2026 602 Modified Rules

DOWNLOAD PDF VERSION: SNMP – 2026 602 Modified Rules

24TH ANNUAL JOHN BLEWETT III MEMORIAL NORTH-SOUTH SHOOTOUT

In Memory of Charles Kepley

 

2026 602 MODIFIED RULES

 

Any safe race car built with Industry-accepted Touring Modified Specifications with a wheelbase between 104” and 110” is permitted.

 

Listed within the specifications below are exceptions or additions to Touring Modified Specifications that are permitted for competition.  If not specifically addressed, SNMP/NSS Officials will determine the approved usage allowed.

 

ENGINE REQUIREMENTS

  1. ONLY THE 602 GM CIRCLE TRACK CRATE ENGINE P/N 88958602 or   19258602 PERMITTED.
  2. ENGINE MUST BE STOCK EXCEPT FOR THE FOLLOWING.
    1. The only approved Crate Motor replacement parts are listed below. All other parts must be GM 602 Crate Motor parts.
      1. Rod replacement option: Eagle sir 5700bplw
      2. Scat rod replacement option: sca 25700p
      3. Pistons: p101azusa – std – 30 over
      4. Silvolite: 3470hc – std – 30 over
      5. Sealed power: h815dcp – std – 30 over
    2. Valve springs must be stock for 602 engines.
      1. The following aftermarket valve springs are permitted. PAC P/N 1210 x 16
    3. 602 Block may be bored up to .030” over.
    4. Sealed Power Pistons P/N H-815-DCP (std to .030) may be used.
    5. Hastings Rings P/N 2M-4860 (std to .030”) or equivalent, may be used.
    6. Clevite Rod Bearings P/N 663-P (std to .030”) may be used.
    7. Clevite Main Bearings P/N 909-P (std to .030”) may be used.
    8. Oil Pan may be changed to any 6 1⁄2” or 7” circle track style pan.
    9. Polylock rocker arm nuts will be permitted.
  3. Offset air cleaner may be used for distributor clearance.
  4. NO GAPLESS RINGS ALLOWED; rings must have .015” end gap minimum.
  5. GM Factory gaskets ONLY.
  6. Stock harmonic dampener only! 8″ is the stock 602 circumference.
  7. Oil pump must be stock. Melling P/N M-55 or M-155.

 

 

 

CARBURETOR

  1. NO MODIFICATIONS
  2. Only the Holley 650 cfm, Model 4150, P/N 0-80541-1 or P/N 0-80541-2 are permitted as manufactured.
  3. Only a single carburetor spacer plate of aluminum is permitted, with a maximum height of 1.00.” Maximum gasket thickness is .065”.

 

WEIGHT RULE

  1. A COMPETITOR USING A STOCK CRATE 602 (NO OVERBORE / GMPP INTAKE & PISTONS) may race at 2625 pounds total with a maximum of 56% left side weight.
  2. Engines not complying with this rule must weigh a minimum of 2650 lbs. with a max of 56% left side weight. Competitors using an OEM type 10-inch clutch receive a 25LB reduction in overall weight.

 

ACCESSORIES

  1. Except as provided below, cars and drivers will not be permitted to carry on board computers, automated electronic recording devices, electronically actuated devices, micro-controllers, processors, recording devices, electronic memory chips, traction control devices, even if inoperable or incomplete.
  2. Competitors will not be permitted to have or have had on their possession or in their car a device(s) designed specifically to enhance the traction capabilities of the car, even if inoperable or incomplete.

 

