COTPC rules
*****MUST HAVE WORKING BREAKS ON THE FRONT AXLE*****
2014 – 2017 8000lb 2.6 Diesel Truck
This Diesel class is designed for pickup trucks with a wide variety of performance
upgrades. The truck must be 4 wheel drive.
Weight : 8000 lb Maximum, with driver
Regulations:
Ballast:
Ballast is permitted. Front hanging weights are permitted. Front ballast and ballast
mounting point must be securely mounted. May not extend more than 60 inches from the centerline of the front axle, and be high enough to clear scale and other pit obstacles. If it hits the scale it must be removed to compete. Ballast may be added to the bed of truck. If used it must be securely fastened to the bed. Final decisions rest with the technical department.
Batteries:
The Batteries must be securely mounted and concealed. They may not be located in the driver
compartment.
Body:
The body must be the OEM truck body including the full bed floor. The body must retain
full sheet metal. Metal aftermarket hoods are permitted. Fiberglass hoods and roll pans
only are permitted. All Fiberglass hoods must be shielded on the underneath side with
sheet metal or aluminum skin a minimum of .060 thick. The hood must be closed and
securely latched while the truck is hooked to the sled. The complete OEM firewall and
complete OEM floor pan is mandatory. A factory installed pickup bed or commercial
style aftermarket bed must be installed. No flat beds. Must have complete factory bed floor.
Brakes:
Four wheel hydraulic functional brakes are mandatory.
Chassis:
The OEM chassis is mandatory. Front of engine block can be no farther forward than 17” of the centerline of the front axle. The vehicle must retain the OEM chassis. Wheel tubs, back half conversions, tube chassis, etc, are prohibited.
Cooling System:
Radiators must be in stock location and be of at least stock size
Credentials:
All drivers must have a valid state drivers license.
Driveline:
An OEM transmission and transfer case are mandatory. They must have been an option on a one ton or smaller pickup.
Driver Restraint System:
The OEM restraint system or SFI APPROVED 5 point harness is mandatory and must be worn.
Driveshaft Loops:
All trucks must have at least six (6) inch wide u-joint shields around all u-joints on rear drive shaft constructed of at least ¼ steel or 3/8 aluminum that will safely contain the ujoints and the ends of drive shafts. Any u-joint on the front axle that can be seen from front or side of truck must be shielded the same as all other u-joints. All shields must be securely mounted to the vehicle. A new puller may be granted a one time wavier. EVERYONE MUST HAVE ALL SAFETY EQUIPMENT for EVERY PULL!! **NO EXCEPTIONS**
Engine:
The engine block must have been available as a factory option on a one ton or smaller pickup truck. Cubic Inch limit of 460 CI. Water pumps may be factory or electric powered. Electric cooling fans are permitted. No billet aluminum or billet steel heads. Head must circulate coolant. NO DECK PLATE ENGINES PERMITTED
Exhaust:
All vehicles must be equipped to direct exhaust upward. The exhaust must exit rearward
of the driver’s compartment or through the hood. Stacks exiting through the fender well
is prohibited. Two (2) 3/8 inch diameter bolts must be installed through exhaust pipe in a
cross pattern within one (1) inch of each other and as close to the turbo as possible. This
will be teched. Bolt heads welded to the pipe or sheet metal screws to mimic this will be
grounds for disqualification.
Fire Extinguisher System:
A fire extinguisher system is permitted, it must be securely mounted All vehicles must
have at least a 2 ½ lb extinguisher with working gauge mounted within drivers reach.
Fuel:
The fuel must be pump #1, #2 diesel or Soy/Biodiesel. Fuel must be commercially available. A fuel cell may be used in place of the factory fuel tank. Fuel is not permitted in the driver’s compartment.
Fuel Injection Pump:
The fuel injection pump is limited to cylinder number specific ( I.e. 6 cylinder pump on a
6 cylinder motor). Dual high pressure common rail fuel pumps or HPOPs are permitted.
Ag governors are allowed. No Sigma or 12 cylinder pumps allowed.
Harmonic Balancer:
All engines turning more than 4500 RPM must be equipped with a harmonic balancer or
dampener meeting SFI Spec 18.1.
Hitch:
Hook point must be no closer than 44” inches of centerline of rear axle, hitch height maximum of 26” inches, with a minimum of a 3.75”x 3.0” opening. Hitch point must be easily accessed. No “trick” type hitches permitted. Hitch must be stationary in all directions. Hitch must be frame mounted. Hitch must be mounted centerline of rear axle or behind. Hitch must not exceed a maximum of 25 degree angle from pivot point to hook point.
Intercoolers:
Factory style or aftermarket intercoolers are allowed. Water to air intercoolers allowed.
Ice and water must be weighed at the time of crossing the scales.
Interior:
A complete interior, including dashboard, door panels, headliner, etc. is mandatory. Aftermarket seats are permitted, they must be fully upholstered. The use of hand -throttles are permitted.
