MARDAVE BRCA CIRCUIT RULES

Hi Guys

FOR THE PROPOSED BRCA SECTION

2011 MARDAVE CIRCUIT CAR CONSTRUCTION RULES

CHASSIS AND COMPONENTS

GENERAL CONSTRUCTION RULES

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 although any commercially available springs may be used.
The use of countersunk holes and screws on the underside of the chassis is recommended but not mandatory.
Body mounts may be changed or altered.
Wiper board mounting plate may be changed, altered or removed.
The motor may be fitted to either side of the pod, either directly or via a spacer/plate(to prevent heat transfer and softening of the blocks, or for weight distribution) providing that there are no alterations to the mounting blocks.(Thinning of pod to give clearance to motor wires, drilling of a hole for access to pinion grub screw and/or addition of tie bar to prevent distortion are permissible)
No external bumpers are permitted, although a firm foam internal bumper is mandatory on the front.(10mm minimum cross section)
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. Dimensions not to exceed those of the standard chassis and must be one piece, i.e. no “T” bar or link style. Wheelbase and track as V12 kit.

BODYSHELL

Any commercially available body shell manufactured specifically for the Mardave V12 in either ABS or Lexan may be used. Shells from manufacturers other than Mardave and Kamtec must be submitted to the committee for approval. Realistic representations of full size racing cars positively encouraged.

NOTE, NO 1/12 WEDGES. 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 realistic size 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 only. Battery mountings may be changed from the original.
Brushed Motors will be the Mardave G2 unit; At a National or GP, these motors will be issued to competitors at the time of booking in.(INCLUDED IN ENTRY FEE) 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 commutators allowed.
Heatsinks with cooling fans are allowed.
STOCK BRUSHLESS 13.5

Only forward / reverse Brushless ESC’s with NO TURBO or BOOST or on the fly timing advance function from the following list may be used:-

Fusion: - Exceed (Sport, Race, Pro)

Castle Creations: - MambaMaxPro.

LRP:- A.I BrushlessReverse, 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.

Tekin:- R1(sensor less)

Other suitable ESC’s may be added from time to time
Anyone wishing to use an esc not on the above list should submit said esc to the committee for checking and inclusion into the rules
NOTE: - Please make your own checks on compatibility with regards to reverse function and 1s lipo use.
Brushless motors to have a minimum of 13.5 turns and a maximum UK rrp of £75.00
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. Note:- weight difference between 1s lipo and 4 cell Nimh is approx. 150g
Plastic whip aerials are allowed
Battery mountings may be changed from original.
Fitting of additional bearings to support the motor shaft are allowed.


SUPERDAVE

Any forward / reverse or forward only Brushless ESC with NO TURBO or BOOST or on the fly timing advance function may be used.
Cars with no reverse are used at drivers own risk and must have a fluorescent sticker on the roof
The Mardave G2BL system may be used.
NOTE: - Please make your own checks on compatibility with regards to reverse function and 1s lipo use.
Brushless motors other than the one in the Mardave G2BL system to be 10.5 turn minimum. Maximum UK rrp of £75.00
4 Cell nimh may be used until the end of 2011 or until the end of a series if it continues into 2012.
Plastic whip aerials are allowed.
Battery mountings may be changed from original.
Fitting of additional bearings to support the motor shaft are allowed.
Composite chassis allowed. Dimensions not to exceed those of the standard chassis and must be one piece, i.e. no “T” bar or link style. Wheelbase and track as V12 kit.

TYRES

The tYres 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.  
Minimum car ride height will be no lower than 3mm, 1mm at the spur gear.
Minimum car weight is 1kg (1000g). Brushless with 4 cells Nimh is 1150g. 
Commercially available comm. drops may be applied to the motor commutator PLEASE NOTE

Any car not conforming to the above rules will still be allowed to race but will NOT gain any championship points.
ANY manufactures new parts or bodyshells must be readily available to everyone at least 28 days prior to a national or GP race meeting for inclusion.

Hi Guys

We have now run a couple of meetings under the proposed rules with ( as far as I am aware) no problems so the committee will now go forward to the BRCA to take us to the next stage.

Brilliant

uop101 wrote: STOCK BRUSHLESS 13.5

Only forward / reverse Brushless ESC’s with NO TURBO or BOOST or on the fly timing advance function from the following list may be used:-

Fusion: - Exceed (Sport, Race, Pro)

Castle Creations: - MambaMaxPro.

LRP:- A.I BrushlessReverse, 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.

Tekin:- R1(sensor less)

Other suitable ESC’s may be added from time to time

I'd like to see the HobbyWing Xtreme Stock included. Can be checked if in 'Blinky' by flashing red LED
[You must be registered and logged in to see this link.]

ran mine last night in STOCK mode, no boost or turbo, worked a treat

this esc s need a 1s voltage booster be wired though

I've used one of these and the HobbyWing 1s speedo as well and, yes, they are both fine units - cheap(ish), reliable and plenty fast enough even with all boost and turbo turned off.

However, both have the option for boost/turbo to be used. I know that users can program these to be turned off but, apparently, some devious little sods have gone as far as wiring blinking LED into the speedo so that they blink no matter what settings are chosen. Far fetched I know, but if temptation for turbo is there then there will always be someone who wants to bugger it up for everyone else...

Latest I have heard is that ANY speedo with the option for turbo/boost will be banned. Personally I don't like using a voltage booster and this leaves few options available for a speedo that can cope with 1s LiPo. I'm holding on for patday then ordering a Novak GTB2...

James

yea I had a team wave RBS and Tekin RS and could not use these so went for the GTB2

were's the complete list of proposed esc's for the class and a link to the latest published rules please

No Idea mate

Chequered Flag,

Send me a PM with your email and I'll forward on the latest list of rules that Chris sent me a week or so back. These are not 100% complete and are still 'proposed', but they are the most up-to-date ones around and are what the current National series is running to.

James

Post them on here for all to see

JimboJames1972 wrote:
Send me a PM with your email

Done

Ah, Gary.

I would if I could! Silly new work server seems to be blocking us all from cut and pasting online. In fact, this particular site was blocked for most of today... If I have the time I'll type them in tomorrow. Anyway, you got the ones I'm thinking of - they should have been emailed to you a couple of weeks back too. I think that anyone booked in to any of the current Mardave - 1/12 winter series got Version 3 from Chris, but they were incomplete. We then got version 4 a little while later??

Chequered Flag - email sent.

James

Site Been ok all day must be blocked your side site runing brill Jimbojames