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General Race Rules
General rules apply to both mud bog and mud drag style races
All vehicles must be 4-wheel drive
All drivers must possess a valid driver's license. Drivers under the age of 18 must have written, on sight permission from parent or legal guardian.
All drivers must sign a waiver.
All drivers must wear a helmet and seatbelt. Drivers of alcohol burners, vehicles with blowers, or vehicles using Nitrous Oxide must wear a firesuit.
All vehicles must pass an on sight tech and safety inspection prior to registration. If at any time after the initial inspection, a vehicle is found to be illegal for any class, in which it is entered, that vehicle will be disqualified for the remainder of the event.
All vehicles must be equipped with a rollbar or hardtop (steel in Super Stock and up).
No tire chain or track vehicles.
Vehicles equipped with superchargers and/or running Nitrous Oxide must have scatter blankets or shields around the gearbox. Blowers must have limiting straps.
General Registration will end one hour before scheduled starting time.
Late entries start one hour before scheduled starting time. Registration and Tech will close 30 minutes before starting time.
Entry will be $25.00 per class. Working MMOR member's entry fee will be $20.00 per class. Vehicles may run only once per class.
Each competition vehicle may enter a maximum of 3 classes, provided class and general rules are followed. Exception: If the vehicle races in two male classes and one female class, you may run an additional female class
Late entries will pay an additional $5 per class and will run first.
No refunds will be given after a class starts.
Disqualification line is a minimum of 150 feet beyond the finish line.
All vehicles making a full pass must come to a complete stop in the shut down area and may not move either forward or backward until clearly signaled to do so by the red flagman. Leaving the shut down area or backing away from the disqualification line without being cleared by the red flagman will result in disqualification.
Payback will be 100% of entry fees. (1st= 40%, 2nd=30%, 3rd= 20%, 4th= 10%) In the event that fewer than 4 legal runs are made; all remaining prize money will go to the first place driver. Sponsoring towns are encouraged to raise additional prize money for classes 6 and 7 to help draw faster racers. We will pay out classes 1 & 2 after class 3 is complete, classes 3 & 4 after class 5, and classes 5, 6, & 7 after class 7
In the event of a tie, the tying drivers will split the prize money for that place and the next lower place. All entrants below that place will be moved one place farther down in the standings. If trophies are awarded, the tying drivers will have a coin toss to decide which driver will be awarded the larger trophy.
All prize money should be collected no later than 30 minutes after class 10 is over. If money is not picked up, it will be forfeited back to MMOR.
Mid-Missouri Off-Roaders will officiate and may refuse any driver that appears intoxicated and/or any vehicle that is modified or operated in an unsafe manner.
Mid-Missouri Off-Roaders will provide a wristband for each driver to be placed on the left arm. Wristband must be shown at entering pit and at anytime if requested. If caught or suspected of being under the influence of alcohol or drugs, the wristband will be removed and entry fee will not be refunded. This will also prevent you from racing. If wristband has been altered in any way, you will also not receive refund or be allowed to run. Only drivers can withdraw from class to make sure wristband has not been removed.
The red flagman will be the head official at trackside and will make all decisions on trackside controversies. Only past or present officers or board members are to be red flagmen.
Vehicle has two minutes to stage after pit has been cleared.
If the first truck in a class is instructed by race officials to take the cable, all trucks in that class must take the cable.
Vehicles that come out of the side of the pit will be disqualified. Vehicles that get stuck in the pit will be measured at the farthest hub.
Time starts with first movement of race vehicle. Time will stop when front of vehicle crosses finish line or with the waving of the red flag. Side by side mud drags time will start on the green light.
If a vehicle does not pass the 20 foot mark, the driver has the option of a re-start immediately after being pulled out of the pit.
No alcoholic beverages will be allowed at trackside.
A kill-switch cable will be provided to all persons wishing to use it.
The kill-switch cable may be required to be hooked up to all vehicles using any of the following: Supercharger, Turbocharger, Nitrous Oxide, Modified DOT tiresand Paddle tires if the location does not provide sufficient shut-down area.
If the kill-switch cable unplugs prior to the finish line, the vehicle will be returned to the starting line for a second pass. The driver will have 2 minutes to correct the problem and re-enter the pit. No third chance will be given.
Vehicles that continue to run after being unplugged will be disqualified.
MMOR may waive the kill-switch requirement if facility allows sufficient shut down space.