BODY

  1. Car must be neat.
  2. All body styles and configurations must meet the approval of the SNMP/NSS Officials.  Safety and visibility are the prime concern.
  3. Bodies must be installed on the frame in a manner acceptable to the Officials.
  4. The height of the rear quarter panel will be 36” maximum from the bottom of the rear spoiler to the ground.
  5. The height of the spoiler will be 44” maximum from the ground to the top of the spoiler.
  6. Bodies may not extend below the frame rails.
  7. Cars will not be allowed to compete with excessive body damage as determined by SNMP/NSS Officials.
  8. The top part of the hood is mandatory.
  9. Safety clips installed are required on both sides, front and rear.
  10. The hood must cover the cowl and top part of the radiator with openings only for the air cleaner and distributor.
  11. All cars must have rear wheel openings on the left and right side of no less than 12 inches, and no more than a 15-inch radius from the center of the rear axle.
  12. No belly pans permitted. A belly pan is defined as any object or material that alters the flow of air under the car as determined by Officials.
  13. The panel of the front nose piece may not extend past the rear edge of the harmonic balancer.
  14. A straight front windshield is permitted on the driver’s side. Curved style windshields are allowed.
    1. Maximum width of 24”
    2. Minimum 0.125” thickness
    3. Only Lexan is permitted.
  15. No interior spoilers, wings, or wind deflectors permitted. No double panels with any surface.
  16. “Blewett” Bars are required and must have two (2) vertical & one (1) horizontal – 1 3/4″ OD x .095” wall thickness seamless tubing.
  17. Roof made of Steel or Approved Fiberglass roof allowed. All SNMP/NSS approved roofs will be embedded with a serial number coinciding with manufacturer.
    1. (Example – Troyer #001, Spafco #001, number will be located on the inside right front corner.
  18. Any fiberglass roof without a serial number is subject to approval by Officials.
  19. Anti-Intrusion Roof Plate is mandatory
  20. Roof Height will be measured with the driver in the car. The overall height will be measured 6″ back from the leading edge along the centerline of the roof, minimum height of 40″. The rear of the roof at the highest point will be a maximum of 43″.
  21. NOTE: At maximum tire pressure of 14 lbs. on the left side tires. “B” pillars must not extend above the height of the bottom of the rear spoiler. Must be the same style and dimensions from side to side. Rear taillight panel must be enclosed from top of rear frame rail to bottom of the rear spoiler with a metal panel. 1/2″ Maximum above frame rail.
  22. No sail panels on the body will be allowed.

 

FRONT AIR DAM

  1. Approved air dam may be mounted to the front underside of the vehicles.
  2. An optional metal or vinyl front air dam must be mounted perpendicular to the ground and not more than three (3) inches behind the leading edge of the nose panel or outside the front frame rails.
  3. The front nose panel and air dam must not extend past the rear edge of the front bumper.
  4. The nose panel and/or air dam must maintain a minimum ground clearance of 2.00”.
  5. All support brackets must be mounted to the rear of the air dam.
  6. Horizontal or flat air deflectors must not extend past the outer edges of the front nose panel side walls.

 

GRILLE

  1. The metal grille air intake housing at the radiator must maintain a rectangular shape across the front of the nose with the opening covering a minimum of 165 square inches.
  2. Only a single layer of screen wire.
  3. Horizontal or flat air deflectors must not extend past the outer edge of the grille air intake housing.

 

BUMPERS / SIDE RAILS

  1. The bumpers, side rails and corner rails must be acceptable to Officials and meet the following minimum requirements:
  2. Front bumpers must be made of two (2) pieces of 1-1/2 inches minimum to 1-3/4 inches maximum round magnetic steel tubing four (4) inches to six (6) inches apart, mounted to the front frame rails, spindle height, with a minimum of four (4) vertical connectors.
  3. The maximum width of the front bumper must not exceed more than two (2) inches per side of the front frame rails.
  4. The maximum distance from the center of the front spindle to the front of the front bumper must not be less than 30 inches and not more than 30-1/2 inches.
  5. Rear bumpers must be made from an I-beam extruded from aluminum.
  6. The width, when measured across the rear of the vehicle, must be a minimum of 48 inches and a maximum of 50 inches and be mounted on the centerline of the rear sub-frame rails.
  7. The minimum I-beam size permitted will be 2-3/4 inches by four (4) inches by 3/16 inch thick.
  8. The bumper must be mounted at rear axle height.
  9. Holes and/or modifications that, in the judgment of Officials, have been made for weight reduction, will not be permitted.
  10. All vehicles must be equipped with rear corner rails and side rails.

BODY DIMENSIONS – LENGTH

  1. Doors: Minimum 72” Maximum 78” when measured from the center of rear axle housing forward to the front most part of the door.
  2. Quarter Panels: Minimum 34” maximum 42” when measured from the center of rear axle housing to the rear most part of the body.

 

BODY DIMENSIONS – WIDTH

  1. Doors: Minimum 43” Maximum 45” when measured beneath the car at the rocker panels, at the front of the doors and just in front of the rear wheels.
  2. Quarter Panels:
    1. Top: Minimum 49” Maximum 60” when measured across the body at the top rear      most part of the quarter panels.
    2. Bottom: Minimum 58” Maximum 60” when measured between the outer            edges of the rear quarter panels at rear bumper height.

