HOMETOWN MUD RACERS ASSOCIATION
2002 RULE BOOK
All classes will be subject to the following restrictions:
No nitro methane or blowers allowed (Open and Grudge class exempt, see class rules)
Nitrous Oxide allowed in Open and Pro-Modified class only
Single turbo on 4-cylinder in 2WD okay
Must be naturally aspirated or FACTORY fuel injected (Open and Pro-Modified exempt
See class rules for Specific Limitations)
Single carburetor (Open and Pro-Modified and 4-cylinder exempt)
INSPECTIONS AND GENERAL
SAFETY REQUIREMENTS:
1: All vehicles will be inspected for safe operation and safety equipment at each race. The class in which you race will be determined in part by the number of performance enhancing items, tire size, and vehicle style. (Cut down bodies, frame, engine placement etc.) A one-race leniency will be given to allow for changes to be made so you can fit the class you want to race in, at the discretion of the race director and HMRA committee. Vehicles may bump up to a higher class, but safety requirements need not be met for the higher class, unless altercations are made to the vehicle. (Tires are exempt)
HMRA inspectors reserve the right to re-inspect any vehicle at anytime to ensure safety and fair play.
2: Vehicle inspections will be done by the representative of your class. First time racers and representatives will be inspected by HMRA’s Head Inspector. All questions, concerns and disputes regarding the application of rules will be subject to the Head Inspector’s and/or HMRA Committee’s discretion. This decision is FINAL.
3: All vehicles must have operable brakes, throttle returns and an ignition shut off. Helmets and seat belts are required for driver and any passengers. Your cooperation and honesty in dealing with the inspections is greatly appreciated. Foul or Abusive Language will NOT be tolerated. Nor will disrespect to other racers, race officials or spectators. Drivers are responsible for their own actions as well as the actions of their pit crews.
4: Roll cages (not bars) and 4-point harnesses are REQUIRED for 2WD, Modified, Pro-Modified and Open classes. Open top and structurally altered (cutting or weakening from OEM standards) vehicles must have a minimum of a 6-point cage, preferably an 8-point. Unaltered cabs OK but recommend a 4-point cage. All main support bars with welded joints above shoulder height must be gusseted to strengthened joints. We REQUIRE a 4-point harness and SUGGEST a roll cage in the Pro-Stock class.
5: All racing vehicles must have VISIBLE hookups on both front and rear to be used for pulling vehicle out of the pit. It is the driver’s responsibility to inform the track official in the proper hook up of their vehicle. Battery must be securely BOLTED in place. NO bungee cords. If the battery is in the driver’s compartment, It must also be enclosed in a non-conductive battery box. (Dry Cell batteries Excluded)
2WD, Modified, Pro-Modified, and Open class vehicles MUST
HAVE a fire extinguisher that is securely mounted within easy reach of the
driver and has a quick release latch. Recommended
in All Classes.
6: Minimum of 1 U-joint shield on each of the drive line and 1 drive line loop centered on drive shafts 24” in length. On longer drive shafts, at least 2 drive line loops are required (see diagram) U-joint, transmission, and flywheel shields are MANDATORY for any vehicle using a transbrake. (Super Stock and Grudge class excluded)
7: Drivers are responsible for the safe operating condition of their personal vehicle. All loose items should be removed from cab and bed of vehicle as ANYTHING falling out during the race will result in a disqualification. Check your vehicle closely before racing. Mechanical parts will not be included. However, parts that continue to break each race, will be considered a safety violation and could result in disqualification for that run as well as not being allowed to race until the problem is permanently corrected.
8: HMRA encourages participants to take every precaution to ensure a safe event for both the driver and spectators. Increased safety items could include goggles, gloves, fire-suit shields, extinguisher, neck braces, emergency shut off’s, 5-point or more harness etc.
9: RUN order
will be determined by a number draw AFTER the drives meeting. Each class will be instructed to go to a
designated area where Numbers for race order will be drawn. This number will be the RUN order per class. (1st, 2nd, etc) and
should be written in shoe polish on your vehicle. The RACE order will be determined by the RACE DIRECTOR at each
race.
10: Drivers are expected to go to the staging area and to be ready to race when the class directly before them is racing. Track officials will instruct drivers to line up in run order. (Number drawn) Drivers will have a TWO (2) minute grace period to be on the line and ready to race. If unable to meet this time frame, they will be disqualified for that run.
