled with the competitor's fuel. Then this fuel will be placed in the tank. If the tank is not filled completely, the technical inspector will not accept that tank. |
| * Only one car per driver will be accepted. |
| * The chassis plate and the fuel tank and two engines of each car will be marked with the competitor's number. |
| * Only one chassis may be used for all qualifying heats and finals. The only exception to this rule will be in the case of a broken or bent chassis which may be changed with the Race Director's approval. The new chassis of the same type must be presented to Technical Inspection for marking before re-building the car. The old one will be stored in technical inspection until the end of the competition. |
| 4.5 FREQUENCIES |
In the case of two drivers using the same frequency and qualifying for the same final, the higher placed driver may keep his frequency and the lower placed driver must change. The time allowed for frequency change will be ten (10) minutes. The lower placed driver who cannot or will not change his frequency may not take part in the final for which he qualified.
If a driver must change his frequency before the start of a semi-final or a final, due to an organiser's error, he will be allowed ten (10) minutes. If a driver finds his radio defective or has made an error in the selection of his frequency at the start of a final, the race will not be delayed.
For the entire duration of the event, the frequencies in use by all drivers will be known only by the Race Director and each individual driver. |
All frequency changes must be authorised by the Race Director before the change is made.
The organiser shall not display any driver's transmitter frequency on any heat sheets, result sheet or race schedule to preserve the security of the frequency control systems. Each driver in the Main Final shall be permitted to change his frequency before the start of the race. Only the Race Director is permitted to know the frequency used by the main finalists. |
| 4.6 LAP COUNTING TRANSPONDERS |
| Each participant is responsible for attaching the lap counting transponder to his car. During qualifying, any car starting without a lap counting transponder will not be counted. If a lap counting transponder fails or falls off during the heats, the vehicle will be timed and counted manually, if possible. In this case, the Race Director will verify the results and his decision will be final. During the final, any car without a lap counting transponder will be counted manually by a manual back-up system. Under no circumstances will a heat or a final be re-run due to a car not having a lap counting transponder or failure of the same. This also applies to a car not having the correct numbers and placement of these numbers. |
| 4.7 FLAGS |
| Start - green flag or national flag |
| Finish - chequered flag for final only |
| Blue - The car which is blue flagged must allow the car behind him to pass |
| Yellow - Danger on the track - slow down, overtaking forbidden. (Must be a yellow flash-light visible for all drivers on the rostrum) |
| Black & white - Official warning to the car which is flagged (diagonal) |
| Black - The car in question must stop immediately in the pits |
| Green - Track open |
| Red - Track closed. All cars must stop immediately. |
| The black and white diagonal and the blue flags are recommended but are not compulsory. All flags are under the direction of the Race Director who can delegate and authorise their use. |
| 4.7.1 USE OF THE BLACK FLAG |
| - Drivers who impede the progress of other participants |
| - Un-sportsmanlike racing and behaviour of driver/mechanic |
| - Participants driving in a manner deemed to be dangerous by the Race Director |
| - Cars judged by the Race Director to be in an un-driveable or dangerous condition. These cars, after the repairs have been carried out, may be allowed to resume. |
| - Cars which lose their bodies or silencers must immediately stop and carry out the necessary repairs after which they may restart. |
| - Cars found exceeding the IFMAR noise level of 81 dB(A). |
| - Cars which have been black flagged may re-enter only with permission from a Race Official. |
| 4.8.1 Protest Against a Competitor/Organiser |
| Protest must be entered by the Team Manager, in writing, in English language, within ten (10) minutes after the display of the result or after the incident it concerns, with a deposit of $50 U.S. or equivalent. The time of display of the result will be written on the result sheet. |
The deposit is forfeited if the protest is not upheld and the deposit is returned if protest is justified.
