If at any point you go off the track, just exit and restart. You want a good clean run all the way through for the best possible time you can do. Thrill Seeker and Pedal to the Medal from the pilot spec may also be of help.
I know the record was like, 102? But maybe we should break it down into divisions: shuttle, flyer, runabout, or fighter... just like the Reno Air Races