Christmas Tree -The electronic starting device positioned between the lanes just ahead of the starting line.
Pre- Stage -
When your tires break this light beam, it's a signal that you are very close to the starting line.
Stage -Your front tires have reached the starting line. NOTE: The race typically will not be started until both drivers are staged. However, there is only a short grace period for staging. If you fail to stage in time, you will be disqualified (red light).
Countdown Lights -Once the starter triggers the tree, these flash down at .500-second intervals with the green coming on .500 seconds after the last yellow.
60' timers-These give time and speed are various intervals on the track. Your 60' time is generally an indication of how well your car "hooks" - how much traction it has.
Bracket - A specific class defined by elapsed time or required equipment.
Breakout - Running faster than your dial-in (you "dial" a 10.00, but run a 9.99)
Burnout - Spinning the tires to clean them and to heat the rubber for better traction. Drag slicks work best at an elevated temperature. NOTE: Street tires DO NOT require a burnout. Typically, they will actually perform worse if heated. However, you are free to burn 'em down if you like. If you do not wish to make a burnout, you may drive around the water box.
ET - Elapsed time. The time from when the front tires leave the starting line beam until the front tires break the finish line beam. Reported to the thousandth of a second.
Heads Up - Two cars racing with no handicap start. The classic drag race.
Hole Shot - The better reaction time. The "hole" is the starting line.
Pro Tree - The three yellow lights flash on all at the same time and the green lights .400 seconds after.
Sportsman Tree - The tree horist is bitching about me adding.
Reaction Time - The time between the driver's reaction to the last yellow of the tree and the time the front tires leave the staging beam. It can also be thought of as how close you came to leaving on the green light. It is printed on the ET slip.
Red Light or Foul Start - The red light is triggered by leaving before the green. It can also signal a foul or disqualification, like failing to stage in the required time or breaking something.
Speed beam - Your speed at the finish is calculated by measuring the time between when you break the speed beam and the finish line beam. The speed trap is 66' wide.
Staging Lanes - Lanes marked off behind the burnout box area where the competitors are paired up for the race.
Water box/burnout box - A small area kept wet by track personnel to help
cars with slicks perform their burnout