Indoor Classes

We have some General Indoor Rules that apply to all racers.

Then we have a set of basic rules for each of our classes.

For our next club championship (10 weeks from 9th April 2024) the classes we are running are:

We also have rules for these additional classes that have not been active for some time, but could make a return in future. If you would like to run one of them please get in touch

General Rules (all classes)

Lipo Handling

Maximum LiPo voltage of 8.40v for 2S and 4.20v for 1S must never be exceeded (even with HV LiPos)

LiPos must be charged and discharged in closed LiPo sacks.

Charging must be balanced, and at no more than the maximum charge rate advised by the manufacturer / supplier (or 1C if not specified). Additionally charge rate must not exceed the club maximum of 15 amps. Discharge rate must not exceed 20 amps

Anyone found to be exceeding these voltage or charge/discharge rate rules may be asked to leave the venue and reported to the BRCA.

Tyre Additive

Only tyre additive from the BRCA approved list may be used.

Ride Height

Minimum ride height is  3mm for GT12 and 5mm for all other classes.

GT12 chassis must be sanded and smoothed at the edges to avoid cutting the carpet. Bodyshells for all classes must be rounded off at the wheelarches

 

1:10 Touring Car Rules

Motor/ESC: 17.5T Blinky
Battery: 2S Lipo
Tyres: Open (rubber)
Min Weight: 1320g

1:10 Front Wheel Drive (Frontie)

Motor/ESC: 17.5T Blinky hobbywing combo only, must be set to 17500 RPM limit with a minimum FDR of 5.0 NO LOWER
Battery: 2S Lipo
Tyres: Treaded tyres, or new ETS slick tyres both made by Ride pre-mounted, no alterations permitted to wheel or tyre and no sanding tyres, it is only allowed to remove the centre seam
Body: From the approved list with the supplied wing, no TC bodies
Other: Any commercially available car. Converted 4WD TC permitted but ALL rear running gear to be removed and motor to be in front 50% of the car.

 

Mini Touring Car (MTC) Rules

We race to UK MTC rules. Rubber tyres preferred but drivers who run on foams are also welcome.

The latest rules are published on the UK MTC Facebook Group (Facebook login required)

Current version at time of writing (version 1.04 / July 2019) also available here (pdf)

 

GT12 Rules

This class is not currently active. If you would like to run it please get in touch

Motor/ESC: 13.5T Blinky
Battery: 1S Lipo
Tyres: Open

 

Tamiya Truck Rules

This class is not currently active. If you would like to run it please get in touch

Kit: Tamiya Racing Truck TT-01E
Motor: Kit standard (Tamiya Torque-Tuned)
ESC: Tamiya Kit ESC (tble-02s) or Hobbywing 1060
Battery: 2S Lipo or 6 cell NiMH
Tyres: Kit tyres only
Wheels: Tamiya Truck or M-Chassis Wheels
Chassis: Kit tub chassis
Body Shell: Kit shell or other truck-style shell of similar profile, weight and size (e.g. Montec)
Gearing: Any Tamiya-available gear ratio, i.e. Any compatible Tamiya spur and pinion, or third party items of identical size and pitch.
Permitted Hopups: Ball races. Oil-filled shocks. Aluminium parts which do not provide a speed/handling advantage or alter the geometry.

No other changes from the kit standard parts are permitted.

 

Tamiya  M-Chassis Rules (Stock)

The philosophy: Fair and fun racing. Level playing field. Modest budget. Same motor(s) and gearing for everyone. Chassis and components limited to what you would find in the box of a genuine Tamyia M-Chassis kit (including the ‘R’ variants), plus a small number of specifically permitted upgrades (see below). Don’t look for loop-holes!  Build you car to the spirit of these rules and have fun trying to race your car to the front of the field. 