 

Note: Exceptions to the above rules are all pre-2001 chassis cars which are not subject to dimensions listed above. These pre-2001 chassis are “grandfathered” due to the difference in frame width. An Exception will be reviewed by the Technical Director for approval.

 

CHASSIS

  1. All front sub-frame assemblies must maintain a minimum of a 30° angle from the side frame rails up to the top of the sub-frame.
  2. Floors must be completed in the driver’s compartment. The floor must be a minimum of 1/8″ steel.
  3. A steel firewall must separate the driver from fuel tank and engine compartments.
  4. The firewall separating the driver from the engine compartment must not be any further back than the lower area below the windshield opening.
  5. In front of the driver and behind the driver.
  6. The drive shaft must be covered.
  7. All firewalls must be sealed on top, bottom, and sides.
  8. Driver side Anti-Intrusion door plates are mandatory.
  9. All front bumpers must be of rounded type, not to extend outward beyond the edge of frame more than 2” on each side.
  10. Rear nerf-bars may extend outward beyond the edge of the tires a maximum of 2”.
  11. All nerf-bar ends must be capped, and edges rounded off.
  12. Bottom of front and rear bumpers must not be lower than 13” and not higher than 15’.
  13. Double side rails are mandatory and must extend outward to be flush with or up to 2.00” beyond the edge of tires.

 

FRAME HEIGHT

  1. NO MINIMUM FRAME HEIGHT

 

BRAKES

  1. Any brake combination may be used.
  2. After-market brakes allowed.
  3. No titanium or carbon fiber allowed.
  4. Conventional braking systems only.
  5. No enhancing devices or electronics in the braking system.
  6. Exception brake safety kill switch.
  7. Any brake pads.
  8. Brake bias control is allowed.
  9. Four-wheel hydraulic brake systems operational at all times are required.

 

SHOCKS

  1. Any shock/spring combination allowed, including coil binding and the use of bump stops.
  2. Shocks with external reservoirs are not allowed.

 

STEERING

  1. Any rack and pinion system allowed.

 

SUSPENSION

  1. All suspension systems, components, and parts must be acceptable to Officials.
  2. Unless otherwise authorized by Officials, non-ferrous suspension parts will not be permitted.
  3. Front spindles must be attached to the frame using two (2) tethers, per spindle. Tethers must meet SNMP/NSS specifications.
  4. Magnetic steel spindles only.
  5. Front suspension will be independent only.
  6. No straight axles.
  7. The front sway bar MUST be used for the purpose of anti-roll only.
  8. The front sway bar MUST rotate freely in its mounts.
  9. The movement of the front sway bar must not be prevented or restricted beyond that of the normal use of an anti-roll bar.
  10. Only magnetic steel front sway bars are permitted.
  11. There will be no oil filled hubs allowed.
  12. Wheel bearings must be tapered cylindrical (Timken Type) bearings.
  13. No ceramic bearings are allowed in the car.
  14. There will be no chassis adjustment controls in the car such as hydraulic weight jackers attached to the coil springs, sway bar etc.
  15. NO adjustments allowed in the driver’s compartment.
  16. NO electrical, pneumatic, hydraulic, remote control, or any other device that changes the handling characteristics or height of the car will be permitted.

 

DRIVE TRAIN

  1. The drive train/components must be acceptable to Officials and meet the following requirements.

 

TRANSMISSION

  1. Transmissions must meet the following requirements:
  2. Any other Tour Modified type transmissions must be approved by track officials.
  3. A standard production transmission, which is available through dealers.
  4. The only aftermarket transmissions allowed will be Jerico #2-SP two speed manual transmission and the Jerico #3-SP three speed manual transmission or Richmond part # RIC70200.
  5. No titanium or carbon fiber parts allowed.
  6. No ceramic type of roller bearings.
  7. No overdrive type transmissions allowed.
  8. Machining the bottom of the transmission case for clearance is permitted.
  9. A maximum of four (4) forward speeds.
  10. A forward and a reverse gear must be in working order.
  11. No automatic or semi-automatic transmission.
  12. No transmission will have a gear ratio between 1.00 and 1.15.
  13. The only high gear transmission ratio permitted will be 1.00:1.00
  14. Officials must approve all transmissions.

