ISRA Rulebook 2008

Complete rulebook (pdf)

Technical dimensions (compiled) (pdf)

Penalties summarised

a) Illegal track call: 2 laps. (Section 4.2 and 5.2)
b) Missing marshalling duties in practice: Loss of the next practice session. (Section 3.1)
c) Missing last marshalling duty in practice: Loss of the best qualifying time. (Section 3.1)
d) Missing marshalling in race: 10 laps. (Section 4.2 and 5.2)
e) Accidental crash on the straight in front of the drivers, caused by a driver's hand or a car in hand, or a touch of another driver’s car by a pit crew member while removing or replacing a car in the pit zone: 10 laps. (Section 4.2 and 5.2) If it happens in another place of the track the penalty in j/ below is added.
f) A car returned to the enclosed park after the closing of technical inspection: 10 laps. (Section 3.3)
g) Unsportsmanlike conduct: For first infraction - warning, for second infraction - 10 laps, for third infraction - disqualification. (Section 1.12, 4.2 and 5.2)
h) Use of illegal parts: Disqualification. (Section 3.3)
i) Driving with an illegal car: 3 laps for every lap made from when the race controller recorded the car as illegal. (Section 4.2 and 5.2)
j) A repaired car that is put on the track elsewhere than the designated pit area: 3 laps. (Section 4.2 and 5.2)
k/ Use of illegal chemical substance at all times: 10 laps (Section 3.3)
l/ Use of tools in lane changes or doing else than changing lane sticker, pushing in body pins and straighten braids: 10 laps (Section 4.2 and 5.2)
m/ There must be only one driver/team per car and one car per driver/team during the race: Disqualification. (Section 4.2 and 5.2)

1. General Principles

This section presents the basic principles for the running of ISRA and for staging an ISRA Worlds event

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1.1 The ISRA delegates meeting
1.2 The Race Jury
1.3 Race direction
1.4 Participation
1.5 Number of entries
1.6 Time frame
1.7 Registration
1.8 Entry fees
1.9 ISRA driver's licenses
1.10 ISRA points
1.11 Trophies
1.12 Unsportsmanlike conduct

ISRA Worlds events are presented in the spirit of promoting slot racing world wide. Thus an approved organiser of an event takes on this duty and is preparing and fulfilling an event as a promoter for their national association as well as ISRA as international organisation, and completely in line with the decisions made by the ISRA Delegates.

Every ISRA World Championships event must be organised and staged under the authority of the association of ISRA world delegates. Those countries wishing to stage the ISRA World Championship must submit a written proposal to the acting ISRA chairman. The sites for the Championships will be announced at least two years in advance. Only those persons who are licensed by ISRA may take part in these events. The licence fee is to be paid together with the entry fees, and a number be issued at registration. A license number is required for taking part in any practice session. The total number of licenses granted worldwide is unrestricted.

1.1 The ISRA delegates meeting

At the ISRA World Championships a preparatory ISRA delegates meeting shall be held in the evening on the open practice day (Sunday). During the meeting shall the following issues be decided or presented:

a/ The election of a Race Jury for the event according to section 1.2 of the rulebook.
b/ Proposals for changes to the ISRA rulebook for the following years event.
c/ Proposals of coming events.
d/ Other questions to be considered by the delegates.

Proposal and suggestions can be submitted in advance to the ISRA Chairman or presented at the ISRA-meeting at b/. Questions raised in b and c/ shall be decided during a Delegates meeting held at the end of the event (Saturday).

At the Delegates meeting the following issues will be decided upon:

a/ Election of officials; ISRA chairman, ISRA secretary or ISRA technical officer.
b/ Election of an election committee consisting of two delegates for the following year.
b/ Evaluation.
c/ Coming events.
d/ Changes to the ISRA rulebook for the following years event.
e/ Other questions.

