Mud Class Rules
FOR ANY QUESTIONS OR DOUBTS OF LEGALITY, PLEASE CONTACT A TRACK OWNER OR TECH OFFICIAL. IF THE RULES DON'T SAY YOU CAN, IT MEANS YOU CAN'T, UNLESS AUTHORIZED BY TRACK OWNERS & TECH OFFICIALS.
STOCK CLASS
The definition of OEM/Stock' means No Modifications to Factory Parts or Factory Specifications'.
Safety Rules:
1. Safety is the First Priority. If You Do Not Pass the Safety Tech-In, You DO NOT RACE.
ALL SAFETY RULES apply - See GENERAL RULES. Roll Cage:
1. Must have a 4-Point Roll Cage in the Cab Welded to Frame. A 6-Point Roll Cage Is Recommended.
2. Must Be a Minimum of 1.5 Diameter with at Least .063 Wall Thickness Chrome Molly or Mild Steel Tubing.
3. NOTE: Roll Bars/Sport Bars in the Bed of the Vehicle Are Not Considered an Acceptable Substitute for a Roll Cage.
4. Roll Cage Must Include Front Windshield Straps. Windshield Straps Must Have at Least Two (2) Straps of Webbing Material Connected from the Top Roll Cage Bar to the Lower Bar Over the Dash to Keep the Windshield from Coming into the Cab in the Event of an Accident.
5. Doors May Be Trimmed for Roll Cage, But Not Gutted. "Gutted" Refers to Excessive Removal of the Interior Above and Beyond That Which Is Required for the Roll Cage And/Or Other Specific Rules Allow. 6. Doors Must Be Able to Securely Open & Close.
Body and Frame:
1. Original Body and Frame with No Modifications Other than Fender Cut-Outs.
2. Vehicles Must Have All Factory Sheet Metal, Except Tailgates.
3. NOTE: Excessive Body and Interior Modifications Moves Race Truck Up To Super Modified Class.
4. No Mixing of Engine and Body Style. Engine Type Must Be Offered By Manufacturer. (Ex. Ford Engine in Ford Chassis, Chevrolet Engine in Chevrolet Chassis, etc.)
5. Engines Over a 373 Cubic Inch Must Be in a ¾ or 1 Ton Long Wheel Base Vehicle with ¾ or 1 Ton Running Gear (Drivetrain, Axles, Springs, etc.)
6. Vehicles in the ½ Ton Category May Run ¾ or 1 Ton Running Gear, BUT This Does Not Qualify the Vehicle to Run Over a 373 Cubic Inch Limit Engine.
7. No Shortening or Lengthening of Frame Allowed.
Interior:
1. Driver's Seat Must Be Located on the Left Side Similar to Stock.
2. Dash May Be Removed.
3. Factory Firewall Mandatory and Cannot Be Repositioned.
4. Heater and Heater Ducts May Be Removed.
5. NOTE: Excessive Body and Interior Modifications Moves Race Truck Up To Super Modified Class.
6. Vehicle Is Required to Carry On-Board a Fully Charged, Mounted Fire Extinguisher of A, B, or C Dry Chemical Type, 2.5 Pounds Minimum Capacity with Gauge in Cab.
7. 4-Point SFI Harness Required for Driver & Passenger.
Bumpers:
1. Must Have Functional Front and Rear Bumpers.
2. Bumpers Must Be Capped Off Even and Not Stick Out Past the Side Body Panels or the Tires. No Protruding or Sharp Edges. No Pipe or Tubing Unclosed/Uncapped Allowed. 3. All Vehicles Must Have Tow Hooks Front and Rear.
Fuel Tanks/Cells:
1. Gas Tank May be Removed and Replaced with a Fuel Cell.
2. All Tanks/Cells Must Have Positive Locking or Screw Caps.
3. Fuel Tanks/Cells Must Be Fully Secured.
4. All Fuel Lines Must Be Isolated from Driver's Compartment.
Fuel:
1. Gasoline or Racing Fuel Only. No Additives. (Ex. Aniline, Benzoyl, Benzene, Toluene, Xylene, Propylene Oxide, etc.)
2. No Alcohol, Ether, Nitro Methane, Propylene Oxide, Nitrous Oxide, or Nitrous Devices ( Nitrous Plates, Nitrous Solenoids, etc.) Allowed.
