With large differences in camber, it's possible that the car may have a tendency to wander to one side, requiring you to keep it steered to the oposite side to keep it going straight. This steering deflection may slow you down a bit. However, the increased grip in corners and more even tire heating and wear are well worth it.
It depends what you change. But top speed is totally irrelevent anyway, it's how you exit the corners that is important, and an assymmetric setup might make you quicker out of corner (and over a lap) but slower at the end of a straight.
In a word it: Depends.
Bah Forbin. Get a life. All you ever do is post, and now you've beaten me!!! :hides:
asymetric settings gives advantage turning corners faster,so there is no point of using symetric settings if there is no difference of top speeds.am i right?
Asymetric is good if you have a track that more corners in one direction, versus another.
Take Fern Bay Club for example. That is dominated by right hand corners. A fast setup for that track would be asymetric because you could set the outside-left tires with lots of camber, while the inside-right tires need less camber to help with tire contact on the inside of the car. If you had a symmetric setup, the inside tires would be of no use, since it only uses a small portion/edge of the inside tire for grip.
But use symmetric setups for tracks that you notice need somewhat equal camber on all sides. So it can corner both left and right as quick as possible. You don't want your car to turn good in one direction versus the other, it won't help (unless the track has more left/right corners than anything else)
Here is a visual I made, simple to understand, and best way to describe it.
Basically it is a car taking a hard right turn, and showing the car's body roll with the camber in play. The inside tire usually lifts up a bit while in a turn, so there is less of a contact patch on the inside. You will see why in a symmetric setup that the inside tire would not work as well as an asymmetric setup. This is of course if your track is mostly right turns.
But to keep things simple, most people use symmetric for tracks that have a combination of right and left.
For open wheelers it is a bit trickier, because they don't have much body roll. So most camber settings on open wheelers are somewhat close to each other, and only different by a tiny bit.
assymetric setups have the potential to be faster - more adjustability.
it's often worth running high pressure on the non dominant side, for extra acceleration.
The only reason I use asymetric sets (which is all the time btw) is to tune the oversteer/understeer characteristics of the car. i.e I want the car to behave slightly differently in left and right corners.
I'll explain - BLGP is a perfect example. Almost all right handers but one very important left. The last turn requires less oversteer because as you head slightly uphill mid corner this generates unwanted oversteer. Reduce the camber on the front right compared with front left and the left handers will understeer more than right handers (also having the effect of increasing front grip for right handers). This assumes you have the camber of the left front set about right for maximum grip.
I only use the assymetric. Its best , if you want to adjust the camber and even out the tyre temperature. Thats one of the first things I do when making a setup.
And what about asymmetric tire pressure? Is it worth it? Does it unstabbilize the car?
In theory, if you have asymmetric camber, one side is higher than the other. To be more precise, the side with more camber is lower than the other. Is it any good to put more pressure in it to avoid this?
Another question: What about the drivers weight? Is there any way to level this?
I just use pressure to make the tyre the right temperature, usually the outside a couple psi more. Drivers weight is where he sits, so depending on the track is where I put my driver. The weight is better balanced and tyre wear is eased with the driver on the inside.
assymetric tyre pressure can gain you signifigant advantage. higher pressure tyres make the car faster - combine that knowledge with a track that turns one direction most of the time and see what you come up with
So long as you balance front and back tyres on each side appropriately (for the amount of turn you want) you don't usually run into any issues.