Protests may be handed to the Race Director or an IFMAR Official. Protests are processed by the Race Director and, if necessary, by the Jury. Appeal to IFMAR may be made. IFMAR is not obliged to handle such appeal. Deposit returned if protest is upheld. |
| 4.8.2 Requests For Lap Counting Checking |
Requests do not need to be written and need no deposit. The Team Manager will show to the Race Director the time-lap sheet in question (the one given or displayed by the organizer) and will indicate where he thinks an error has been made.
The Race Director will resolve the problem by checking with the second lap counter and, if necessary, with the manual record of stops. |
The audio/video tape may be used as a last resort, if necessary, for the final result.
If the request is justified, the result will be modified immediately and the Race Director will advise the Team Manager, in writing, of the result. After checking, if the Team Manager persists with his request, he will have to present a written protest within ten (10) minutes, including a $50 U.S. deposit. |
| 4.9 PENALTIES AND SANCTIONS |
During finals, participants will be allowed to change the bodies of the car with the authorisation of the Race Director, providing the bodies are of the same type and painted in the same colour scheme. In the event of a different body being fitted to the car, the Race Director must give his permission before the participant re-enters the race.
Any illegal modification or change made to the car which is found during the technical inspection at the end of the race will automatically entail disqualification of the participant. |
| EXCEPTIONS: Tolerances allowed in technical inspection for fuel tanks +1%. |
| Any damage incurred during a heat or final will not entail a forced stop or disqualification of the participant except in the following cases: |
| - loss of a body (the spoiler does not count as part of the body). |
| - loss of the silencer or its ability to silence the engine. |
| - a car which becomes dangerous or un-driveable. |
| The car in question may re-start after the repairs have been effected. |
| Any car which, by the fault of another driver, is damaged or obstructed during a heat or final cannot, under any circumstances, be allowed to re-run in another heat. |
| All participants must strictly observe the instructions given by the Race Director, Jury and Referees. The bad sportsmanship and behaviour of any competitor, even outside the official race meeting, which could injure the image and promotion of the sport, may become the object of an official, national or international sanction. |
| 4.10 OFFICIAL ANNOUNCEMENTS |
| All official announcements concerning the race must be made in the English language in the pit area, drivers' stand and mechanics' area. |
| 4.11.1 REFEREES |
The main task of the Referees is to observe the racing and, in particular, the good sportsmanship during the racing. They will ensure that the current rules are observed by everyone.
Referees may be called for information by the International Jury when a meeting is called by the Race Director. |
| One (1) IFMAR Referee will be appointed by IFMAR. Travel and accommodation expenses will be paid for by IFMAR, EFRA, ROAR and FEMCA equally. The IFMAR referee will be supported by two (2) appointed deputy Referees, one nominated and paid for by the host Bloc and one nominated and paid for by the host Country's Association (see General Rule 1.12). They must be experienced and unbiased people with good knowledge of the English language and the IFMAR rules and have acted at least at national level before. A back-up Referee must be nominated by each organisation in case of absence of the official Referee. |
| Referees must be provided with an area from where all parts of the track, the driver's rostrum and refuelling area can be observed. The place must be separated from the driver's area to ensure a quiet and undisturbed working area. Protection (walls, roof, etc. ) must be given against all weather conditions. The place must be equipped with a minimum of three (3) chairs, a table and monitor connected to the lapcounting system to show the race order. There must be a separate communication system with a microphone and speakers direct to the driver's rostrum and the pit lane to enable Referee's instructions to be heard only by the drivers and the mechanics in the pit lane. |
| N.B. This system is to be totally separate from any public address system used for announcements. The organiser is responsible for providing the Referees with lunch, refreshments and a ticket to the Awards Banquet. |
| 4.11.2 REFEREES' DUTIES |