11: All vehicles
must come to a COMPLETE STOP after crossing the finish line. Failure to do so will result in disqualification
for that run. A RED LIGHT also
results in a disqualification for that run. A 5-mph speed limit in the pit and staging areas will
STRICTLY enforced. No burnout’s allowed. Failure to comply to the above will result in immediate dismissal from the race, with all monies forfeited.
12: The race course out-of-bounds will be marked. If the line judge declares you to be out of bounds, you will be considered out of bounds for that run. THE LINE JUDGES RULING STANDS. Runs will be timed by timing lights, stopwatches and /or measurements, determined by pit conditions. If you have not moved forward 2 feet in 5 seconds, the line judge will signal you to STOP YOUR VEHICLE, which you should do IMMEDIATELY. Do not resume until instructed to do so by the track official.
13: Tire size will be measured HORIZONTALLY with tape measure or a measuring device approved for accuracy by the race director or HMRA chairman.
14: ATV’s will be run on sand whenever applicable. In the mud otherwise.
15: In the case of 100% payback, It will be 1st=50%, 2nd=30%, 3rd=20%.
RACE DIRECTOR AND/OR HMRA COMMITTEE WILL HAVE FINAL SAY IN ALL ASPECTS OF RACING. (Racer eligibility, length of race, number of runs per class, end of race etc.) ALL RACERS WILL RESPECT THE DECISION OF THE RACE DIRECTOR.
All drivers and passengers MUST attend the drivers meeting which will be held approximately 1 hour before race time. Any protests or concerns should be handled at this meeting. Any participant may have their entry fee refunded at anytime prior to the end of the drivers meeting. Refunds for extreme circumstances will be considered on a per case basis and will be determined by the treasure and race director or chairman.
Snowmobile: Paid 100% payback if less than 10 racers. Class may be split
Depending on Number of entries
Must have tether kill switch
ATV Class: All ATV’s
Paid 100% payback if less than 10 racers
Must have tether kill switch
2 Wheel Drive: One turbo allowed on 4-cylinder motors.
No Big blocks (Ford motors determined by bell housing)
Must have firewall if engine in front of driver
Rear engine vehicles must have driver protection form harmonic
dampner.
Drive line loops, transmission, and flywheel shields, equivalent
to SFI required (see general rules #6)
4-Point or more harness required
Must have fire extinguisher in vehicle, easily accessible to driver
AND safety crew
Trans brakes are allowed in this class
Roll cage required on open top vehicles
Fire-suits, Head socks, Gloves, and Arm restraints are required
Grudge Class: Any street legal vehicle allowed
Must have current license and registration
No open exhaust, No Nitro Methane
2 race max per vehicle and racer combination
No points awarded
Prize money in this class only 1st$100.00, 2nd $75.00, 3rd $50.00
Super Stock: Complete full body vehicle: includes wipers, windows, and lights
Factory frame
No body swaps allowed
Engine size limited to 500 CID
Engine and axles must remain in stock position
No trans brakes
Headers must exit under vehicle, open exhaust Okay
DOT tires not to exceed 40” (no cuts)
3 bolt-ons allowed
Roll Cage required on open top vehicles
Motor swaps okay (must remain in same engine family available
in that year, make, and model) See motor chart enclosed for engine
family breakdown
Pro-Stock: Factory appearing full body vehicle
Factory frame
Trimming allowed for clearance, inner fenders required, must be
metal or OEM
Engine size limited to 530 CID
Engine and axles must remain in stock position
Engine and body swaps Okay
Trans brakes allowed (see general rules #6)
DOT tires not to exceed 44” (no cuts)
Must have all windows
4-point or greater harness
No performance suspensions allowed
No big blocks in mini-trucks
4 bolt-ons allowed
Roll Cage required on open top vehicles
Drive line loops and scatter shields required (see general rules #6)
Modified: Gutted vehicles allowed (must maintain factory appearance,
no narrowed or race bodies)
Engine size restricted to 600 CID
Firewall required
No tube frames
Factory style transfer case (no chain drives)
Drive line loops and shields required (see general rules #6)
Engines may be relocated (front of block no more than 4” from
rear of front axle tube)
All vehicles must have roll cage (see general rules #4)
4-point or greater harness
Must have scatter shields (see general rules#6)
Must have fire extinguisher in vehicle, easily accessible to driver
AND safety crew
5 bolt-ons allowed
DOT tires (no cuts)
Fire-suits required (Head socks, Gloves, and Arm restraints
recommended)
Must have well marked and easily accessible master shut-off