 

BELL HOUSING

  1. Only metallic bell housings allowed.
  2. Bell housing must be the same design as an OEM-type production type bell housing.
  3. The bottom of the bell housing may be cut off horizontally a max of one inch below the bottom of the transmission.
  4. Cutting on the sides of the bell housing above this cut will not be permitted.
  5. Holes and/or other modifications that, in the judgment of Officials, have been made with the intent of weight reduction, will not be permitted.
  6. The starter mounting position must remain on the right side.

 

CLUTCH

  1. Only mechanical foot pedal, cable or hydraulic operated clutches will be permitted.
  2. No Pneumatic assisted clutches permitted.
  3. The clutch assembly must be bolted to the flywheel located inside the bell housing.
  4. Multiple disc clutches will be permitted up to a maximum of three discs. The disc clutch housing assembly and cover must be made from aluminum or steel.
  5. The clutch cover must be a push type design.
  6. The minimum clutch disc diameter is 5-1/2 inches.
  7. Clutches must be a positive engagement design.
  8. Slider or slipper clutch designs are not permitted.
  9. Only solid magnetic steel discs and solid magnetic steel floater plates will be permitted.
  10. A multi-disc clutch is allowed.
  11. Clutches must have steel discs.
  12. The clutch, pressure plate and flywheel must be bolted to the end of the crankshaft
  13.  No ram couplers
  14.  No direct drives
  15. No carbon fiber or composite materials
  16. Minimum 5 1/2 “clutch. Pressure plates may be aluminum.
  17. No traction control allowed, operational or not. Disqualification for Event and Fine of all earned points for the season.

 

DRIVE SHAFT

  1. Magnetic steel drive shafts only. 2” minimum OD.
  2. The drive shaft, universal joints, and yolks must be magnetic steel and be similar in design to the standard production type.
  3. The drive shaft must be made of one-piece magnetic steel.
  4. Two 360-degree solid magnetic steel brackets, with no holes or slots, not less than 1 1/2 inches wide and 1⁄4 inch thick, must be placed around the drive shaft.
  5. The front bracket must be welded to the rear suspension cross member and the rear bracket must be welded or bolted, with a minimum of two minimum 3/8-inch diameter bolts on each side, to the horizontal tunnel bar.
  6. The drive shaft must be painted white.
  7. All cars must have driveshaft loops at the front and rear of the driveshaft positioned within 12.00”: of each U-joint.
  8. Loops must be steel plate ¼”  x 2.00 wide and be a full 360 x 2.00” wide and be a full 360 and will be inspected by officials.

 

FLYWHEEL

  1. Only a magnetic steel flywheel will be permitted.

 

REAR ENDS

  1. ANY STYLE REAR END IS LEGAL FOR COMPETITION
  2. ANY STYLE REAR SUSPENSION AND COMPONENTS MAY BE USED.
  3. FOR SAFETY PURPOSES: All trailing arms and brackets, and all linkages of any type must be acceptable to Officials.

 

TREAD WIDTH

  1. A maximum tread width of 82”, when measured from the outside of the wheel bead to the outside of the wheel bead.
  2. If the tread width is greater than 82” and less than 84” a 1 % weight penalty will require the car to compete with a maximum of 55% of left side weight.

 

WHEELS

  1. 15” x 10″ steel wheels only – 5 lugs – 5 X 5 or wide 5 hubs allowed.
  2. Wheels are permitted ANY offset.
  3. All 4 wheels must be the same width.
  4. No bleeder valves permitted.
  5. At least 1-1/2 to 2 threads must be visible outside the lug nut on all steel wheel studs and lugs.

 

ENGINE COOLING SYSTEM

  1. The engine cooling system/components must be acceptable to Officials and meet the minimum requirements set forth in the rule book.
  2. Icing, freon type chemicals or refrigerants must not be used in or near the engine compartment.
  3. Additional water lines must not be added to or from the water pump or intake manifold to the cylinder heads or engine block.
  4. Portable cooling machines or cooling devices will not be permitted.
  5. Heating pads, blankets or any other heating devices will not be permitted for warming the cooling system.

 

FAN

  1. Engine-driven fans, if used, must be operational and belt driven from the crankshaft. Free spin or clutch type fans will not be permitted.
  2. Electric engine cooling fans are optional. When an electric fan is used, it must be mounted parallel to the radiator.
  3. If an engine-driven fan is used, it must be a standard magnetic steel or plastic fan with a min of four (4) blades. Removal of the fan blades or fan belt will not be permitted.

