Jamie, try this set up:

Gearing: 22/80 with 2.6 gearbox
motor can timing: 20 degrees
Throttle pwn freq: 2500
throttle punch: 100
throttle curve: linear

motor power:
start rpm: 4000
finish rpm: 15000
Max adv timing: 50

No top speed timing(turbo)

Set all other settings to your liking.
with this set-up I set a single fastest lap and track record on a track that is close the this size.
Reuben Diaz