NORTHWESTERN MUD RUNNERS
GENERAL RULES AND REGULATIONS 
 
All participants agree that by entering a mud run event shall constitute an agreement by him/her to be bound by all of the rules and regulations covering the event. The participants agree to be bound by any of the decisions of the race official or NWMRA Board. The participants also agree to release and waive from liability, and agree not to bring action against the NWMRA, NWMRA Board of Directors, race officials, event sponsors, event promoters, and any other event official from any loss or damage caused by decisions erroneous or otherwise, whether based on negligence otherwise, or decisions based on malfunctions of electronic or mechanical equipment, and also from any loss, damage, or injury associated with any event whether such action constitutes negligence or otherwise. NWMRA makes no representations or expressed or implied warranties that compliance with the rules and regulations published in the rule book will prevent or guarantee against injury or death to spectator or participants or damage to personal property. These rules and regulations constitute the minimum acceptance standards for competition and are intended as a guide for conduct of sport. Safety is the responsibility of equipment manufacture, vehicles and engine builders, and participants in the event. Participants are expected to be alert to the inherent hazards of mud racing and are admonished to exercise good safety precautions and procedures. (The word participant shall include any person directly or indirectly associated with any vehicle lawfully on the premises for the purpose of competition, including but not limited to owners, drivers, and crew members.)
 
Drivers under 18 years of age must have written consent from a parent or guardian and will need NWMRA Board permission to enter.
 
Courteous conduct is expected of all participants. Horseplay, mud wrestling, throwing objects, tampering with competitors' vehicles, or general bad conduct will not be tolerated. If at any time an individual's actions or conduct are not in the best interest of NWMRA, in option of Board Members, that individual will automatically loose winnings and/or be asked to leave.
 
NO ALCOHOLIC BEVERAGES OR CONTROLLED SUBSTANCES will be allowed in the pit area. Any driver or pit crew found to be under the influence of alcohol or drugs, regardless of the amount, will be disqualified and asked to leave.
 
The shut down area and starting line shall be clear of people and machines during each run. No spectators will be allowed at the starting line or at the end of shut down.
 
All drivers MUST wear D.O.T. approved helmets.
 
Eye protection (face shield, goggles, or safety goggles) must be worn in any vehicle that has an open windshield.
 
Driver restraining system required in all vehicles. No passengers.
 
Front and rear tow hooks or clevis required on vehicle, no chains or mud flap below front bumper.
 
Vehicle must have forward and reverse gears.
 
Vehicle must have working 4 wheel drive to make any passes.
 
Fuel cells allowed in all classes but must be approved by tech for safety.
 
Batteries must be securely bolted to vehicle and are not allowed in the driver compartment (no bungee cords).
 
All vehicles must have working neutral safety switches, manual transmissions must work with clutch petal.
 
No tire chains or studs allowed.
 
No unsecured or loose objects in race vehicles.
 
NWMRA strongly recommends that drivers carry fire extinguishers in the vehicles. Fire extinguishers are Mandatory in Modified, Mod II, and unlimited trucks- please ask for one if you do not have one. Driver must notify race officials and provide their own fire extinguisher if they have a chemical preference.
 
If your vehicle becomes stuck during the race, do not continue to spin the tires and dig holes. If this is ignored you will be disqualified. Once a vehicle stops forward motion, the run ends and distance will be measured.
 
There will be a tech inspection on all vehicles. Random inspections will be made throughout the season.
 
A race consists of two heats. The driver with the lowest combined time for the two runs will win that class. In the case of a tie, there will be a run off for that position.
 
A foul will disqualify a driver from that class. The driver will not be eligible for trophies or prize money. A foul consists of: (1) leaving the lane to left or right side, (2) early or false start, or (3) an incomplete pass. A foul is determined by the race officials. The decision is final!
 
Trucks may complete in two classes plus the woman's class. Trucks in Street Stock, Super Stock, Woman's, and Modified may run only once per class. A driver may run more that 1 truck in a class. Trucks in Mod II and Unlimited may run twice per class with a different driver.
 
TECH CREW AND/OR NWMRA BOARD HAS THE FINAL WORD ON WHAT IS SAFE AND WHAT IS NOT SAFE. VEHICLES DETERMINED UNSUITABEL FOR THE RACE BY OFFICIALS WILL NOT BE PERMITTED TO RUN. NWMRA ALSO HAS THE RIGHT TO CHANGE ANY RULE OR MAKE CHANGES TO THE RULES AT ANY TIME.
 
POINTS & SANCTIONING 
 
Memberships to be sanctioned will be $30.00 payable at any time in the season but points only accumulate from time of paid membership. Points will be for 1st thru 10th place, 10 to 1 respectively. There will also be a point for each attempted pass. If you complete the pass but take longer than our computer allows, we will assess a time of 2 minutes for that pass (you will still be eligible for placement and points). Points are for the truck and driver (no substitute drivers to accumulate points). You may sanction more than 1 truck, but you must pay $25.00 per truck.
 
 REGISTRATION FEES
 
Street Stock, Super Stock, Modified, and Womens:
$15.00 Sanctioned
$20.00 Non-Sanctioned
 
Mod II and Unlimited:
$25.00 Sanctioned
$30.00 Non-Sanctioned
 
 TECH RULES
 
ANY RULE PERTAINING TO BUILD-UP NOT COVERED SHALL BE CONCIDERED ILLEGAL. OMISSION OF ANY POINT NOT COVERED IN THESE RULES DOES NOT IMPLY CONSENT.
 