 

RADIATOR

  1. The radiator must remain stock appearing and remain in standard position not to exceed two inches from vertical.
  2. Radiator dust or shaker screens will be permitted.
  3. Radiator installation must be acceptable to Officials.
  4. Car must have a radiator overflow can.
  5. The radiator overflow tube may be in the rear cowl area ahead of the windshield directed rearward or may be relocated to the rear of the car.
  6. A pressurized cooling system or radiator overflow hose will exit out of the right rear tail cover with a 45- degree fitting at the end of the hose pointing upward is required.
  7. Purposeful disconnection or redirection of overflow, any fluid loss may result in disqualification.
  8. A non-antifreeze coolant type or water is permitted. Water is recommended.

 

WATER PUMP

  1. Only aluminum or cast steel mechanical water pumps in the stock location, turning in the same direction of the crankshaft rotation, will be permitted.
  2. Water pump impellers may be altered.
  3. Coolant flow must be in the same direction as the approved production engine.
  4. Only standard production V-type or flat type V-ribbed belts and pulleys will be permitted.

 

ELECTRICAL SYSTEM SPECIFICATIONS

  1. All ignition systems must be acceptable to Officials.
  2. Electronic distributors will be permitted. All electronic distributors must be stock type housings, equipped with a magnetic pick up, gear driven, and mounted in the stock location.
  3. Single or dual point camshaft driven distributors will be permitted.
  4. Modifications to ignition amplifier boxes will not be permitted. Officials may use ignition amplifier boxes provided by respective manufacturers as a guide in determining whether modifications have been made.
  5. Computerized, multi coil, dual electronic firing module amplifier box, or crank trigger systems will not be permitted. Magnetos will not be permitted.
  6. Adjustable timing controls will not be permitted.
  7. Retard or delay devices will not be permitted.
  8. Accessories to regulate the power supply will not be permitted.
  9. A Maximum 6200 RPM Chip required
  10. The ignition amplifier box must have a six-pin female connector attached to its output leads of the Packard Electric type (MSD part #8170) to facilitate manual operation and testing of the ignition components during inspection.
  11. The wiring sequence must be the same as the General Motors ignition amplifier.
  12. A heavy red wire (positive to the battery) and a heavy black wire (negative to the ground) will be permitted. Any other wires will not be permitted to enter or exit the amplifier box.
  13. All ignition wiring harnesses, switches, and connectors must be acceptable to Officials. All wiring must be point to point and each wiring connection must be easily traceable and removable from the car for inspection purposes. Ignition system wiring should remain viable and accessible. Taping wires together, heat shrink wrap, and / or banded wire looms should not be used.
  14. Officials may, at their discretion, inspect, test, and / or destructively test ignition system components including ignition amplifier boxes, tachometers, distributors, etc.
  15. All connectors must allow for the application of a sealing device applied by Officials.
  16. No enhancing devices or electronics in the braking system. Exception brake safety kill switch.

 

ALTERNATOR

  1. The alternator system when used must be mounted on the front of the engine in the standard location with the center of the alternator higher than the center of the water pump and must not exceed 14.9 volts of output.

 

BATTERY

  1. The battery must be located between frame rails, between front and rear tires. Only one standard 12 Volt battery not to exceed 13.5 volts.
  2. No accessories to regulate power will be permitted.
  3. Battery is not permitted in the driver’s compartment and must be securely fastened down.
  4. Positive terminal covered.

 

SPARK PLUGS

  1. Any make or brand of spark plug may be used.

STARTER

  1. The self-starter must be in working order and may be forward or rear mounted. Only OEM type production starters will be permitted.
  2. After the race is underway, cars may be started by hand pushing in the pit area only but under no circumstances is any car permitted to be rolled onto the racetrack from the pit area during race.

 

SWITCH LOCATIONS

  1. All electrical switches must be operable and located within reach of the driver.
  2. The labeled on / off rotary type master switch with “on” being in the clockwise direction, must be located at or on the front of the dash panel in the center.
  3. The on / off switch must be wired to the battery cable in a manner that would cut off all electrical power in the car.

