Our club rules:
1. ONE WAY ROUND THE TRACK ONLY!
2. No Powerboys batteries – Banned for safety reasons.
3. Only remove cars from the track if it’s on FIRE, no shell on car or missing wheels!
4. No walking on the track at anytime.
5. Keep kids under control. (no running around)
6. Keep your area tidy and put rubbish in the bins at the end of the table.
7. Have a fun and enjoy your day of racing.
Abs bangers & Junior Bangers
Chassis and Top Plate may be off-set a maximum of 5mm from the centre of the chassis.
Top Decks
Original Mardave alloy top plate or GRP top plate may be used; Kamtec or Large-IT ones are recommended. Milsy and Fuller top plates are also permitted.
Any top plate must not protrude any further forward than in line with the steering servo saver.
The width of the top plate should not extend past the centre line of the wheels.
Top plate must have a maximum 3mm thickness.
No full length double decks.
Batteries
Only 4 cell Sub C Ni Cads & ni-mh cells permitted.
Max 5000 Mah for heats and finals
They must be covered in clear heat shrink or the manufacturers covering with identification clearly visible. Battery bars must be no wider than the battery.
Only plastic or nylon battery retainers permitted no extra plates inside the car.
Cells running down the centre of the chassis / top plate may have a 5mm off-set tolerance from the centre of the chassis plate. All components must remain within the width of the chassis plate unless the battery is in the standard Kamtec / Large-IT position.
Speed Controllers
Mardave/Large It/Tamiya/Kamtec mechanical & resistor type speed controllers only (K9 microswitch is acceptable).
No Electronic Speedos (ESC).
No additional material allowed on the top plate, with the purpose of it being to protect the manual speed controller. The top part of the K9 is permitted however.
Speed Controllers maybe off-set a maximum of 5mm from the centre of the chassis.
Gears, Motor Pod & Axle
32dp pinion gears only. Pinions Minimum 12 Tooth, Maximum 18 Tooth.
Only standard spur gears to be used – Mardave / Kamtec / Tic / Lee12, 46, 48, 49, & 50 tooth only.
Gear sleeves/clips are allowed on the gear arms.
Derlin gears, alloy drive hubs or Z Drives are not permitted.
Standard Mardave / Kamtec / TIC / Lee 12 axles can be used.
Ball races may only be used on the back axle.
Standard Plastic Mardave / Kamtec / TIC / Lee 12 motor pod only.
A pivot ball must be used and the pod base must be fastened to it by the cup on the plate as originally intended. However the use of a small clip, the same width as the cup may be used to prevent it coming off and a bolt/screw can be fastened through the cup into the pivot ball. The new Kamtec motor pod set is permitted.
No GRP or alloy rear pods.
Any new release gear, motor pod or axle hop up be agreed on by the RCBWS committee before use.
Wishbones, Steering Arms & King Pins
Steering arms can be standard or may be modified to the ball and link type.
Wishbones are to be standard; either the basic injection moulded Mardave/Kamtec/ TIC/Lee 12 ones and must be hollow. No alloy wishbones. The Mardave diamond wishbone is not permitted.
All wishbone holes must remain in their original position.
No wishbone protectors or any other strengthening of wishbones.
Front springs must be fitted to all lengths of vehicles.
Only standard, hardened and stainless Kingpins allowed.
No pipe to be fitted to kingpins.
No adjustable kingpins to be fitted.
Strut braces are not permitted.
Any new release wishbone, steering arm or kingpin hop up be agreed on by the RCBWS committee before use.
Inner Wings
Kamtec / Danza Salvage & Signs inner wing kits only.
Front Wings must be cut to replicate their full-size counterpart.
A small ABS bumper may be added to the front of the wings for realism, by using 2 small screws/bolts (Granadas & Crowns only). These must be for decoration and not strengthening.
Inner wings can be either body or chassis mounted and can be melted to fit inside the shell.
