Drag Racing
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How it Works
Drag Racing Basics
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Getting Started
A Day at the Races: What to Expect
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Safety Quick Reference
Know how fast you can go.
Drag Racing 101
Drag Racing 101
The Drag Strip Explained
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The burnout box is where racers prepare their tires before staging.
Purpose:
Heat slick tires for improved traction.
Clean debris from the tires.
Prepare for a consistent launch.
Street tires typically require only a short cleanup burnout and drive around the water.
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The Christmas Tree controls the starting sequence for every race.
The Tree is activated by the Starter once both lanes have pre-staged.
The Christmas Tree Explained
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The first 60 feet are often the most important part of a run.
This timer measures:
Launch consistency
Tire traction
Initial acceleration
Small improvements here often produce the biggest gains in overall elapsed time.
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The 330-foot timer measures how efficiently your vehicle accelerates through the first third of the track.
Racers frequently use this data to fine-tune:
Suspension
Tire pressure
Launch RPM
Shift timing
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At the eighth-mile mark, the timing system records:
1/8-mile Elapsed Time (ET)
1/8-mile Speed (MPH)
Many Thunder Valley No-Prep & Junior classes compete over the 1/8 mile, making this their official finish line.
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The 1000-foot timer provides an additional performance checkpoint for quarter-mile racers.
While it doesn't determine the winner, it helps evaluate acceleration during the second half of the run.
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1320 Feet
The finish line is where your run officially ends.
The timing system records:
Quarter-mile Elapsed Time (ET)
Quarter-mile Speed (MPH)
These numbers appear on your official time slip.
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After crossing the finish line:
Lift off the throttle smoothly.
Brake in a controlled manner.
Stay aware of your opponent - left lane has the right-of-way.
Exit the track safely using the first available return road unless directed otherwise.
Always follow track official instructions and never stop on the racing surface unless instructed to do so.
The Christmas Tree Explained
Understanding the Starting Sequence
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Roll forward - slowly - until the Pre-Stage bulbs illuminate. This lets the starter know you're approaching the starting line.
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Continue rolling forward - slowly - until the Stage bulbs illuminate.
Once both vehicles are staged, wait for the starting sequence.
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Deep staging occurs when a driver rolls farther forward after staging, turning off the Pre-Stage bulbs while leaving the Stage bulbs on. Deep staging is prohibited in many classes, including Thunder Valley Summit ET Series competition.
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The green light signals the start of the race. Launch your vehicle and begin your run.
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A red light indicates a driver left the starting line too early. The other lane wins unless another disqualifying condition occurs.
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A timeout occurs when a driver fails to stage within the allotted time. The red light will illuminate. A timeout results in an automatic round loss.
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Sportsman Tree (Full Tree)
Used for Sportsman-style competition. The three amber bulbs illuminate one at a time before the green light.
Pro Tree
Used in most Pro and No-Prep classes. All three amber bulbs illuminate at the same time before the green light.
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AutoStart
Thunder Valley uses the NHRA AutoStart system for most classes. Once one driver is fully staged, the other driver has 10 seconds to fully stage. Failure to do so results in a timeout.
Please note:
Reaction Time (RT) begins when the green light illuminates.
Elapsed Time (ET) begins when your front tires leave the staging beam—not when the light turns green.
Remember: A slower reaction time does not make your elapsed time slower. Reaction Time and Elapsed Time are measured independently and tell two different parts of the story.
A Day at the Races: What to Expect
Racer Reg & Tech Inspection
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When you arrive at Thunder Valley Dragstrip, stop at the ticket booth to:
Purchase your Tech Card
Complete the required Release & Waiver of Liability
Once you've completed both, you're ready to head into the pit area.
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After entering the facility:
Park in the pit area
Unload and prepare your vehicle
Please use only the space you need
Take a few minutes to review any racer information provided at the gate
When you're ready, head toward the designated area for Tech Inspection.
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Tech Inspection takes place in the designated Tech Area.
Before you reach the Tech Inspector, have the following ready:
Completed Tech Card (filled out clearly and signed in ink)
Valid Driver's License
Helmet
Any required NHRA safety equipment for your vehicle's elapsed time (ET)
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Report to the staging lanes only after your class has been called over the PA system.
Proceed to your assigned lane and be ready when it's your turn.
Before pulling forward, make sure:
Seat belt or harness is secured
Helmet is fastened
Gloves are on (if required)
Vehicle is running
All required safety equipment is properly secured
Being fully prepared helps keep race day safe and on schedule.
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The Restricted Area begins at the front of the staging lanes and extends all the way to the finish line.
Only the following individuals are permitted beyond this point:
Racers
Race crew
Track officials
Authorized media personnel
For everyone's safety, spectators are not permitted in the restricted area.
Race Procedures
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If your vehicle is equipped with slick tires, the Racemaster will direct you into the water box.
Before beginning your burnout:
Wait for the Racemaster's signal.
Perform all burnouts in a forward gear only.
If you're unsure where to stop, ask a track official for assistance.
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When signaled by the starter, slowly move forward until the Pre-Stage bulbs (the top two small bulbs on the Christmas Tree) illuminate.
Once pre-staged:
Stop and wait for your opponent to pre-stage.
Do not continue forward until you're ready to stage.
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When both drivers are ready, slowly move forward until the Stage bulbs illuminate.
Once both vehicles are fully staged:
The starting sequence will begin automatically.
Stay focused and be prepared for the tree to activate.
Do not back out after staging unless instructed by a track official.
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If you're planning to deep stage:
Roll forward until the Pre-Stage bulbs turn off and only the Stage bulbs remain illuminated.
Enter the beams in one smooth, continuous motion.
You must be fully staged before your opponent stages.
The starter will not delay the race while waiting for a driver to deep stage.
*Not all classes allow Deep Staging
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Stay in your lane and continue racing through the finish line.
If you experience a mechanical problem / abnormal noise or vibration / etc:
Safely move toward the wall on your side of the track and stop.
Stay in your vehicle unless there is an immediate safety threat (Fire/chemicals).
Follow directions from track officials.
If you receive a red light during eliminations, continue through the finish line as normal.
Avoid slowing down before the finish line, as this can create an unsafe situation.
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After crossing the finish line:
Slow down gradually.
Exit at the first safe left-hand turnoff.
Yield to the vehicle in the left lane.
For your safety:
Keep your helmet on until you've exited the racing surface.
Leave your windows up until safely off the track.
Follow all instructions from track officials.
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The race may be over, but safety remains the priority.
The speed limit on the return road is 15 MPH.
Drive carefully back to the pits.
Stop at the Time Slip Booth to collect your time slip.
If your time slip is missing or appears incorrect, please contact the Race Director or Timing Tower.
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Get the free TVRP Slips app for timeslips right on your phone.
Safety specs
At-a-glance
OFFICIAL NHRA RULEBOOK
Click or tap the rulebook to view or download a digital copy.
