Very VERY interesting thread!
I'd like to know why you set Springs,Dampers, Compres and Bars like you do.
Because (from what I know) if you set Bars to the highest value, the car will be more stabe. (I dont know if a higher value will affect top speed).
Furthermore, I don't understand why you set a very low Front Spring rate and a higher value for the back. I'd do the COMPLETE OPPOSITE.... Setting example: 20-7,5
Finally, I set 0 ballast in possition 50 (the back of the car)... At least for 1/4 mile Indy it worked.
Right now I'm reaching 450km/h without drafting. (equivalent to 280 miles per hour)