There will be no exhibition runs during the sanctioned event. All costs associated with exhibition runs will be the responsibility of the sponsoring town or organization. The Mid-Missouri Off-Roaders will provide no workers or equipment for an exhibition runs, with the exception of the optional "Unlimited Cut and Paddle Tire" class.
All members of Mid-Missouri Off-Roaders must sign up to work at least one class before they are allowed to register. This rule will not take effect if the sign-up sheet is full.
Any protest of a run must take place no later than 10 minutes after the completion of the class in which the protested run took place. The protest committee will consist of the tech chairman, club president, and red flagman for that particular class. A fee of $25.00 will be assessed for all protests. In the event that the protested run or vehicle is found to be legal, the $25.00 will be donated to a charity of the club's choice. If the vehicle or run is determined to be illegal, the $25.00 will be refunded to the individual who presents the protest. Protests must come from drivers within that class only.
The Mid-Missouri Off-Roaders will enforce a "no tolerance" rule pertaining to disputes with race officials. If an official is put into an argumentative situation, the person arguing with the officials will be asked to leave the premises immediately. No threats will be tolerated. Decisions of MMOR officials are final.
Mud Bog and Mud Drag Class Rules
(O) Unlimited Cut and Paddle Tire: Tires must be modified DOT approved or paddle-style only. Tube frames only. In addition to the sanctioning fee, sponsoring towns are responsible for providing the following bonus purse for this class only: $500 for 1-9 entries, and $1,000 for 10 or more entries. Entry fee will be $25 and will be added to the purse. This class is optional for sponsoring towns and organizations. The town may determine where in the class order to run this class. Events featuring this class will be noted on the Mid-Missouri Off-Roaders mud race schedule. Points will not be accumulated in this class. All other Class 5 rules apply.
(1) Hot Street up to 36.5": Drivers may be male or female. Tires must be unmodified DOT approved of 36.5" or less in diameter. All equipment including lights, wipers, full glass, radiator, and charging system must be present and in working condition. No more than 4 engine modifications permitted. Motor Plates are not allowed. Axles and all major driveline components must remain in stock location. Vehicle must retain factory style suspension (lift kits allowed). No gutting of any kind. Fenders may be trimmed for tire clearance. Vehicles must have mufflers and exhaust that exits past transfer case. Turbos*, superchargers*, aftermarket mechanical fuel injection, and multiple carbs are forbidden. Fuel must be gasoline, diesel, or propane. No Nitrous Oxide allowed.
(2) Stock up to 44.0": Tires must be unmodified DOT approved of 44" or less in diameter. Vehicles powered by V-8 or V-10 gas engines must pull a minimum of 15" of vacuum at 800 RPM. (Borderline engines can be approved by Vice President and Head Tech). Factory performance parts are considered performance parts (Ford Racing, GM Performance, Mopar Performance, etc). All engines must have been available from the factory in the vehicle. A maximum of two (2) engine modifications allowed. The following will be considered modifications. You may pick two from this list.
Aftermarket Carb
Aftermarket Intake Manifold
Aftermarket Headers
Aftermarket Ignition System (coil/distributor/ing. box)
Carb and Throttle Body Spacer (1” carb to intake adapter allowed)
Axles and all major driveline components must remain in stock location. Engines must be muffled (no open headers). Full body required. Turbos*, superchargers*, aftermarket mechanical fuel injection, and multiple carbs are forbidden. Fuel must be gasoline, diesel, or propane. Motor Plates are not allowed. No aftermarket aluminum heads. No Nitrous Oxide allowed. No gutting. Fenders may be trimmed for tire clearance.
(3) Super Stock up to 40.0" A: Small block engines only. See general Super Stock rules below.
(4) Super Stock up to 40.0" B: Big block engines only. See Super Stock general rules below.
General Rules for both Super Stock A and B classes. Tires must be unmodified DOT approved of 40" or less in diameter. Axles and major driveline components must remain in stock location and be of OEM specs (no aftermarket chain drives. Must have transfer case). Vehicles must retain full body with windshield. Fiberglass must have OEM dimensions. No gutting. Fenders may be trimmed for tire clearance. Radiators must be in front of engine. Engine must be in factory location. If running an aftermarket firewall, it must be in the original location. Driver must sit in stock location. Suspension limited to any OEM style. 4 or 3-links will be limited to vehicles so equipped from the factory, and must mount in factory location and configuration. Frame must be OEM style. Must run 4 OEM style brakes (disk or drum) located at the outer hub (wheel). Open headers are allowed, and may exit through hood. Turbos*, superchargers*, aftermarket mechanical fuel injection, and multiple carbs are forbidden. Alcohol may NOT be used as a primary fuel. No Nitrous Oxide allowed. Seat belts must be four point or more hook-up. Fire extinguishers required.
