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Originally Posted by rubix777
viewing the car from the left side, that added moment in the counterclock wise direction can be eliminated if you add another moment in the clockwise direction. This can be done if you add a wing that applies the same moment.
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the problem with that is....
While both the added moment from the extra mass, and the one from the downforce are variables. They have a different variable curve.
first of all, both moments are dependant on the lateral g's that incur from the speed/angle of the turn. (or F in your equation)
if you graph the positive y of each equation they will intersect therefor, only at the exact variable of F that would account for that intersection would the two moments equal eachother out.
other then that one moment will always be greater then the other.
so there goes that theory....
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as for the added mass in the back, you and i both know that wont work like you want it to, obviously the force in the front of the car is not equal to that in the rear. and unless you had a way to control the amount of added mass (impossible) it would be the same way. It would undercompensate untill that intersection on the graphs of the two positive y's, at which point (and only at that point) it would equal eachother out) and then it would overcompensate.
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essentially neither would work unless you had a computer controlled variable downforce wing that would adjust the downforce according to the value of the moment on the graph of the positive y from the added mass. (which to an extent would be possible, assumng you could moniter the downforce and the lateral force applied. using the extra 85lbs as a constant on a graph, and then having a multi-variable constantly changing equation to work off of and use the intersection point to reverse the equation and find how muh downforce need be applied)
orrrrr...
a variable center of gravity device (working on the same principle of a gyroscope, but on an arm rather then a pin) that would controll front to rear weight ratios according to what was needed, and still be able to keep said ratio at it's original position (the hard part)
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probably your best bet is to not worry about it, adjust your suspension to make up for the added mass in the front and get used to it.