Hotrod Construction Rules
1) Cars to be 1/12th scale Mardave V12 series chassis with any commercially available body shell.
2) Any make of servo saver may be used on the steering servo.
3) Any make of track rod or ends may be used.
4) The tyres may be changed from the original kit tyres
5) ABS body shells are allowed, all windows must be cut out or clearly defined. Polycarbonate body shells are allowed, windows must remain clear, not tinted or maybe cut out.
6) Ball races allowed on rear axle only. Rear axle and spur gear must remain as kit.
7) Chassis and front and rear wheel carriers and suspension springs to be as kit. Countersunk screws must not be used on the underside of chassis.
8) Any commercially available speed controller may be used, must have reverse fitted and working. Mechanical to have a maximum retail price of £30, Electronic £60. Receiver battery packs are allowed.
9) Only nine extra holes (max. 3mm) may be drilled in the chassis, two holes must be used for mounting the steering servo, two holes to be used for mounting an on/off switch, and one hole to mount the aerial tube, and a max of four holes for alternative battery mounting, if any of these items are not used, then the holes must not be drilled. Any holes drilled and not used must be filled. Chassis top mounting plate may be changed, altered or removed.
10) The motor may be fitted to either side of the chassis, providing that there is no modification or alteration to the chassis or mounting blocks.
11) External front and rear bumpers are not allowed.
12) Min 20mm.  Max 26mm width of tyres and Max 60mm diameter no Min diameter of tyres, but the tyre must cover the wheel. Any foam tyre compound allowed.  A minimum ground clearance of 3mm.
13) Cars to use four cells only, cells to be sub-C sized cells only, with a nominal voltage of 1.2 volts per cell, cells to be Nicad and Nimahs. Cells must be readily identifiable. Battery mountings may be changed from the original.
14) Motors must be Mabuchi RS540SH or the V14 only and must remain unopened. External motor bearings or fine pitch gears are not allowed.  No physical internal alterations to the motor brushes or cranking the com.  Any one found doing so will be banned for one season.
15)  Steel whip aerials and rollover masts are not allowed, and aerials must remain inside the body shell.
16)  At BRCA events drivers name and BRCA number must be clearly displayed at the top of the front windscreen, not less than 5mm high.
17)  At BRCA events the drivers roof grade colour (if known) must be on the roof of the car either painted or using tape. The colour must cover all of the rooftop.
18) Aerofoils are allowed but be commercially available
18) Alternative motor pinions may be used, providing no alteration is made to the motor mounting blocks. Motor fluid and additives are allowed. No tyre additives of any type allowed.
20)  If you intend to alter your car in any way that is not covered by the above, you must check with the V12 Hot-Rod scrutineer, for approval. We expect all drivers to use common sense when modifying cars and to enter into the spirit of the sport.
21) There must be a minimum ground clearance of 3mm; this is to include any protruding screws, 1mm clearance for spur gear.