 

ENGINE LUBRICATION

  1. Any oil is permissible.
  2. Combustion enhancing additives are not permitted.
  3. Dry sump or air over systems are not permitted.
  4. Oil drain lines will not be permitted.
  5. Inside valve cover oiling systems will not be permitted.

 

HEADERS

  1. ANY type of steel headers is permitted.

 

INTAKES

  1. GM P/N 12366573 or Edelbrock P/N 7116 may be used.
  2. NO CUTTING, PORTING OR POLISHING OF ANY KIND.

 

FUEL

  1. SUNOCO Race Fuel is the “Official Fuel” of SNMP/NSS.
  2. The Competitors are responsible for any and all fuel purchased in bulk and must pass a fuel specification inspection.
  3. The driver will be required to purchase a minimum of 5 gallons of SUNOCO Racing fuel for this Event.
  4. SNMP/NSS has the right to sample a competitor’s fuel at any time during the event. Samples will be impounded for observation and/or testing by SNMP/NSS or an outside laboratory.
  5. Fuel samples will be tested to the manufacturer’s specification.
  6. Officials will use a sample of the actual fuel provided at the track by the fuel supplier to determine whether the fuel used by a competitor conforms to the specifications in the rulebook.
  7. Any blending and/or mixing of fuels either of or not of the approved fuels are not permitted.
  8. No MTBE, ethers, alcohols, ethanol’s, nitrogen, nitro compounds, performance additives or other oxygenates may be blended or introduced into the inductions or fuel supply, either at the fuel cell or upstream in the fuel system.

 

FUEL CELL

  1. The use of a manufactured fuel cell acceptable to Officials must be used.
  2. Maximum of 22-gal fuel cell required. Fuel cell must be inside the body. Bladder age, maximum 5 years from the date of manufacture. No plastic fuel cells. Fuel cell must be centered with the driveline of the car. The bladder must have a rollover check valve in the fill plate. Fuel Cell Protector bars must have round corners. Fuel Cell height from the ground a minimum 5”.
  3. A fuel vent flap is recommended for all cars.
  4. Fuel lines are not permitted within the driver’s compartment, routing must be acceptable to Speedway Officials.
  5. Fuel cells / tanks must be vented to the outside of the body through the rear panel.
  6. Fuel shut off valves, marked OFF and ON, must be in reach of the driver and accessible to safety crews. A fuel shut off indicator with an arrow on the passenger side window ledge required. Arrow to line up with the shut off valve.
  7. Steel or aluminum fuel filters only.
  8. No electric fuel pumps.

 

SAFETY REQUIREMENTS

  1. IT IS THE RESPONSIBILITY OF THE DRIVER, NOT SNMP/NSS OFFICIALS OR REPRESENTATIVES, THE PROMOTER OR TRACK REPRESENTATIVES, TO ENSURE THAT HIS/HER SAFETY DEVICES / SYSTEMS ARE APPROVED, CORRECTLY INSTALLED, MAINTAINED, PROPERLY USED.
  2. Cars must have a steel roll cage.
  3. Minimum of 1.75” OD x .090” tubing.
  4. Four horizontal bars are mandatory on the driver’s side door, three on the passenger’s side.
  5. The roll cage must be welded securely to the frame.
  6. Threaded pipe, pipe fittings, and lap weld pipe are not permitted.
  7. The front and rear firewalls, and the drive shaft tunnel must be fully enclosed. Made of magnetic steel with a .024” minimum thickness.

 

