Post by Andrew Rowland on Jun 5, 2014 15:46:03 GMT -5
GRAND PRIX of the DFV
Rules (unashameably lifted from Chris Wright / Mark Huber’s GPd’ series with their kind permission).
The GPd2014 is an invitational proxy series for 1970-77 3 litre Grand Prix cars before Ground Effect got fully underway. The rules for the event are intended to promote the building of cars that are beautiful, accurate to scale, represent the cars as they raced and are fast. The intention is to race the cars worldwide if a secure and cheap means can be devised to avoid loss of the cars. For the first year all races will take place in the UK.
A schedule of events and track descriptions will be posted separately. Information on the registration fee and deadline for same have been sent to the invitees. All cars are to be at the UK organizer’s location on or before 10.01.2015.
Concours judging is part of the series. Points earned in Concours will be added to the entrant’s overall score and be counted the same as one race.
GRAND PRIX CARS
Any car based on a prototype that competed in an International Grand Prix Championship race from 1970 to 1977 is eligible. Cars should represent closely the specific race they took part in. Although it is recognised that during the early part of this period some cars sometimes raced without wings (particularly at tracks like Monza) if it becomes clear that entrants are particularly choosing to make cars without wings we will ban non wing cars or deduct points for such cars. We are looking for a ‘representative’ group of cars.
1. SCALE, DIMENSIONS & GENERAL APPEARANCE
All cars are to be accurate 1/32 scale representations of the full size car. As most racers rely on manufactured bodies, which are not always perfect, there is no specific requirement for exact scale length and width for body shells. Cars are expected to be reasonably to scale.
Wheelbase and Track measurements must be 1/32 scale within + or – 1mm. “Wheelbase” is the distance between the centre lines of the front and rear wheels. “Track” is the distance between the centre lines of the left and right hand wheels at the front and at the rear of the car.
Cars will be measured.
It is the entrant’s responsibility to prove the accuracy of any car. The entrant is encouraged to provide a / some photograph(s) of the actual car upon which the entry car is modelled. If there is any doubt the scrutineer may disqualify the car or assign a handicap. The scrutineer’s decision is final.
The general appearance of the cars will be taken into account at the Concours judging. Should an entrant present a car that looks out of ‘character’, there will be an adjustment in the Concours ranking as determined by the judge.
2. BODIES
All body shells must be of hard plastic, glass fibre, resin, wood, metal or similar material. Vacuum formed bodies are not permitted.
All cars must carry any racing numbers which are period correct. Each car must carry a unique racing number. Racing numbers will be assigned by the organizer and will be available on a ‘first requested, first granted’ basis.
The entrant’s name should be clearly marked on the bottom of the chassis.
All cars must have clear (or tinted) windscreens fitted where they appeared on the prototype. Vacuum formed windscreens are permitted.
All cars must carry detailing including but not limited to mirrors, roll bar, suspension (which includes shock absorbers when visible and A arms or rocker arms as appropriate) and external engine components and differential consistent with the car being represented.
All cars must have a suitably decorated and period correct, three dimensional, representation of a driver consisting of at least a head, shoulders, arms, hands and the upper part of a steering wheel. Vacuum formed interiors and drivers are not permitted.
The chassis, motor and all running gear should not be visible from above or through the cockpit opening and engine bay unless that which can be seen represents parts of the real car, e.g. suspension components and exhaust systems.
The slot guide must not visible from above the car when in the straight ahead position.
With cars with wings it is inevitable that some damage might result from racing incidents. All entrants are aware of this and enter with the understanding that damage might occur. Neither the driver or the organisers take any responsibility for such damage however caused.
Entrants are urged to provide either very strongly built models or lightly bonded parts that are liable to fly off in the event of an incident.
It is agreed that as all races are to be undertaken by skilled scratchbuilders and wherever practicable the race organiser will undertake to carry out simple repairs to the cars after the completion of a race.
Any car too damaged for simple repairs will be returned to the entrant, who can, if they wish repair the damage and undertake to get it to the next race (missing one or more races if necessary). All postage costs will be met by the entrant.
3. WHEELS & TYRES
All wheels must be representative of real wheels or have suitable inserts fitted.
Wheel and tyre widths and diameters are fundamental to the look of this period of cars and so the following dimensions will be measured carefully. The following list attempts to be comprehensive but it is clear that just varying the pressure of these large tyres would change the diameter and width relationships and that tyres and wheels often changed from race to race. A common sense approach is required from builders to be as accurate as possible and defend and explain their choice to the organisers who however reserve the right to deduct points under rule 8. paragraph 2.
