Any car competing at Cotton Bowl Speedway is required to have a functioning Westhold compatible transponder on their car. If you do not have one, or your transponder not functioning - you will NOT be scored.
If you have not purchased a transponder, rentals are available at the track at the registration window for $10 per night.
In order for your transponder to function correctly it must be properly mounted, free from obstructions, facing correctly, battery charged or if hard-wired power supplied correctly, and in the proper mounting location.
SILVER LABEL MUST BE POINTED AT GROUND FOR IT TO READ CORRECTLY. (This applies to both hardwired and rechargeable). THERE SHOULD BE NO METAL OR CARBON FIBER BETWEEN TRANSPONDER AND GROUND.