3. If Found Illegal, It Is An Automatic Disqualification.
Transmission:
1. Stock Transmissions Only. Manual Valve Body Okay.
2. Transmission Must Be Same as Offered By Manufacturer (ex. Ford in Ford, Chevy in Chevy, etc.)
3. Aftermarket Shifters Allowed.
4. Stall Converters Allowed.
5. No Power Glides, Transbrakes, or Electric Transmission Controls Allowed.
Suspension:
1. OEM/Stock Type Suspension.
2. Must Maintain OEM Type Rear Leaf Spring Suspension in OEM Mounting Locations.
3. No Aftermarket Shackles/Sliders Allowed.
4. Lift Kits Are Allowed.
5. No 4-Link, Z-Link Conversions Allowed. (Ex. Chevrolet Under Ford, Ford Under Chevrolet, etc.)
6. No Traction Devices Allowed, Except Over the Spring Applications.
7. No Ladder Bars Allowed.
Tires:
1. All Tires Must Have DOT#. No Cutting or Grooving.
Radiator:
1. Radiator May be Relocated to the Bed of the Vehicle.
2. Electric Fans and Electric Water Pumps are Okay.
3. Radiator must be Securely Fastened and Shielded from Driver.
4. Must not be in the Driver's Compartment. Battery:
1. Must Not Be in Driver's Compartment. Battery Must Be Securely Fastened and Shielded from Driver.
2. Must Be Installed with 3/8 Bolts with a Minimum of a ¼ Steel Plate and/or Tube Frame Type Construction. (Bungee Ties or Rubber Straps Are Not Acceptable.)
3. May Have Auxiliary Batteries.
4. On/Off Battery Disconnect Switch Is Required at the Rear on the Passenger Side. The Switch Must Be Located a Minimum of Twelve (12) Inches to a Maximum of Twenty-Four (24) Inches from the Side and a Maximum of Twelve (12) Inches from the Rear.
Engine Specifics:
1. Only One (1) Engine Per Vehicle .
2. Engine Must Be Built with OEM/Stock Type Parts Only. Stock Rotating Assembly - Crank and Rods.
3. Stock Rod Lengths Only Measured Center-to-Center. Plus or Minus 13-thousandths / .013 Tolerance from OEM Specifications Is Allowed. Rod Lengths Must Match Specific Block.
4. Engine Has To Be in Stock Location with Stock Type Mounts. Factory Firewall Mandatory and Cannot Be Repositioned.
5. Engine Type Must Be Offered By Manufacturer in ½, ¾ or 1 Ton Vehicle.
6. No Mixing of Engine and Body Style. (Ex. Ford in Ford, Chevy in Chevy, Dodge in Dodge, etc.)
7. Camshaft Swaps Are Allowed. Only Hydraulic Flat Tappet Camshaft and Lifters Are Allowed.
Hydraulic Lifters Cannot Be Altered. No Hydraulic Rollers Allowed. No Ceramic Lifters Are Allowed. 8. All Engines Must Pull 17" of Vacuum at 1,000 RPMs. No Vacuum Devices. Vacuum must be Pulled Directly off Motor (Ex. No Pulling Vacuum from Brake Booster or Etc.)
9. Maximum Cubic Inch in ½ Ton Vehicles = 373 Cubic Inch
10. Maximum Cubic Inch in ¾ & 1 Ton Vehicles = 477 Cubic Inch
11. Maximum Over Bore Allowed = 70-Thousandths / .070
12. Engines Over a 373 Cubic Inch Must Be in a ¾ or 1 Ton Long Wheel Base Vehicle with ¾ or 1 Ton Running Gear (Drivetrain, Axles, Springs, etc.) All Big Block Trucks with engines more than 373 cubic inches must run 8 hole hubs and wheels.
13. NOTE: Vehicles in the ½ Ton Category May Run ¾ or 1 Ton Running Gear, BUT This Does Not Qualify the Vehicle to Run Over a 373 Cubic Inch Limit Engine.
STOCK STROKE: No Stroking or De-Stroking. Plus or Minus 5-Thousandths / .005 Tolerance from OEM Specifications Is Allowed.
CRANK: OEM/Stock Only (No Scat, Eagle, nor Any Other Aftermarket Crank).
