2008 Jr. Sprint General Rules

All drivers, owners, and crew persons are responsible to follow all the Safety rules, and track rules of Delta Speedway. Any person violating those rules will be subject to suspension, and expulsion from the facilities. This is at the sole discretion of Delta Speedway and its appointed officials.

Disclaimer: All rules may be changed/modified/adjusted as needed by the Delta Speedway Racing Committee.  Rules are designed and enforced to keep competition equal and safe.

Age. Drivers ages 5 through 13 (A driver whose 14^th birthday falls during the racing season will be allowed to finish the season in which they began accruing points before their birthday.) may compete in the JR Sprint Class.  (Subject to Referee’s Discretion)

Roll cage. Roll cages shall be at least 1 inch .083 wall thickness mild steel, or 1 inch .065 wall thickness chromoly steel minimum. The front section of the cage shall be no further back than the steering wheel. Roll cage shall have sufficient fore and aft bracing and strength to support the weight of the car & driver in case of an upset. Cage shall have gussets at the intersecting bars to the uprights. Bends must have at least 3 inch radius. No square or pointed corners allowed. Roll cage must be a minimum of 3 above the drivers helmet.  It is mandatory to install a cross brace behind the seat to support the shoulder harness.

Bumpers And Nerfs. Car must have bumper extending beyond the front and rear tires. Nothing may extend beyond a tangent line from the outside edge of the tires to the bumpers. Nothing may extend beyond the outside edge or the tires or wheels, whichever is the widest. No sharp corners or design as to hook or damage.  All cars must be equipped with nerf bars. Nerf bars must extend to inside edge of tires, but not beyond the outside of tire.

Safety: Seat belts must be securely attached to the car and used at all times.  Metal to metal latches only, 5-point seat belts, shoulder harness, and sub strap are required. Belt dates must not be over 3 years old. (Example: Oct.03 may be used in 2004,2005,and 2006) Arm restraints are mandatory and must be adequately adjusted to keep the drivers hands below the top of the roll cage. Helmets must be full head coverage competition type and one of the three latest

SNELL Auto approvals.  No MC rated helmets allowed.  All drivers will wear a name brand flame-retardant full one-piece Nomex uniform, rated 3-2A/5 or better. Single layer, and Karting suits are not allowed.  Neck braces are mandatory; cage nets, or headrest are required.  SFI gloves are mandatory for safety.  Delta Speedway suggest each driver wears Nomex underwear, and hood sock.  Also each car should be equipped with a halon type fire extinguisher system.

Cockpit Controls. On and off switches must be on dash, top of the cowl or on steering wheel. On/off switch must be functional. No radio communication is allowed with the car or the driver.  Cockpit controls: carb adjusters, kill switch and engine monitor. No wing sliders or pan hard adjusters driver operated in cockpits.

Battery. All wet cell batteries mounted in the cockpit must be covered and vented outside the cockpit area.

Fuel. No alcohol allowed. Any person running alcohol will be disqualified and suspended.

Weight. JR Sprint Class cars must weigh a minimum, car and driver weight 400 lbs.   All cars must meet weight requirement using scales provided by Delta Speedway.  Cars must go directly to scales as directed by racing officials.  Any driver that fails to go directly to the scales will be automatically disqualified. 

Suspension. Coil-over shock suspension only. Tread; Maximum 46 inches. Minimum 32 inches, center to center of tires.. Wheelbase; Maximum 52 inches. Minimum 50 inches, center of front axle to center of rear axle. Rear axle to be steel only 1 1/4" min dia. Steering; Front wheels must be connected by a solid or tubular tie rod.  Rear wheel drive only.  All suspension bolts except wheel nuts must be secured by some type of locking device, aero nut or tie wire.

Shocks. Aluminum and steel body shocks are legal.

Brakes. Brakes will be of sufficient strength so as to slide the wheels while the car is in motion at any given time.

Tires And Wheels. Wheels to be 8" dia steel or aluminum non-beadlock only.  Right rear spec tire to be 10 x 8.50 x 8 American Racer (McCreary) stamped NMMA SD44. There can be no grooving, siping, softening or altering the tire in any way. It should be as it arrives from the manufacturer. Wheels must be held on with 4 or more standard lug nuts or knock-off hubs.

