Queensland Radio Circuit Car Racing Association.
Technical Rules - On Road Electric 1/10th SSF Tourer
Proposed Draft Rules - Created - 22/02/2011
1/10th Tourer: Super Stock Foam Class or SSF
The essence of the 1/10 Tourer class is competition between realistic models of full scale saloon/sedan cars
raced in Touring Car classes worldwide.
1.0 TECHNICAL INSPECTION
1.1 All cars must be presented to Technical Inspection for an Initial Inspection before the start of Controlled
Practice. The purpose of this Initial Inspection is to determine that the car meets these Technical rules for this event.
When the car passes this Initial Inspection, the Technical Inspector will mark the chassis of the car. Marks
which are made by engraving or the removal of chassis material are to be avoided. A driver may refuse to
have their chassis marked by methods of removing chassis material.
Once the chassis is marked, the chassis may not be changed without the approval of the Race Director. The
chassis may only be changed in the case of damage, which cannot reasonably be repaired.
Drivers must race the car initially presented to technical inspection during qualifying and finals in
accordance with the rules above.
1.2 All cars must be presented for technical inspection after each race.
No car will be allowed to enter the track surface without being presented for technical inspection.
1.3 All cars must be presented for technical inspection before and at the end of each final.
1.4 All motors and batteries to be inspected as necessary during qualifying and mandatory during finals.
1.5 All cars in the finals will be impounded at the end of the finals for further technical inspection, such as
motors, esc’s etc.
1.6 Only one car per driver is allowed.
2.0 BATTERIES
2.1 Any hard cased LiPo, LiFe or NiMh with the following requirements.
2.2 The maximum of number cells allowed:
Six (6) sub C Cells are allowed in class.
Two (2) Cell Li-Po/LiFe are allowed in class.
2.3 For the purpose of motive power, cooling fans, radio equipment and transponders only in all car classes,
and must conform to the battery section rules.
A receiver battery pack must only supply power to radio receivers for its operation and the control
only of addition equipment listed: speed controls, servos and transponders for their operation. No
other devices will be powered from a receiver pack.
2.4 Lithium Polymer Battery
7.4v (2 (3.7 volt) cells only)
No modifications allowed to the case and/or the battery
Open limit 6.6/7.4v – 6000+Mah Etc
Any physical distortion, denting, puncturing or damage to the hard case of
the Li-Po battery will deem the Li-Po battery to be ineligible for use.
2.5 Overcharging is not allowed (voltage higher than 8.4v)
Must charge in Li-Po sack or other device (fire mitigation device able to withstand
and contain a destructive failure without showing a flame).
2.6 Must be used with electronic speed control that has either a inbuilt cut-off
or used with an external cut-off device installed (6 volts minimum).
Must be charged using a Li-Po capable charger only at a maximum rate of 1C.
3.0 Motors
3.1 Ideally motors should be on the ROAR or a simular approved list.
(Future class changes may be possible for use of a suitable control motor)
3.2 Motor can, end-bell, & armature must be from the same manufacturer model.
3.3 Brushless Motor
Sensor or Sensor-less allowed.
3.4 Brushless Motors allowed.
Any commercially available 10.5 turn brushless motor.
3.5 Any 10.5T motor within the accepted KV rating will generally be allowed.
4.0 ESC – ZERO TIMING
4.1 SSF allows only zero timed electronic speed controllers to keep racing as close as currently possible, this includes esc that come only with fixed timing, or an esc that can run a zero timed mode.
4.2 If running a ESC that supports a zero timed mode, you must be able to reasonably prove it is currently running that mode, either by a feature indicating it, or by use of support equipment that can confirm it.
Both may be requested at any time during a race meeting, and results may be excluded if you can’t show either or both.
4.3 Legal ESC for SSF will compromise of known checked lists by major bodies, and include the ROAR Sportsman list and the Australian ARRCMCC offroad stock spec list, other approved ESC will be included and added to rule 4.4 following this one.
4.4 Added Legal ESC for SSF ~
Hobby Wing Justock
Speed Passion Cirtix Stock Club Race
5.0 GENERAL SPECIFICATIONS
5.1 Use of any and all tyre cleaners or traction additives is banned, being caught with either can result in loss of club membership and banned from the track.