PISTONS: Aftermarket Pistons Allowed: Flat or Dish. No Dome Pistons Allowed
BLOCK: OEM/Stock Only. No Aftermarket.
RODS: OEM/Stock Rods And Rod Lengths Only, (No Scat, Eagle or Any Other Aftermarket Rods.) Stock Rod Lengths Only Measured Center-to-Center +- .013. Rods Lengths Must Match Specific Block. (Ex. Chevy 327 & 350 = 5.700, Chevy 400 = 5.565, Chevy 396, 402, 427, & 454 = 6.135; Ford 302 = 5.090, Ford 351-C = 5.780, Ford 351-W = 5.959, Ford 351-M = 6.580, Ford FE 390 = 6.488, Ford 360 = 6.488, Ford 400 = 6.580 , Ford 460 = 6.605 ; Chrysler 318, 340, & 360 = 6.123, Chrysler 383 & 400, = 6.358, Chrysler 440 = 6.770). Aftermarket Rod Bolts Are Allowed.
HEADS: OEM/Stock Cast Iron Heads Only. No Grinding, Porting, Polishing or Port Matching. No Aftermarket Heads.
NOTE: Chevrolet Small Block: No Chevy Vortec Heads. Camel Hump/Double Hump Heads Allowed.
Chevrolet Big Block: No Chevy Vortec Heads. No Rectangular Port Heads.
Ford Small Block: No GT40 Heads.
Ford Big Block: No Super Cobra Jet Heads.
Chrysler Big Block: No HEMI Heads.
ROCKER ARMS: OEM/Stock Rocker Arm Ratio Must Be Maintained. Roller Tip Rockers Are Allowed.
INTAKE: Any Cast Iron or Aluminum Dual Plane Allowed. No Single Plane. No Grinding, Porting, Polishing, or Port Matching.
ALLOWABLE PARTS: Double Roller Timing Chains, High Velocity Oil Pumps, Racing Oil Pans, and Pick-Up Screens, Up-Graded Fasteners. Oil Coolers Are Allowed.
No Aftermarket On-Board Computer and/or Analysis Equipment Allowed at Any Time.
Carburetor Only:
1. No Fuel Injection Allowed.
2. Small-base carburetor only.
3. May be Double Pumper, But Must Have Choke Horn. No Dominator' Style Big Base Carburetors Allowed.
4. Throttle Pedal Must Be Positive Acting with Return Loop or Arm for Return In Case of Stuck Throttle. Three Return Springs are Mandatory, One (1) on Pedal and Two (2) on Carburetor.
Electrical:
1. Vehicles Must Utilize a Single Ignition System. 2. Only One (1) Ignition Box, One (1) Coil and One (1) Wiring System Allowed. Aftermarket Ignition and Wires Okay.
3. No Aftermarket Devices such as Ignition Retarders or Advances.
Exhaust:
1. Headers Are Allowed. Headers Can Be Run Up or Down.
Brakes:
1. Hydraulic Brakes Required.
2. Must Have Brakes on At Least Two (2) Wheels (Ex. Two Front Wheels or Two (2) Back Wheels).
3. Must Be Able to Stop Safely.
SUPER STOCK CLASS
Safety Rules:
1. Safety is the First Priority. If You Do Not Pass the Safety Tech-In, You DO NOT RACE. ALL SAFETY RULES Apply - See GENERAL RULES.
Roll Cage:
1. Must Have a 4-Point Roll Cage in the Cab Welded to Frame. A 6-Point Roll Cage Is Recommended.
2. Must Be a Minimum of 1.5 Diameter with at Least .063 Wall Thickness Chrome Molly or Mild Steel Tubing.
3. NOTE: Roll Bars/Sport Bars in the Bed of the Vehicle Are Not Considered an Acceptable Substitute for a Roll Cage.
4. Roll Cage Must Include Front Windshield Straps. Windshield Straps Must Have at Least Two (2) Straps of Webbing Material Connected from the Top Roll Cage Bar to the Lower Bar Over the Dash to Keep the Windshield from Coming into the Cab in the Event of an Accident.
5. Doors May Be Trimmed for Roll Cage, But Not Gutted. "Gutted" Refers to Excessive Removal of the Interior Above and Beyond That Which Is Required for the Roll Cage And/Or Other Specific Rules Allow.
