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Old 11-22-2006, 12:07 AM   #1
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Default 2wd on road electric classes

High all.

I am new to RC racing though not new to racing as a whole.
I am interested in builing my own chassis and wanted to build a
2wd electric (1/10).

Is there any clubs that exist in the brisbane/Gold Coast area that
have a 2wd class. If there isn't I'll probably go with my intial design
anyway and see if i cant find an advantage in lower wieght agiants
the 4wds.

more questions though. as i am building from scratch exept the body,
I will be selecting my body based on the following
wieght (who makes/what is the lightest body)
size (particularly frontal area) (who makes/what is the smallest body)

Are there minimum weight rules in modified classes
are there tyre restrictions in modified classes.

Thanks
Josh
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Old 11-22-2006, 12:51 AM   #2
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Hey Josh,

goto.... http://www.orrcaqld.org.au/

You will find pretty much all the rules you need to adhere to when building and designing your car. It's a lot of work building your own car but very rewarding when it all works

Good luck..most clubs in SEQ use these rules as a guidline.
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Old 11-22-2006, 01:14 AM   #3
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Why 4wd classes only. I find that rather odd. A 4wd should be much faster and easier to drive yet the rules state it must be a 4wd and independent suspension front and rear. I wanted to build a rear wheel drive car with a belt drive to live rear axle.b
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Old 11-22-2006, 01:25 AM   #4
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If you want to build a RWD only to a live rear axle you will be looking at a 12th scale pan car. All touring car racing is 4wd.
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Old 11-22-2006, 01:41 AM   #5
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Joe,

IFMAR ISTC (Touring Car) regulations state this..

6.2
CHASSIS AND DRIVE TRAIN
6.2.1
Two (2) wheel drive to front or rear wheels or four (4) wheel drive is allowed.
6.2.2
Chassis must have independent suspension to all four wheels. Each driven wheel
must have a flexible joint (e.g. dogbone/s or universal joint/ s) in its driveshaft. Drive
train and suspension design is free from restriction. ‘Flat pan’ (1/l2th and 1/l0th
Track style) chassis are not allowed.




So, a 2WD car IS legal. However you wont find any club running a specific class for them because there simply aren't any available. However there's no reason why you can't build one and run it against the 4WD's.A 2WD car also gets a 100 gm weight advantage too.

In practice you'll probably get killed out on the track unfortunately, but it'd be a lot of fun.
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Old 11-22-2006, 01:46 AM   #6
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That's fine Tony except that joe is wanting to race in Queensland and we don't race to IFMAR Rules here at club level. Most clubs in Qld conduct their electric racing to ORRCA Qld rules which state 4wd only for Touring cars
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Old 11-22-2006, 01:51 AM   #7
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I just wanted to see him build it Dave..

I've always been quite keen on the idea of a RWD Touring Car even though I know it wouldnt really cut it.

I know we tried the Yokomo FWD YRF2 for a while and it was damn good, but couldnt quite keep up with 4WD's. The only real advantage of a 2WD is less drivetrain friction and theoretically more go. But...nowadays, outright go is really no longer an issue anyway.
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Old 11-22-2006, 01:59 AM   #8
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Yeah i wanted the challenge of building a RWD car both to see how it would run against the 4wd and because first time out it would be a lot easier.

Perhaps I can contact the local club and see what they reckon

what do they mean by 'Flat pan'
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Old 11-22-2006, 02:03 AM   #9
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Josh...to give you an idea on what you are looking at goto... http://www.teamcrc.com/crc/modules.p...od&prodID=1108
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Old 11-22-2006, 02:10 AM   #10
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What make the 'flat pan' chassis illegal is it the lower plate of the chassis?
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Old 11-22-2006, 02:36 AM   #11
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'Flat Pan' is a generic term for most Pro 10 and 12th scale cars. And basically it means a car with a flat bottom chassis plate and also with solid rear axle.

It isnt specifically just the chassis plate itself.
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Old 11-22-2006, 02:43 AM   #12
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Yeah just build it... thats what this hobby is all about. I used to have a blast driving my Front Wheel Drive Tamiya chassis, got more than a few "you cant drive that" remarks... especially when I was out front

Its a dinosaur by todays standards though. I'm sure its tucked away here somewhere, might have to stir up the ol boys again.
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Old 11-22-2006, 03:09 AM   #13
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Thanks a lot guys
Tomorrow I will contact the local club and see what they say
I will probably build any way.

I plan to build it as follows

Unequal length, unparelell double wishbone on the front.
If they let me run a live rear axle then I will run a four link trailing arm.
if not then I will run the rear the same as the front.

will work to orrcaqld rules everywere else.
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