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 2002 Antioch Speedway WSS Sprints Rules

2002 Wingless Sprint Rules - All Pro Series - Antioch Speedway

1. Absolutely no titanium, carbon fiber or exotic lightweight parts allowed.
2. All cars must weigh 1,750 lbs., minimum, after main event including driver.


1. The division is open to any Sprint Car or Sportsman Sprint chassis from 1984 to present. NO SUPERMODIFIED CHASSIS allowed.
2. Minimum main cage structure to be no less than 1-3/8" O.D. with a minimum wall thickness of .095" Chrome Moly tubing.
3. Minimum wheelbase 83" and maximum wheel base 90".
4. The car's body, motor, driver seat and fuel tank assembly must be mounted to the chassis centerline.
5. Sprint Car type bumpers and nerf bars are mandatory and must be securely bolted to chassis, using minimum quarter-inch bolts.
6. Bumpers and nerfs must be constructed of tubing with a minimum 1" O.D. and .083" wall thickness.
7. Side nerfs may not stick out past outside of rear tires.

1. All drive trains must have a driveline or rear end coupler system (to disengage rear end from motor). Torque arm drivelines may not be used. All drivelines must be enclosed and contain no more than one U-Joint and that must be at the front of the driveline.
2. Buckley Yokes are acceptable.
3. A torque tube safety strap or drive line hoop is recommended.
4. Any conventional quick change with a maximum 2" axle offset is allowed.

1. Any conventional torsion bar, coil over or combination of the two is acceptable.
2. No independent rear suspension.
3. Straight front axles only.
4. No hydraulic or electrical devices that can adjust suspension while a driver is in the car.
5. Only one shock per wheel.

1. Any aluminum or steel six-pin or spline wheels allowed.
2. Wheel width: A - Front wheels maximum width of 10".
B - Left rear wheel maximum width of 14".
C - Right rear wheel maximum width of 18".
3. All wheel diameters must be 15".
4. Screw or dzus on wheel covers are allowed.
5. Any wheel offsets are allowed.
6. Bead locks recommended and allowed on all wheels.
7. Any Sprint Car tire or compounds legal for any corner of car except right rear.
8. Right rear MC 3 mandatory.

1. Minimum left front, left rear (inboard) brake system.
2. Right rear brake optional.
3. Steel and aluminum rotors only. No titanium rotors allowed.
4. Brake systems must be in proper working order.

1. Conventional Sprint Car hood, all hoods must be sealed at the air cleaner. No holes in hood, scoops ok but must be sealed at the top and back. Conventional side body panels and tail tanks only.
2. No side foils, rudders or panels are to extend beyond roll cage on any side. No body pieces to exceed beyond or underneath front torsion tube except hood. Sun shields cannot restrict vision. No wedges or foils underneath racecar. No pieces may be added to the frame so as to resemble, imitate or be specifically designed to deflect, trap or form a windbreak of any nature, except those to cool/protect the motor and braking system.
3. Sun visors are limited to 5" length and no wider than the width of the chassis.
4. Top of the right side arm guard to be no more than 36" from top of the bottom frame rail.
5. Flat engine belly pans allowed.

1. A securely mounted fuel cell (Sprint Car or Midget type) with a bladder will be required of all cars in competition.
2. Minimum tank size 27 gallons. Maximum tank size 40 gallons.
3. Fuel tanks may not be mounted to the chassis utilizing any portion of the access plate or the nut plates bonded into the fuel bladder.
4. In the area of mounting the fuel tank to the chassis, all mounting points must have inner and outer plates attached to the shell. These plates must be of adequate size to insure the tank being secure to the chassis. All tanks must have a minimum of four mounts to the cage.
5. It is mandatory that the tank vent has a check valve.
6. Fuel systems must be equipped with a shut off device located within easy reach of the driver.
7. It is recommended that tanks have a Waterman Shut off System or main fuel line shut off for additional safety.
8. All fuel lines and fuel filters must be securely mounted.

1. Cast iron block and heads required. No aluminum or other exotic metals allowed.
2. 360 cu. in. maximum.
3. Flat tappet cams only. Roller rockers and girdles are OK.
4. Gear drive and dry sump oil systems allowed.
5. Holley #4412-2300 Series 500 cfm. 2bbl. carburetor.
Part no.4779 1 11/16 throttle bore; shafts and throttle plates must be stock
5a. Venturi may be opened .010 (ten thousandths) over catalog specs. MUST pass all carburetor tool checks.
5b. Choke tower may be removed.
5c. External jets allowed.
6. Aluminum 4bbl. intake manifold allowed.
7. The bottom of the carburetor may be no more than 4 inches from the top of the manifold. This includes adapters, spacers, etc.
8. No Ram intakes allowed.
NOTE: Throttle pedal must have toe strap and a minimum of three throttle return springs in the system and at least one of these must be connected to the butterfly shaft.