5.2 Wheel nuts and/or axles must not protrude more than 2.0 mm beyond the wheels
6.0 DRIVERS AIDS
6.1 It is the objective of this rule to ensure that sanctioned Electric Circuit Events be a test of driver skill.
QRCCRA seeks to limit the type of driver aids to a minimum to achieve this objective. Traction control, active suspension and steering control by gyroscopes are not allowed. Sensors fitted to the car for the purpose of data management, recording or logging etc (eg. measuring suspension movement, wheel speed, motor speed, temperature, lateral forces or tyre slip) whilst the car is in motion are not allowed.
6.2 Unless an electronic or mechanical driver aid is listed below, it is not allowed for use in QRCCRA Events.
6.3 The fixed single ratio transmission may not include a mechanical device/s between the drive motor output and the gearbox input for the purpose of controlling torque. (eg ‘slipper’ clutch/fluid clutch)
6.4 A differential may include a mechanism for apportioning torque over the axle/s (eg limited slip
differential). This mechanism must only be capable of setting or adjustment manually whilst the car is
stationary.
6.5 A mechanical or electronic speed controller may include a mechanical or electronic device to limit the
current/voltage passed from the batteries to the drive motor (eg timed delay, current limiter, keyboard
programs). Setting or programming of such a device must only be possible whilst the car is stationary.
Changes to the setting or program during a race are not allowed.
6.6 Radio control receivers carried in the car may only have a maximum of Three (3) devices (normally the
steering servo, speed controller and transponder) connected when powered by an optional separate battery
supply for powering of the radio control equipment/devices. The use of any further channels to receive
electrical signals from sensors carried in the car is prohibited.
6.7 Cooling fans must be powered from the main battery pack that supplies the motive power for the car.
Fans can be wired into the receiver when not powered by a separate receiver battery and cannot be
powered from a separate power supply.
6.8 Any competitor found in contravention of the spirit or fact of rule 6.1 to 6.7 will be disqualified from
event.
7.0 CHASSIS AND DRIVE TRAIN
7.1 Two-wheel drive to front or rear wheels or four-wheel drive is allowed.
7.2 Chassis must have independent suspension on all four wheels. Each driven wheel must have a flexible
joint, eg: dog bone/s or universal joint/s in its driveshaft. Drive train and suspension design is free from
restriction. Flat Pan (1/12th and 1/10th Track Style) chassis are not allowed.
7.3 The Chassis must not be shaped to gain an aerodynamic advantage. In principle the underside of the
chassis must be flat and parallel to the ground along the entire length of the body-shell. Aerodynamic
shaped parts (splitters/diffusers/tunnels/etc) may not be fitted to the chassis.
7.4 Wheels nuts/axles must not extend more than 2mm beyond the wheels when viewed from above.
7.5 Reverse is not allowed - forward control only
8.0 DEMINSIONS & WEIGHTS
8.1 Description Min (mm) Max (mm)
Wheelbase ………………………………………………………………………. 250 270
Width to outside edge of wheels (without body-shell) 170 190
Width (with Body-shell) ………………………………………………………… 175 195
Length (overall with body-shell fitted) 360 460
**Roof Height, Bottom of chassis to top of roof ……………...…………….. 110 -
Wing Height must be below the roof. - -
Wing width (including endplates and supports) …………………………….. 125 190
Wing chord (including any flaps or extensions) see rule 9.11 - 40
Wing endplate (when separate) see rule 9.11 40mm X 20mm - -
Flap or Gurney tab extension above plane of wing ………………………… 3
Wheel Diameter 47 52
Wheel width (including tyre bead) …………………………………………… 24 31
Tyre Width 20 31
Tyre Diameter ………………………………………………………………… 47 67
** Roof height must be measured with a gauge at 110 mm in height. The roof must
clearly exceed the 110mm gauge, while the wing must not be higher that the roof at any point.
All measurements are to be checked with the chassis and gauge supported on a level block
**Roof cannot be modified in any way to gain extra height.
Body and Wing height should be checked prior to each race, in case of damage during racing.
8.2 Weight: ready to race including transponder, at all times during the race:
SSF = 1350 grams.
9.0 TYRES
9.1 SSF if formed around the use of the most commonly available foam rubber tyres.
9.2 Open foam tyres are permitted, any compound or brand, but must rate by the common shore system only, meaning tyres made within the usual 35, 37, 40, 42, 45 range etc.
Tyres are to be supplied by drivers at all events, no control tyres, but shore rating and number of sets may be limited to keep racing even and costs low.