Front tyres may NOT be covered in any additive to make them smooth as this detracts from the overall scale appearance of the cars.
Due to the current difficulty in obtaining tyres with ‘tread’ for the early years of 1970 to 1972 when they were used, cars do NOT need to represent this aspect of the original. I.e. a 1970-1972 car can run with slicks.
Tyre and wheel widths and diameters varied from car to car and race to race but as a general guide:
1970-1972:
Rear:
1. Firestone 15inch dia. hubs
2. Goodyear 13inch dia. hubs
Front:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
1973-1974
Rear:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
Front:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
1975-1977
Goodyear only
Rear:
13inch dia. hubs
Front:
13inch dia. hubs
With Tyres on and at 1/32 this means something like:
Dimensions in mm HUB TYRE
Front Rear Front Rear
Year Manu. Dia. Width Dia. Width Dia. Width o/a Widthtread Dia. Width o/a Widthtread
1970-72 Firestone 11.5 8 13.5 12 17 8.5 7 21 12 10
1970-72 Goodyear 11.5 8 11.5 12 17 8.5 7 21 12 10
1973-74 Firestone 11.5 8 11.5 13.5 15 8 7 19 14.5 12
1973-74 Goodyear 11.5 8 11.5 13.5 15 8 7 19 14.5 12
1975-77 Goodyear 11.5 8 11.5 13.5 15 8 7 19 14.5 12
Note: All dimensions to nearest 0.5mm.
Tyres are limited to rubber or urethane compounds. Silicone tires and sponge/foam rubber tyres are not permitted.
All tyres must be dry, and free from additives whenever the car is placed on the track.
4. MOTORS, GEARING & CHASSIS
Motor orientation is in-line only. Only slim line motors are eligible. The motor must be commercially available, in other words no Pro-built or re-wound motors. Motors must not be opened or otherwise tampered with.
Races will be run at 12 volts.
Gear design and ratios are free for entrants to choose.
Plastic, resin (whether cast, constructed or 3D printed) and carbon fibre chassis and / or motor supports, whether purchased or scratch built, are not permitted.
Any chassis design which allows the wheelbase or effective track dimension to vary will be measured at both extremes of movement and must remain within the + or - 1mm scale tolerance and not exceed the maximum track limits.
Wheelbase, track and overall width will be measured with the steering in the straight-ahead position for any cars fitted with steering.
Chassis to be limited to 18mm width whatever design of car is chosen. This rule is designed to stop entrants ‘honing in’ on a particular set of wide bodied cars in due course if wider chassis are seen to add advantage.
A minimum ground clearance of 1.5mm will apply under the motor and the entire length of the chassis and body. Drive gears may NOT be below the minimum ground clearance.
One slot guide only is permitted. (The final design of this will depend on the tracks on which we end up racing.)
Traction magnets are not permitted.
READY-TO-RUN (RTR) CARS ARE NOT PERMITTED.
The final decision on eligibility will rest with the event organizers.
5. CONCOURS D'ELEGANCE
The organizers will determine the method of judging. Each entrant may supply a reference photograph of the car being represented.
The amount of personal ingenuity that goes into the model will certainly result in higher marks.
6. POINTS SCORING
For each race from places 1 through 24. This also includes the final Concours standing which therefore counts as one race.
50-44-40-36-33-30-28-26-24-22-20-18-16-14-12-10-8-7-6-5-4-3-2-1
(Clearly at the beginning there wont be 24 cars so we will judge from 50 downwards for however many cars there are.)
There are no points awarded for fastest lap in any of the events.
7. PENALTIES
Late arrivals: The series will begin on the scheduled date as published. If a car is late, rounds will not be rescheduled and the car will not receive points for the round or rounds it misses. This also applies to Concours scoring at each venue.
In the event of a late arrival, the car will be inspected on arrival and then sent on to the next practicable venue for inclusion in the remainder of the series.
Any car outside reasonable rule boundaries will be sent home. The technical inspector has sole discretion in determining what constitutes reasonable rule boundaries.
All costs incurred for returning a car will be paid by the entrant.
8. SCHEDULE OF PENALTIES
Remedying of non-compliant matters: 10 point deduction per infraction (one time)
Cars that are raced with ‘out of compliant’ conditions not deemed serious enough to be sent back to the entrant: 10 point deduction per race.
Tyre or gear change due to breakdown/wear: 10 point deduction. (Extra tyres and gears can be sent with the car if deemed advantageous but the entrant may not choose when and if these get added).