6. Doors Must Be Able to Securely Open & Close.
Body and Frame:
1. Original Body and Frame with No Modifications Other than Fender Cut-Outs.
2. Vehicles Must Have All Factory Sheet Metal, Except Tailgates.
3. NOTE: Excessive Body and Interior Modifications Moves Race Truck Up To Super Modified Class.
4. No Mixing of Engine and Body Style. Engine Type Must Be Offered By Manufacturer. (Ex. Ford Engine in Ford Chassis, Chevrolet Engine in Chevrolet Chassis, etc.)
5. All Vehicles May Run ¾ or 1 Ton Running Gear (Drivetrain, Axles, Springs, etc.).
6. No Shortening or Lengthening of Frame Allowed.
Interior:
1. Driver's Seat Must Be Located on the Left Side Similar to Stock.
2. Dash May Be Removed.
3. Factory Firewall Mandatory and Cannot Be Repositioned.
4. Heater and Heater Ducts May Be Removed.
5. NOTE: Excessive Body and Interior Modifications Moves Race Truck Up To Super Modified Class.
6. Vehicle Is Required to Carry On-Board a Fully Charged, Mounted Fire Extinguisher of A, B, or C Dry Chemical Type, 2.5 Pounds Minimum Capacity with Gauge in Cab.
7. 4-Point SFI Harness Required for Driver & Passenger.
Bumpers:
1. Must Have Functional Front and Rear Bumpers.
2. Bumpers Must Be Capped Off Even and Not Stick Out Past the Side Body Panels or the Tires. No Protruding or Sharp Edges. No Pipe or Tubing Unclosed/Uncapped Allowed.
3. All Vehicles Must Have Tow Hooks Front and Rear.
Fuel Tanks/Cells:
1. Gas Tank May be Removed and Replaced with a Fuel Cell.
2. All Tanks/Cells Must Have Positive Locking or Screw Caps.
3. Fuel Tanks/Cells Must Be Fully Secured.
4. All Fuel Lines Must Be Isolated from Driver's Compartment.
Fuel:
1. Gasoline, Alcohol, or Racing Fuel Only.
2. No Ether, Nitro, Nitro Methane, Propylene Oxide, Nitrous Oxide, or Nitrous Devices ( Nitrous Plates, Nitrous Solenoids, etc.) Allowed.
3. If Found Illegal, It Is an Automatic Disqualification.
Transmission:
1. Any OEM Production Type Transmission Allowed.
2. Aftermarket Shifters Allowed.
3. Stall Converters Allowed.
4. Power Glides Okay in Any Vehicle (Ex. Ford, Chevy, Chrysler, etc.)
5. No Transbrakes or Electric Transmission Controls.
6. All Automatic Transmissions Must Have a SEMA Approved Shield or Blanket.
Suspension:
1. OEM/Stock Type Suspension.
2. Must Maintain OEM Type Rear Leaf Spring Suspension in OEM Mounting Locations.
3. No Aftermarket Shackles/Sliders Allowed.
4. Lift Kits Are Allowed.
5. All Vehicles May Run ¾ or 1 Ton Running Gear (Drivetrain, Axles, etc.).
6. Can Change / Up-Grade Axles, Rear End Housings.
7. No 4-Link, Z-Link Conversions Allowed. (Ex. Chevrolet Under Ford, Ford Under Chevrolet, etc.)
8. No Traction Devices Allowed, Except Over the Spring Applications.
9. No Ladder Bars Allowed.
Tires:
1. All Tires Must Have DOT#. No Cutting or Grooving.
Radiator:
1. Radiator May Be Relocated to the Bed of the Vehicle.
2. Electric Fans and Electric Water Pumps Are Okay.
3. Radiator Must Be Securely Fastened and Shielded from Driver.
4. Must Not Be in the Driver's Compartment.
Battery:
1. Must Not Be in Driver's Compartment. Must Be Installed with 3/8 Bolts with a Minimum of a ¼ Steel Plate and/or Tube Frame Type Construction. (Bungee Ties or Rubber Straps Are Not Acceptable.)
2. May have Auxiliary Batteries.
3. On/Off Battery Disconnect Switch Is Required at the Rear on the Passenger Side. The Switch Must Be Located a Minimum of Twelve (12) Inches to a Maximum of Twenty-Four (24) Inches from the Side and a Maximum of Twelve (12) Inches from the Rear.
