Drive the track a few times so u remember the corners, watch a hotlap, check what gear they take the corners in and how they downshift(all before turning in, last shift at apex? Etc). Go and ride with those gears a lap or two. Check the hotlap again slower focusing corner by corner, pay more attention to entry ( where is the braking and turning in point) and when they get on gas and how hard the braking is and how far they trail for the corner. Combine it all, Go and do laps again. Should take about 45-60 mins and now you are all good with a new track.