Ever wonder what makes some racers really fast? Watch this clip and I'll tell you what to look for in Forza's replay telemetry:

1) Notice how the green throttle bar on the right fills slowly after a turn, then stays full until the next braking zone. Once on throttle, stay on the throttle! This means your throttle point and technique are good.

2) While braking, the center graph draws south. When you start turning, it should draw smoothly along the circle until fully east or west. This means your braking point is good and you're using the full grip of the tires.

This is the M3 GTR time trial @ Alpine Ring w/ manual transmission, line assist OFF, traction control OFF, and ABS turned OFF.