Chassis

• It must be as per the standard 2mm Mardave ally chassis available in various anodised colours, hot rod chassis with rear lip, or the 3mm Kamtec/Large It/Tic ally chassis with the following limitations: -

• If left to the original kit length, the chassis must be used with a shell that is made to fit it’s size properly.

• Countersunk chassis and screw set may be used.

• Limousine chassis must be the same thickness 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.

• Any Limousine entered must represent a full counterpart.

• No GRP or Carbon chassis are permitted.

• Any sharp edges should be smoothed down out on the chassis.

• There must be no additional strengthening of the chassis, by adding material along the length of it to prevent the chassis from bending.

• Rear extension plates are allowed, but should be no wider than the chassis, be no thicker than 3mm and must be covered by the shell.

• No L shape extensions allowed

• No front extensions allowed

 

​Top Decks

• Original Mardave alley top plate or GRP top plate maybe used, Kamtec or Large it ones are recommended

• Any top plate must not protrude any further forward than inline with the steering servo saver.

• The width of the top plate should not extend past the centreline of the wheels.

• Top plate must have a maximum 3mm thickness.

• No double decks.​

 

Batteries

• Only 4 cell Sub C NiCads & ni-mh cells permitted.

• Matched or unmatched cells permitted.

• max 5000 Mah for heats and finals and max 3700 Mah for D/D.

• 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.

 

​Speed controllers

• Mardave/Large It/Tamiya/Kamtec mechanical & resistor type speed controllers only.

• 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.

 

​Gears, Motor Pod & Axle

• 32dp pinion gears only. Pinions minimum.12tooth, max 18tooth.

• Only standard Mardave 50Tooth, 48Tooth & 46Tooth spur, the TIC 50 Tooth and the Lee Bishop 48Tooth and 50Tooth gears to be used.

• Gear sleeves/clips are allowed on the gear arms.

• Derlin gears or Z Drives are not permitted.

• Standard Mardave or TIC axle can be used

• Ball races may only be used on the back axle.

• Standard Plastic Mardave or TIC 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.

• No pod braces allowed or additional strengthening of the Motor pod. You are permitted to cable tie the pod to the motor.

• Any new release Gear, motor pod or axle hop up be agreed on by the rcBWS club reps 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 or TIC ones and must be hollow. No ally wishbones. The Mardave diamond wishbone is not permitted.

• No wishbone protectors or any other strengthening of wishbones.

• Front springs must be fitted.

• Only standard, hardened and stainless King pins allowed.

• No pipe to be fitted to kingpins.

• No adjustable kingpins to be fitted.

• No strut braces.

• Any new release wishbone, steering arm or king pin hop up be agreed on by the rcBWS club reps before use.

 

​Inner Wings

• Kamtec 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. 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/self tapping screws to fasten the wings to the shell

• If the wings are chassis mounted then no more than four bolts to be used.

• The Inner wings can be melted to ensure a better fit into the shell.

• No folding under or gluing of the wings

• Any new release inner wing kits to be agreed on by the rcBWS club reps before use.

 

​Motors

• Mardave G1 & G2.

• Graupner 500 standard.

• Johnson 540 with plastic endbell.

• HPI Saturn 27T.

• Tamiya Mabuchi 540 Silver Can with black endbell.

• Hunter systems 27t.

• Ansmann clash 28t.

• Heat sinks can be fitted.

• Original label should remain intact and motor tabs remain untouched.

• Use of motor cleaning fluids and additives allowed.

 

​Tyres

• Must be foam tyres and commercially available.

• No tyre additives permitted.

• Any after market wheel must be of the same diameter as per Mardave V12, Kamtec, Contact Wheels, or TIC Bruno Wheels.

• Ball raced front wheels are not permitted.

 

​Shells

• All shells must be made of ABS.

• All shells to be cut to the cut lines and NO front re-melts of any kind (even at BWS meetings).

• 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

• Windows must be completely removed as close to original car as possible.

• 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 list.

• 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 (eg 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

• No metallic roof fins

 

​Body Mounts

• You may use 2, 3 or 4 body mounts, no more or less.

• These may be of any non-metallic material, not exceeding 10mm in width and must not protrude more than 10mm through the body shell.

• Mardave V10 style mounts may be used. If you use two v10 style mounts, no other shell securing points ie posts can be used, even if u only use 2 one lug v10s.Only 2 V10 mounts can be used to secure the shell to the chassis.

•  If you are using V10 mounts at the front and on the top plate, you must remove any rear V10 mount.

• If you are using V10 mounts on the top plate and at the rear, you must remove any front V10 mount.

• If you are using front and rear V10 mounts, you can keep the bottom part of the V10 on the top plate, provided it is not used to secure the shell

• The bottom part of the V10 must not be doubled up

• 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 clips or cable ties.

 

​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 half way point on the roof.

• No mascots, dummies, hot rod spoilers, aerofoils, cones or bolt on engines etc. on the outside of the body shell.

 

​Shell Repairs

• You may use glue sticks, tape, cable ties, 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 shell only.

• Neither armouring nor the use of mastic allowed.

• no double skinned body shells

 

​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 permitted.

• A small piece of ABS is allowed behind the servo saver as a servo saver protector.

 

​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.

• There must be no struts or braces along the length of the chassis.

• A top plate may be used but must be no longer than the Large it LWB top plate.

• The width of the top plate should not extend past the centreline 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 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 0.5m 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 1inch 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, one in each corner or 4 rivets, 1 in each corner of joining plate, or you can use glue. You can only use one of these methods.

• 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..