 CONTACTS
 
President
Jim Kretzschmar (715) 274-2490
 
Secretary
Louise Kretzschmar (715) 274-2490
 
Tech Crew
Dusty Barland (906) 364-1988
Shane Campi (715) 769-3133
Keith Tippett (906) 364-1734 
STREET STOCK 
 
1.    Stock tires 40" maximum tires D.O.T. approved.
2.    Any lift kits allowed.
3.    Headers allowed with max 1 7/8 size tubes.
4.    Mufflers must be bell shape, no cutting or glasspack's.
5.    Any external modification allowed: any single carbureted             intake, carburetor, and ignition.
6.    Factory fuel injection allowed.
7.    Any factory production heads. No aluminum heads.
8.    Engine block and lower end must be stock for year, make, and model.
9.      Can check by 8th V.I.N. number.
10.    Engine may have maximum overbore of .060. Piston and piston     height to be stock configuration, Deck height to piston must remain stock
11.    No porting, polishing, or grinding of any kind on heads. Maximum valve diameter must be stock according to casting numbers on stock heads.
12.    Pistons to be flat top or dish according to year, model, and make. 13.    No domed pistons.
14.    Any radiator may be used in stock position only. No cutting of hoods.
15.    Converters and clutches must be stock for vehicle.
16.    Gas only, no nitrous or alcohol.
17.    All trucks must have brakes capable of stopping truck.
18.    Non-removable hard top or roll bars required.
19.    Wood flat beds will be permitted by techs decision.
20.    Engine must remain in stock position.
21.    Engine must pull of vacuum at 900 RPM. Can and will be checked at random. If fail bump a class.
22.    No axle swaps.
23.    Single link 2 point non-adjustable traction bar.
24.    Leaf springs must be stock configuration.
25.    All trucks must have a working tachometer
26.    Front bumper required.
 
 SUPER STOCK

1.    38" maximum tires D.O.T. approved.
2.    Must have same engine make as vehicle. In-family engine swaps allowed.
3.     No super cobra jets or hemi's etc.
4.     Body must match frame. Street legal D.O.T. approved body.
5.     Any lift kits, dual shocks, no muffler needed. Any header downward maximum 1 7/8 diameter, no uprights.
6.     Any single carbureted intake and carburetor may be used.
7.     No polishing of crankshafts, or rods. Resizing journal allowed. No strokers. Crankshafts may be balanced. No knifing cranks.
8.     Any flat top piston. Stock stroke with .060 maximum overbore. No dome pistons. Stock block may be decked. Pistons may not protrude out of block on top dead center.
9.     No angle plug heads. Screw in studs allowed. Pinning studs on heads allowed. Guide plates allowed. Lifters valley pans and rocker poly locks allowed. Stock diameter valve springs only. Additional springs allowed.
10.     Hydraulic or solid cams only. Any rocker allowed.
11.     No after market heads. Heads may be milled, ported, and polished.
12.     Any fan or water pump or oil pumps allowed. Must have radiator in stock position.
13.     Any wet sump oil pans allowed. No dry sumps.
14.     No exhaust in driver compartment.
15.     Engine mounted solid or chained down.
16.     Any transmission and transfer case (automotive type).
17.     Axle changes to Dana 70 maximum allowed must be automotive type drive axle. No final drives.
18.     Non-removable hard top or roll bar required.   
19.     Pump gas only. No nitrous or alcohol.
20.     Drive shaft loops required on each drive shaft.
21.     2 link 4 point adjustable traction bars.

 WOMEN'S SUPER STOCK
 
1.    Only street stock and super stock trucks allowed.
2.    Same rules apply as SUPER STOCK class.

MODIFIED 

 
1.    Any D.O.T. tires allowed, no cutting or grooving
2.    No aluminum engine blocks
3.    Engine swaps allowed
4.    Engine may be moved so harmonic balancer is centered above front axle tube
5.    Single or multiple carburetors allowed
6.    SFI harmonic balancer required, or 360 degree cover
7.    4" Body lift maximum
8.    Body swaps, single layer race bodies, and fiberglass OEM style parts allowed
9.    Driver cockpit required
10.    If any OEM interior metal has been altered, a frame mounted 6-point cage is required
11.    Driver must sit in stock location
12.    Exterior body must appear dimensionally correct for the factory vehicle body
13.    Any missing windshield- 4 point roll cage mandatory
14.    Must have OEM unmodified frame
15.    Wheelbase must appear to match chassis, body, and suspension
16.    Traction bars allowed -3 or 4 link suspension allowed
17.    Leaf spring and live axles allowed front and rear
18.    Any suspension allowed, front or rear
19.    Gasoline, diesel, or alcohol
20.    No performance-altering additives allowed
21.    Upper cylinder lubricants allowed
22.    Nitrous Oxide NOT allowed
23.    Open headers allowed up or down
 
MODIFIED II 
 
1.    No size limit on tires.
2.    Not paddle or bar tires allowed. 
3.    D.O.T. cut tires allowed.
4.    Headers must go up, down, or back.
5.    NOS and blowers allowed.
6.    Tranny shield or blanket and flywheel scatter shield is Mandatory on vehicles running alcohol, NOS and/or Blowers.
7.    An SFI damper or 360 degree shield is mandatory Minimum of 1/8 inch steel or 1/4 inch aluminum on all vehicles Running alcohol. NOS and/or blowers.
8.    Each drive shaft must have a minimum of 2 loops. If the shaft is no longer than 24", one center loop Is ok. Loops must be 6" minimum and 12" maximum From the u-joint. There must also be a 360 degree Shield on all u-joints made of 1/8 steel or 1/4 inch Aluminum.
9.      Any body goes as long as it is safe.
10.    Must have roll bars deemed safe by Tech.
11.     Any frames allowed.
12.     For vehicles running alcohol, NOS, and/or blowers, a fire suit and gloves are mandatory. Must be SFI approved. Mask and shoes recommended.
 
 UNLIMITED
 
1.    Same rules apply as in MODIFIED II classes except any tire is allowed.