The election of officials is for three (3) years. The sequence is Chairman (2007), Secretary (2008), Technical officer (2009).  The election committee must present a proposal for a new official the latest 3o days prior to the Delegates meeting. Proposals from individual licensed drivers can be submitted directly to ISRA within the same time frame. A proposed person must know they are submitted and be approached by ISRA to be able to acknowledge if they are willing to take on the duty.
The choice will be from these candidates. To be selected a majority of votes is necessary (50%). If none of the candidates receives 50% of the votes, the two with most votes enter a second voting round. In case of equal number of votes in the second round the Chairman of the meeting has a decisive vote. A person can not vote in an election in which he/she is a candidate.

Voting shall always be conducted by showing of hand.

The organiser of an ISRA World Championship shall always conduct an evaluation among the drivers during the championships. The results of the evaluation will be discussed at the Delegates meeting the last day of the ISRA WC, and before the official closing of the championships.

The ISRA delegates can decide that a question brought up at the official meeting shall be decided through an e-mail vote between the delegates. The chairman always conducts such a procedure.

The minutes from both these meetings will be published on the ISRA website; www.isra-slot.com

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1.2 The Race Jury

At the ISRA World Championships, the Race Jury will consist of the Race Director and two (2) Stewards chosen and two (2) personal Deputies from the ISRA delegates. The jury will handle and solve all issues with regard to rule interpretation, disqualification, lap counter or track failures, etc. A Deputy will step in if a Steward is personally involved in or affected by a dispute. A deputy may also step in if a Steward is unavailable due to illness or else.

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1.3 Race direction

A race direction must consist of a Race Director controlling the event (as a whole), a Race Controller running the races, a Technical Director responsible for the inspections and the pit-area, and a Result Manager running the result services. These four officials cannot be drivers at any stage of the event. If any of them is enrolled as a participant in a class, then, in that class, a non-racing deputy official must be appointed. The persons filling these positions must be presented on the official website 60 days prior to the event.

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1.4 Participation

An "Olympic rule" is used which means that all nations are welcome to participate with entrants.

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1.5 Number of entries

The number of entries is unlimited. However, the host nation may only enrol up to twice the number of the largest delegation from another nation and as long as the total number of entries do not exceed 100. If the total exceeds 100 the host is always guaranteed the same number as the largest international delegation. This limitation is based on each class seen separately making it possible for the host to have more drivers active over the full event and spread over several classes. The host nation may enrol more entrants than stated above if the total number does not reach 100 at the end of registration, however never exceeding the total of 100 in a class.

There is no restriction of the number of teams in the Production team race.

The organiser has to plan for a minimum number of 64 teams in the production team race, and 100 drivers in the sprint races. (See section 1.6 below for time schedule and steps to take if numbers exceeds 64/100)

Due to concerns of the race duration the race direction may, together with the race jury, decide to alter the driving times in section 3.2.2 and 3.3.2.

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1.6 Time frame

The event must follow the official time schedule. See also section 3.1.

* The addition of 8 teams (one full final) is 171 minutes (2h 51min) longer duration of the team race. The addition of 8 more drivers in a sprint race adds 96 minutes (1h 36min) to the duration of the race.
** Tech is closed 20 minutes after final practice session seen group by group.
*** The organiser is responsible for that the track is properly warmed up before the start of a morning heat. This has to be done with cars in race condition and of the same class raced.

If the number of entries exceeds 100 the following take effect in steps until the schedule works out:

a/ Practice duration 3 minutes per lane (saves 2 hours per class)
b/ Allow scheduled practice until 2 am (allows 2 more groups)
c/ Heats allowed to run until the latest 2am (allows either 3-5 more heats or less heats the next day)
d/ Semi-finals 3 minutes long. (saves 24 min per class)
e/ Production finals 8x5 minutes (saves approx 3 hours)
f/ No qualifying in Production (saves approx 2 h 30 min)
g/ Number of practicing rounds cut from 8 to 4 (saves 5 hours per class)

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1.7 Registration

An official 30-day pre-registration date will state the group of entrants to the ISRA WC event. The registration must be done via mail, e-mail or facsimile to the organiser, as well as by pre-paying Euro 100 to an ISRA account as the ISRA license fee and part of the entry fees. The organiser must keep an up to date listing (website or e-mail) of entrants so that enrolled persons can get a confirmation of their registration. When registration is completed a confirmation will appear on the official website as well as be sent by e-mail to the address provided by the entrant. (The pre-payment through ISRA is to be installed from 2009)

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1.8 Entry fees

The maximum entry fee is Euro 35 per class. The cost of the handout parts in the team race must not be higher than the parts’ normal retail prices.

