Dirt Drags / Mud Bog
Classes Rules

Rules

Open

  • Any tire

  • Any chassis

  • Any fuel (no nitro methane)

  • Any power adders

  • If vehicle that does not have doors must have window or arm restraints

  • Racing seat required

  • Minimum 6pt cage required

  • Must have functional brakes

  • Helmets required

  • Fire suit required

  • Fire extinguisher required

Modified

Engine:

  • Engine swaps allowed

  • No engine setbacks allowed, #1 spark plug must be inline with top ball joint

  • Aftermarket cast iron blocks allowed, (No aluminum blocks allowed)

  • Ford A460 heads and Chevrolet SR20 heads allowed (NO pro stock heads allowed)

  • No tunnel ram or sheet metal intakes allowed

  • Firewall modifications allowed but must be steel or equal to the original

  • Single carburetor only

Suspension:

  • Any modified factory style suspension allowed

  • Ladder bars allowed (NO racing style 3 link or 4 link suspensions allowed)

  • Fiberglas leaf springs

  • Slider and floaters allowed

  • Shocks relocation allowed (NO coil over shocks)

  • Any DOT tire allowed, cut tires allowed) (NO scoops allowed)

Safety:

  • If vehicle that does not have doors must have window or arm restraints

  • Racing seat required

  • Minimum 6pt cage required

  • Must have functional brakes

  • Helmets required

  • Fire suit required

  • Fire extinguisher required

Super Street

Engine:

  • Big blocks allowed in full size only (engine must match make of body)

  • Engine must be in stock location, motor plates allowed

  • Aftermarket heads allowed (NO pro stock style heads allowed)

  • Wet sump oil systems required, (vacuum pumps allowed)

  • Single carburetor or factory EFI

  • Open header allowed

  • No tunnel ram or sheet metal intakes allowed

  • NO ARC modules on ignition or traction control (no laptops allowed in pit area)

Drivetrain:

  • Tires must me uncut DOT, maximum of 44”

  • No coil over conversions

  • Suspension mut be the original type for the make and model

  • NO straight axle conversions in full size trucks

  • NO homemade 3 link or 4 link suspensions

  • NO homemade radius arms

  • Sliders, floaters, ladder bars are legal on the rear only

  • Fiberglass leaf springs are allowed front and rear

  • Cal trac bars allowed

  • Trans Brakes allowed (must have transmission shield)

  • OEM transfer case

  • Brakes on all four wheels

  • No dana 30 frontends in full size trucks


Frame/Body:

  • Must retain all factory interior and exterior panels (doors, das, door panels etc.)

  • Must have been factory available as a four-wheel drive

  • Lexan windows allowed

  • No fiberglass panels unless factory produced

  • Trimming for tire clearance allowed

  • Gas tanks may be relocated but must be secured (fuel cells allowed)

  • Factory type bed floor, minimum of .092 steal or 3/16” aluminum plate

Safety:

  • If vehicle that does not have doors must have window or arm restraints

  • Racing seat required

  • Minimum 6pt cage required

  • Must have functional brakes

  • Helmets required

  • Fire suit required

  • Fire extinguisher required

Hot Street

Engine:

  • Big blocks allowed in full size only (engine must match make of body)

  • Stock OEM production cast iron cylinder heads

  • Stock OEM production cast iron cylinder blocks only

  • No aftermarket ignitions with adjustable timing controller or electronic timing boxes

  • Vehicle must have been available as a V8 to run a V8

  • Single 4150 base carburetors only

  • Factory EFI allowed

  • Must pull 15” of vacuum at 1000 RPM’s to be checked at the manifold

  • No nitrous allowed

  • No vacuum pumps allowed

  • Open headers allowed, must exit down and back

  • Aftermarket cast aluminum intakes allowed

  • Radiator must be in front of the engine

  • Front motor plate allowed but must retain factory motor mounts

Drivetrain/Tires/Suspension:

  • Tires must be uncut DOT up to 39.5”

  • No suspension or steering modifications, (lift kits allowed)

  • Trimming for tire clearance allowed

  • Factory style suspension for the make and model of the truck (minimum of three steel leaf’s in the rear, and two in front)

  • No fiberglass leaf springs allowed

  • Rear shocks may be relocated

  • Fixed ladder bars allowed, no floaters or sliders allowed

  • No trans bakes allowed

  • Electric or air shifters allowed

  • Must have OEM transfer case

  • Must have four functioning brakes

  • Ford 9” rear ends allowed in all makes

Frame/Body:

  • Must have unmodified body and frame

  • Must have all factory cross members in place

  • NO fiberglass panels unless factory produced (aftermarket fiberglass hoods allowed)

  • Gas tanks and batteries can be relocated but must be secured

  • Factory type bed floor, minimum of .092 steal or 3/16” aluminum plate

  • Aftermarket seats and harness allowed

  • Must retain all factory interior and exterior panels (doors, das, door panels etc.)

  • Lexan side and rear windows allowed

Safety:

  • If vehicle that does not have doors must have window or arm restraints

  • Minimum 6pt cage required

  • Must have functional brakes

  • Helmets required

  • Fire suit not required but recommended

  • Fire extinguisher required

Modified Street

Engine:  

  • Stock OEM production cast iron cylinder heads and blocks

  • No aftermarket ignitions with adjustable timing controller or electronic timing boxes, must be mounted in a visible location

  • No engine swaps, must have been available in that make and model. Big Blocks in ¾ ton or larger

  • Vehicle must have been available as a V8 to run a V8

  • Single 4150 base carburetors only

  • Factory EFI allowed

  • Must pull 17” of vacuum at 1000 RPM’s

  • Must have all required street legal exhaust

  • No vacuum pumps allowed

  • Aftermarket cast aluminum intakes allowed (dual plane only)

  • Radiator must be in front of the engine

  • No power adders, turbos, nitrous, etc.

  • Engine must be in stock location with stock OEM mounting previsions

Drivetrain/Tires and Suspension:

  • Tires are to be uncut DOT up to  38.5” (all tires must be same)

  • No suspension or steering modifications other than a lift kit

  • No coil springs, adjustable shocks or racing style shocks

  • No solid front axle conversion

  • No trans brakes allowed

  • No electric or air shifters allowed

  • OEM style transfer case only

  • Must have all four working brakes

 Frame and Body:

  • Must have all required street legal requirements, lights, dash, door panels, etc. Racing seats allowed but must retain two

  • Battery must be in the factory location

  • Must have unmodified matching body and frame

  • No gutting of the hood allowed

  • No fiberglass body panes unless factory produced, fiberglass hoods allowed (no race weight hood allowed)

Safety:

  • Must have functional brakes

  • Helmets and seatbelts required

  • Fire suit not required but recommended

  • Fire extinguisher required

DRIVE IN CLASS

  • This class is designed for the everyday 4x4 that you drive to work on a daily basis.

  • ABSOUTLY NO PURPOSE BUILT RACE TRUCKS

  • Tech officials have final say

UTV/ATV Class (Mud Bog Friday Night Only)

  • Rider must be 16 years old or over

  • Must wear a helmet and seatbelt

  • Absolutely NO PASSENGERS!!!!!!

  • Minimum of 8 UTV’s/ATV’s in the class

  • Must be 4x4!!!!! Only allowed to go through the mud pit in 4x4 drive only!!!!!

  • Hook point must be on back of SxS to pull out if they get stuck