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ddddd
03-18-2011, 04:03 AM
n
ddddd
03-18-2011, 04:03 AM
n
Garlic
03-18-2011, 07:46 AM
http://www.not2fast.com/chassis/sae1999-01-1336.pdf

Starting around page 18
BMEP
03-18-2011, 09:45 AM
There is a method by tilting the car laterally and longitudinally for determining cg height.

http://www.longacreracing.com/...les/art.asp?ARTID=22 (http://www.longacreracing.com/articles/art.asp?ARTID=22)
Ken_D
03-19-2011, 12:31 AM
Ideally a FWD car would have weight distribution of about 55/45. I figure 60/40 is within the realm of reasonableness too.

3000kg? That's a curb weight of almost 6700lb! A much better approximation would be roughly 3000lb (1350kg) or 3500lb (1570kg) for an average fwd passenger car.
ddddd
03-19-2011, 04:49 AM
n
Mortar Hedd
03-19-2011, 06:37 AM
Euan, might I ask what Uni you're from and which country it's in?
Stalin
04-06-2011, 08:53 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by euan2007:
Hey, im new to car design and have been reading over these forums which are really helpful.

I know that these posts are meant to be about FSAE cars but maybe someone here could help me.

Im trying to design a set of disc brakes for a road car (uni project). I thought it would be a good idea to work out the optimum brake balance and design based on the force each brake will need to generate.

For this, I need to know the centre of gravity of the car though. Does anybody have a typical value or rough estimate of where this lies?

Obviousley it is different for every car, this is just an arbitrary case where I can assume length, height, weight etc of a car. So iagining a 4m long car, 1.5m tall, a weight of 3000kg, and say it's a front engined car. Wheelbase could be 2.5m, anyone got a ballpark figure of where the CoG would be? Maybe 1.5m from the front, 0.5m high? (Not going to worry about the z direction as im assuming it's braking on a straight road).

Thanks </div></BLOCKQUOTE>