KING OF THE KASTLE CLASSES & RULES

UTV Classes

  • Recreational/Dune, AKA First Time Racer (any factory built UTV) Limited to 200 entries

  • Sportsman 900 (600-900cc)

  • Sportsman 1000

  • Sportsman 1000 Turbo

  • Sportsman Women

  • Pro Production 900 (600 to 900cc)

  • Pro Production 1000

  • Pro Production Single Seat (RS1)

  • Pro Production 1000 Turbo

  • Pro Modified 1000

  • Pro Modified 1000 Turbo

  • Pro Unlimited

  • Experimental / Electric / Hybrid

  • It takes three cars to make a class, if there is not enough to make a class, KoK will make a decision after all considerations at taken.  KoK has the final decision

  • Drivers can only race in one class. If you have already raced the Rec/Dune class you must move up to Sportsman or Pro. If you are known to have raced in the Pro classes (any organization) you may not race in the sportsman class.

KING OF THE KASTLE CLASS DEFINITIONS

Sportsman UTV class definition:


The Sportsman class is a beginner entry level class. The vehicles must be built to Production class rules. The KoK inspector will have the final say on all sportsman entries. KoK reserves the right to split or combined classes to accommodate similar classes of vehicles.




Pro Production UTV class definition (Production 900, Production 1000, Production Single seat) definition:


The Pro Production UTV class vehicles are built using production UTVs, manufactured by registered companies that issue VIN numbers. Companies must produce a minimum of 1,000 units per year to be accepted. UTVs must have two seats* (1 seat for RS1) and normally aspirated OEM engines must be used with a maximum engine size of 1,000cc*. Must use a hood, grill, front and rear fenders from the UTV. All suspension mounting points must be in the OEM location. Shocks must mount in the OEM locations. All suspension components must be the same dimensions as delivered by the OEM manufacture. All engines must remain stock as delivered from the OEM from the intake edge of the throttle bodies to the edge of the exhaust flange. Must use OEM engine electronics. Must use OEM transmission and differentials.

The following are allowed: exhaust header & muffler, air box and filters, clutching and transmission gears, OEM computer reflashing. After market suspension components allowed as long that the OEM pivot locations and geometry are retained. Shocks, springs and valving are open. Components that add reliability may be allowed (manual tensioners, head studs, relocated cooling etc). Chassis and suspension reinforcement allowed.




Pro Production Turbo UTV class definition:


The Production Turbo UTV class vehicles are built using production UTVs, manufactured by registered companies that issue VIN numbers. Companies must produce a minimum of 1,000 units per year to be accepted. UTVs must have two seats and OEM engines must be used with a maximum engine size of 1,000cc. Must use a hood, grill, front and rear fenders from the UTV. All suspension mounting points must be in the OEM location. Shocks must mounted in the OEM locations. All suspension components must be the same dimensions as delivered by the OEM manufacture. All engines and turbos must remain stock as delivered from the OEM from the intake edge of the turbo to the edge of the exhaust flange. Must use OEM engine electronics. Must use OEM transmission and differentials.

The following are allowed: exhaust header & muffler, air box and filters, clutching and transmission gears, OEM computer reflashing. After market suspension components allowed as long that the OEM pivot locations and geometry are retained. Shocks, springs and valving are open. Components that add reliability may be allowed (manual tensioners, head studs, relocated / split cooling etc). Chassis and suspension reinforcement allowed.




Pro Modified UTV Class definition


The Pro Production UTV class vehicles are built using production UTVs, manufactured by registered companies that issue VIN numbers. Companies must produce a minimum of 1,000 units per year to be accepted. UTVs must have two seats and normally aspirated OEM engines must be used with a maximum engine size of 1,000cc. Must use a hood, grill, front and rear fenders from the UTV. All suspension mounting points must be in the OEM location. All engines must utilized the OEM engine cases. Must use OEM transmission and differentials.

The following are allowed: engine modifications, aftermarket engine electronics, aftermarket clutching, aftermarket and long travel suspension. Chassis and suspension reinforcement allowed.




