Bracket Racing Classes

We have a variety of bracket racing classes to enter, whether you’re new to competition or running a souped up rail dragster. All drag racing ETs are reflected as eighth mile times.

Please choose your class(es) before you arrive at the gate. This helps us get through the line quickly and efficiently. If you don’t know what class to run, jump into the non-competition Test & Tune group for the day to make practice passes down the track. Then you’ll know how your car performs and you can use your time slips to pick which class(es) you should enter on the next race day. It’s popular to test on Saturday and compete on Sunday!

If you enter multiple classes, be prepared to potentially hotlap your vehicle. We have a lot of vehicles to run and a strict facility curfew, so we can’t always allow for significant cooldown times between classes if you happen to enter multiple classes that run in a row. You must be in your lane when your class is called in order to participate in a competition class or you will be disqualified. Thank you for understanding.

Note: Due to safety and insurance restrictions, electric vehicles (EVs) are prohibited from drag racing.

Payouts

Where do I pick up my prize money? Payouts are available at the tower in the Winners Circle in-person when racing concludes. Any payouts not picked up by Sunday evening when the event closes will be considered abandoned. Prize money will not be mailed.

Trophy

This is a great class for beginners who want to try entering their first competition with a stock or slightly modified vehicle. This class has no payout but rewards a trophy to the winner at the end of the day.

Trophy runs on a .500 Sportsman tree and has no crosstalk.

• 8.60 seconds and slower.
• Electronics: Prohibited.
• Open Headers : Permitted.
• Slicks: Permitted.
• Street Tires: Permitted (Will be “coned”, please see track rules).
• Line Lock: Four-wheel line lock prohibited. Two-wheel line lock permitted.
• Automated Shifter: Permitted, must be driver-operated.
• Throttle Control: Throttle must be manually operated by the drivers.
  • Electronics, pneumatics, hydraulics, or any other device may in no way affect the throttle operation.
  • A dead stop under the carburetor or gas pedal is permitted.
  • Throttle timers, counters prohibited.
• Ignition: Stutter boxes (down track rev limiter) prohibited. Single state rev limiters permitted.
• Switches and Buttons: All switches and/or buttons must be standard mechanical connection type.

Pro ET

Pro ET runs on a .500 Sportsman tree and has no crosstalk.

• 5.00 seconds and slower.
• Electronics: Prohibited.
• Data Recorders: Prohibited.
• Delay Boxes: Prohibited.
• Transbrake: Prohibited unless using an NHRA accepted transbrake.
• Line Lock: Four-wheel line lock prohibited. Two-wheel line lock permitted.
• Automated Shifter: Permitted, must be driver-operated.
• Throttle Control: Throttle must be manually operated by the drivers.
  • Electronics, pneumatics, hydraulics, or any other device may in no way affect the throttle operation.
  • A dead stop under the carburetor or gas pedal is permitted.
  • Throttle timers, counters prohibited.
• Ignition: Stutter boxes (down track rev limiter) prohibited. Starting line and or ‘high side’ rev limiters permitted.
• Switches and Buttons: All switches and/or buttons must be standard mechanical connection type.

Sportsman

Sportsman runs on a .500 Sportsman tree and has no crosstalk.

• 7.36 seconds and slower
• Open Headers: Permitted.
• Slicks: Permitted.
• Data Recorders: Prohibited.
• Delay Boxes: Prohibited.
• Transbrake: Prohibited.
• Line Lock: Four-wheel line lock prohibited.  Two-wheel line lock permitted on non-drive wheels only.
• Automated Shifter: Prohibited unless OEM equipped.
• Throttle Control: Throttle must be manually operated by the drivers.
  • Electronics, pneumatics, hydraulics, or any other device may in no way affect the throttle operation.
  • A dead stop under the carburetor or gas pedal is permitted.
  • Throttle timers, counters prohibited.
• Ignition: Stutter boxes (down track rev limiter) prohibited. Single state rev limiters permitted.
• Switches and Buttons: All switches and/or buttons must be standard mechanical connection type

Super Pro

Super Pro runs on a .500 Sportsman tree and has crosstalk enabled. If you want crosstalk disabled in your lane, you must have a large capital N in a circle next to your dial-in. Reruns will not be granted if your circled N is not readily visible to the tower.