9.3 Tyre material must not damage the racing surface.
9.4 Any driver using any other type of tyre will be immediately spanked.
9.5 There will be a tyre limit during a major event:
9.6 Either of two formats:
9.6.1 One (1) primary full set, with a second full set marked as replacements for use only when the primary set is damaged beyond reasonable effective use.
9.6.2 Maximum of two (2) sets of tyres for an event, drivers can have both sets out during qualifying, drivers can use any combination of the 2 sets. And both sets can be used in the finals in any combination.
9.7 All tyre sets are to be marked by the Technical Inspector before racing. This marking will take place before the driver starts the event.
Unmarked wheels/tyres may not be used on the car during qualifying heats and finals.
Every car will have their tyres checked by a Technical Inspection prior to entry to the track before or after qualifying heats and finals.
9.8 Technical Inspection marks need to identify the following. Each tyre/wheel assembly uniquely identifies the driver and the class for the driver. Technical Inspection is to leave its own unique mark on the
tyre/wheel assembly. Technical Inspection shall be responsible for recording the number of tyres used by
each driver.
9.9 It is the driver’s responsibility to ensure all technical inspection marks and any manufacturer identifying marks on any part of the tyre assembly are kept intact and clearly visible for the Technical Inspectors. If this is not the case then that tyre assembly cannot be used.
9.10 Tyres will be issued to drivers at the beginning of each race day, and it is the responsibilities of the drivers to return to Technical Inspection all tyres at the completion of each day. Tyres must not be removed from the Pit or race track area at any time. Failure to surrender the tyres at the end of the day or removal of the tyres from the Pit area except for racing will result in the driver being disqualified from the event.
9.11 No more than 1.5 mm of wheel outside diameter may be exposed from the tyre on the outside of the wheel when viewed from the tread (eg: not covered by the tyre)
10.0 BODY SHELLS
10.1 2 & 4 door sedan style bodies are allowed that are currently on the IFMAR, EFRA or ROAR body listings and fit within the GLOBAL BODY SPECIFICATIONS for electric touring cars.
Sports coupe, GT style or hybrid bodies will not be allowed unless approved by IFMAR, EFRA or ROAR.
10.2 When starting the race, a body-shell must be neatly finished and complete.
The body-shell must be a reasonable, realistic and facsimile of the full-size car on which it is based, with
particular attention to realistic height, scoops, vents, wings and aerodynamic devices.
10.3 All details of front and rear lights, air intakes and windows must be clearly contrasted from surrounding
paintwork.
10.4 Bodies must have transparent windshields and/or side windows and/or rear windows. (eg.Internal detail to be clearly visible when on track situation) Open or opaque windshields and/or side windows and/or rear windows are not allowed.
10.5 Body-shells may not be cut above the lower door line.
10.6 Body-shells may not be cut above the lower rear bumper line. (2009 maximum height of 45mm)
10.7 Body-shells must be securely fixed to the chassis at all times during a race.
10.8 Only one cut out, maximum 10mm diameter for the radio antenna, may be made in the body except for
clearance for the wheels (wheel arches), body mounting holes and lap timing equipment.
10.9 All wheel arches must be cut out as on the original car. No more than 10mm clearance between the wheels and the wheel arches is allowed.
10.10 Only one wing allowed, fitted in the same place as the wing on the original car. The rear edge of the wing may overhang the rear of the body, including the bumper by no more than 10mm.
10.11 The wing must not extend higher at any point, including endplates and flap, than the height of the roof of the car. Side dams may be fitted but must be a reasonable representation of those fitted to the original car and must fit in the 40 mm x 20 mm rectangle allowance as part of the wing.
Gurney flaps if fitted must fit within the wing dimensions.
Chord 40mm measured from front edge diagonally to rear edge at all points across the wing.
10.12 Front splitters/spoilers must be moulded into the body-shell in the same position as the original car.
10.13 One tab or gurney flap only allowed which must be fitted securely to the rear wing, and must be contained within the wing dimensions.
10.14 Wings/splitters/spoilers/tabs/gurney flaps must be fixed rigidly to the body and or wing, and may not be moved whilst the car is in motion.
10.15 Foam bumpers may be fitted. No part of the bumper may extend outside the body-shell when viewed from any direction, nor be lower than the chassis.
Future Revision Notes:
Control motor with fixed timing may be brought in to keep class racing as close as possible.
Body shells may be opened to GT style bodies, if found not to give any distinct advantage.