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1.9 ISRA driver's licenses

The ISRA driver’s license fee is Euro 10 per year.

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1.10 ISRA points

The ISRA points are awarded on a falling scale as:

50-45-40-36-32-29-26-24-22-20-18-16-14-12-11-10-9-8-7-6-5-4-3-2 (for the first 24 drivers).
The 25th will receive 1 point, the 26th 0.99, 27th 0.98 and so on.
The top 4 qualifiers in the individual races receive bonus ISRA ranking points on a falling scale (4, 3, 2, 1) to be added to their total from the race.

A driver’s ISRA ranking is based on the total of points the driver has collected over the last three ISRA Worlds events.

An entrant with no prior ISRA ranking will be given a ranking number based on enrolment and the first enrolled is given the lowest number beyond drivers with ranking points.

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1.11 Trophies

Prizes are given to all finalists in the sprint races, and to all drivers in the top 8 teams in the production team race.

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1.12 Unsportsmanlike conduct

Practising on another entrant's turn or driving another drivers' car during racing is considered unsportsmanlike conduct. The use of obscene and course language at any occasion is considered unsportsmanlike conduct. Unsportsmanlike behaviour is subject to a warning by the race direction. A repeated violation will result in a 10-lap penalty. A third violation will result in disqualification from that class. The penalty due to unsportsmanlike behaviour affecting the race results is 10 laps at a first infraction, and disqualification at the next infraction whatever cause (see section 3.2 and 3.3). Purposely driving another person's car or exchanging an enrolled for another renders direct disqualification (section 3.2.2 and 3.3.2). 

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2. Track and speed controllers

This section presents rules concerning the track and speed controllers for the Worlds organisers' to abide.

2.1 Track
2.2 Lap counter
2.3 Speed controllers
2.4 Pre-ISRA WC practice
2.5 Track wiring and power
2.6 ISRA control principles

2.1 Track

Each ISRA race must be run on a professionally built wooden track with 8 lanes, installed in a reasonable, comfortable and accessible place. Safety arrangements, in the form of track sidewalls, must be used to prevent crash damages. A track must be at least 35 metres long (115 feet) and the distance between lanes must be a minimum of 104mm (4.1 inches). The distance between sidewalls and the outside lane must be a minimum of 150mm (6 inches). Slot width must be 3-4mm and slot depth at least 9mm. Lanes must be signed with colours and/or numbers. The track must have a flat surface. This should be measured by a 300 mm long leveller in two ways. First so that the banking angle is minimized (less than 5 degrees) by positioning the leveller in the direction of the radius, and second that joins and else is less than 1 mm from perfectly flat when measured with the 300 mm leveller held in the driving direction.

Every worlds track shall be re-braided within 12 months prior to the event.

2.2 Lap counter

An electronic lap counter system accurate to within 1/1000 of a second must be used. The track has to be divided into 100 equal sections that are easy readable. The lap counter must be in a position where the chance of cars passing outside of the slot is minimal. In case of need the Race jury may decide to change the lap counter position. The lap counter position must be clearly visible to the race controller.

2.3 Speed controllers

Speed controllers are unrestricted, but they must not raise or store voltage. The controllers’ connection to the track must be done with 4mm banana plugs or alligator clips. National sockets are optional.

2.4 Pre-ISRA WC practice

The racetrack shall be closed for practice and competition four weeks prior to the Worlds event. Only the host club racers or raceway customers are allowed to practice.

2.5 Track wiring and power

The track wiring and the power supply must be capable of feeding continuous power of 150W per lane. The cross section of track braid or rail must be 2,5mm2 (AWG13) or more. The distance between supply cable points must not exceed 12m (40ft) (i.e. on a 45 meter track there must be at least 4 supply points on each lane). The cross section of supply cables must be 6mm2 (AWG10) or more. All track braid joints must be secured with additional clamping (braid-braid butt contact is not sufficient).