(5) Open Super modified: Run what you brung. For the safety of the drivers, skimmers/rails will run first in this class. Tires may be any size, style or configuration, including duals. Tires may be modified for performance gains. Axles and other driveline components may be relocated. Tube frames may be used. Alcohol, Nitrous Oxide, fuel injection, multiple carbs, turbos, and superchargers are all allowed. Seat belts must be four point or more hook-up. Fire extinguisher required.
(6) Stock up to 33.0": Tires must be unmodified DOT approved of 33" or less in diameter. Vehicles powered by V-8 or V-10 gas engines must pull a minimum of 15" of vacuum at 800 RPM (borderline engines can be approved by Vice President and Head Tech). Motor Plates are not allowed. No aftermarket aluminum heads. Axles and all major driveline components must remain in stock location (factory style suspension lift kits allowed). Engines must be muffled (no open headers). Full body required (no gutting, fender trimming for tire clearance is allowed). Turbos*, superchargers*, aftermarket mechanical fuel injection, and multiple carbs are forbidden. Fuel must be gasoline, diesel, or propane. No Nitrous Oxide allowed. A maximum of two (2) engine modifications allowed. The following will be considered modifications. You may pick two from this list.
Aftermarket Carb
Aftermarket Intake Manifold
Aftermarket Headers
Aftermarket Ignition System (coil/distributor/ing. box)
Carb and Throttle Body Spacer (1” carb to intake adapter allowed)
- (7) Women's Hot Street up to 36.5":
Women drivers only. Tires must be unmodified DOT approved of 36.5" or less in diameter. All equipment including lights, wipers, full glass, radiator, and charging system must be present and in working condition. No more than 4 engine modifications permitted. Axles and all major driveline components must remain in stock location. Vehicle must retain factory style suspension (lift kits allowed). No gutting of any kind. Fenders may be trimmed for tire clearance. Vehicles must have mufflers and exhaust that exits past transfer case. Turbos*, superchargers*, aftermarket mechanical fuel injection, and multiple carbs are forbidden. Motor Plates are not allowed. Fuel must be gasoline, diesel, or propane. No Nitrous Oxide allowed.
- (8) Pro Stock up to 54.0":
Tires must be DOT approved of 54" or less in diameter. Tires may be modified for performance gains. Fuel injection or multiple carb set-ups may be used. Wheelbase may be modified up to a maximum of 30". Vehicles need not be licensed or insured. Body panels may be removed. Alcohol may be used as primary fuel. Turbos* and superchargers* are forbidden. Vehicles must retain stock style frame. Nitrous Oxide allowed. Seat belts must be four point or more hook-up. Vehicle must have a full roll cage attached to frame at no less than 6 points. Fire extinguisher required.
- (9) Four and six cylinder class:
DOT approved 38.5 or smaller tires. All engines must have been available from the factory in the vehicle. Engines must pull a minimum of 15" of vacuum at 800 RPM (borderline engines can be approved by Vice President and Head Tech). Motor plates are not allowed. No aftermarket aluminum heads. Factory performance parts are considered performance parts (Ford Racing, GM Performance, Mopar Performance, etc). Axles and all major driveline components must remain in stock location (lift kits allowed). Larger axles allowed with OEM style suspension and location. Engines must be muffled. Full body required (fender trimming allowed). Turbos, superchargers, and aftermarket mechanical fuel injection and multiple carbs are forbidden. No nitrous oxide or alcohol permitted. A maximum of two (2) engine modifications allowed. The following will be considered modifications. You may pick two from this list.
Aftermarket Carb
Aftermarket Intake Manifold
Aftermarket Headers
Aftermarket Ignition System (coil/distributor/ing. box)
Carb and Throttle Body Spacer (1” carb to intake adapter allowed)
- (10) Women's Super Modified:
Women drivers only. All other rules from Class 5 (above) apply. OEM turbos and superchargers allowed. Tire diameter will be determined by manufacturer's sidewall stamp. Women drivers are eligible for competition in all seven classes. Male drivers may run in all but Classes 7 and 10. Vehicles legal for lower classes may advance to higher class without additional safety requirements.
Mud Drag Class Rules - As of March 18th, 2007 Class 6 will be eliminated and there will be no restrictions on tire size in any of the classes. All other class rules will be the same as the Mud Bog rules.
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