Engine Specifics:
1. Only One (1) Engine Per Vehicle .
2. Engine Has to Be in Stock Location with Stock Type Mounts. Factory Firewall Mandatory and Cannot Be Repositioned.
3. Engine Type Must Be Offered By Manufacturer in ½, ¾ or 1 Ton Vehicle.
4. No Mixing of Engine and Body Style. (Ex. Ford in Ford, Chevy in Chevy, Dodge in Dodge, etc.)
5. Camshaft Swaps Are Allowed. Only Hydraulic Flat Tappet Camshaft and Lifters Are Allowed. Camshaft and Lifters Must Be Hydraulic. Hydraulic Lifters Cannot Be Altered. No Hydraulic Rollers Allowed. Ceramic Lifters Allowed.
6.
All Engines Must Pull 14" of Vacuum at 1,000 RPMs. No Vacuum Devices. Vacuum must be Pulled Directly off Motor (Ex. No Pulling Vacuum from Brake Booster or Etc.)
7. Maximum Cubic Inch Small Block = 412 CID.
8. Maximum Cubic Inch Big Block Cubic = 477 CID.
STROKE: Small Block Motors Can Be Stroked or De-Stroked. Big Blocks Cannot Be Stroked or De-Stroked.
CRANK: Aftermarket Crankshaft Okay.
PISTONS: Aftermarket Pistons Allowed: Flat, Dish, & Dome Pistons Allowed.
BLOCK: Any Cast Iron Block Including Aftermarket Block is Okay.
RODS: Aftermarket Rods Okay. Aftermarket Rod Bolts Are Allowed.
HEADS: Any OEM Production Cast Iron Heads Are Allowed. Any Modifications Are Allowed. GT40 & Chevy Vortec Heads Are Allowed. No Aftermarket Heads (Ex: No Dart, Brodix, World Product, Mopar Performance, SVO, etc.).
ROCKER ARMS: Roller Rocker Arms Okay. Screw-In Studs & Guide Plates Are Allowed.
INTAKE: Any Aftermarket Intake Allowed.
ALLOWABLE PARTS: Double Roller Timing Chains, High Velocity Oil Pumps, Racing Oil Pans, and Pick-Up Screens, Up-Graded Fasteners. Oil Coolers Are Allowed.
No Aftermarket On-Board Computer and/or Analysis Equipment Allowed at Any Time.
Carburetor Only:
1. Any Single, Small Base Carburetor Is Allowed. May be Double Pumper. No Dominator' Style Big Base Carburetors Allowed.
2. Throttle Pedal Must Be Positive Acting with Return Loop or Arm for Return In Case of Stuck Throttle. Three Return Springs are Mandatory, One (1) on Pedal and Two (2) on Carburetor.
3. No Fuel Injection Allowed.
Electrical:
1. Any Ignition Allowed.
2. No Magnetos Allowed.
3. No Aftermarket Devices such as Ignition Retarders or Advances.
Exhaust:
1. Headers Are Allowed. Headers Can Be Run Up or Down.
Brakes:
1. Driveline Brakes Okay.
2. Must Have Brakes on at Least Two (2) Wheels (Ex. Two Front Wheels or Two (2) Back Wheels).
3. Must Be Able to Stop Safely.
MODIFIED CLASS
Safety Rules:
1. Safety is the First Priority. If You Do Not Pass the Safety Tech-In, You DO NOT RACE. ALL SAFETY RULES Apply - See GENERAL RULES.
Roll Cage:
1. Must Have 6-Point Roll Cage Welded to Frame.
2. Must Be a Minimum of 1.5 Diameter with at Least .063 Wall Thickness Chrome Molly or Mild Steel Tubing.
3. Roll Cage Must Include Front Windshield Straps. Windshield Straps Must Have at Least Two (2) Straps of Webbing Material Connected from the Top Roll Cage Bar to the Lower Bar Over the Dash to Keep the Windshield from Coming into the Cab in the Event of an Accident.
4. Doors May Be Trimmed for Roll Cage, But Not Gutted. "Gutted" Refers to Excessive Removal of the Interior Above and Beyond That Which Is Required for the Roll Cage And/Or Other Specific Rules Allow.