1. Any ignition system or magneto allowed.
2. All cars must have working starters.
3. All flywheels must have steel or thick aluminum shield that covers at least 180 degrees of flywheel.
4. All cars must be able to bump, self start or have the use of a clutch to start and pull away under its own power at any time.
5. Red flag restarts will be assisted starts with no penalty.
6. All cars are required to carry a minimum 12 volt battery. Recommended location for battery is under driver's seat.
7. Battery must be securely mounted and have protective covering (rubber) to prevent any acid spills during accidents.
8. All cars must have a clearly marked on/off ignition switch within reach of the driver.

1. Alcohol or gas allowed. No Nitro or Nitrous Oxide.
2. No electric fuel pumps allowed.
3. No oxygenated additives allowed.

1. All cars must have mufflers installed that muffle engine noise and meet track regulations.


2. Seating System

I. Aluminum and steel seats are mandatory. The seating system should provide a lateral support on both the left and right sides.
II. High back seats recommended.
III. It is mandatory that all cars have a headrest of high impact, shock-absorbing material behind the driver's head with a minimum thickness of one (1) inch.
IV. Seat should be mounted in four places to the chassis with a minimum 3/8" steel bolt and nut. Each mounting hole in the seat must have a minimum 2" diameter mounting plate with a minimum .060" thickness.

3. Roll Cage Padding

I. All chassis roll cage tubes and bars close to the driver's head must be padded with high impact approved roll cage padding.
II. Knee pads and/or knee guards mandatory in cockpit area.

4. Roll Cage Nets

I. It is recommended that all cars be fitted with roll cage nets on both the left and right sides of the roll cage.
II. Right side net mandatory.

5. Steering Wheel

I. Steering wheel must be quick release type.
II. Center of steering wheel must be padded with a minimum 1" thick pad.

6. Uniforms

I. Nomex uniforms, gloves and shoes are mandatory.
II. Minimum 2 layers of protective clothing is required. (1 layer must be fire retardant under garments.)
III. Head socks or helmet skirts are mandatory.
IV. Neck collars are mandatory.

7. Helmets

I. SA 95 or newer helmet is required.


1. Any fighting in the pit area will subject all parties involved to suspension depending upon the seriousness of the incident and decision of the Management. "AVERAGE 12 MONTHS". Any continuing problems from the same individual will result in permanent suspension. Any driver, car owner or pit crew that goes to anyone's pit and causes trouble will be suspended and/or fined, plus loss of all points and money for the night.
2. We expect courteous conduct from all participants at all times. We do not tolerate profanity directed towards any other person, including Officials. We expect you to look like ladies and gentlemen and act accordingly. An infraction of this rule will incur up to a 12-month suspension.
3. Driver of car will be responsible for the conduct of anyone associated with their car, whether in pits, grandstands or parking lots. Driver will be penalized because of actions of said people.
4. Cars not in the main event must be loaded immediately after the last event in which they ran. No motors are to be started after 11:00 P.M.
5. Tampering with another driver's car is grounds for suspension.
6. Starter's stand is for the Official's use only. You can be disqualified for using it. You may enter the grandstands by using the main entrance only. You may not consume alcohol while in the grandstands and then return to pit area. This privilege will remain open unless it is misused. Abuse will result admission to grandstands being prohibited.

1. Any modifications not covered in these rules will not be allowed unless approved by Speedway Officials.
2. Equipment will not be considered "legal" simply because it went through inspection unobserved or because a rule has not been written against it.
3. Cars are subject to inspection at anytime.
4. Officials reserve the right to confiscate and hold any parts and/or equipment not conforming to the rules.
5. Officials reserve the right to judge, decide and establish what constitutes a legal part or car.
6. Officials decisions are final.

It is ultimately the obligation of each participant to insure that his/her conduct and equipment comply with all applicable ALL-PRO rules and regulations as they may be amended from time to time. No expressed or implied warranty of safety shall result from publication of or compliance with these rules. They are intended as a guide for conduct of the sport and are in no way a guarantee against injury or death to participants, spectators or others.

The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and by participating in these events, all participants are deemed to have complied with these rules. NO EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATION OF OR COMPLIANCE WITH THESE RULES AND/OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official.

The race director shall be empowered to permit minor deviations from any of the specifications herein or impose any further restrictions that in his opinion do not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF SPECIFICATIONS. Any interpretation or deviation of these rules is left to the discretion of the officials. Their decision is final.

2002 STATE RULES ALLOW NO LIQUID DUMPING FACILITIES AT THE FAIRGROUNDS. Each race car that enters the Fairgrounds Pit Area MUST have an empty container(s) approved by the MANAGEMENT OF ALL- PRO RACING SERIES that will hold at least 2 gallons of used oil (fluids) for collecting anything that may be drained out of the race car or tow vehicle at each event.

These container(s) must be removed with the racecar after every race and be disposed of at an approved facility at the owner's expense.







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