View Full Version : How can touring cars handle well when...
munim
08-20-2005, 11:46 PM
their left/right balance is all messed up? A lot of cars have all 6 cells on one side of the car with relatively light-weight electronics on the other. Do racers have different springs/oil weights on one side of the car? That must negate handling prowess a bit, someone please explain, lol.
evaderstman
08-20-2005, 11:58 PM
They are very well balanced as every thing but the battery is on the other side.
highroller
08-21-2005, 03:51 AM
Chassis still ends up being balanced. Even though battery may go on left side, motor and the rest of electronics weight is towards the right side. Sometimes very small changes are done to the chassis to get it dialed to a track layout and it may only be selecting the right tire compound or small adjustments to camber or spring rates using a softer or harder spring in front or rear. For TC onroad use the front uses the same rate spring, oil, tire compound while the rear be setup with a slightly harder tire compound, or slightly stiffer spring but same shock oil.
relayer
08-21-2005, 05:28 AM
Actually, the weight balance on most belt drive touring cars is almost perfect.
It's not just about the weight on each side, you have to consider how far away from the central axis the weight is.
If you have the heavy side (cells) and the light side (motor) the same distance away from the centreline of the car then it would be greatly unbalanced.
What the manufacturers do to get around this is to move the "heavy" side closer to the centreline (reducing the effective leverage from the heavy weight), and move the "light" side further away from the centreline (increasing the effective leverage from the light side) - this change basically evens out the weight balance.
Of course it's not possible on shaft drives because you can't move the motor further away without using an absolutely huge spur gear ;)
munim
08-21-2005, 09:36 AM
snip
That's what I was thinking except, like you said, they couldn't move the motor too far from the central axis without a huge spur.
As for belts, I remember when it was all the rage to have 3 cells on both sides and the motor dead center. I think most belted cars are like that, except the Schumacher cars of yesteryear.
On the XRay T1 FK 05 the battery side is actually lighter than the non-battery side by a few grams. The inside edge of the batteries are pretty much along the center line of the chassis and all the electronics were on the other side of the chassis as close to the center line as possible.
I wish someone would make a saddle pack chassis for the tc4. A 4-2 split with the server on the other side would be the best layout for 50/50.
4 cells + reciever + server + transponder on left side
2 cells + motor + esc on right side
AudiTT-Quattro
08-24-2005, 01:36 PM
That's what chassis weights are for. If you're doing any competitive racing, chances are your car comes in underweight which gives you ample opportunity to balance the car with weights.
If you're not into racing, you probably won't care/notice about the weight and balance.
you having a joke? The tc4 is weighs more than an adult elephant.
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