Hi everyone interested in Mardave circuit racing.
These are the rules we are currently running to at Hinckley and which will hopefully be the basis of any BRCA Mardave Circuit Section
2011 MARDAVE CONSTRUCTION RULES
CHASSIS AND COMPONENTS
STANDARD BRUSHED G2 / STOCK BRUSHLESS 13.5
Cars to be Mardave V12 or Caterham 7 based chassis and suspension. The car chassis plate may be drilled / cut-out to improve weight distribution / cooling, providing no sharp edges are left. No composite chassis allowed
Ball races allowed on both front and rear axles.
Either 32 or 48 dp pinion and spur gear may be used.
Mardave Differentials will be allowed.
Car suspension and wheel carriers shall remain as kit.
The use of countersunk holes and screws on the underside of the chassis is recommended but not mandatory.
Chassis top mounting may be changed, altered or removed.
The motor may be fitted to either side of the chassis, providing that there are no major modifications or alterations to the chassis or mounting blocks.
No external bumpers are permitted, although internal foam bumpers are recommended on the front.
Any make of servo, servo saver or track rod ends may be used on the cars steering system.
SUPERDAVE
As above but composite chassis allowed
BODYSHELL
Any commercially available Mardave or Kamtec, ABS or Lexan body shells may be used. The shell must remain securely fixed to the car throughout the race. Windows may be cut out on ABS shells.
No supplementary aerofoils or fins shall be fitted to the body with the exception of a rear wing if desirable. This wing must be non metallic, commercially available and securely fixed.
The body shell can be decorated to suit the individuals taste providing all coatings are of a permanent nature
The rear of the body shell should remain intact, i.e. not cut-out above the lower bumper line.
ELECTRICS
STANDARD BRUSHED
Any type, make and capacity of speed controller may be used providing it includes reverse.(MAX UK rrp £69.99)
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 Nimh’s and be listed on the BRCA electric board approved battery list. Battery mountings may be changed from the original.
Brushed Motors will be the Mardave G2 unit; At a GP, these motors will be issued to competitors at the beginning of the meeting. Additional ‘control’ motors will be available during the meeting. No other motors are allowed. Under no circumstances are fan motors, re-buildable motors, fitting of external bearings or skimming of motor armatures allowed.
Heatsinks with cooling fans are allowed
STOCK BRUSHLESS 13.5
No ESC’s with Boost/Turbo function. Only forward / reverse Brushless ESC’s from the following list may be used.
Fusion: - Exceed (Sport*, Race, Pro)
Castle Creations: - Mamba Max Pro.
LRP:- Ai Brushless Reverse, Ai Brushless Pro Reverse, SPX Brushless Reverse, SPX Brushless Bullet Reverse.
Nosram: - Evil Reverse, Evil Power Reverse, Matrix Brushless Reverse, Matrix Power Brushless Reverse.
Novak: - GTB (GTB 4 Cell, GTB, GTB Spectrum) GTB2, Havoc 1 Cell, Havoc Sport.
- *This is the preferred ESC used by most club members. Other suitable ESC’s may be added from time to time
NOTE: - Please make your own checks on compatibility with regards to 1s lipo use.
Brushless motors to have a minimum of 13.5 turns and a maximum UK rrp of £69.99
Cars to use 1s Lipo 3.7 volt batteries. In the short term, 4cell Nims 4.8 volt may be used but with a 150g weight penalty. 3cell Nims 3.6 volt may also be used without penalty.
Plastic whip aerials are allowed
Battery mountings may be changed from original.
Fitting of additional bearings to support the motor shaft are allowed.
SUPERDAVE
No ESC’s with Boost/Turbo function. Other than the Mardave G2BL, only forward / reverse Brushless ESC’s from the above list may be used.
Brushless motors other than the one in the Mardave G2BL system to be 10.5 turn minimum.
Plastic whip aerials are allowed.
Battery mountings may be changed from original.
Fitting of additional bearings to support the motor shaft are allowed.
TIRES
The tires may be changed from the original kit tires
Tires to be Min 20mm Max 26mm width and have a Max 60mm diameter. No minimum diameter for tires, but the tire must cover the wheel. Any foam tire make or compound allowed.
GENERAL SETUP
Any commercially available tire additive may be used providing it is non toxic, odourless and any excess is removed from the surface of the tires and tires to be ‘Touch Dry’ prior to the start of the race.
Varying types of springs and methods of limiting suspension travel may be used.
Minimum car ride height will be no lower than 3mm, 1mm at the spur gear.
Minimum car weight is 1kg (1000g)
Commercially available comm. drops may be applied to the motor armatures. PLEASE NOTE Any car not conforming to the above rules will still be allowed to race but may be placed in a class other than Mardave and will NOT gain any championship points
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