Pro Modified Forced Induction UTV Class definition:


The Pro Production UTV class vehicles are built using production UTVs, manufactured by registered companies that issue VIN numbers. Companies must produce a minimum of 1,000 units per year to be accepted. UTVs must have two seats and forced induction OEM engines must be used with a maximum engine size of 1,000cc. Must use a hood, grill, front and rear fenders from the UTV. All suspension mounting points must be in the OEM location. All engines must utilize the stock engine cases. Must use OEM transmission and differentials.

The following are allowed: engine modifications, aftermarket engine electronics, aftermarket forced induction components, aftermarket clutching, aftermarket and long travel suspension. Chassis and suspension reinforcement allowed.




Pro Unlimited UTV class definition:


The Pro Unlimited UTV class vehicles are built using a factory UTV frame or a full tube custom frame. A motorcycle, snowmobile, or UTV engine must be used with a maximum engine size 1,000cc and no car engines are allowed. Turbochargers and superchargers are allowed. The vehicle must use a hood and front fenders from a UTV and have two seats. Max wheelbase is 124 inches, which can be achieved by cutting the factory frame or building a custom tube frame. Any type of suspension is allowed. This is an open UTV class, with the exception of wheelbase 124-inch, 80-inch width, and a 32-inch tire. Any UTV is legal to race in the Unlimited class. This included SR1’s, engine swaps, custom suspensions, etc.

Experimental / Electric / Hybrid class definition: this is an experimental class open to all electric / hybrid powered SxS based vehicles. Drivetrain and suspension are open. All safety rules apply.




Experimental/Electric/Hybrid Class definition:


This is an experimental class open to all electric / hybrid powered SxS based vehicles. Drivetrain and suspension are open. All safety rules apply.




Rec/dune - aka first time racer:


Four point harness allowed, stock cages allowed but not recommended, no bolted together roll cages. The same requirements as the sportsman classes. This is a First timer class to grow the sport.





REQUIREMENTS FOR ALL CLASSES

  • If anyone verbally or physically abuses the KoK support staff you and your team will be DQed and Not Welcome Back.

  • Helmets: Helmets must be of the type approved by the Snell Memorial Foundation with a Snell sticker attached, and rated SA2010 or newer. SFI/FIA equivalent also eligible. No DOT Helments (Not Safe).

  • Fire Suit: One-piece fire suits are mandatory. Fire suits must meet the requirements of SFI 3.2A/1 or better. Gloves, racing shoes, boots can be SFI rated or leather. No motorcycle riding gear allowed.

  • Fire Extinguisher: Portable 2.5-pound fire extinguisher readily accessible to the driver. ABC type or equivalent fire extinguisher. A second 2.5 pound fire extinguisher must be mounted at the rear of the vehicle. 

  • Safety Harness: All classes require a 5 point harness except 4 point allowed in Rec/Dune first timer class.

  • Safety Nets: Approved safety nets are mandatory on all vehicles.

  • ADA - KoK welcomes all ADA drivers. As this us a remote desert event each ADA driver must have a non ADA co-driver. ADA codrivers are allowed in all classes.

  • HANS type devices are recommended, or a minimum of neck roll is required.

  • Roll Cage: A well designed and built after market roll cage made for racing is required for all Pro classes. Cage must attach in a minimum of 6 points. Sportsman - Factory  cages are not recommended. Factory cages will be allowed if modified or reinforced and tied into the frame at at least 6 points. Gusseting of the factory cage is highly encouraged.

  • Roofs - all Pro vehicles must have an approved metal roof. Sportsman may run an approved stock roof.

  • Doors: Lockable side protection doors must be mounted in a way to not be able to pop open during racing. Factory doors with a secondary locking mechanism are approved. Strong Bungee cord OK.

  • Ignition: Ignition switch and all electric fuel pumps must be labeled and easily accessible from inside and outside the vehicle. Keyed ignition OK

  • NO nitrous or other pressurization / injection type system allowed.

  • Fuel system - Stock fuel system are allowed. Approved fuel cells of no more than 12 gallons are allowed.

  • Battery - all batteries must be securely mounted and the positive terminal taped.

