Down To Earth Mud Racing 2024 Racing Rule Book
Rule Book Disclaimer:
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 EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATIONS 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 reasonable and appropriate deviation from any of the specifications herein or impose any further restrictions that in his/her opinion does 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.
Attention: Starting with the 2024 season, a truck can win either first or second place in each class. However, it must have different drivers to qualify for both places in the same class.
General Safety Rules
Racing Season Safety Officials have final say in any issues that may be presented prior to race day.
All trucks must have at least a 6 point roll cage built with no less that 1.50 inch diameter tubing with no less that a 0.120 wall thickness, minus street, 4, and 6 cylinder classes where a bed mount roll bar will suffice. [Note: if you plan to bump up past street class you must have a minimum 6 point roll cage] Must have a fire extinguisher on board Ignition kill must be within reach of the driver when he or she is strapped in and ready to race. All trucks must have a minimum 5 point SFI approved harness for each occupant in the vehicle All drivers must wear a DOT approved helmet It is preferred for each truck to have a master ON/OFF switch located at the rear of the truck [rear firewall, near batteries, ect.] so safety officials can kill power to the truck in the event of an accident. Neck rolls are recommended From Small Block Modified up window nets are preferred. Front bumpers must be no wider than center of tires, unless a factory bumper FRONT BUMPERS MUST BE LOOPED (NO SHAPE EDGE BUMPERS) Zero tolerance on drinking if you plan to race MUD FLAPS ARE REQUIRED! Keep it simple, minimum size is 12×12, keep mounts inside frame of truck and must be safe and strong and attached tightly.
Starting Line Rules
All trucks will spin for lane choice.
Trucks will be staged based on first truck to the line.
Trucks must stage within a reasonable time.
Any truck that breaks the staging point greater than one foot will loss that time for their run.
The purpose of the start line is for the drivers to leave at the same time.
On Track Racing Rules
Four wheels off the track is a loss of that race time. Two wheels off the track are ok.
When a driver wrecks in front of you that you can see you must stop and help that driver. In the event you neglect this rule you will be disqualified for that race.
If a vehicle wrecks in front of you in a timed race and the vehicle behind you stops as rules states above the vehicle that stops must not be involved in the wreck and will be given a re-run.
If a vehicle wrecks in front of you in an eliminator race and the vehicle behind you stops as rules states above the vehicle that stops wins the race, but must not be involved in the wreck and must finish the lap crossing the finish line on its own power.
If a driver wrecks behind you continue to race for you time.
If you are stopped by an official or safety official and it causes you to stop racing you will be given another chance at your time
Excessive speeding through the wash out hole will be a loss of time for that race at RRMR.
Track owners and officials have final say on these rule judgments.
We want friendly racing with safety as the number one priority.
Protest Rules
-P&G Cubic Test (Protester must put up $500 in order to have a vehicle P&G Tested)
-Protester $500 will be rewarded to the vehicle being protested if it meets the class requirements. If the protested vehicle does not meet the requirement of the class then the $500 will be given back to the protester. If the protested vehicle does not meet requirements for the class and wins prize money in that class the prize money and trophy will be adjusted to the true winners of the class.
– IF YOUR ARE FOUND ILLEGAL YOU WILL BE REQUIRED TO RUN THE CLASS ABOVE YOU FOR THE REST OF THE YEAR.
-YOU MUST BE RACING IN THE CLASS THAT YOU HAVE CALLED A TRUCK OUT
-YOU MUST CALL OUT A TRUCK THE DAY OF THE RACE OR THE DAY BEFORE THE RACE.
-PROTESTER MUST BE PRESENT DURING THE P&G TESTING.
-ALL P&G TEST WILL BE CONDUCTED BEFORE DARK THE DAY OF THE RACE OR THE DAY BEFORE THE RACE.
-ONLY TRACK OFFICALS, TRUCK OWNER, TRUCK DRIVER, AND PERSON WHO CALLED OUT TRUCK WILL BE ALLOWED TO BE PRESENT DURING P&G TEST
-Any Protested trucks that choose to not have their vehicles P&G Tested will be assumed illegal for the class forfeit their winnings and will be moved to the next class.
RACE OFFICIALS RESERVE THE RIGHT TO P&G TEST ANY VEHICLE AT ANY TIME
Street Stock Class
*It is the intention of this class to be a budget friendly class that anyone can enter in a street legal truck.