Bodies. All cars must have complete bodies of Sprint Car design only.  Tail sections must be in place for time trials and all races. There must be a metal firewall between driver and engine, made of 24 gauge steel or .0625" aluminum.  Body of car must be made of aluminum, metal, fiberglass or high impact plastic. All cars must be painted an attractive color or colors.  No rear view mirrors. The only part of the car allowed to be dismantled for driver to enter or exit is a quick release steering wheel hub.  Mud guards must be aluminum, metal, fiberglass or high impact plastic. There will be no tops or body encasements allowed. Minimum opening on the right side of the car will be 14" from top of roll cage to the top of the mud guard or sissy bar and 16" minimum from front down tube to the back.  All mechanically operated devices must be mounted below the driver’s shoulders for safety.  All fuel tanks must be equipped with a one-way check valve designed to prevent the spillage of fuel from the fuel tank vent in the event of a rollover.

Transmission. The drive will be by engine or jackshaft mounted clutch. No axle mounted clutches allowed. (a). No direct drive will be allowed. Chain guards will be made of .090 inch thick aluminum or equivalent and will run on top of chain from the front of the front sprocket to the center of the rear axle. Driver must not be able to touch the chain or sprockets while sitting in the cockpit.

Wings. Right side board, maximum 42" x 20". Left side board, 42" x 20". Minimum size is 6 sq. ft. Maximum size is 7.5 sq. ft.  No split stage wings.  No wicker bills.  The wing cannot be mounted outside the centerline of the tires. Side boards may not extend more than 3" beyond center section and sides must cover center section. All wings must have 1/16" radius edges or edging. No raw edges. No wood except for ribs or spars inside center section. Wings sides cannot be more than 4" below top of roll cage. If a nose wing is used, it may not exceed 18" by 24" and side boards no larger than 9" by 21" and installed so as not to obstruct the drivers vision. nose wing must carry the same car number as the body nose. . Top wings are mandatory to enter a night's event. Cars may finish without a wing if no replacement is available.

Numbers. All cars must have legible numbers painted in contrasting colors on both sides of car and the nose. Minimum height of numbers is 8" on the nose and nose wing, 10" on each side of the tail and 12" on the wing. Numbers must be separated from advertising so they will be readable.  No gold or silver leaf or prismatic numbers will be allowed on the cars. Must have a 12" number on top of the wing facing the front of the car.

License. All drivers, when signing in for any race, must show their current Delta Speedway membership card or receipt to the Registration Steward, who will hold their card or receipt until the Referee releases them at the conclusion of race event.

Ballast. Any material used for ballast must be firmly attached as a part of the car's structure. No liquid or loose ballast such as water, fuel, oil, sand bags, rocks, log chains etc. allowed.

Hubs. Front hubs; Go kart type with 5/8" bearings and 5/16" wheel studs minimum. 5 Star sprint style are acceptable.  Rear hubs; Douglas 5 x 130 Go kart type or equivalent.  5 Star sprint style are acceptable. 

Rear Axle: No splined axles.  All cars may run a 40 mm, 50 mm, 1 ¼, 1 3/8, or 1 ½ solid or hollow axle.

Engine Rules. The only engine approved for the Jr. Sprint Class in 2006 is the Briggs and Stratton World Formula Motor. The BS World Formula motor must be purchased sealed from Delta Speedway.  No changes or alteration may be made to the motor.  All Motors must run the pipe that is supplied with the motor.  Any and all aftermarket pipes are not allowed.  Any changes or alterations will result in an immediate suspension from Delta Speedway.  The rev limiter must be installed, and in working condition at all times.  The Rev Limiter must be as originally manufactured.

Engine Claim: Any entered driver may claim a Briggs & Stratton Worlds Formula Engine from any other entered driver.  The claim amount is the current price the motor sells for from Delta Speedway.  Motor will be complete, matching in parts and accessories as available from Delta Speedway.  If an immediate replacement motor is not available to purchase, motor CANNOT be claimed.

General Rules: Please read the general competition rules. All drivers and crew are responsible for knowing and following these rules.

Protest Rules: Please read the protest rules. All drivers and crew are responsible for knowing and following these rules.