When power supplies are used, the following limits shall be obliged: The track power supply must have a regulated output to keep the voltage equal during all segments of a race (practice, qualifying, heats and semi-finals of a class). If the track has a power supply for each lane, the devices must be identical. The capacity of the power supplies must be at least 125A. The track voltage must always be 12.5 - 13.0V DC (unloaded).

When batteries are used, the following limits shall be obliged: At least two sets of batteries with a capacity of at least 500 Ah must be available. A charger of a minimum of 100A must be available. The batteries must not be charged while in use for racing. Track voltage must always be 12.0 - 13.5V DC (unloaded).

Track voltage must be equal during all segments of a race (practice, qualifying, heats and semi-finals of a class) An indicator showing the voltage, must be accessible to all racers during the event.

2.6 ISRA control principles

60 days prior to a ISRA world championship the ISRA technical officer has to check with the organisers of the event that all technical specifications regarding track, wiring, power supplies and lap counter system is in line with what is specified in the ISRA rulebook.
At the start of the Worlds event, the ISRA technical officer together with the Race Jury and the Race controller will inspect all above mentioned aspects of the track. In case of that the inspection finds problems needed to be attended to, the organisers will have to do it immediately.
This group will also check the fulfilments of seals and stamps to prevent tampering of the hand-out parts.

This section rules the organisation and running of an ISRA Worlds event.

3.1 Prior to race procedures
3.1.1 Practice
3.1.2 Track conditioning
3.1.3 Enclosed park and technical inspection

3.2 Production race procedure (1/24 production)
3.2.1 Team/Driver Seeding
3.2.2 Racing
3.2.3 Classifications

3.3 Sprint race procedure
3.3.1 Stage 1: Qualifying
3.3.2 Stage 2 - 4: Racing
3.3.3 Classifications

3.1 Prior to race procedures

An ISRA Worlds event consists of four classes run in the sequence; Production 1/24 team race, 1/32 Eurosport sprint race, 1/32 Formula 1 sprint race, and 1/24 Eurosport sprint race. The racing starts in the first Saturday of the race week and each class is run completely from start to end including practice before the next class starts.

In line with section 1.5, Number of entries, a schedule is prepared by the organiser. The basic schedule for the 100 entries' limit is presented in section 1.6. At close of registration, when the actual number of registered drivers is known an updated schedule is presented. A schedule must maintain as much practice time as possible.

3.1.1 Practice

A "practice session" represents the minimum amount of practice (minimum 3 minutes on each lane in each class) that can be taken by one entrant at one time on a single lane. At the end of each practice session, that entrant must marshal the following practice session. Missed marshalling duties will result in the loss of a practice session per infraction. Missing the last marshalling duty will result in missing the best qualifying time.

Before each class, the organiser must provide regulated practice. Prior to the Production 1/24 team race a minimum of 2 rounds of 8 lanes of preferably 4 minutes each, and a minimum of 3 minutes each. Prior to each sprint race regulated practice has to be 1 round of 8 lanes of preferably 4 minutes each, and a minimum of 3 minutes. These practice sessions are scheduled, based on the ISRA Drivers' ranking. The length of each practice session will be the maximum duration possible as based on the number of entries. Each class will practice separately from the others, no exceptions. Practice is regulated, so that every entrant will have the same amount of practice time.

Practising on another entrant's turn or driving another driver’s car during racing is considered unsportsmanlike conduct. In the case of practising it also renders in the loss of the entrant’s next practice session. If it happens in the last practice round it will result in the entrant missing the best qualifying time in the sprint races and the loss of one (1) lap in the qualifying in the production team race.

If there is a possibility to access the race venue already on the Friday prior to the event this Friday may be used for open practice scheduled as 4 hours per class starting at 8.00 am and finishing at midnight. The practice has to be regulated by an efficient system, preferably a ticket system. If it is possible to access the venue 24 hours a day during the first weekend, the track should be open for practice even at night. Between Friday and Saturday it may be open to any class, but between Saturday and Sunday only for Production 24.