5. Doors Must Be Able to Securely Open & Close.
6. Both Side Windows Must Have Either Web-Type Safety Net with Latch-Link or Spring Loaded Release Mechanism. Mesh or String-Type Nets Are Approved. Net Must Be Secured in Place and Centered in the Door Area Covering the Side Window & Fastened to the Upper Roll Cage Horizontal Member When the Vehicle is in Competition.
7. 4-Point SFI Harness Required for Driver & Passenger.
Body and Frame:
1. Original Body and Frame with No Excessive Modifications Other than Fender Cut-Outs.
2. Vehicles Must Have All Factory Sheet Metal, Except Tailgates.
3. No Mixing of Engine and Body Style. Engine Type Must Be Offered By Manufacturer. (Ex. Ford Engine in Ford Chassis, Chevrolet Engine in Chevrolet Chassis, etc.)
4. All Vehicles May Run ¾ or 1 Ton Running Gear (Drivetrain, Axles, etc.).
5. No Shortening or Lengthening of Frame Allowed.
6. Aftermarket Windshield Replacement Okay.
Interior:
1. Driver's Seat Must Be Located on the Left Side Similar to Stock.
2. Dash May Be Removed.
3. Heater and Heater Ducts May Be Removed.
4. NOTE: Excessive Body and Interior Modifications Moves Race Truck Up To Super Modified Class.
5. Mid-Plates and Motor Plates Are Allowed, BUT Factory Firewall Mandatory and Cannot Be Repositioned.
6. Must Retain Original Floor Pan.
7. Vehicle Is Required to Carry On-Board a Fully Charged, Mounted Fire Extinguisher of A, B, or C Dry Chemical Type, 2.5 Pounds Minimum Capacity with Gauge in Cab.
8. 4-Point SFI Harness Required for Driver & Passenger.
Bumpers:
1. Must Have Functional Front and Rear Bumpers.
2. Bumpers Must Be Capped Off Even and Not Stick Out Past the Side Body Panels or the Tires. No Protruding or Sharp Edges. No Pipe or Tubing Unclosed/Uncapped Allowed.
3. All Vehicles Must Have Tow Hooks Front and Rear.
Fuel Cells:
1. Gas Tank Must Be Removed and Replaced with a Fuel Cell.
2. Fuel Cell Must Have Positive Locking or Screw Caps.
3. Fuel Cell Must Be Fully Secured.
4. All Fuel Lines Must Be Isolated from Driver's Compartment.
Fuel:
1. Gasoline, Alcohol, or Racing Fuel Only.
2. No Ether, Nitro, Nitro Methane, Propylene Oxide, Nitrous Oxide, or Nitrous Devices ( Nitrous Plates, Nitrous Solenoids, etc.) Allowed.
3. If Found Illegal, It Is an Automatic Disqualification.
Transmission:
1. Any OEM Production Type Transmission Allowed.
2. Aftermarket Shifters Allowed.
3. Stall Converters Allowed.
4. Power Glides Okay in Any Vehicle (Ex. Ford, Chevy, Chrysler, etc.)
5. Transbrakes Are Allowed.
6. All Automatic Transmissions Must Have a SEMA Approved Shield or Blanket.
Suspension:
1. Front Suspension Swaps Allowed. (Ex. Chevrolet Under Ford, Ford Under Chevrolet, etc.)
2. Coil-Over Shocks Are Allowed in Rear, BUT Must Maintain OEM Type Rear Leaf Spring Suspension in OEM Mounting Location. Leaf Springs Must Be Connected to the Frame in Shackles/Hangers At Both Ends Front & Rear.
3. Aftermarket Shackles/Sliders Are Allowed.
4. Lift Kits Are Allowed.
5. All Vehicles May Run ¾ or 1 Ton Running Gear (Drivetrain, Axles, etc.).
6. Can Change / Up-Grade Axles, Rear End Housings, etc.
7. No 4-Link, Z-Link Conversions Allowed.
8. Traction Devices, 5 th Links, Ladder Bars Are Allowed.
9. Can Change / Up-Grade to Rack & Pinion Steering.
Tires:
1. All Tires Must Have DOT#. No Cutting or Grooving.
Radiator:
1. Radiator May Be Relocated to the Bed of the Vehicle.
2. Electric Fans Are Okay.
3. Water Pumps Are Optional.
4. Radiator Must Be Securely Fastened and Shielded from Driver.
5. Must Not Be in the Driver's Compartment.
Battery:
1. Must Not Be in Driver's Compartment. Must Be Installed with 3/8 Bolts with a Minimum of a ¼ Steel Plate and/or Tube Frame Type Construction. (Bungee Ties or Rubber Straps Are Not Acceptable.)