*All safety rules apply
1. Body & Frame OEM body and frame Pure Stock Truck Must have factory body in the orientation that it came on the truck Must have full bed in truck No alterations to the cab in any way Doors must open and close Must have factory dash in vehicle
2. Fuel System Fuel cells approved OEM fuel injection ok if equipped in that model truck. 85 or newer model trucks may run intake with carb. system instead of OEM injection 750 CFM Max(no dominator style carburetor or Racing carburetor permitted in this class) (NO Modifications to carburetor) 93 octane (Max) NO Racing Fuel No Nitrous
3. Drivetrain Any type of Transmission other than power glide with or without stall converters Stock Brakes
4. Suspension Stock suspension. No Aftermarket Arms, No Baja Suspension Kits, Wheels Spaces are OK
5. Tires DOT approved tires only MAX 35 Tires may not be cut No tractor tires
6. Battery & Electrical OEM charging system ok May remove alternator and run multiple batteries in bed Stock ignitions or HEI distributors, no MSD
7. Engine Must be an engine and head offered in the vehicle for that model and year No mixing of engines. chevy for chevy, ford for ford, ect. Small blocks only (No Big Blocks) In frame headers only • No Turbo or Blowers allowed Engine must be factory location (Stock) No Aftermarket Blocks (No Exceptions) No race engines, no specialty heads, no stroked crank shafts, must be factory bore and stroke, (No engine lope sound at 1000 rpm vehicles in this class) (MUST PULL NO LESS THAN 18 INCHES OF VACUUM) No nitrous
8. Break Out Rule Any one truck that runs 5 seconds faster than fastest truck of the day will be bumped out of the class for the day and moved to small block modified (Super Stock) Class. You will not be allowed to keep your time in street. You will be given 2 passes in small block modified (Super Stock) Class. If you run in the 4 cylinder class or 6 cylinder class this does not apply to you. Track owners reserve the right to change this rule at anytime due to circumstances that might occur.
Safety
1. Full functional Stock seats with seat belts or racing seat with 5 point harness belts
2. Helmets are REQUIRED
3. Driver accessible fire extinguisher required
4. Roll cage inside or roll bar outside
5. Riders are permitted provided seat, safety belts and helmets are used RIDERS MUST REGISTER AND SIGN RELEASE & PROVIDE PHOTO ID NO MINOR RIDERS WITHOUT ONE OR BOTH PARENTS PRESENT.
Small Block Modified
*All Safety Rules Apply
1. Body & Frame Full cab in factory location No tube frame Door insides may be clearances for roll cage Interior may be gutted • Racing seat preferred Driver seat and stirring wheel has to be in factory position. May have racing steering wheel and coupler Must have full firewall and floorboard in the factory location Dash which can be aluminum. Bed floor may be removed Bed sides or skins from bumper to bumper (Metal) Front fenders and hood must be factory steel, Rear skins or bedsides can be steel or aluminum (Minimum 16 inches).
2. Fuel System Fuel cell ok After-market brake and gas peddles allowed. Any fuel (Note: if running alcohol please let safety officials know so the proper measures can be taken in case of an accident) No Nitrous, line and bottle mount must be visible, no bottle allowed on the truck in this class, and line must be capped or visible
3. Drivetrain Any transmission other than Power glide Any Transfer Case is OK Stall converters permitted Any Brakes Allowed (Transmission Brakes Must Have a Steel Plate Above Caliber) Hydraulic Steering OK
4. Suspension Factory suspension leaf springs in original position TWO WHOLE Leaf Springs Per Side Required Primary Suspension weight must be on leaf springs No Aftermarket Arms, No Baja Suspension Kits, Wheel Spaces are OK Ladder bars allowed and shock mounting changes ok No 3 or 4 link suspension
5. Tires Tractor tires ok V-Tread tractor tires Cut tires allowed. Cannot exceed 12 inches on the contact patch. Cannot exceed 35 inches tall (+/- one inch) Dot tires permitted No paddle tires Bead locks are allowed
6. Engine SMALL BLOCKS ONLY- 410 cubic inch Limit No SB2 Motor or Head allowed of Any Kind Must be in stock location Any style headers permitted No Turbo or Blowers allowed No Dry Sump Motor (No external oil pump)
2000 and NEWER MODEL ENGINE
Any factory production truck or SUV engine
Cast Block and Any Head of choice
Swapping from EFI to Carburetor or Carburetor to EFI ok
Fuel Injection System ok
If a truck is running a factory aluminum block, you must add 100 pounds of weight to the front third of the vehicle
1999 and OLDER MODEL ENGINE
Aftermarket Cast Iron Replacement Blocks that retain manufactures original Dimensions (example Sbc gen 1 Deck Height 9.025, Cylinder Bore Spacing 4.4 Etc.) (No Raised Cam Shaft Blocks)
No Aluminum Blocks
Any Aluminum or Cast Heads
Any one carburetor
Safety
1. Racing seat.
2. Five point harness seat belts REQUIRED.
3. HELMETS REQUIRED.
4. Battery on/off switch required.
5. Driver accessible fire extinguisher required.
6. Riders are permitted provided items 1-3 are met. Must register, sign and provide a photo Identification. NO MINOR RIDERS WITHOUT ONE OR BOTH PARENTS PRESENT.