3.1.2 Track conditioning

The track must be cleaned and spray glued by race direction before the start of open practice. Entrants or drivers cannot alter the track surface condition in any way, only the track braid/strip may be cleaned. Only the race direction may modify the track condition, upon the authorisation of the Race Jury. Drivers may clean only the braid/strip on their own lane before qualifying or the beginning of a stage. Car braid cleaning/conditioning liquids can never be used on the track at any time but by the Track maintenance manager on instructions from the Race direction.

ISRA suggests the organiser to a/ use a glue mixture of two (1 oz) bottles heavy glue into three litres of solvent, and to b/ only spray glue in the turns and a maximum of one metre onto a straight.

3.1.3 Enclosed park and technical inspection

The pit area (parc fermé) must be enclosed from everyone except the officials responsible for its function. The enclosed park must be a restricted area with the provision of safe storage for the cars in order to avoid any possible damage to them. Drivers and the public must not at any time have access to the area. The organisers are responsible for the security of the area. Cars must remain in the Enclosed Park after the technical inspection, during the qualifying session and during every stage of the racing.

For qualifying, all cars must be brought to the technical inspection impound during the announced open period of time for each class. A technical inspection of the cars based on all eligible rules will begin at the start of that period. This period ends 20 minutes past each practice group's last practice session. All legal cars will be marked by the technical inspectors (engraving on chassis and stamp on body) and be ready to qualify. All non-legal cars will be returned to the entrant. These entrants will be given to the end of the announced open period to make their cars legal. Cars deemed illegal by the end of that period will be technically inspected during race time and if passed the entrant becomes a driver.

The service breaks between the heats and the semi-finals, and between the semi-finals and the final, have the duration of 20 minutes. The technical inspection is open during the service break. All cars have to be on the technical inspection table by the latest at the end of the 20 minute period. All legal cars will be deemed ready to continue racing. All non-legal cars will be returned to the drivers if time is still available. These drivers will be given to the end of that service break to make their cars legal. The track has its power turned on during the breaks. Only the race car may be used.

A driver who hand her/his car in too late will receive a 10-lap penalty enforced at their following stage of racing.

A car that has been found faulty in the technical inspection may be repaired during the warm up. The car must be re-checked after the repair during the warm-up or after the start, but before making any race laps. A technical inspector must be available at the starting line for the car(s) to be checked as quickly as possible. While the repairing of a faulty car must not delay the start of the race, the inspection may be fulfilled during the start process.

Ground clearance is measured in technical inspection and at the line up for start of the first segment of a stage on cars that have had their rear wheels changed during warm up; The clearance then has to be 0,8 mm at start. Cars may be randomly checked at any time in a segment. Any part of the car that deviates from the dimensional rule limits must be repaired during actual race time. Those dimensions are; (a) wheel width, (b) overall car width, and (c) rear car height. The use of illegal parts at any point will result in disqualification regardless of if the car has passed an earlier inspection during the race. In the production team race all cars will be re-inspected after their heat. The following points are checked: a/ blueprint on motor (the motor may be opened); b/ the stamp on the body; c/ the blueprint and rubber of the tires; d/ the engraving of and intentional structural changes made to the chassis. Any tampering found results in the disqualification of the drivers of the team regardless of if the car has passed an earlier inspection during the race.

Cars that have had their body, tires or gear changed during racing shall always have its dimensions (widths and heights) checked in the next lane change following the repairs. The technical check shall not inflict on the drivers lane change time. If the width or height is illegal it has to be repaired immediately, but during racing time.

The tools that are used during the technical inspections shall be available to drivers during other times than inspection periods. All car dimensions are measured on a recessed tech block.

The use of Metylsalycylat (Oil of Winter Green) or any comparable chemical to improve the tire compound renders the driver a penalty of 10 laps in the ongoing stage, or, if found in a technical inspection, the following stage.