Kit: Tamiya M-01, M-03, M-05, M-06, M-07, M-08 (including “Pro” and “R” variants) Tip – M-07 is most popular with our drivers
Motor: Tamiya Torque Tuned or 27T silvercan (Mabuchi RS540SH or Johnson 540J)
ESC: Tamiya Kit ESC (tble-02s) or Hobbywing 1060
Battery: 2S Lipo or 6 cell NiMH
Tyres*:
Rush Mini Tyres 30R Pre Glued / Volante Pre-glued Mini Slick 30R
Tip – Cheaper than Tamiya wheels + tyres without the need to assemble and glue yourself.
Tip – Volante’s 5-spoke wheels are preferred as more robust than their multi-spoke version 
OR
Any Tamiya-manufactured 60D size tyre with Any Tamiya insert
Chassis: Kit standard chassis
Body Shell: Any body designed for M-scale cars (M-Chassis or MTC) of the correct wheelbase and that covers the chassis and wheels without modification of the chassis or body (e.g. no cut outs). General track rules about ground clearance and removing sharp edges that could damage the carpet continue to apply.
Wings: Permitted but must be the wing supplied by the manufacturer for the body being used, or a replacement of the same size and profile.
Gearing: Any 20T .6 pitch pinion (or 21T forM-06). Kit standard gear set, or Tamiya reinforced gear set of identical ratio
Differential: Tamiya kit standard gear diff, or alternative sealed oil filled gear diff.
Permitted Hopups: Ball races. Oil-filled shocks. Servo saver. Foam bumper. Universal joint/double carden drive shafts. Aluminium parts which do not provide a speed/handling advantage or alter the geometry.

No other changes from the kit standard parts are permitted.

Additional Notes (not part of the rules, but to aid understanding of them)
If a part is not included in the box of a Tamiya M-Chassis kit and is not an additional item permitted by the rules above then it must not be used. If you’re not sure about a part then you can consult the build instructions or parts section of the relevant Tamiya manual:

M05R Manual 
M07R Manual 
M08R Manual

A few specific clarifications based on the above information (this list is not exhaustive):

  • Rear anti-roll bars are permitted on the M07 (as included in the M07R kit). No front anti-roll bars are permitted on any model (as not included in any M-Chassis kit)
  • Suspension parts may be aluminium replacements, but must be of the same geometry and angle as the kit original for your model – e.g. M07 front suspension mount = 5°.  If in doubt stick with the original kit part or genuine Tamiya reinforced plastic part which are durable and cheap. (If anyone has time to locate or produce a full list of the parts and angles please share with David Ball and he’ll add it here)
  • Clones of the Hobbywing 1060 ESC are permitted, but must have the same specification and features (e.g. no programmable capabilities, drag brakes, high voltage BEC or anything else the HW 1060 doesn’t have).

 

Tamiya  M-Chassis Rules (Modified)

The philosophy: An alternative for more experienced Tamiya drivers who would like the opportunity to run faster electrics and customise/tune their cars beyond what the stock rules allow. This is a new class being trialled from October 2024 onwards and will be kept under review. If there are insufficient entries in a given week or there is a more general problem with heat space during the busy winter period drivers may be asked to join the M-Chassis stock class and set their cars up according to those rules (mod cars will not be raced in the same heat as stock due to speed difference)

Chassis: Either M07 or M08 (R’s included)
No aftermarket Carbon or fibreglass chassis plates allowed.

Motors: Brushless Hobbywing Just Stock 13.5 FTM (HW30408010)
(or Brushed Core RC 15 turn)

ESC: Brushless Hobbywing XERUN XR10 Just Stock G3/ G3S (HW30112003)
(or Hobbywing 1060 or 1080 or similar spec)

Tip: Motor and ESC available as a combo: Hobbywing Combo G3S ESC & Just Stock G2.1-13.5T motor (HW38020371)

Battery: Any 2S 7.4v or 7.6V HV full length or shorty packs available
Charged to 4.2v per cell only and charge current to BRCA regulations to said lipo’s.
(If you’re under any confusion, please look on BRCA site for charging C ratings for
your lipo battery’s)

Gearing: Only Tamiya 52 tooth main Differential gear.
Only Tamiya gear sets for M07 & M08. (No RW or similar smaller spur gear sets).
Pinion gears only 0.6 mod 18t-19t-20t-21t-22t-23t only.

Tip: 18-20t likely to work best. Larger pinions may be a problem for motor temp

Option Parts: Any option parts are allowed as long as they are made specifically for the M07 &
M08 chassis Inc. any handling enhancements. (Not hand made one offs)

Tyres: Any M-Chassis wheel and tyres (Rush 24-30’s……..)

Wheelbase: 210mm-225mm-239mm
Width: No wider than an M-Chassis body shell.

Body shells: Any available M-Chassis shell to suit the Wheelbase & Width (see above)
Body Wing: The wing which comes with the Body Shell.
Weight: Any weight.