Modified Class
*All Safety Rules Apply
1. Body & Frame Must be factory appearing with cab in stock location Body and cab in stock location No tubing frame No tunneling of the cab May hull inside doors and fenders Floor boards may be raised (max 8″ from stock position). Must retain factory firewall from 8 inches cut and above Bed sides or skins from bumper to bumper (Metal) Front fenders and hood must be factory steel, Rear skins or bedsides can be steel or aluminum (Minimum 16 inches). Preferred for all trucks to have factory glass removed and replaced with a lexan style window in its place interior may be gutted
2. Fuel System Fuel cell mandatory Any fuel (Note: if running alcohol please let safety officials know so the proper measures can be taken in case of an accident) No Nitrous, line and bottle mount must be visible, no bottle allowed on the truck in this class, and line must be capped or visible
3. Drivetrain Any transmission or transfer case permitted Transmission Brakes Must Have a Steel Plate Above Caliber Stall converters permitted Any Brakes Hydraulic Steering OK
4. Suspension Factory suspension leaf springs in original position No Aftermarket Arms, No Baja Suspension Kits, Wheel Spaces are OK Ladder bars allowed and shock mounting changes ok No 3 or 4 link suspension
5. Tires Tractor tires ok V-Tread tractor tires Cut tires allowed. Cannot exceed 12 inches on the contact patch. Cannot exceed 35 inches tall (+/- one inch) • Dot tires permitted No paddle tires Bead locks are allowed
6. Engine 510 Cubic Inch Limit No SB2 Motor or Head Allowed of Any Kind Must be in stock location Any style headers permitted No Turbo or Blowers allowed No Dry Sump Motors (No external oil pump)
2000 and NEWER MODEL ENGINE
Any factory production engine
Cast Block and any Head of choice
Swapping from EFI to Carburetor or Carburetor to EFI ok
Fuel Injection System ok
If a truck is running a factory aluminum block, you must add 100 pounds of weight to the front third of the vehicle
1999 and OLDER MODEL ENGINE
Any Aftermarket Block
No Aluminum Blocks
Any Aluminum or Cast Heads except for Big Duke or Big Chief Heads
Any one Carburetor
Safety
1. Racing seat.
2. Five point harness seat belts REQUIRED.
3. HELMETS REQUIRED.
4. Battery on/off switch required.
5. Driver accessible fire extinguisher required.
6. Riders are permitted provided items 1-3 are met. Must register, sign and provide a photo Identification. NO MINOR RIDERS WITHOUT ONE OR BOTH PARENTS PRESENT
Super Modified Class
*All Safety Rules Apply
1. Body & Frame Any Body or frame style you desire Tube Frame ok
2. Fuel System Fuel cell mandatory Any fuel (Note: if running alcohol please let safety officials know so the proper measures can be taken in case of an accident) No Nitrous, line and bottle mount must be visible, no bottle allowed on the truck in this class, and line must be capped or visible
3. Drivetrain Any transmission or transfer case permitted Transmission Brakes Must Have a Steel Plate Above Caliber Stall converters permitted Any brakes
4. Suspension Any style suspension permitted
5. Tires Any Tires you wish “ Not exceed 12 inches contact patch 35 inches tall +/- 1 inch
6. Engine Any engine you wish Any one carburetor or EFI system permitted Any headers
Safety
1. Racing seat.
2. Five point harness seat belts are required.
3. Helmets are required.
4. Battery on/off switch required.
5. Driver accessible fire extinguisher required.
6. No riders are permitted.
Open Class
*All Safety Rules Apply
1. Body & Frame Any Body or frame style you desire
2. Fuel System Fuel cell mandatory Any fuel (Note: if running alcohol please let safety officials know so the proper measures can be taken in case of an accident) Nitrous Oxide allowed
3. Drivetrain Any transmission or transfer case permitted Transmission Brakes Must Have a Steel Plate Above Caliber Stall converters permitted Any Brakes
4. Suspension Any style suspension permitted
5. Tires Any Tire you wish- Any Tires you wish “ Not exceed 12 inches contact patch 35 inches tall +/- 1 inch
6. Engine Any engine you wish Any carburetors or EFI system permitted Any headers
Safety
1. Racing seat.
2. Five point harness seat belts are required.
3. Helmets are required.
4. Battery on/off switch required.
5. Driver accessible fire extinguisher required.
6. No riders are permitted.