• 4.50 to 7.99 seconds.
• Electronics: Allowed
• Data Recorders: Permitted.
• Delay Boxes: Permitted.
• Transbrake: Permitted.
• Line Lock: Four-wheel line lock permitted.
• Automated Shifter: Permitted.
• Throttle Control: Permitted.
• Throttle Stop: Permitted
• Ignition: Stutter boxes (down track rev limiter) prohibited. Starting line and or ‘high side’ rev limiters permitted.
• Switches and Buttons: All switches and/or buttons must be standard mechanical connection type.

Motorcycle and Sled

This class is open to motorcycles of all types as well as snowmobiles (aka sleds). Bikes and sleds are permitted to enter the other bracket classes as well, so double-enter if you can!

Motorcycle/Sled runs on a .500 Sportsman tree and has crosstalk enabled. If you want crosstalk disabled in your lane, you must have a large capital N in a circle next to your dial-in. Reruns will not be granted if your circled N is not readily visible to the tower. Don’t put it behind your leg where we can’t see!

• 4.50 seconds and slower.
• Electronics: Allowed. See Super Pro rules.
• Chain guard: Required.
• Switches and Buttons: All switches and/or buttons must be standard mechanical connection type.

Driver Rules

Interstate Racway is a Division 5 NHRA track and follows all NHRA safety requirements. Below is a general overview, but please read the current rulebook as well.

1. ALL racers must have protective clothing, including a leather jacket, leather boots/shoes that rise above the ankle, leather gloves and full face helmet with valid SNELL rating.

2. Motorcycles 6.98 and quicker must be equipped with a FUNCTIONAL ignition kill switch that is attached to the rider by a lanyard(a tether). Most stock motorcycles are equipped with a handlebar mounted thumb switch that can have a lanyard easily attached for this purpose.

3. ALL motorcycles must have a chainguard.

4. ALL racers on motorcycles that exceed 120mph MUST be equipped with leather pants. Jacket and pants must attach with a 360 degree METAL zipper.

5. Valid NHRA competition license mandatory for riders of any motorcycle running 6.39 or quicker.

Junior Dragster

There are several classes for children to race in purpose-built dragsters. All Junior Dragster classes run to the 1/8th mile. Any Junior Dragster that runs a 7.50 second or quicker ET or goes faster than 85 mph at any time will be immediately disqualified from the event. For license application information and the full Junior Dragster rulebook, see the NHRA website.

JR Street

We follow the NHRA rules for JR Street, which can be found here: https://www.nhra.com/jr-street

Any teens participating in JR Street must have a licensed adult with them when operating the vehicle. To participate in the class, teen drivers must have an NHRA license per the JR Street category rules (see link above). If you’re doing licensing passes, please let us know when you go through tech inspection and you’ll run in the Test & Tune group to make your passes. If the schedule is running short, we will do our best to get your licensing passes through by the end of the day so please be prepared to hotlap if necessary.

Gambler

Depending on the racing schedule and car count, we may call for a bonus race class called the Gambler. Gambler participation is open to any vehicles that have been eliminated from Bracket competition. This means that competitors from across classes can meet on the starting line and take a gamble against each other!

• Participants can receive a bye for one driver in the last two elimination rounds before Finals if there’s an odd-number of entries.
• Bye is decided by random number drawing and you cannot be awarded a bye twice.

Test and Tune

You’re welcome to bring almost any truck or car to run test passes at our track in a non-competition group called Test and Tune. A cage is required for anything faster than 6.33 seconds and you must pass a standard safety tech inspection (no leaks, no expired helmet, etc).

Test and Tune is run on a .500 Sportsman tree and has no crosstalk. If you’d like to run on a .400 Pro tree, let us know when you pull up to the burnout box and we can set the system in your lane.

You cannot enter Test & Tune and a competition class on the same day. However, you can join the Test & Tune group for free when you have been eliminated from all of your competition classes starting after the second round of eliminations when the Test & Tune class opens up. Listen for the announcement about the class opening up, then you can come to the Test & Tune lanes when the class is called.

If you are doing NHRA licensing passes, you will run with the Test & Tune group and get priority for completing your runs in the event of a scheduling issue cutting close to our facility curfew.