  • Mirrors - all vehicles are required to have at least 1 rear view mirror.

  • Skid Plates - any skid plate is allowed and highly recommended. All skid plates but be securely attached.

  • Wheels - each wheel on the vehicle including all spares must have the vehicle number on the wheel.

  • Tires - any tire allowed up to 35” in diameter. Single tire per corner.

  • Horns - all vehicles required to have an audible signaling device. A very loud portable air horn may be allowed.

  • Rear Warning Lights - a flashing green or blue light and a steady amber are required on all vehicles. No exceptions. If a light fails you will not be allowed to continue racing. Additional detail will be announced.

  • Spark Arrestors - all vehicles are required to have a USFS approved spark arrestor.

  • Number Plates: Vehicles must display correct vehicle number in the correct size and color.

  • OR OHV sticker - all vehicles are required to display a current OR OHV sticker.

  • First Aid: Weatherproof first aid kit must be carried in the vehicle.

  • Breakdown Safety Devices: One battery-operated red flashing beacon or one red reflective breakdown triangle device.

  • Radios - all vehicles must have a VHF radio. KoK will be utilizing Wxman - 151.625 as the emergency channel. You must advise KoK of your frequency and a cell number. Your frequency must be written on the LH side of the roof.

  • Survival Supplies: All vehicles must carry at least one day of survival supplies and one-quart of water per occupant or rider.

  • Pitting - all vehicles may only pit in the approved pit location. All fueling must be done on a fueling mat, vehicle must be grounded, not running and a person manning an approved fire extinguisher.  No shorts allowed in the pits.

  • Fueling - Gravity feed fueling only, no pressurized systems Every Car MUST HAVE A Fireman at guard with fire extinguisher before fueling can begin. Cars MUST be turned OFF, parked on a mat and MUST be grounded before fueling.

  • Checkpoints - 25 MPH Zones into checkpoint, Stop/Go Paddle Person, Stop to be scored, 25 MPH Leaving Check Point until Go Sign. Don't abuse the course workers! They are keeping your score! 25 MPH Zones into Finish Line Full Stop.

 

Changes / updates / revision - The KoK inspector will have the final say on all entries. KoK reserves the right to split or combined classes to accommodate similar classes of vehicles. KoK reserves the right to revise and update all rules.

Please review all the class rules in particular USFS approved spark arrestors, Seat belts, Window nets, Rear lights wired directly &  Numbers. A reminder this is a NO Chase Cars - meaning no chase or support vehicles on the course - only at the pits. A minders that ALL race vehicles must have a current OR ATV Permit - they are only $10 - makes the BLM happy. 

 

NUMBERS

Race Vehicle Numbers

Each class has its own four digit numbers, the first two numbers are the class and the second two digits will be the car start position Example the first car registered for a the Pro-Unlimited class would be 2501, the second car would be 2502 ect.. 

 

Start position given in order your time-stamp registered 
 

All vehicles in competition must be identified with the correct class background color and correct vehicle numbers and be displayed in the proper locations as described herein.

 

All vehicles in competition must display the official King of the Kastle decal on both sides of the SxS. All vehicles in competition must have the identification in the following sizes and locations: Minimum 8” tall with 1” wide stroke on each side ‘fin’ of the SxS. Minimum 6” tall with 1” stroke on the rear fo the vehicle and must be clearly visible. Minimum 4” tall located on the 

he front of the SxS  above driver’s front window. Extra-large roof top panel numbers are beneficial. Side Door Numbers are NOT allowed. The vehicle MUST have side “fin” numbers. (Behind the roll cage just above the rear fenders on both sides.)

 

All backgrounds must be solid color no outlines or fading. No other colors besides specified for the class may be used on number plates.

• White background with Black letters for sportsman and First-timers  1000 

• Red background with White letters for the Pro classes  2500 


NOTE: Racing with incorrect background color or incorrect numbers will result in a penalty and/or up to disqualification. KoK assumes no responsibility for scoring vehicles with unrecognizable numbers. It is the racer’s responsibility to have proper class colored backgrounds and numbers and for keeping numbers recognizable