Rules (unashameably lifted from Chris Wright / Mark Huber’s GPd’ series with their kind permission).
The GPd2014 is an invitational proxy series for 1970-77 3 litre Grand Prix cars before Ground Effect got fully underway. The rules for the event are intended to promote the building of cars that are beautiful, accurate to scale, represent the cars as they raced and are fast. The intention is to race the cars worldwide if a secure and cheap means can be devised to avoid loss of the cars. For the first year all races will take place in the UK.
A schedule of events and track descriptions will be posted separately. Information on the registration fee and deadline for same have been sent to the invitees. All cars are to be at the UK organizer’s location on or before 10.01.2015.
Concours judging is part of the series. Points earned in Concours will be added to the entrant’s overall score and be counted the same as one race.
GRAND PRIX CARS
Any car based on a prototype that competed in an International Grand Prix Championship race from 1970 to 1977 is eligible. Cars should represent closely the specific race they took part in. Although it is recognised that during the early part of this period some cars sometimes raced without wings (particularly at tracks like Monza) if it becomes clear that entrants are particularly choosing to make cars without wings we will ban non wing cars or deduct points for such cars. We are looking for a ‘representative’ group of cars.
1. SCALE, DIMENSIONS & GENERAL APPEARANCE
All cars are to be accurate 1/32 scale representations of the full size car. As most racers rely on manufactured bodies, which are not always perfect, there is no specific requirement for exact scale length and width for body shells. Cars are expected to be reasonably to scale.
Wheelbase and Track measurements must be 1/32 scale within + or – 1mm. “Wheelbase” is the distance between the centre lines of the front and rear wheels. “Track” is the distance between the centre lines of the left and right hand wheels at the front and at the rear of the car.
Cars will be measured.
It is the entrant’s responsibility to prove the accuracy of any car. The entrant is encouraged to provide a / some photograph(s) of the actual car upon which the entry car is modelled. If there is any doubt the scrutineer may disqualify the car or assign a handicap. The scrutineer’s decision is final.
The general appearance of the cars will be taken into account at the Concours judging. Should an entrant present a car that looks out of ‘character’, there will be an adjustment in the Concours ranking as determined by the judge.
2. BODIES
All body shells must be of hard plastic, glass fibre, resin, wood, metal or similar material. Vacuum formed bodies are not permitted.
All cars must carry any racing numbers which are period correct. Each car must carry a unique racing number. Racing numbers will be assigned by the organizer and will be available on a ‘first requested, first granted’ basis.
The entrant’s name should be clearly marked on the bottom of the chassis.
All cars must have clear (or tinted) windscreens fitted where they appeared on the prototype. Vacuum formed windscreens are permitted.
All cars must carry detailing including but not limited to mirrors, roll bar, suspension (which includes shock absorbers when visible and A arms or rocker arms as appropriate) and external engine components and differential consistent with the car being represented.
All cars must have a suitably decorated and period correct, three dimensional, representation of a driver consisting of at least a head, shoulders, arms, hands and the upper part of a steering wheel. Vacuum formed interiors and drivers are not permitted.
The chassis, motor and all running gear should not be visible from above or through the cockpit opening and engine bay unless that which can be seen represents parts of the real car, e.g. suspension components and exhaust systems.
The slot guide must not visible from above the car when in the straight ahead position.
With cars with wings it is inevitable that some damage might result from racing incidents. All entrants are aware of this and enter with the understanding that damage might occur. Neither the driver or the organisers take any responsibility for such damage however caused.
Entrants are urged to provide either very strongly built models or lightly bonded parts that are liable to fly off in the event of an incident.
It is agreed that as all races are to be undertaken by skilled scratchbuilders and wherever practicable the race organiser will undertake to carry out simple repairs to the cars after the completion of a race.
Any car too damaged for simple repairs will be returned to the entrant, who can, if they wish repair the damage and undertake to get it to the next race (missing one or more races if necessary). All postage costs will be met by the entrant.
3. WHEELS & TYRES
All wheels must be representative of real wheels or have suitable inserts fitted.
Wheel and tyre widths and diameters are fundamental to the look of this period of cars and so the following dimensions will be measured carefully. The following list attempts to be comprehensive but it is clear that just varying the pressure of these large tyres would change the diameter and width relationships and that tyres and wheels often changed from race to race. A common sense approach is required from builders to be as accurate as possible and defend and explain their choice to the organisers who however reserve the right to deduct points under rule 8. paragraph 2.