Unsportsmanlike behaviour is subject to a first warning by the Race direction. A repeated violation or a first violation that affects the race result will result in a 10-lap penalty. The next violation will result in disqualification from that class.

The use of obscene and course language at any occasion is considered unsportsmanlike conduct.

3.2.1 Team/Driver Seeding

The production race is a 2-person team race, with each team member driving equal amounts. The race shall run as two stages; qualifying and groups.

The ranking of the teams is based on the ISRA drivers' ranking. The best ranking of the two drivers is used. The qualifying starts with the team with highest ranking number, then the next highest and so on.

3.2.2 Racing

Qualifying is run over 1 minute where the team with the longest distance covered wins. Each member of a team must drive 30 seconds. A 15 seconds stop for driver change is provided.

Each group will consist of 8 segments. Each segment will be 7,5 minutes. If possible, the number of teams in each group should be equal. If not, the number of teams can be one less in the first few groups. Drivers, at the end of their group, must be the corner marshals in the next group.

A penalty of 5 laps will be given for missing marshalling. The number of marshals must be the same during the whole race. In the first group that is run, marshalling will be done by the drivers of group A. Drivers from the first group will be the marshals for the next group, and so on.

There must be only one team per car and one car per team during the race. Violating this rule is considered unsportsmanlike and will result in disqualification without prior warning or 10 lap penalty.

Only during the actual race time or qualifying, are drivers and/or their pit crew permitted to work on their cars. During lane changes, drivers and/or their pit crews may straighten the braids on the car and push in body pins. A specific part of the track will be designated as the pit zone by race direction before the race starts. A driver who has his/her car put back on the track anywhere else than in that zone will receive a penalty of 3 laps. The driver is allowed to replace her/his car in front of her/him if the car was picked up from there or else it has to be placed in the pit zone. Any car damage that would make the car illegal, such as the loss of a major part of the body or a car dragging the track surface, must be immediately repaired and only during actual race time. The driver may continue a maximum of 3 laps before stopping to repair the car. Each extra lap made with an illegal car will result in a 3-lap penalty.

Lane rotation is fixed as follows: 1 - 3 - 5 - 7 - 8 - 6 - 4 - 2 (Red -Green -Blue -Purple -Black -Yellow -Orange -White). Lane change is the driver's responsibility. No compensation can be given for incorrect changing of lanes.

Race direction can temporarily stop the race only if a marshal calls for a stop due to a car; (a) in a non-marshallable position (i.e.: in the middle of the straight in front of the drivers) (b) under a bridge or on the floor in an area indirectly accessible (e.g. under the track) (c) becoming a rider on another lane. The race direction must before the race begins point out which areas of the track that are considered under a and b. Drivers can call for a stop by no other word than "Track!" and only in situations and areas pointed out by the race direction before the race. For every illegal call, made by a driver will, there will be a 2-lap penalty imposed.

3.2.3 Classifications

After each group, a driver's finishing position will be a result of the sum of the laps completed, the last lap sections and the result from qualifying. At an eventual tie the number of race laps shall decide. The number of laps made can only be the result of the lap counter. No lap correction is made for missed counting due to the car's braids, nor lane jumping (rider) unless caused by a turn marshal placing the car on the wrong lane. Race direction must check the lap counting system if there is a sustained problem. If a problem with the lap counter occurs, then upon its correction, the race direction must re-run the current segment. Drivers will have their cars back only to change wheels and braids.

Sprint races are conducted in the following classes: Formula 1 1/32; Eurosport 1/32; and Eurosport 1/24. All sprint races consist of four stages; qualifying, heats, semi-finals and a final.

Unsportsmanlike behaviour is subject to a first warning by the Race direction. A repeated violation or a first violation that affects the race result will result in a 10-lap penalty. The next violation will result in disqualification from that class.

The use of obscene and course language at any occasion is considered unsportsmanlike conduct.