2. May have Auxiliary Batteries.
3. On/Off Battery Disconnect Switch Is Required at the Rear on the Passenger Side. The Switch Must Be Located a Minimum of Twelve (12) Inches to a Maximum of Twenty-Four (24) Inches from the Side and a Maximum of Twelve (12) Inches from the Rear.
Engine Specifics:
1. Only One (1) Engine Per Vehicle .
2. Engine Type Must Be Offered By Manufacturer in ½, ¾ or 1 Ton Vehicle.
3. No Mixing of Engine and Body Style. (Ex. Ford in Ford, Chevy in Chevy, Dodge in Dodge, etc.)
4. Engine Must Remain in the Stock Location.
5. Mid-Plates and Motor Plates Are Allowed, BUT Factory Firewall Mandatory and Cannot Be Repositioned.
6. Maximum Cubic Inch = 516 CID.
STROKE: Can Be Stroked or De-Stroked.
CRANK: Any Aftermarket Okay.
PISTONS: Any Aftermarket Okay
BLOCK: Any Cast Iron Block Including Aftermarket Block is Okay.
RODS: Any Aftermarket Okay. Aftermarket Rod Bolts Are Allowed.
HEADS: Any Cast Iron Heads Are Allowed. Any Modifications Are Allowed. No Aluminum Heads.
ROCKER ARMS: Any Aftermarket Okay. Screw-In Studs & Guide Plates Are Allowed.
INTAKE: Any Intake Allowed, Except Tunnel Ram Types & Sheet Metal Intakes.
Carburetor Only:
1. Any Single 4-Barrel Carburetor Is Allowed. No Multiple Carburetors.
2. Throttle Pedal Must Be Positive Acting with Return Loop or Arm for Return In Case of Stuck Throttle. Three Return Springs are Mandatory, One (1) on Pedal and Two (2) on Carburetor.
3. No Fuel Injection. No Blowers.
Electrical:
1. Any Ignition Allowed.
2. No Magnetos Allowed.
3. Alternators Are Optional.
Exhaust:
1. Headers Are Allowed. Headers Can Be Run Up or Down.
Brakes:
1. Driveline Brakes Okay.
2. Must Have Brakes on at Least Two (2) Wheels (Ex. Two Front Wheels or Two (2) Back Wheels).
3. Must Be Able to Stop Safely.
SUPER MODIFIED CLASS
Safety Rules:
1. Safety is the First Priority. If You Do Not Pass the Safety Tech-In, You DO NOT RACE. ALL SAFETY RULES Apply - See GENERAL RULES.
Roll Cage:
1. Must Have 6-Point Roll Cage Welded to Frame.
2. Must Be a Minimum of 1.5 Diameter with at Least .063 Wall Thickness Chrome Molly or Mild Steel Tubing.
3. Roll Cage Must Include Front Windshield Straps. Windshield Straps Must Have at Least Two (2) Straps of Webbing Material Connected from the Top Roll Cage Bar to the Lower Bar Over the Dash to Keep the Windshield from Coming into the Cab in the Event of an Accident.
4. Interior Side Protection Tubes/Horizontal Roll Cage Door Bars Are Highly Recommended.
5. Both Side Windows Must Have Either Web-Type Safety Net with Latch-Link or Spring Loaded Release Mechanism. Mesh or String-Type Nets Are Approved. Net Must Be Secured in Place and Centered in the Door Area Covering the Side Window & Fastened to the Upper Roll Cage Horizontal Member When the Vehicle is in Competition.
6. 4-Point SFI Harness Required for Driver & Passenger.