PERSONAL PROTECTION EQUIPMENT

  1. A fire suit is mandatory. It must be Nomex material, double-layer, clean, and in good condition.
  2. SFI rated fire retardant gloves and shoes required at all times while in the car.
  3. A full-face helmet is mandatory and must be a minimum Snell SA 2005.
  4. Hans, Hutchins II, Hutchins Hybrid or NecksGen devices are mandatory Head and Neck Restraints and must be SFI approved. Head and Neck Restraints are Highly Suggested EVERYTIME a driver is on the racetrack.
  5. A fire extinguisher in working order and mounted within reach of the driver is mandatory. On board fire suppression systems are recommended.
  6. Two throttle springs are mandatory and subject to Track official’s approval.
  7. Toe strap on foot throttle is mandatory.
  8. Aluminum racing seat required. The seat will be bolted to frame with six (6) 3/8” bolts with a minimum of 1.00” OD flat washers .085” minimum thickness 3/8” USS Lawson “Tuff Torq”, or equivalent.
  9. Four (4) bolts through the floor of the seat and two (2) on though back seat frames must be mounted securely to the roll cage.
  10. Right side headrest mandatory.
  11. Choice of an approved left side headrest, or auxiliary net mandatory.
  12. Must have a minimum of a quick release 5-point seat belt with a 3.00” minimum width. Seat belts must be securely mounted to the frame or roll cage. Belts must not be more than three (3) years old. No visible wear or tears allowed.
  13. All bars in reach of the driver must be padded with a fire-resistant padding. No foam rubber padding permitted.
  14. Must pass SNMP/NSSs Technical Inspection A window net is mandatory and must be web or mesh style. The net must be secured to the roll cage with two steel rods or bars, with the top being of quick release design and must fall when opened. The latch must be forward and driver accessible. Officials must approve the condition of the window net and release.
  15. Steering wheel centers must be padded. Steering wheel stop is mandatory on the steering shaft below the top mounting point. Wheel quick approved release hub is mandatory.
  16. All add-on weights must be securely mounted outside the driver’s compartment with a minimum of two grade 5 3/8” bolts. All add-on weight(s) must be painted white with the car number on them. If add-on weight comes off during any race, the weight may not be added back to the car to make minimum weight unless approved by Officials. No add-on weight will be below the bottom of the frame rails.
  17. Mirror allowed in the middle of the car or in front of the driver. 4” Peep mirrors allowed.

 

RADIOS

  1. Two-way radios between the Driver, Crew Chief and Spotter with (1) scanner and/or radio used to monitor the Race Control, per team are MANDATORY.
  2. Race control frequency is 451.6625

 

TIRES

  1. This will be a four (4) new F45* tire event. These must be purchased from the track
  2. Random Scanning of inventory or testing by track official anytime.
  3. Use of a non-assigned tire in qualifying or race will result in disqualification.
  4. The car must start the race with the tires which were used in qualifying.
  5. Protest Rule: A car owner within 10 minutes of completing the race and finishing within 5 positions behind another car owner must submit in writing and pay $100 cash only, non-refundable fee for a tire inspection. The Protestor may select the tire to be inspected. The Protestor tires are subject to Inspection.

 

PROTEST PROCEDURES

  1. Any protest must be submitted in writing to the Official along with the appropriate fee, cash only, within 10 minutes of the race completion.
  2. If the car in question is found legal, the Speedway will keep half the protest money and return half to the legal car.
  3. If a car is found ILLEGAL, money will be split 50/50 with the Track and protester.
  4. Protest Fee Schedule:
    1. Engine Components
      1. Intake–$300.00
      2. Heads–$575.00
      3. Camshaft — $1,200
      4. Bore and Stroke–$650.00
      5. Crankshaft Rods and Pistons–$1,500.00
      6. All other components subject to what they are. Price will be given at the time the protest paperwork is handed in.
      7. DYNO protest-$1,300.
    2. Tires–$100
  5. During any protest, as the engine is disassembled, each part is subject to inspection by Track officials.
  6. If any part inspected before officials reach the protested part is found illegal, the tear down will cease, and the engine will be declared illegal. The protest money will be returned to the protester less the $150 paid to track officials.
  7. Track officials reserve the right to inspect a car/component within one hour after the completion of the race.
  8. Protesters must finish within 5 finishing positions of the protested car/driver to file a protest. Teams/drivers can only protest cars that finished in front of them. Protests cannot go backward through the field. A protest can only be done if the driver/team is going to post-race technical inspection, with the exception of a tire protest, which can happen for the top 15.
  9. If a protested competitor refuses to comply with the protest, they will be immediately disqualified from the event and receive no points or money.
  10. SNMP/NSS reserves the right to claim any competitor’s engine at any time. A Competitor must remove the engine, or they will be disqualified from the event and receive no points or money.

 

Any interpretation or deviation of these rules and procedures is left to the discretion of SNMP and NSS Officials, whose decisions are final.

 

NOTE: If you are unsure of any rule, whether contained within these rules or not, it is the responsibility of the driver to question this prior to any competition. You may contact the SNMP/NSSs Technical Director for clarity. It is the responsibility of the Driver, NOT the Technical Director or Tour Promoter or Track Representative, to ensure that their race car meets the specifications noted prior to entering any Event.

 

Last Updated: 9/23/26