| At all times, during qualifying heats, two of the Referees present will be watching and observing the racing from start to finish. During finals, all three Referees will observe the racing from start to finish. During qualifying, the Referees work on an alternative relief schedule. Only Referees on duty are authorised to make decisions and to issue warnings and instructions. A Referee may take action after an initial warning but, in all cases, three (3) warnings means automatic disqualification from the event. Any appeal against the Referee's decision must be brought before the International Jury accompanied by a protest fee. |
| 4.11.3 GUIDELINES REGARDING OFFENCES |
| 1 - Bad sportsmanship during racing, i.e. impeding progress of other participants, deliberate slowing down or walling of another car, deliberate short-cutting of corners and reckless driving in general. |
| 2 - Un-sportsmanlike behaviour of drivers, mechanics and Team Managers involved in the racing. |
| 3 - Incorrect use of entry and exit of the pits. |
| 4 - Repairs outside the appointed pit area. |
| 5 - Any combination of three warnings will cause disqualification. |
| 6 - Instructions may also be given by the Referees but they do not constitute a warning. Sample of instructions follow under numbers 7 and 8. |
| 7 - Cars that do not conform to the regulations before the start is given or during the race, (i.e. loss of body-shell, exceeding noise rules due to loss or damage of the silencer). |
| 8 - Cars that are in an un-driveable or dangerous condition due to damage or malfunctioning of the car (one instruction). |
9 - Starting procedure, i.e. writing down early starts and, if necessary, reporting to the Time Keeper. The Time Keeper and the Starter are first responsible to issue starting penalties (10 sec. stop and go penalty). In the event of an early start not being observed, it may be called and noted by the Referee.
10 - It is not the duty or the responsibility of the Referees to check if the cars conform to the technical rules. This is always the responsibility of the Technical Inspector. |
| 11 - All warnings will be announced in the English language with the words: "Car number ....Warning". All instructions will be announced in the English language with the words: "Car number.... Stop". Each competitor must be able to recognise the above English words and statements. |
| 4.11.4 REFEREE'S AUTHORITY |
| 1 - The Referee issues warnings in case of infringements of any point as described under 4.11.3, and ultimately may even issue a black flag (disqualification) when there is no response to his warnings. |
2 - Warnings and instructions are announced by the Referee himself. He will keep a record of the warnings and instructions used (Referee's notes).
Three successive warnings lead to disqualification (black flag).
Instructions issued by the Referee must be observed immediately. All announcements must be made in the English language. Warnings will be posted on the result sheet. |
3 - Reasons for warning or instruction will be announced in the English language at time of issue.
Further explanation, if necessary, due to language difficulties, will be given to the driver or the Team Manager at the end of the race. |
| 4 - Under no circumstances may a warning or an instruction issued by the Referees lead to the interruption of the whole race. |
| 5 - During the event, only if all three Referees agree, they will have the authority to black flag a driver and/or a whole team, if one member of that team is positively interfering with the racing of another car in the event. |
| 6 - Appeals to the decision of the Referee must be addressed to IFMAR in writing. IFMAR is not obliged to act on such a complaint. |
| 4.11.5 REFEREE'S REPORT |
| Referees make up a report to be sent to IFMAR within ten (10) days. The report contains information on the organisation, accommodation and the racing. The Referee's notes have to be included. A copy of the report is sent to the Organizer of the race meeting. Copies may be obtained on application to IFMAR. |
| 4.12 TIME-KEEPING SUPERVISOR |
The Time-Keeping Supervisor is responsible for recording all the individual lap times and total laps plus finishing time of all drivers during all heats and finals. He is responsible for the classification of the results and for selecting of the finals. The Race Director must verify this classification and selection.
After the finish of any heat or final, the results of the first and second time-keeping systems are compared by the Time-Keeping Supervisor and, in case of difference between the two systems, the Time-Keeping Supervisor investigates both results and makes the decision of the final result.
In case of a request for checking of the results, the Time-Keeping Supervisor, together with the Race Director, will check on the questioned result and will make the decision. |
| 4.13 INTERNATIONAL JURY |
The International Jury consists of official representatives of each Bloc, which will furnish a minimum of one representative and a maximum of three representatives to serve on the International Jury. Each Bloc will have a total of one vote, regardless of the number of representatives it supplied.