Pro Modified: Nitrous
and alcohol allowed in this class. NO BLOWERS or
TURBOS
Engine size restricted to 600 CID
Engine size leniency to 650 CID but restricted to single carb on
gas or Alcohol. Single carb on gas may run nitrous
Must have body around driver
Must have firewall if engine is located in front of driver
Rear engine vehicles must have driver protection from harmonic
dampner
Drive line loops and shields required (see general rules #6)
4-point or greater harness required
Driver must be shielded from chain drive systems
Scatter shields required (see general rules #6)
Must have fire extinguisher in vehicle, easily accessible to driver
AND safety crew
Recommend fire bottles/on-board extinguisher system
Fire-suit, Head sock, Gloves, and Arm restraints required
Rubber cuts and paddle tires allowed
Multiple carbs and direct injection allowed on 600 CID and under
Must have well marked and easily accessible master shut-off as
well as a tether kill switch
Aluminum aftermarket blocks allowed in this class only
2WD allowed small block only
Open Class: Paid 100% payback if less than 10 racers
No Trophies
Run what you Bring
Must have rubber tires
No Nitro Methane
Must have firewall if engine is located in front of driver
Rear engine vehicles must have driver protection from harmonic
dampner
Drive line loops and shields required (see general rules #6)
4-point or greater harness required
Driver must be shielded from chain drive system
Must have fire extinguisher in vehicle, easily accessible to driver
AND safety crew
Recommend fire bottles/on-board extinguisher system
Fire-suit, Head sock, Gloves, and Arm restraints required
Must have well marked and easily accessible master shut-off as
well as a tether kill switch
Headers
Carb/Holley Projection (includes fuel pump)
All aluminum intake manifolds, except factory stock OEM
Aftermarket performance ignition Or Racing ignition systems or
points conversion i.e. pertronix etc.
Ignition system defined as distributor, coil, and ignition module
(one or all equals one bolt-on) (all OEM electronic ignitions are
acceptable)
Aluminum and aftermarket heads
Aftermarket rear suspensions (3 and 4 Link)
When using a factory style leaf
spring suspension, it must
remain bolted solid on one end and
shackled on the other as
well as bolted solid to the axle
with center bolt.
Bushings, eyelets, and springs must
maintain and support
vehicle as designed by the Factory.
DISCLAIMER
All drivers and passengers must sign HMRA’s waiver before
racing is allowed.
The Hometown Mud Racers Association (HMRA)’s primary
interests are to enhance safety for spectators and participants and to promote
mud racing as a major motor sport.
Please note, however, that the HMRA MAKES NO REPRESENTATIONS OR EXPRESS
OR IMPLIED WARRANTEES THAT COMPLIANCE WITH THE RULES AS WRITTEN OR ANY
ADDENDUMS TO THOSE RULES WILL GUARANTEE AGAINST INJURY OR DEATH TO SPECTATORS,
PARTICIPANTS, OR DAMAGE TO PERSONAL PROPERTY.
These rules and regulations constitute the minimum standards for competition
and are intended as a guide for the conduct of the sport. The primary responsibility for safe
condition and operation of mud racing vehicles in competition rests with the
vehicle owner and driver. The promoter
assumes major responsibility for the operation of a safe mud pit. EVERYONE ASSOCIATED WITH THE SPORT MUST
SHARE THE TOTAL RESPONSIBILITY FOR THE MUD RACE’S PROGRESS. MUD RACING IS A HIGH RISK ACTIVITY. THINK SAFETY FIRST!!!!!!!!!!!!!!
POINTS
You must be a paid HMRA Member to earn points
10 points will be awarded for 1st, 9 for 2nd, 8 for 3rd, etc.
2 points will be awarded for the fastest time per class
2 points will be awarded for each HMRA race you participate in.
A Bonus 5 points will be awarded to racers who participate in ALL HMRA races.
You may substitute a driver in your vehicle or you may drive someone else’s vehicle ONE time during the season to maintain your points. You must let the registration people or timing people know of the substitution before you race.
The same vehicle may be entered NO MORE than TWO times in any specific class
Awards, Places, and Points are determined by the fastest two combined times or longed two combined runs, first. Then by the fastest single run or longest single run, if the vehicle is unable to make two complete runs due to disqualification.
Grudge class and Open class---no points awarded.
CHEVROLET
283 396 366
327 402
350 427
383 454
400 502
370 251M
429 400M
460 351M
260 332 406
289 352 410
302 360 427
351W 390 428
273 383 400
318 413 426
340 360 440
Buick, Pontiac, Cadillac, or Oldsmobile motors are not allowed in Super Stock class.
Diesel conversions revert to year, make, and model of
engines available that year.