I am totally a novice when it comes to setting up a race car for a specific track. At Donington I can run 1:11.8 which isn't terrible but others are running 1:09. I have tried changing the gearing which didn't help I tried lowering the tire pressure changed the opening to my radiator to 10%, changed the steering to 12.9, lowered the camber. But still can't get any faster than a 1:11. Nothing I am moving is helping. Help please?