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-   I Made This ! (http://www.oople.com/forums/forumdisplay.php?f=25)
-   -   MY project, just got sweet (http://www.oople.com/forums/showthread.php?t=1280)

BenG 18-10-2006 06:16 AM
Quote:
Originally Posted by Rob Fitzgerald (Post 13591)
OK

I will tell you the offroad car that I want ...

It's a competitive 4wd car that transforms itself into a competitive 2wd in no more than 15 minutes - oh - and it has to take a stick pack.

I don't care if it's a little bit heavier than some cars as long as it doesn't break if I stare at it hard.

I don't want any body clips on it anywhere - hold the body on with velcro - thumbscrews for the cells and something like a rallycross fitting for the wing.

last thing - I don't want to pay more than £250

You can keep your graphite style plastic and I will settle for nice glassfibre rather than carbon if I have to as well.

Where do I sign ?
Sign, sign for what? You want to test it:confused::D

I like your body clip less idea, that can be done. The £250 can also be done, and as to converting it to a 4wd in 15 mins its very possible down to my first design using the same bearings as a TC3/ BJ4. I will make it as a 2wd first though. And if needs be, will use it as a base for my 4wd car

Chrislong 18-10-2006 09:36 AM
Ok, inboard shocks, narrow chassis, and a giro inside so when it turns over it can drive equally as well and the servo is automatically reversed. :)

To build the perfect car, you must evaluate what does and doesn't work, but the trouble with that is people opinion of what works can be very different.

My suggestion is make it strong, and make it have few consumables. Such as diff outdrives which run on roller dogbones (like some of the Losi team used).

You should really test & form your own ideas, as listening to us crazy bunch you could end up with something completely bizarre.

Southwell 18-10-2006 09:46 AM
Quote:
Originally Posted by Chrislong (Post 13629)
You should really test & form your own ideas, as listening to us crazy bunch you could end up with something completely bizarre.
Like an X6? :batman:
j/k :D

jim76 18-10-2006 10:19 AM
how about something completely different. Front wheel drive!! (i'm assuming that would be BRCA legal for 2wd?)

Nick Goodall 18-10-2006 10:34 AM
Physics still apply so think about any FWD cars with the equivalent of i guess 1500bhp......

Not really going to corner very well :D Any real car with more then about 230bhp in FWD form is fairly pants when it comes to traction.

It has to be RWD, the only two things you can really work on are layout / weight distribution and suspension geometry.

Have a look at the Predator with inboard suspension as this is a lot more advanced then many people realise and should help cut weight etc right down as you can run small shocks, plus Aerodynamics can be greatly improved :cool:

xx4-nutter 18-10-2006 11:04 AM
:D one of these would be cool lol :D

http://www.zippyvideos.com/6448261755852606/rebound/

hehe. sumthing durango style with a motor thats stood upwards !! go different!! :D

cheers garry

BenG 18-10-2006 11:17 AM
LOL, I arent really trying to achieve nikko spec:D

Howabout front wheel drive, rear wheel steering

xx4-nutter 18-10-2006 11:27 AM
ha ha ha ha !!

u should try :D, how about the motor turned end bell up :p. . no one else has done it.

but what could be the upsides to it ?

or down sides

Nick Goodall 18-10-2006 11:27 AM
Quote:
Originally Posted by www.tyrc.co.uk (Post 13634)
LOL, I arent really trying to achieve nikko spec:D

Howabout front wheel drive, rear wheel steering
Get your B4, Wire your motor up the wrong way, reverse your servo and see how quickly you can get round the track and report back to us :D

Nick Goodall 18-10-2006 11:38 AM
There's a good slogan that BMW use - "The best way to push something Forward, is from behind. That's why all our Cars are Rear wheel drive".

Think that applies pretty well to R/C, FWD is definitely not the way forward.

Lee 18-10-2006 11:53 AM
How about the motor up front ie losi xx4 with a shaft running back to the rear tc3 style gear box with saddle backs at the rear either side of the shaft?

not saying it will work but could be interesting to test:rolleyes:

Southwell 18-10-2006 01:10 PM
Someones tried that, didn't look too bad mind, was a bj4 layout.

jimmy 18-10-2006 01:27 PM
heres a front wheeler

http://www.geocities.jp/feriocruise/poprod/poprod2.html

jimmy 18-10-2006 01:31 PM
here is my national contender:p

http://www.oople.com/rc/projects/selfbuild11.jpg

Nick Goodall 18-10-2006 02:00 PM
Haha Jimmy i'm loving that - would be great fun to get some decent electrics & tyres just to see what it went like :D Not sure it'd be much good on the bumpy stuff...

BenG 18-10-2006 02:52 PM
point taken, it doesnt really work, if you think about how skinny the front tyres are, theere would be little grip, alot of understeer.

Nick Goodall 18-10-2006 03:52 PM
Well you wouldn't use narrow tyres on the axle putting the power down anyway so you'd have to have rears on the front, and fronts on the rear.... but basically no it just wouldn't be a good plan at all....

This is my concern dude, if you've not worked out if it's going to be Front or Rear wheel drive you're going to need to start doing some research into what does/doesn't work on real cars as i said earlier Physics are still very much going to apply..... although these weigh a lot less etc principly if it works on a real car it's got a much better chance of working on a toy one :D

Nick Goodall 18-10-2006 03:58 PM
Have a look into Dune Buggy's etc, maybe get some inspiration from that sort of racing?

http://www.git.com.au/~theedge/torc_buggy_racing.htm

Look for some of the hill climbing cars too as they have some crazy ideas when it comes to suspension etc.

BenG 18-10-2006 04:31 PM
Quote:
Originally Posted by Nick Goodall (Post 13648)
Well you wouldn't use narrow tyres on the axle putting the power down anyway so you'd have to have rears on the front, and fronts on the rear.... but basically no it just wouldn't be a good plan at all....

This is my concern dude, if you've not worked out if it's going to be Front or Rear wheel drive you're going to need to start doing some research into what does/doesn't work on real cars as i said earlier Physics are still very much going to apply..... although these weigh a lot less etc principly if it works on a real car it's got a much better chance of working on a toy one :D
ok matey, think I will go with rear wheel drive first. I dunno about the BRCA rules on putting rear wheels on the front

super__dan 19-10-2006 08:16 AM
Quote:
Originally Posted by www.tyrc.co.uk (Post 13650)
I dunno about the BRCA rules on putting rear wheels on the front
Can I reference the rule book again at this point! :p


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