The Chairman of the Jury is the IFMAR President. In his absence, the next ranking IFMAR official, not already serving on the Jury, will be the Chairman. The President may appoint a representative as Chairman in his absence if an IFMAR official, not already on the Jury, is available.
The Race Director and IFMAR President (see above) are members of the Jury but do not have a vote in the decisions.
The Referees may be called by the Jury for opinions and explanations as deemed necessary.
All decisions are taken by simple majority vote. The International Jury may request evidence and/or presence of drivers involved or Team Managers.
Jury members must be approved by their organisation and a second person appointed to serve in the event of a temporary absence of the official representative. |
| 4.14 Responsibilities of the International Jury |
| 1 - To decide in unforeseen situations. |
| 2 - To handle protests not covered by the Race Director's responsibility. |
| 3 - To make official by announcement any decisions voted on by the Team Managers' Committee providing the International Jury agrees with these decisions. |
| 4 - To check that the race is run according to the official rules. |
| The Chairman of the International Jury will make official the results of the World Championship through the ranking IFMAR Officer present at the event. |
| When necessary, the Race Director calls the International Jury to meet. The International Jury may also be called by IFMAR. |
| The organiser will provide a room for the International Jury to meet where no-one can interfere with the meeting. |
| Jury members may not have dual duties or be a race official but may act as a Referee and IFMAR Delegate. The Race Director may appoint a stand-in Referee, if required. Jury members may be participants in the event but must allow auxiliary jury representatives to serve and vote in any protest involving said jury member as a participant. |
| 4.15 RACE DIRECTOR |
| The Race Director is responsible to follow the schedule of the event. |
| The Race Director ensures that various tasks under his responsibility are well done, including: |
| - Time-keeping |
| - Starts |
| - Marshalling |
| - Display of results |
| - Comments to the public |
| - Comments to the drivers |
| - Technical inspection |
| - Frequency control |
| The Race Director receives the protests and decides if the International Jury has to meet. He takes urgent decisions or stops a race for safety, rain or any other unforeseen situation. He is under the authority of IFMAR. |
| 4.16 ASSISTANT RACE DIRECTOR |
| The Assistant Race Director will represent the host country or organisation and will assist the Race Director to co-ordinate all race matters with host organisation officials. |
| 4.17 TEAM MANAGERS |
The Team Manager, or a nominated deputy, must be present during all official racing. The Team Manager is appointed by his national association. The responsibilities of the Team Manager are:
- To be present at the drivers' registration of his team. |
| - To be present at the Technical Control either before, during or after the end of the race in which his team members participate. |
| - To look after the welfare and behaviour of his team and take care that they all receive proper accommodation in the pit area. |
| - To attend the Team Managers' Meeting and any driver briefing/s that the Organizer may call. |
| - The Team Manager is the link between the national team and the race direction by receiving all information referring to timetable changes, frequency changes, results of heats, sub-finals and finals and all other information referring to the race. |
| - He is allowed to stay in the pit area when a race has a participant from his team and is in progress. |
| 4.18 TEAM MANAGERS' COMMITTEE |
| Each country will have a Team Manager who is responsible to pass on complaints, protests or suggestions from his team to the Race Director. The Race Director will then decide whether a Team Managers' Meeting should be called to discuss and vote on the matter raised. If the Race Director does call such a meeting and the majority of the Team Managers support the matter raised, the Race Director must then refer to the International Jury for final decision. |
| 5. GENERAL TECHNICAL SPECIFICATIONS |
| 5.1 There is one series to recognise in accordance to the 1:1 scale series, namely FIA Class 2. |
| Super Touring Car (4-door cars) minimum length 4200mm/165.35 in. |
| FIA Group N (only 4-door cars, minimum length also 4200mm/165.35 in.) |
| 5.2 No refuelling allowed during all racing for 1:5 Touring Cars, (with the exception of the main final, official ten (10) minutes maintenance break). |
| 6. TECHNICAL SPECIFICATIONS |
