Price Motor Sports
Price Motor Sports
Price Motor Sports
drag strip layout



Pre-Stage beam - A light beam-to-photocell connection in each lane that triggers the small yellow pre-stage lights atop the Christmas Tree. The pre-stage lights signal to drivers that they are close to staging, approximately seven inches behind the starting line.

Stage beam - (starting line). This light beam-to photocell connection controls the starting and timing of each race. It triggers an independent lane timer for elapsed time and will trigger the red foul light if a driver leaves too soon. A race cannot be started until both drivers are fully staged.

Guard beam - A light beam-to-photocell connection located 16 inches past the stage beam that is used to prevent a competitor from gaining an unfair starting line advantage by blocking the stage beam with a low-installed object such as an oil pan or header collector pipe. If the guard beam is activated while the stage beam is still blocked, the red foul light is triggered on the Christmas tree and the offender is automatically disqualified.

Christmas Tree - The noticeable electronic starting device between the lanes on the starting line. It displays a calibrated-light countdown for each driver.

Interval timers - Interval timers are part of a secondary timing system that records elapsed times, primarily for the racers benefit, at 60, 330, 660, and 1000 feet. The eighth-mile speed light, located 66 feet before the 660-foot mark, is used to start the eighth-mile speed clocks in each lane, those timers record speed for the first half of the run.

Speed-trap and elapsed-time beams - The first of these light beam-to-photocell connections is located 66 feet before the finish line and is used to start the speed clocks in each lane. The second beam, located at the finish line, shuts off both the elapsed-time and speed clocks in each lane and triggers the win-indicator light. The 66-foot speed trap is where speed is recorded.


Below is a typical "Time card" received from a drag strip
LEFTRIGHTThis is the lane You are in When Racing down The Strip.
Car #2524The race car Number
ClassS/JDJ/JDThe class it is Racing under
Idx/Rec13.4018.90The difference Between these two Index's is the Handicap
Ov/Un0.1210.242This time tells you how good your Reactions were at the strat of The race
60 '1.9432.621This tells you what time it took you to travel the first 60' of the track
330 '7.38411.583This tells you what time it took you to travel the run
1/89.14714.420Your time to 1/8 mile
MPH66.4243.87Your speed to 1/8 mile
1000'11.37916.251This tells you what time it took you to travel the first 1000' of the run
1/413.14618.970This is the time you cross the finish line at
MPH93.4661.78This tells you the Mile per hour that you crossed the finish line at
Right 1stWIN>>27This tells you Which lane won the race and by now many seconds