Front tyres may NOT be covered in any additive to make them smooth as this detracts from the overall scale appearance of the cars.
Due to the current difficulty in obtaining tyres with ‘tread’ for the early years of 1970 to 1972 when they were used, cars do NOT need to represent this aspect of the original. I.e. a 1970-1972 car can run with slicks.
Tyre and wheel widths and diameters varied from car to car and race to race but as a general guide:
1970-1972:
Rear:
1. Firestone 15inch dia. hubs
2. Goodyear 13inch dia. hubs
Front:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
1973-1974
Rear:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
Front:
1. Firestone 13inch dia. hubs
2. Goodyear 13inch dia. hubs
1975-1977
Goodyear only
Rear:
13inch dia. hubs
Front:
13inch dia. hubs
With Tyres on and at 1/32 this means something like:
Dimensions in mm HUB TYRE
Front Rear Front Rear
Year Manu. Dia. Width Dia. Width Dia. Width o/a Widthtread Dia. Width o/a Widthtread
1970-72 Firestone 11.5 8 13.5 12 17 8.5 7 21 12 10
1970-72 Goodyear 11.5 8 11.5 12 17 8.5 7 21 12 10
1973-74 Firestone 11.5 8 11.5 13.5 15 8 7 19 14.5 12
1973-74 Goodyear 11.5 8 11.5 13.5 15 8 7 19 14.5 12
1975-77 Goodyear 11.5 8 11.5 13.5 15 8 7 19 14.5 12
Note: All dimensions to nearest 0.5mm.
Tyres are limited to rubber or urethane compounds. Silicone tires and sponge/foam rubber tyres are not permitted.
All tyres must be dry, and free from additives whenever the car is placed on the track.
4. MOTORS, GEARING & CHASSIS
Motor orientation is in-line only. Only slim line motors are eligible. The motor must be commercially available, in other words no Pro-built or re-wound motors. Motors must not be opened or otherwise tampered with.
Races will be run at 12 volts.
Gear design and ratios are free for entrants to choose.
Plastic, resin (whether cast, constructed or 3D printed) and carbon fibre chassis and / or motor supports, whether purchased or scratch built, are not permitted.
Any chassis design which allows the wheelbase or effective track dimension to vary will be measured at both extremes of movement and must remain within the + or - 1mm scale tolerance and not exceed the maximum track limits.
Wheelbase, track and overall width will be measured with the steering in the straight-ahead position for any cars fitted with steering.
Chassis to be limited to 18mm width whatever design of car is chosen. This rule is designed to stop entrants ‘honing in’ on a particular set of wide bodied cars in due course if wider chassis are seen to add advantage.
A minimum ground clearance of 1.5mm will apply under the motor and the entire length of the chassis and body. Drive gears may NOT be below the minimum ground clearance.
One slot guide only is permitted. (The final design of this will depend on the tracks on which we end up racing.)
Traction magnets are not permitted.
READY-TO-RUN (RTR) CARS ARE NOT PERMITTED.
The final decision on eligibility will rest with the event organizers.
5. CONCOURS D'ELEGANCE
The organizers will determine the method of judging. Each entrant may supply a reference photograph of the car being represented.
The amount of personal ingenuity that goes into the model will certainly result in higher marks.
6. POINTS SCORING
For each race from places 1 through 24. This also includes the final Concours standing which therefore counts as one race.
50-44-40-36-33-30-28-26-24-22-20-18-16-14-12-10-8-7-6-5-4-3-2-1
(Clearly at the beginning there wont be 24 cars so we will judge from 50 downwards for however many cars there are.)
There are no points awarded for fastest lap in any of the events.
7. PENALTIES
Late arrivals: The series will begin on the scheduled date as published. If a car is late, rounds will not be rescheduled and the car will not receive points for the round or rounds it misses. This also applies to Concours scoring at each venue.
In the event of a late arrival, the car will be inspected on arrival and then sent on to the next practicable venue for inclusion in the remainder of the series.
Any car outside reasonable rule boundaries will be sent home. The technical inspector has sole discretion in determining what constitutes reasonable rule boundaries.
All costs incurred for returning a car will be paid by the entrant.
8. SCHEDULE OF PENALTIES
Remedying of non-compliant matters: 10 point deduction per infraction (one time)
Cars that are raced with ‘out of compliant’ conditions not deemed serious enough to be sent back to the entrant: 10 point deduction per race.
Tyre or gear change due to breakdown/wear: 10 point deduction. (Extra tyres and gears can be sent with the car if deemed advantageous but the entrant may not choose when and if these get added).