| 6.1 All 1:5 cars have to be genuine scale in all details and proportions and be a fully detailed model of an existing 1:1 touring race car. If the allowed tolerances are used then all parts of the model in that particular view have to be within the same sign (wheel-base -, length - //wheel-base +, length +). Mixtures of car designs are not allowed. |
| The minimum length of a Super Touring Car is 4,200 mm/165.35 in. that gives a minimum length of 798 mm/31.41 in. in scale including max. -tolerance. |
| No model car can be used in IFMAR racing longer than 2 years after the real 1:1 car was replaced by a new type, or has retired from the Championship racing. Only bodyshells that are approved by IFMAR and listed on the IFMAR 1/5th Scale Bodyshell List will be allowed to race. Six (6) months prior to the event, IFMAR will send a notice to all known bodyshell manufacturers. Bodyshells must be submitted by manufacturers to IFMAR for approval four (4) months prior to the event. The homologation number has to be permanently engraved or moulded in within the space normally used for car-registration numbers at the rear end of the model. |
| 6.2 GENERAL SPECIFICATIONS |
| The car body has to comply with the calculated scale dimensions 1:5 with the allowance of using the following tolerances; |
| Length: within scale +/- 5% |
| Width: within scale max 395mm/15.55 inches excluding side mirrors |
| Height: within scale +/- 5% |
| Tank capacity: 700 cm³ incl. fuel pipe to the carburettor |
| Minimum weight, without fuel: 9,500 g/20.94 lb. |
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| 6.3 CAR |
| The car has to have a functioning brake, which has to be capable of keeping the car stationary whilst the engine is running. |
| A mechanical failsafe has to be fitted to the carburettor which returns the throttle to a closed position in case of breaking of the throttle linkage. |
| Variable ratio transmission is not allowed. |
| Only 2WD (rear-wheel drive) cars are allowed. |
| No other function than steering and throttle/brake are allowed to operate with radio control by the driver. Any other electronic or hydraulic systems are not allowed in the car, with the exception of electronic/hydraulic failsafe to stop the car in case of radio failure. |
| The position of the ignition cut-out switch must be marked on the bodyshell with a white circular decal, 30 mm/1.18 in. in diameter, outlined in red with a red 'E' in the centre (see drawing below). The switch must be located within the rear window away from hot or moving parts. |
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| 6.4 BODY |
Bodies have to follow the description in point 6.1. They have to be properly fixed to the chassis and must cover the outer edge of the wheels at the centre of the axle when viewed from the top .
It is not permitted to cut the windscreen out. The side and rear windows may be cut out for cooling. It is not allowed to open them by cutting out only some holes. Also it is not allowed to mould air channels into the side windows to guide air into the interior. |
| The body shells have to be painted and all windows to remain clear. |
| All parts of the car have to be covered by the body. Only the radio antenna is allowed to come outside. All openings in the body have also to be in the existing 1:1 race car. It is not allowed to modify the car-body by cutting it over the marked trim lines or to widen it by heating it or parts of it. |
| Only allowed for manufacturers: |
| Aerodynamic modifications at the front, the sides and the rear below the wheel hub centre are free subject to the requirements for ground clearance, overall length and overall width. The modifications have to correspond to the original. The material has to be the same as that of the bodyshell. The homologation number has to be engraved. A photo of the modification 1:1/1:5 has to be sent to the responsible IFMAR Homologation officer. |
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| 6.4.1 GROUND CLEARANCE |
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The measurement of the bodyshell height will be made with 6 mm/ .236 inch ground clearance. |
| 6.4.2 WING/SPOILER |
| One rear wing is permitted as long as he do not exceed the front view profile and the length of the car. He has to fit in a side "profile box" measuring 60 mm/2.36 in. x 60 mm/2.36 in. per side and should not overhang the end of the car. |
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| 6.5 BUMPER |
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A bumper has to be fitted to the chassis. Bumpers have to be designed in a way that they fill the front of a car body completely and be a minimum height of 40mm/1.57 in. The material used has to be flexible like PU-RIM or other foams that are used in 1:1 car construction to absorb impact energy.