If the wings are body mounted then you can use 4 bolts to fasten the wings to the shell.
If the wings are chassis mounted then no more than four bolts to be used.
No folding under or glueing of the wings.
Any new release inner wing kits to be agreed on by the RCBWS committee before use.
Permitted Motors
Mardave G1 & G2.
HPI Saturn 20T & 27T.
Kamtec Satan 20T.
Kamtec 21T.
Core 21.
Axial 20T.
Etronics 20T.
Minimum 20T, any motors not listed are to be approved in advance by the RCBWS Committee.
Tamiya Mabuchi 540 Silver Can with black end bell.
Heat sinks can be fitted.
Original labels must remain intact and motor tabs remain untouched.
Fans must remain intact for RCBWS heats & finals, no part of the motor internals can be modified.
Use of motor cleaning fluids and additives is allowed.
TAMPERING WITH MOTORS WILL NOT BE TOLERATED – Anyone seen or any evidence of tampering or anyone suspected of tampering, the driver will be asked to change the motor. If found to be tampered with motors, the driver will lose all points scored and excluded.
Tyres & Wheels
Must be foam tyres and commercially available.
No tyre additives permitted.
Any aftermarket wheel must be of the same diameter as per Mardave, Kamtec, Contact Wheels, or TIC Bruno Wheels.
Ball raced front wheels are not permitted.
Alloy wheels are NOT PERMITTED.
No cut down wheels that allows the shells to be slammed.
Wheels must be 26mm width.
Shells
All shells to be cut to the cut lines.
Wheel arches must be cut to the lines or lips marked not above or below unless running inner arches when the front arches can be cut higher.
No flared arches on shells.
Sills may be cut or folded to resemble a full-scale counterpart.
Windows must be completely removed as close to the original car as possible.
Front window must have at least ¾ of the plastic removed to allow a name visor.
No window gussets.
Roping and gluing of pillars is permitted.
No unsightly, rude or offensive slogans or gestures on the shells.
Shells must be in line with the agreed shell lists.
When mounting the shell the arch must not come lower than the top of the wheel lip unless the shell has a low rear wheel arch (e.g. mk10 Jag, DS420), when the rear arch must not be lower than the top of the rear wheel nut.
There must be a 3mm gap between the shell and the floor.
Any shell with bumpers removed the shell must remain the same height as if they were still fitted, for example mk7/8/9 Jaguar bumpers may be removed but the shell must remain the same height as if they were on there, in other words no slamming!
Shells used must be correct to the chassis, i.e., no SWB shells on LWB chassis, no LWB on minster or XL chassis.
No unpainted shell permitted for Championship finals.
XXLWB Shells may be held together by 0.5mm alloy (same as used in alloy bangers).
Body Mounts
Cars must have 4 mounting points.
These may be of any non-metallic material, not exceeding 10 mm in width and must not protrude more than 10mm through the body shell.
Mardave V10 & Kamtec B10 style mounts may be used. If you use two V10 or B10 style mounts, no other shell securing points, i.e. posts can be used. Only 2 V10 or B10 mounts can be used to secure the shell to the chassis.
If you are using V10 or B10 mounts at the front and on the top plate, you must remove any rear V10 & B10 mounts.
If you are using front and rear V10 or B10 mounts, you can keep the bottom part of the V10 or B10 on the top plate, provided it is not used to secure the shell. (We recommend using front posts).
If you use the V10, you can use all six mounting points and secure the shell using clips through all 6 lugs.
You may use 4 M3 coach screws or M3 nuts, bolts and washers to secure the shell, rather than body clips.
Body clips/M3 nuts can be cable tied at the ends and together to prevent them coming loose from the body mount. Tape must not be used to cover the cable ties.
Shell strut. Only plastic/rubber/metal washers, slightly bigger than the post size but not exceeding 1″ square to be allowed to raise the shell up off the posts.
Body mounting for XXLWB (600mm chassis) you may use two body mounts per 200mm so six would be allowed.