3.3.1 Stage 1: Qualifying

Qualifying is the first stage of a race. It will be for one minute per driver, on a qualifying lane as chosen by the race direction. Qualifying order will be based on the ISRA Drivers ranking. In all sprint classes, the highest ranked drivers will qualify last.  Overall ranking will be determined by the best single lap time as attained by each driver. For two drivers having matching lap times, their second best time will break the tie. Every driver, who misses his or her qualifying time, will be classed in the last position.

Missed marshalling duties in the final round of practising results in a loss of the best qualifying time.

The best 4 qualified drivers will be placed directly into stage 3, i.e. the top 4 semi-final places (all in semi A). The remaining drivers will be placed into stage 2, i.e. the heats sorted by their qualifying result.

A driver may check and straighten her/his braids while on deck, however the car has to be placed on the track by an official.

3.3.2 Stage 2 - 4: Racing

Stage 2, heats driven 8x3 minutes: The racers qualified at positions 5-12 will race in the last heat, drivers qualified at positions 13-20 in the second last heat, and so on. If possible, the number of drivers in each heat shall be equal. If not, the number of drivers can be one less in the first few groups.

Stage 3, semi-finals driven 8x4 minutes: The best 20 drivers (by lap total) from stage 2 will be placed into 3 semi-finals (A, B and C). The top 4 will be placed in semi A. The next eight will be placed in semi B and the remaining 8 in semi C, which is run first followed by B and A.

Stage 4, final driven 8x5 minutes: The best 8 drivers (by lap total) from stage 3 will move in to the final.

Starting lanes will be chosen by race direction in all stages except stage 4, where the starting lanes will be selected by the racers in an order determined by the results from stage 3. Best result gets first choice.

The stages will have the following length: Stage 2, heats, are 3 minutes per lane, stage 3, semi-finals, are 4 minutes per lane, and stage 4, the final, is 5 minutes per lane. Depending on the number of drivers, the length of the stages may change to fit reasonable race duration, as determined by race direction. Leading up to the first segment a 1 minute warm-up shall be run on the starting lane.

Drivers, at the end of their group, must be the corner marshals for the next group. A penalty of 10 laps will be given for missed marshalling duties. The number of marshals must be the same during each stage of the race. In the first group of a stage the drivers of the last group will be marshalling. Drivers from the first group will be the marshals for the next group, and so on.

There must be only one driver per car and one car per driver during the race. Violating this rule is considered unsportsmanlike and will result in disqualification without prior warning or 10 lap penalty.

Any car damage that would make the car illegal, such as the loss of a major part of the body or a car dragging the track surface, must be immediately repaired and only during actual race time. Each extra lap made with deemed illegal by the race controller will result in a 3-lap penalty. An exception in Eurosport 24 and 32 is the loss of a front wheel(s) during the course of racing, and which must be repaired/replaced before the start of a new stage of the race. In Formula 1/32 the loss of a front wheel has to be repaired immediately.

Only during the actual race time, qualifying or in the 1 minute warm-up leading to the first segment are drivers and/or their pit crew permitted to work on their cars. A specific part of the track will be designated as the pit zone by race direction before the race starts. A driver who has his/her car put back on the track anywhere else than in that zone will receive a penalty of 3 laps. A driver is allowed to replace her/his car in front of her/him if the car was picked up from there or else it has to be placed in the pit zone. If a driver or a member of her/his pit crew by accident touches another driver’s car the driver will receive a 10-lap penalty.

During lane changes, drivers and/or their pit crews may only change lane sticker, straighten the braids on the car and push in body pins. Violation renders a 10-lap penalty.

Lane rotation is fixed as follows: 1 - 3 - 5 - 7 - 8 - 6 - 4 - 2 (Red -Green -Blue -Purple -Black -Yellow -Orange -White). Lane change is the driver's responsibility. No compensation is awarded in the event of incorrect changing of lanes.

Race direction can temporarily stop the race only if a marshal calls for a stop due to a car; (a) in a non-marshallable position (i.e.: in the middle of the straight in front of the drivers) (b) under a bridge or on the floor in an area indirectly accessible (e.g. under the track) (c) becoming a rider on another lane. Before the race begins the race direction must point out which areas of the track that constitutes a and b. Drivers can call for a stop by no other word than "Track!" and only in situations and areas pointed out by the race direction before the race. For every illegal call, made by a driver, there will be a 2 lap penalty assessed.

