Class Name: New Mexico Micro Sprints

  1. There will be only one class of race car recognized by NMMS. Class will be referred to by most tracks as the “Mini Sprints.”
  2. That one class will contain two different classifications of cars. Stock and Multi as defined in car specifications section.
  3. Minimum age for all drivers is an attained age of 12. Drivers under the attained age of 14 will only be allowed to compete in a “stock” car.
  4. Each event will be noted wing or non-wing on schedule prior to race season beginning or as track determines. Subject to changes.
  5. Both stock and multi cars must meet the same chassis and safety specifications.

 

 

2. Car Specifications

 

  1. Seats Belts and Restraints: All cars must be equipped with 3” 5-point restraint belts with manufacturer’s date stamp of no older than 3 years. Seat belts must be securely attached to the car and used at all times. Metal to metal latches only, 5-point seat belts, shoulder and sub straps are required. Arm restraints are mandatory and must be adequately adjusted to keep drivers hands below the top of the roll cage.
  2. Helmets and Neck Restraints: must be full head coverage competition type and one of the two latest SNELL approvals and be SNELL SA rated. Neck braces or head and neck restraints, and SFI rated gloves are mandatory.
  3. Racing Suits and Shoes: All drivers must wear fireproof suit (2 layer suit or single layer suit w/ Nomex underwear), and SFI rated shoes. All racing suits and shoes need to be in good condition.

 

3. Chassis

 

  1. Chassis: Roll cage shall be a minimum of 1 ¼” .065 wall thickness chrome moly or .083 mild steel. The front section of the cage shall be no further back than the steering wheel. Roll cages shall have sufficient fore and aft bracing to support the weight of the car and driver in case of an upset. Cage shall have gussets at the intersecting bars to the uprights. Bends must have at least 3” radius. No square or pointed corners allowed. Roll cage must be a minimum of 3” above the driver’s helmet. It is mandatory to install a cross bar behind the seat to support the shoulder harness.
  2. Bumpers and Nerfs: Car must have bumper extending beyond the front and rear tires. Nothing may extend beyond a tangent line from the outside edge of the tires or wheels which ever is widest. No sharp corners or design as to hook or damage other cars. All cars must be equipped with nerfing bars. Nerfing bars must extend to inside edge of tires but not beyond the outside of tires.
  3. Bodies: All cars must have complete bodies resembling a traditional midget / mini sprint car. No roadster type bodies. Tail sections must be in place at all times car is on racetrack. There must be a firewall between driver and engine made of 24-gage steel or .0625 aluminum. Body of car must be made of aluminum, metal, fiberglass, or high impact plastic. No rear view mirrors. The only part of the car to dismantle for driver to enter or exit is a quick release steering wheel. Mudguards and sun visors can be no more than 10” from top of roll cage. All mechanically operated devises must be mounted below driver’s shoulders.
  4. Ballast: All material used for ballast must be bolted or permanently attached to the car. No loose ballast will be allowed. They must be painted white with car number written on ballast in two locations. Loss of any bolt-on weight during competition will disqualify the individual from that event.
  5. Electrics and Electronics: On/Off switches must be at top of dash or on steering wheel. On/Off switch must be functional and labeled on either end of switch.  No radio communication is allowed with car or driver.
  6. Battery: All wet cell batteries securely mounted in the cockpit area must be covered and vented outside the cockpit area.
  7. Fuel: Gasoline, ethanol, or methanol may be used. No nitrating or oxygen inducing chemicals allowed. No nitro, nitrous oxide, etc.
  8. Suspension: Width is 50” maximum, 32” minimum center to center of tires. Wheelbase is 70” maximum, 50” minimum center of front axle to center of rear axle. A solid or tubular tie rod must connect front wheels. Some type of locking device, except wheel nuts, must secure all suspension bolts. Rear wheel drive only is allowed.
  9. Shocks: Any shock absorbers are allowed.
  10. Brakes: Brakes will be of sufficient strength to slide rear wheels while the car is in motion at any giving time.
  11. Tires and Wheels: Tread width maximum 50 inches center of left rear to center of right rear. Tires compound is at the discretion of each driver unless stated differently at track. Wheels must be held on with 4 or more standard lug nuts or knock off hubs. Cutting or siping of tires are at the discretion of each driver.
  12. Chain Guards: Chain guards are required at all times to be covering the chain. Chain guards will be made of .090 aluminum or its equivalent. Chain guards will on top of the chain from front sprocket to rear of cockpit opening. Driver must not be able to touch chain or sprocket.
  13. Wings: Wings will have a maximum center section area of 16 sq ft, left sideboard and right sideboard maximum 54”. Nose wing can be 4 square ft  maximum.
  14. Numbers: All cars must have legible numbers in contrasting colors on both sides of tail and on the nose. Minimum on the nose is 8”, and 10” on the tail tank. Numbers are also required on both sides of top wing with a minimum height of 10” and on topside facing outward.
  15. All cars and drivers will comply with the rules above and rules implied by the track. If a stricter rule is in force at any racing facility the stricter rule applies.