At no point may any part of inflexible material for bodyshell mounting protrude from the body more than 10mm/.39 in. |
| 6.6 TYRES |
| Rim diameter max.: 107 mm/4.21 in. |
| Rim and fitted tyre Diameter: max.: 136 mm/5.35 in. |
| Rim and fitted tyre width - front max.: 75 mm/2.95 in. |
| Rim and fitted tyre width - rear max.: 80 mm/3.14 in. |
| Tyres have to be black and only semi-pneumatic rubber. The design of the tyre profile is free. Foam tyres are not allowed. |
| The chemical treatment of tyres by adding any tyre traction moistures or other chemicals/additives is not allowed. Tyre cleaners are not allowed. |
| 6.7 ENGINE AND FUEL |
| 1. The engine to be a single cylinder, 2 or 4 stroke, maximum 23 cm³, pull start. |
| 2. No Turbo charging, Fuel injection, Supercharging, Wankel or rotary valve/distribution engines are allowed. |
| 3. All ignition timing must be mechanically fixed, only manual static adjustment is allowed. |
| 4. No Battery operated ignition allowed. Only a passive ignition system using R.P.M. as the single input parameter is allowed. |
| 5. Only open deck admission ports are allowed, the side walls must be parallel. |
| 6. The Cylinder block must be of a single casting. No independent liners or slipping liners are allowed. |
| 7. The maximum number of admission/transfer ports is limited to four (4). |
| 8. Engine must be air-cooled, the air being driven directly by the flywheel. |
| 9. The crankshaft must be of split shaft configuration, with enclosed big end. No half crankshafts allowed. |
| 10. An air filter must be fitted to the carburettor. The maximum venturi diameter of the carburettor is limited to 13mm/.51 in. |
11. Only fuel allowed will be unleaded petrol available and purchased at automobile service stations.
Special fuel like Avgas, race fuel etc. are strictly forbidden. The only additive allowed is oil.
Fuel tests may be made at random during the race. If a fuel is found illegal by the official analyser, the driver will be disqualified from that particular race, he/she may lose his right to participate in IFMAR races up to ten (10) years. |
| 12. Each driver is only allowed to use a maximum of two (2) engines per event. The crankcase of the two engines will be marked with the entry-number + digit 1 and 2. Technical inspection must be informed, when the competitor changes the engine and will make a report notice. Marked engines can be rebuilt to be used again. |
| 6.8 EXHAUST/NOISE REDUCTION SYSTEMS |
| Maximum noise level is 81dB (A) measured at ten (10) metres, one (1) metre above the track. IFMAR's definition of noise level is final. |
| This noise level will be measured at all times when the track is open. The position of the noise meter may vary depending on the decision of the Race Director. A red light will warn the competitor when his engine is exceeding the noise level. It is the responsibility of all participants to ensure that their cars produce the minimum of noise. Any car found to be exceeding IFMAR noise level will be shown the black flag. Once black flagged for noise infringement, modifications to reduce noise emissions shall be carried out before that competitor is allowed to re-join the racing. |
Exhausts have to be of minimum three-chamber type. No open exhausts or pipes are allowed.
The total exhaust has to be inside the body, with the exception of the tailpipe which may protrude outside the body at a maximum of ten (10) mm/.39 in. |
| The body may be cut out at that point by a maximum of 20 mm/.78 in. more than the tailpipe diameter. Maximum inside diameter tailpipe is 13 mm/.51 in. |
| All cars to be equipped with an air - box designed to reduce the intake noise of the carburettor. |
| Page One |
| As this is a rather large document it has been split into two pages. Page One |
| Further Information |
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