Cable ties must be trimmed back.
Roof Fin
The roof fin must be fitted to the roof of the car and must not have sharp edges.
It must be plastic and no larger than the standard Kamtec roof fin.
It must have the driver’s number clearly visible on both sides.
It must not be mounted forward of the halfway point on the roof.
No mascots, dummies or bolt on engines etc on the outside of the body shell.
Shell Repairs
You may use glue sticks, tape, cable ties, and plastic/solvent weld with joining plates in conjunction with nuts & bolts as to their full size counterparts for REPAIRS only.
The above repair methods are allowed anywhere on the INSIDE of the body, except if using tape, whereby you can use tape on the outside but can only overlap the crack/split/decimation by 1″ either side of the damage.
If using plastic for repairs;
Neither armouring nor the use of mastic allowed.
No double skinned body shells.
Each club to specify what repair methods can be used
NO REPAIRING OF SHELLS BEFORE THE FIRST RACE.
Ride Height
Scrutineers will have a 3mm clearance plate, which your vehicle must run freely over the top of, including the shell. Should it scrape in any way your vehicle will fail scrutineering.
This is in the interest of protecting the race carpet from damage.
Ballast and Weights
Adding extra corner weights or ballast is not permitted.
Bumpers
No internal or external bumpers permitted.
Servo Savers
Any type of servo saver or bell crank style servo saver is permitted.
A small piece of ABS/GRP is allowed behind the servo saver as a servo saver protector.
Servo Saver protectors are permitted.
Roof Grades
The only roof grades to be used on shells at BWS events, roof grade meetings and feature events, are the recognised ones which have been won at BWS clubs.
Stretched Limousines
Limousine chassis must be the same thickness alloy as the alloy V12 (maximum 3mm) & must have the correct body shell to fit, maximum length for a Limousine chassis with body shell is 2 ½ ft.
Limousines / scratch builds, re-melts must be of a genuine full size counterpart, that has been raced.
There must be no struts or braces along the length of the chassis.
Any top plate must not protrude any further forward than in-line with the steering servo saver.
The width of the top plate should not extend past the centre line of the wheels.
The top plate must have a maximum 3mm thickness and be made of grp only.
The top plate must be fixed to the chassis in a similar style to the Large-IT / Kamtec top deck.
Stretched Limousine shells must have the front and back sections of an existing shell and represent a full size stretched limo.
The stretched sections must be made of 2mm abs or 0.5mm aluminium, and no other material.
Stretched Limousine shells must use a 2mm thick abs plate to join each of the sections.
The joining plate can stretch no more than 1 inch either side of the join, on both the sides and the roof.
The maximum depth of the plate on the sides should be equivalent to the depth of the original shell.
The maximum width of the plate for the roof join must be equivalent to the width of the shell.
The joining plates must be on the inside of the shell.
To fix the joining plates to the shell you can use EITHER a maximum of 4 2cm, M3 style bolts or rivets, one in each corner, or you can use glue. You cannot use both.
You can use filler on the outside of the shell to disguise the joining crease, but it must be skimmed back flush with the surface of the shell.
DD RULES
After 15 or 20 minutes, any car stuck on its side or roof, or in a pile-up, that is unable to right itself after 10 seconds of time will be counted as out.
Only 3700 Mah cells permitted.
BREAKING OF RULES
Anyone found to be breaking any of the above rules, being abusive to other racers or organisers, touching cars on the track during a race, lowering shells or using a twisted motor, will be banned from any remaining rounds and title events.
If any of this list does not cover your query, please contact your club rep.
PLEASE NOTE: IT IS YOUR SOLE RESPONSIBILITY AS THE DRIVER, OR PARENT OR A JUNIOR DRIVER TO ENSURE YOUR CAR IS BUILT TO THE ABOVE RULES. FAILURE TO DO SO WILL RESULT IN POINTS BEING REMOVED FOR THAT MEETING WITHOUT ANY NOTICE OR EXPLANATION. A SECOND OFFENCE WILL RESULT IN DISQUALIFICATION FROM THE REMAINDER OF THE SERIES.