Tip: Any of the above electrics can be purchased from either your local model shop Active Scale Models
Or SC Models etc. SMD Direct have a good range of 0.6 mod pinions in stock.

 

Mardave Rules

These rules are a copy ( with permission) of the very popular Basildon Buggy Club mini rules.

This class is based on the basis on the principals of close, fair, and low-cost racing. Whilst other makes of car can be used, they must be of similar design and construction to the Mardave Mini Assassin range of cars. Performance is limited by the construction, and cars should be run “out of the box,” with minor modifications such as manufacturer produced parts.

The Rules outlined below may not necessarily cover every single aspect of car construction and drivers are required to follow the spirit and intention of these rules if any ambiguity is discovered. If you are in doubt of your car being within the rule set, please ask a Race official to clarify. DO NOT JUST ASSUME MAKING CHANGES TO YOUR CAR IS OK.

1. General Rules
1.1 Cars may use any make of clear Lexan Austin/Morris/BL Mini shells (NO ABS).
1.2 No convertibles or pick-ups can be run.
1.3 Spoilers are allowed but must be to the following dimensions.  160mm wide (max).  35mm depth +/- 3mm.  25mm side height +/- 2mm.  15mm max height from the top off the shell.
1.4 Windows must be clear, no tint or black out.
1.5 Headlamps and grills must be defined. Lights are not allowed to be used on the car.
1.6 Shells must have no sharp edges that could cause harm to other racers/marshals or damage the carpet.
1.7 Shells must run a minimum clearance of 4mm.
1.8 Body and chassis must be securely joined at all times while the car is on the track.
1.9 Wheel rim diameter (not the tyre) maximum is 40mm, and 26mm Width.
1.10 Wheels must be fixed by a single fixing.
1.11 Tyre treatments are permitted providing they are on the BRCA allowed water based additive list.
1.12 Wheel nuts and/or axles must not protrude more than 2.0mm beyond the outer edge of the wheels. No more than 1.5mm of wheel outer side may be exposed (not covered with foam) on the outer edge of wheels.
1.13 Rigid bumpers made from non-resilient materials such as metal are not allowed (except for Juniors). Other sheet materials should be no thinner than 1.5mm, anyone found to be repeatedly damaging the track markings or other racers cars due to running big bumpers will be asked to change to a softer construction of bumper.
1.14 The minimum ground clearance of the car, not including the spur gear is 3mm.

2. Gearing
2.1 32dp only.
2.2 15, 16, or 17 tooth pinions ONLY.
2.3 48 or 50 tooth spurs ONLY.

3. Motor
3.1 Mardave G2 F20 only, these cannot be tampered with in anyway, motors may be water bathed, Motor additives are allowed. Motor Spacers can be used.

4. Speed Controller
4.1 Any commercially available Mtroniks (Mardave/Kamtec) brushed speed controller with a list price of less than £50.

5. Batteries
5.1 Batteries must be made up from 4 Sub-C Metal Hydride cells. Pack may be in “stick” or “saddle” format. These must be readily available to purchase. Batteries may be wrapped but the club can ask for the wrapping to be removed for inspection if required.

6. Servo
6.1 Any commercially available servo with a list price of less than £50.

7. Chassis and Components
7.1 The main chassis component will consist of one continuous sheet of material. It can be either fibreglass, carbon, or Aluminium.
7.2 Overall maximum width of the rolling chassis to be 165mm.
7.3 Wheelbase is to be 176mm +/-3mm.
7.4 Chassis components must be commercially available.
7.5 Chassis bottom must be flat with no protruding fixings.
7.6 No modifications are allowed to the chassis, but edges may be smoothed, sanded, or sealed.
7.7 2 springs may be fitted on the front end, and up to 3 springs may be fitted to the rear.
7.8 A solid axle must be used. No differential.
7.9 Rolling element (ball) bearings are allowed on the front and rear axles.

If in any doubt, please check with the race officials. If you wish to run prototype / development parts, this must be cleared with the race officials prior to the race meeting. You will not score championship points if you are running prototype /development parts.

Anyone found in breach of the rules will be asked to finish the meeting early and will not be allowed to finish the race meeting (no refund will be given), this will be followed by a 2 week ban from racing. Repeat offenders will be asked to leave the club permanently.