3.3.3 Classifications

At each stage, a driver's finishing position will be a result of the sum of the laps completed and the last lap sections. At an eventual tie the last stage shall decide. Direct advancement from qualification to stage 3 is regarded as better than stage 2 results. The number of laps made can only be the result of the lap counter. No lap correction is made for missed counting due to the car's braids, nor lane jumping (rider) unless caused by a turn marshal placing the car on the wrong lane. Race direction must check the lap counting system if there is a sustained problem. If a problem occurs with the lap counter, then upon its correction, the race direction must re-run the current segment. Drivers will have their cars back to change wheels and braids only.

4. Technical Specifications

This section regards all technical specifications to be scrutinised during technical inspection. They are presented class by class.

4.1 1/24 Production

4.1.1 Dimensions
4.1.2 Chassis
4.1.3 Body
4.1.4 Motor
4.1.5 Front wheels and axle
4.1.6 Rear tires, rear axle and bushings

4.2 1/32 Formula 1

4.2.1 Dimensions
4.2.2 Chassis
4.2.3 Body
4.2.4 Motor
4.2.5 Front wheels
4.2.6 Rear tires

4.2 1/32 Eurosport

4.3.1 Dimensions
4.3.2 Chassis
4.3.3 Body
4.3.4 Motor
4.3.5 Front wheels
4.3.6 Rear tires

4.4 1/24 Eurosport

4.4.1 Dimensions
4.4.2 Chassis
4.4.3 Body
4.4.4 Motor
4.4.5 Front wheels
4.4.6 Rear tires

4.1.1 Dimensions in (mm)

A recessed tech block (guide and rear wheels) is used when measuring the car dimensions except ground clearance.

Car

Wheels and axles

4.1.2 Chassis

The following chassis are permitted in their by ISRA approved shape and structure:

CHAMPION (USA)
420 Turbo Flex Chassis

PARMA (USA)
595 Flexi 2 Chassis

MOSSETTI RACING (Canada)
300 Titan
300SS Titan Stainless

Proslot (USA)
PS5000 SpeedFX

The following modifications are allowed:
a/ Lead may be taped or glued to the top of the chassis.
b/ Tape may be added to the top of the chassis.
c/ The front axle may be soldered to the chassis.
d/ Front wheel retainers may be soldered to the front axle.
e/ Pintubes may be added in the original body mounting holes and be either floating or fixed to the chassis.
f/ Rear oilites may be soldered to the chassis.
g/ The motor may be soldered to the top of the chassis using a tube or a wire placed on the rear axle side of the motor, however it must be mounted below the rear axle.

4.1.3 Body

The body must be mounted as intended and cover the chassis, including the rear tires and the guide flag, in at least one unforced position. It can be fixed to the chassis with pins or sellotape. Body decoration is unrestricted, but must be made in at least two different colours. The body must be completely opaque. Windows must be left clear and all four wheels must be completely visible when viewed from the side. Pin striping and/or bodyline detailing is mandatory. The best ranked driver's licence number must be displayed in at least 3 different positions. All cars must have the hand-out interior in the original cockpit position and block any view of the chassis seen from above.

Body cutting must maintain every detail of the real car (i.e. lights, wheel position, etc.) and have the form as produced by the manufacturer.

4.1.4 Motor

The motor is a sealed handout Group 12 motor and is to be used as is. However, the motor shaft may be shortened and the can may be trimmed to provide axle clearance only.

4.1.5 Front wheels and axle

The front axle must be straight and pass through the original hole as intended by the manufacturer. The front wheels must be mounted to the axel, turn on their centre at a 90 degree angle to the track surface, and have a black rubber/ plastic perimeter.

4.1.6 Rear tires, rear axle and bushings

Handout tires are used. The rear axle must run in oilites.

4.2.1 Dimensions

A recessed tech block (guide and rear wheels) is used