2lt saloon construction rules 2023
1)Body to be ABS or Lexan and be representative of full size 2 litre stock car and no spoilers allowed.
Any car raced in real life 2 litre saloons past and present that shell can be used.
2) Any oval based chassis will consist of one continuous sheet of aluminium or glass-fibre reinforced plastic (composite) or Carbon Composite chassis that extends from a minimum.
10mm ahead of the front axle line and runs continuously along the car to end a minimum of 25mm behind the rear axle line.
3) Rear pod may be of ally or plastic constriction it should have a single pivot point at the front and two springs to the rear with a rear guide pin, ride height adjustable rear pods are allowed.
4) External plastic bumpers to be fitted to the chassis front and rear, front to be grid and representative of a full-size stock car.
5) Overall maximum width of the rolling chassis to be 160mm (178mm including body and bumpers) wheelbase should be 205mm +/-10mm
6) Metal materials used in the rolling chassis may only be steel, brass or aluminium. Special metals (such as titanium) are not allowed. Brass and lead only may be used as identifiable.
Weights to meet the weight limit and when removed do not have any effect on the cars function as a rolling chassis.
7) Separate dampers are only allowed on the rear suspension.
Front suspension may be independent provided that the suspension design does not have any pivot, rod or other mechanism that alters the wheel camber in roll relative to the chassis during its full travel.
9) Rolling element (ball) bearings are allowed on the front and rear axles.
10) Minimum weight is 1100g for both Brushed and Brushless.
11) Min 25mm. Max 26mm width of tyres and Max 60mm diameter no Min diameter of tyres but the tyre must cover the wheel.
12) 3 bolt GT12/LMP style wheels are not allowed.
13) Diffs are not permitted
14) Z drives and alloy pods are allowed
15) Powered by either a 13.5t/10.5t brushless motor, with a 1s lipo battery esc must be in BLINKY mode with a max £150rrp or a 6 cell brushed setup with a Kamtec k21, Core21 or a Saturn 21 motor
16) all lipo batteries are subject to a voltage test max of 4.2 volts, prior to any race at committees wish anyone who fails the test will be not permitted to race that heat, and anybody who refuses to partake in a voltage test may also be removed from the heat/final.
17) gearing is open both 32dp and 48dp are allowed z drive hubs are allowed.
18) only single bolt 12th scale wheels allowed
19) tyre additives are NOT allowed
20) parts from other manufacturers may be used if they serve the same purpose as the part they are replacing.
21) minimum ride height of 3mm
22) All added weight must be bolted to the chassis with a nut and bolt except under lipo battery weights.
23) all cars must be commercially available to buy, anyone wishing to manufacture a car must go through the process of test and development at their regular club with the club’s agreement, if they wish to then race the car, they must be able to make units available to purchase by other racers, it must comply to the current construction regulations if being sold to race, it must be of a comparable price to those being sold by other manufacturers and not overly priced to limit availability. Anyone wishing to develop or modify a car that does not comply with current construction regulations has to do that test and development at their local club with their agreement, any changes to the construction rules that allow new designs to race would need to be approved at the BRCA Agm following the correct procedure.
1) Body to be ABS and a reasonable representation of a full size 1300/1400 stockcar. Spoilers are not permitted. Shells to be of a ‘hot hatch’/ ‘cc’ style no estates or saloon styled shells. Windows Must be fully cut out.
2) The chassis component will consist of one continuous sheet of aluminium or glass fibre-reinforced plastic only. Chassis must extend from a minimum 10mm ahead of the front axle line and runs continuously along the car to end a minimum of 25mm behind the rear axle line. winged style chassis is permitted provided it is available in a kit from. i.e. Kamtec/mardave/tic/large
3) Mardave/ Kamtec type rear pod base plate, pivot ball and standard V12 spring location, or equivalent parts in shape and construction and mounting locations. 2 rear springs only.