Body and Frame:
1. Must have Automobile Appearance.
2. No Tube Frames Allowed.
3. Aftermarket Windshield Replacement Okay.
4. Must Have Fenders/Sheet Metal Protection on All Four (4) Wheels.
5. All Vehicles May Run ¾ or 1 Ton Running Gear (Drivetrain, Axles, etc.).
7. Shortening or Lengthening of Frame Is Allowed.
8. Wheel Base May Be Shortened or Lengthened.
9. Vehicle Must Approved for Safety by Tech Officials.
Interior:
1. Dash May Be Removed.
2. Heater and Heater Ducts May Be Removed.
3. Mid-Plates and Motor Plates Are Allowed. Engine Set Back Is Allowed.
4. Vehicle Is Required to Carry On-Board a Fully Charged, Mounted Fire Extinguisher of A, B, or C Dry Chemical Type, 2.5 Pounds Minimum Capacity with Gauge in Cab.
5. 4-Point SFI Harness Required for Driver & Passenger.
Bumpers:
1. Must Have Functional Front and Rear Bumpers.
2. Bumpers Must Be Capped Off Even and Not Stick Out Past the Side Body Panels or the Tires. No Protruding or Sharp Edges. No Pipe or Tubing Unclosed/Uncapped Allowed.
3. All Vehicles Must Have Tow Hooks Front and Rear.
Fuel Cells:
1. Gas Tank Must Be Removed and Replaced with a Fuel Cell.
2. Fuel Cell Must Have Positive Locking or Screw Caps.
3. Fuel Cell Must Be Fully Secured.
4. All Fuel Lines Must Be Isolated from Driver's Compartment.
Fuel:
1. Gasoline, Alcohol, or Racing Fuel Only.
2. Nitrous Oxide Allowed.
Transmission:
1. Any OEM Production Type Transmission Allowed.
2. Aftermarket Shifters Allowed.
3. Stall Converters Allowed.
4. Power Glides Okay in Any Vehicle (Ex. Ford, Chevy, Chrysler, etc.)
5. Transbrakes Are Allowed.
6. All Automatic Transmissions Must Have a SEMA Approved Shield or Blanket.
Suspension:
1. Suspension Swaps Allowed.
2. Aftermarket Shackles/Sliders Are Allowed.
3. Lift Kits Are Allowed.
4. Can Change / Up-Grade Axles, Rear End Housings, etc.
5. 4-Link, Z-Link Conversions Allowed.
6. Traction Devices, 5 th Links, Ladder Bars Are Allowed.
7. Rack & Pinion Steering Is Allowed.
Tires:
1. Any Type Tires Except Paddle or Scupper Tires.
2. Cutting or Grooving Is Allowed.
Radiator:
1. Radiator May Be Relocated to the Bed of the Vehicle.
2. Electric Fans Are Okay.
3. Water Pumps Are Optional.
4. Radiator Must Be Securely Fastened and Shielded from Driver.
5. Must Not Be in the Driver's Compartment.
Battery:
1. Must Not Be in Driver's Compartment. Must Be Installed with 3/8 Bolts with a Minimum of a ¼ Steel Plate and/or Tube Frame Type Construction. (Bungee Ties or Rubber Straps Are Not Acceptable.)
2. May have Auxiliary Batteries.
3. On/Off Battery Disconnect Switch Is Required at the Rear on the Passenger Side. The Switch Must Be Located a Minimum of Twelve (12) Inches to a Maximum of Twenty-Four (24) Inches from the Side and a Maximum of Twelve (12) Inches from the Rear.
Engine Specifics:
1. Only One (1) Engine Per Vehicle .
2. Engine Type Must Be Automotive Type.
3. Mid-Plates and Motor Plates Are Allowed. Engine Set Back Allowed.
4. No Rear Engines.
Carburetor Only:
1. Any Single 4-Barrel Carburetor Is Allowed. No Multiple Carburetors.
2. Throttle Pedal Must Be Positive Acting with Return Loop or Arm for Return In Case of Stuck Throttle. Three Return Springs are Mandatory, One (1) on Pedal and Two (2) on Carburetor.
3. No Fuel Injection. No Blowers.
4. Nitrous Oxide (NOS) Is Allowed.
Electrical:
1. Any Ignition Allowed.
2. Alternators Are Optional.
Exhaust:
1. Headers Are Allowed. Headers Can Be Run Up or Down.
Brakes:
1. Driveline Brakes Okay.
2. Must Have Brakes on at Least Two (2) Wheels (Ex. Two Front Wheels or Two (2) Back Wheels).
3. Must Be Able to Stop Safely.
|
