Blastcar® Rules

Official BSA Blastcar® Rules

These are the official Blastcar rules published by Boy Scouts of America (BSA). Local Troops, or event coordinators, may modify the rules so it is imperative to read your local rules and abide by them. If you have questions, ask your local race manager.

Rules for CO2 Blastcar Racing

BlastcarTM is intended for Boy Scouts ranks only —Tenderfoot to Eagle ranks. Additional racers may be added to the event at the discretion of the troop.

Car Construction

The car is to be constructed from the materials in the BSA® Blastcar™ Car Kit. The original axle screws in the kit must be used for the axles. Only weights, paint, and other purely decorative items may be added to the racer.

Car Dimensions

The total overall length must not exceed 10˝. The eyelets must have ¼˝ clearance to the race surface.

Car Weight

The total weight of the car without CO2 canister must not be less than five ounces as determined on the official weight scale. Any added weight must be solid in form (no liquid or moveable weight) and everything must be firmly attached to the racer.

Axle Placement

Axle placement may be anywhere on the car. By turning the wood block on its side, a drag-style racer or a wide-body racer can be created. Axle screws are screwed into the wood block, backed out, wheel is attached, then screwed in for final placement.

Car Lubrication

Only dry lubricants such as graphite may be used. No liquids may be present when the car is checked in. Scouts may lubricate cars between heats and in the designated areas.


Any type of spring, wheel bearings, bushings, or washers are not allowed. The car must be freewheeling.

Car Inspection

Each car must pass inspection by the race judge on the day of the race. See Car Inspection Guide at the end of this guide. The judge has the right to disqualify any car that does not meet the outlined criteria. Cars are checked in, given a race number, and entered on the heat schedule.

Each Scout is responsible for bringing his car to the "Car Show". Cars are returned to the table if they are moving onto another heat. If the car needs repair, the Scout will be allowed to repair the car in the official designated area. Any necessary repairs must be made in a timely manner.


The Boy Scout must be present to enter his car in the event. Each Scout is responsible for placing his car on the race line, inserting the CO2 canister, and then backing his car into the launcher.

Previous Year's Cars

A Scout cannot race a car built in a previous year. A new car is to be built from a BlastcarTM kit.

Fuel Canisters

Only Official BSA® CO2 canisters may be used for the official Blastcar race..

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