Kill Switches:
All trucks are required to have kill switch located on the back of the truck, located near
the hooking point. On trucks with an electric injection fuel pumps it must have an electric
shut off or disconnect for the injection pump on the back of the truck For trucks with
manual injection pumps they must have an air guillotine of the spring loaded type, no
butterfly type to kill the air intake to the engine. It is recommended to have an air shut off on all trucks. Kill switch failure will result in disqualification.
Nitrous Oxide/Propane:
Nitrous Oxide is prohibited. No other oxygen extenders are allowed. Propane is prohibited. All system components must be removed from the truck.
Rear End:
Non OEM rear-end housings are prohibited. The rear end housings must have been for a
one ton or smaller pickup pick up. Rear axle bolts must be covered with a cap or shield.
Safety Equipment:
All drivers must wear a helmet, and a SFI 3.2a approved fire jacket and long pants, not
necessarily fire suit pants. More specifics posted in general rules.
Steering:
The vechicle must retain the full, original OEM steering gear. The vehicle must retain the
original OEM power assistance, if it was so equipped. Additional stabilizers are
permitted. Non OEM power assist methods are prohibited. Hydraulic steering permitted.
Street Equipment:
Complete headlight and taillights assemblies are mandatory and must be operative,
except the right front headlight may be removed for air inlet to engine. Complete OEM
windshield and all other windows are mandatory. Driver windows must be able to operate per
factory specifications. They must open and close via electrical or mechanical means.
Suspension - Front:
The factory suspension configuration must be retained. Modifications to the front
suspension that would alter the original location ( I.e. moving it forward or backward) is
not permitted. Strut tower braces, lower tie bars, sway bars, and limit straps are permitted.Traction bars and devices are permitted. Air shocks are prohibited.
Suspension - Rear:
An OEM style suspension is mandatory. Traction bars and devices are permitted, they
must be bolt on only, welds are permitted for attachment to the frame or axle housing.
Traction bars if installed must have a chain or cable or some type of safety device
mounted one (1) foot from the front support to catch the bar in case of failure. Control
arms may be strengthened or replaced, providing all original mounting points are retained
and used. Sway bars, lower tie bars, limit straps, and camber kits are permitted. The rear
suspension may be solid with a removable block. Air bag spring assist and air shocks are
prohibited.
Tires:
The tires must be DOT street tires. Cut tires are prohibited.
Transfer Case:
Non - OEM transfer cases are prohibited. It must have been an option on a one ton or
smaller pick up truck.
Transmission - Automatic:
Non - OEM transmissions are prohibited. The transmission must have been an option for a one ton or smaller truck. Aftermarket torque converters, valve bodies and internal components are permitted. Transmission brakes are prohibited. Any non -OEM floor mounted automatic shifter must be equipped with a spring-loaded positive reverse lockout device to prevent the shifter from accidentally being put into reverse. A functional neutral safety switch is mandatory. Vehicle must not start in gear. All transmission lines must be metallic or high pressure type hose. All automatic
transmissions must be equipped with a transmission shield meeting SFI Spec 4.1 and must be labeled accordingly. A blanket type shield must be used and appropriately labeled as meeting SFI Spec 4.1 and it must extend from the rear of the engine block to the rear of the tail housing with a minimum of six (6) inch overlap where it is fastened. All vehicles using an automatic transmission must be equipped with a flex plate meeting SFI Spec 29.1.
Transmission - Manual:
Non - OEM transmissions are prohibited. The transmission must have been an option on a one ton or smaller truck. Aftermarket internal components are permitted. A clutch meeting minimum SFI Spec1.1 or 2.1 is mandatory on all engines. All manual transmissions must be clutch assisted. Sequential shifters are prohibited. All transmissions must have a flywheel shield labeled as meeting minimum SFI Spec 6.3 or greater. Applications for which an SFI Spec flywheel shield is not available may use a properly attached SFI 4.1 or 4.2 blanket that completely covers the bell housing. It must be attached to the rear of the engine block and extend rearward to the transmission with a minimum of six (6) inch overlap where it is fastened. All transmissions or clutch pedals will have a safety interlock switch so that vehicle will not start in gear.
Turbocharger:
The vehicle is limited to a 2.6 inducer bore single turbocharger. The compressor wheel must protrude into into a 2.6” bore for 1/8”. The inlet will be measured using a 2.605” inch plug; the plug must not be able to enter the inducer bore. A stock map width enhancement (MWE) groove is allowed. No MWE groove will be allowed that has a width greater than .200”. All provisions allowing air into the wheel other than via bore and the MWE groove are prohibited. The vehicle driver will be responsible for making compressor wheel accessible for tech personnel to measure bore and able to inspect compressor wheel.
All changes MUST be made January 1, 2014 to be legal in the 2014 season!
Water Injection:
Water injection is prohibited. All system components must be removed from truck.
Wheelbase:
The vehicle must retain the original factory wheel base and track width. Cab and chassis
trucks may not exceed 172 inch center to center of axles. Front dual-wheel spacers may
be used only with accompanying positive-offset dually style wheels.