3a) standard Mardave/Kamtec A-arm style front wishbones Only. To be made of plastic only no alloy. NO zen, Schumacher, Rsgt, Rxgt, Atom, venom style parts are to be used. (GT12 parts not eligible)
4) External plastic bumpers to be fitted to the chassis front and rear. Front to be grid and representative of a full-size stock car. Min height of 25mm and max height of 35mm from chassis to top of the bumper. If a single rail rear bumper is used, it may be spaced up from the chassis. Spacers to be a max length of 8mm. If a grid bumper is used on the rear it must follow all rules of the front bumper. Fixings are not included in height measurements.
5) Overall maximum width of the rolling chassis to be 160mm (178mm including body and bumpers) 5a) Wheelbase of 205mm +/-5mm only.
6) Materials used in the rolling chassis may only be steel, brass or aluminium. Special materials (such as titanium or carbon) are not allowed. Brass and lead only may be used as identifiable weights
6a) chassis must not have any extra holes drilled or added to allow extra ‘flex’ in the chassis component and that the chassis must be a solid design not slotted to achieve extra movement.
7) Damper tubes are not allowed. Oil filled shocks and dampers are not allowed. Front suspension may be independent provided that the suspension design does not have any pivot, rod or other mechanism that alters the wheel camber or castor in roll relative to the chassis during its full travel. and must use the standard two bolt fixing, and not modified/elongated
8b) Ride height/castor can be adjusted with shims/washers. Shims and washers must be made from a solid substance to be a consistent thickness start to finish and rigid. No wedge-shaped spacers or ‘o’-rings are to be used on any chassis mounting points.
9) Rolling element (ball) bearings are allowed on the front and rear axles.
10) Min 25mm, max 26mm width of tyres and Max 60mm diameter no Min diameter of tyres, but the tyre must cover the entire wheel edge to edge.Tyre additives are NOT allowed
11) Diffs are not permitted
12) Gearing is limited to a 32dp pitch for pinion and Spur gear.
13) Z drives and alloy pods are permitted. height adjustable rear pods are not permitted
14) Any 12th scale single bolt wheel to be used, mounted onto a steel axle only.
15) Powered by 4cell brushed setup. cell layout is free and open for driver’s choice. Motors permitted to follow the BRCA F2 motor spec and list.
Currently HPI Saturn 20, Kamtec K21, kamtec satan and Schumacher Core21.
15a) Speed controller maximum RRP of £50. Electronic speed controller or mechanical. Resistor type speedo controller permitted.
16) steering servo to be of a maximum of £50 RRP low profile servos are permitted providing they do not exceed the RRP
17) No GT12 hybrid style cars to be used.
18) Additional holes may be drilled for the re-mounting of the body post and aerial mast locations only.
19) parts from other manufacturers may be used as long as they serve the same purpose as the part they are replacing
20) minimum ride height of 3mm
21) all added weights must be bolted to the chassis with a nut and bolt
22) all cars must be commercially available to buy.
Shells
austin a40 abs 727/532
vauxhall corsa 710
ford ka711
vauxhall nova 700/701
honda civic 439
toyota starlet standard 705
pug 206 205 206cc
vw mk1 golf 708
vauxhall tigra 717
honda crx 707
mazda 323
nissan almera 453
nissan micra 722/721
renault clio 702
mini/bmw mini
ford escort mk3
fiesta mk1
Fiesta mk6
Fiesta mk7 standard
Rules are here to keep racing fair and if cars aren’t right you’ll have the chance to change them.
F2 basic rules
Any f2 style car
Any brushed esc or manual speedo
Any 4 cell Nimh battery up to 5000 mah
Motors with 20t or more only!
National spec cars are welcome.
No following in, No oppo, contact must be bumper to bumper with no straight lining into the bends please.