 

 

4. Engine Specifications

 

Stock
  1. Car and driver must weigh a minimum of 750lbs immediately following the completion of both their heat race and the main event.
  2. Engine 600cc 4 cylinder 4 stroke as comes on a stock production bike for public sale in the U.S.A. Except as noted, all internal engine parts must remain stock with no modifications, metal removal, or blueprinting.  External engine surfaces may be modified only if needed to mount engine inside chassis.  Valve seat inserts may be reworked. Valve springs may be shimmed with standard or aftermarket shims. Cylinder head combustion chambers may be cleaned by bead blasting with valves seated in place. Cylinder head gaskets may be replaced only with original equipment manufacturer’s stock parts (All 3 layers of the head gasket must be used). All other gaskets may be replaced with duplicate aftermarket parts. Light cleaning of gasket surfaces with steel wool, Scotch-Brite, etc. is allowed.
  3. Transmission gears may be shimmed only for the purpose of proper engagement. Standard or aftermarket shims may be utilized. All transmission gears must remain in engine and remain functioning.
  4. Aftermarket cam chain tensioner allowed for safety of motor.
  5. Fuel injection engines may run carburetors. Injected with power commander (or other fuel mapping device) allowed gas or alcohol. No timing modules allowed. Fuel injection engines running carburetors may change all fuel metering devices to tune fuel curve, Billet intake boots allowed.
  6. Modification of oil pan & pick up allowed or aftermarket ok.
  7. Modification to thermostat cover allowed or aftermarket ok.
  8. Modifications to water pump cover allowed or aftermarket ok.
  9. Any air box allowed includes aftermarket washable replacement air filter. CDI box must remain stock appearing, power commander allowed on fuel injection models only.  No current year production engines at all.
  10. Any 600cc carburetors allowed.
  11. Wing slider/adjuster allowed. No other cockpit adjustable devices allowed.
  12. No R6R or Honda RR motors allowed.

 

Multi

 

A.     Car and driver must weigh 825lbs immediately following their heat race and main events.

  1. Engine 600cc 4 cylinder 4 stroke available on a stock production bike for public sale in the U.S.A. No R6R or Honda RR motors allowed. No current year production engines at all
  2. Internal engine modifications allowed.

B.     Transmissions can be modified

C.     Any style carburetor or injection system allowed.

D.     640cc maximum displacement

E.      No Nitrous, turbo or superchargers permitted.

F.      Cockpit adjustments allowed.

 

 

Tech Procedures

General

 

1.      The Tech Director will enforce the NMMS safety rules as established and as foreseen. This is for the safety of all our drivers. He has complete authority to tech a car as many times deemed necessary in order for it to be in compliance with the rules.

2.      The Tech Director has the authority to grant short-term extensions on a case-by-case scenario.

3.      A Tech sheet will be written for every car that races with our club. It will have stock or modified, and all tech information. It will need to be signed by the car owner, before being allowed to race.

4.      Failure to comply will disqualify you from racing 2 races and until car is teched and rated safe and in compliance with the rules.

5.      Please remember these rules are for everyone safety.

6.      The board will back up all tech decisions and if not complied with then the Tech Director has the authority to disqualify you from racing due to safety concerns. Tracks will have this information available to them if you refuse to comply.

7.      Tech disputes will be handled at a later date not during or after the race, with the car owner, Tech Director and Board of Directors.

 

Weight

 

1.      Stock cars must weigh a minimum 750lbs at the end of a heat race or main event, including driver.

2.      Modified/Multi cars must weigh minimum 825 lbs at the end of a heat race or main, including driver.

3.      All cars will be weighed immediately after both the heat and main event. It is recommended that all cars weigh before races to familiarize yourself with track specific scales.

4.      One re-weigh after initial weigh allowed without leaving or touching car for verification.

5.      Cars that do not weigh or do not make weight will be disqualified and will lose all points for that race night.

6.      Car and driver must continue off of racing surface directly to scale area before returning to pit area.

7.      Only car, driver, tech director, and scale workers will be allowed in scaling area.

 

Protest

 

1.      Protest will be in writing, no later than 30 minutes of the end of our night’s main by a driver that starts the main and can remain anonymous (except to the board).

2.      Engine protests will be addressed that night immediately after receiving the protest in writing

 and $200 protest fee; cash, money order or certified check only.

A.     Owner with Tech and Board present will pull out engine. Engines only will be impounded     until teched by a teardown facility.

B.     If engine is found legal: $100 to teardown facility and $100 to car protested.

C.     If engine is found illegal: $200 protest fee goes to protester and owner is fined $500 ($400           goes to club, $100 goes to teardown facility). Driver loses all points up to that race and is not allowed to race until fine is paid.

3.      Non-engine protests will be addressed after the race with the board members.

4.      Refusal to comply with protest will be considered a violation of the Protest Rule and car

5.      owner will be fined $500, that nights driver will lose all points of the season & both will

            not be allowed to race until fine is paid. All monies will go to the club.