Columbia Motor Speedway’s hornet class is intended to be a entry level racing class. Cars are intended to be built and raced on a limited budget to allow novice drivers to gain experience before advancing to a higher class. CMS race director reserves the right to request a hornet driver to move into a higher class at the end of a season if it is determined that driver’s ability has exceeded the intent of this class. This determination is made solely by CMS officials.
The hornet class is open to any driver 13 years of age or older. Anyone entering the pit area under the age of 18 requires a liability waiver signed by their parents.
It is the responsibility of the driver to provide proof that their car is legal. If tech officials suspect a violation, the driver must prove the part in question is in fact within the rules. NOT the other way around. REMEMBER just because these rules don’t say you can’t do doesn’t mean you can. Ask a tech official before you make any modifications.
Competing Models:
Open to American and foreign 3 or 4 cylinder vehicles whose components meet USA specifications only.
104” or less manufacturers advertised wheel base.
No all wheel drive, four wheel steer, t-tops or convertibles are allowed. Sunroof cars must have 20gauge steel securely welded or riveted covering the opening. No 2 seat or sport type cars are permitted. No Camaros or Firebirds. Any cars considered not within the intentions of this class will not be allowed to run, at the sole discretion of the tech officials.
Engines:
Only standard production 3 or 4 cylinder available for year, make and model permitted.
No modifications allowed
No rotary engines allowed
Engine must be an oem engine for that year and make of car. No turbos or superchargers.
Water is the only coolant allowed. Water wetter is OK. No antifreeze.
Fuel System:
OEM carburetor or fuel injection specific to year, make and model of car being raced.
Air cleaner and/or air box must be stock and installed in stock configuration. No modifications allowed.
Fuel tank: If stock tank is mounted forward of the rear axle, it may remain in place. Factory tanks mounted behind the rear axle must be replaced with a fuel cell or a steel boat tank. (boat tank 6.6 gallon maximum). Cell or tank must be securely mounted in the trunk. Subject to tech approval. A firewall with a minimum thickness of 20 gauge steel must seal the trunk area from the drivers compartment completely.
Fuel cell or boat tank must be secured with a minimum of (2) 1” straps . One located on each side of the cell.
Regular unleaded fuel only. No race fuels allowed.
All Fuel lines that run through the drivers compartment must be steel or rubber enclosed in iron pipe. Pipe must extend thru the front and rear firewalls.
ECM, PCM or engine management computer must be OEM standard for year, make and model. NO modifications allowed.
Electric fuel pumps only allowed on fuel injected cars. Must have a oil pressure shut down switch wired in.
Electrical:
Battery must be moved into the drivers compartment. It must be mounted securely and covered.
Must install and keep operational a brake light. Mounted in the top center of the back window opening. Stock third brake lights are approved.
A master disconnect switch that disconnects all power to all electrical components must be installed. It must be located behind the drivers seat. Easily accessible from the outside of the car. Window net must not block access.
Exhaust:
Must have stock type muffler. No performance mufflers. Exhaust system must remain in stock location and be functional. (No broken pipes or excessive leaks.)
Removal of catalytic converter is at your discretion
Drive Train:
OEM standard for year, make and model.
Manual or automatic transmissions allowed.
NO modifications allowed
Suspension:
OEM standard for year, make and model.
No adjustable suspensions components
Camber: 1 ½ degree maximum on front 2 tires. Must be obtained within factory adjustments. No cambering of rear tires allowed. Camber will me measured with a digital angle finder and is subject to tech at any time. Violation of this rule forfeits purse for the event and may be subject to other penalties.
Steering: OEM standard for year, make and model.
Bodies and Chassis:
Roll Cage: See diagram. Four point roll cage is required. Must have 2 drivers door bars with at least 2 bends in each bar.(3 bars recommended) Bars must be equally spaced and have braces between them. Must have 2 diagonal bars across passenger door. Must have cage welded to floorboards in the strongest area possible. Steel plates may be required at tech mans discretion. Cage must be a minimum of 1 ½” .090 wall tubing. NO Muffler pipe. Welds subject to tech approval. All overhead and drivers door joints must be gusseted. Recommend gusseting all joints.
No reinforcing of any factory component allowed.
Bodies: Must have complete bodies, hood, fenders and bumpers. Car expected to be of good condition and appearance. No cars will be allowed to run the next race date missing fenders or bumpers lost in a previous competition.
All flammable materials must be removed from interior.
All lamps and glass (excluding windshield) must be removed. Loose glass must be removed out of crevices.
Stock dash board is required. Steel dash over the top of the stock dash frame is allowed but must be complete from side to side.
All Seats must be removed. Drivers seat must be replace with an approved racing seat. Seat must be attached to the roll cage
Must have a 4 point race style harness. 5 point recommended. Harness must be secured to the roll cage.
Doors: Must be chained or welded closed.
Windshield must have 4 retaining tabs. 2 top and 2 on the bottom. 1/8” Lexan windshields are approved. Must be securely riveted. ABSOLUTELY NO plexiglass.
Numbers: All cars must have legible numbers on Doors and roof. 18” minimum height for door markings and 24” minimum on roof. Roof Numbers must face the scoring tower. (Right side up. Standing on the passenger side of the car and looking across the roof.
All airbags must be disabled.
One mirror located inside the body line is permitted for safety purposed. “mirror driving” will not be tolerated at the flagman’s discretion.
Tires and Wheels:
All wheels must have stock offset. Tires cannot extend outside the fenders.
Must run open lug nuts. NO acorn style lug nuts.
All tires must be the same size.
Tires: Must be a DOT approved street tire. NO studs or snow tires
No racing tires.
No tire softening
60 series or taller DOT approved tires.
$120.00 maximum MSRP on any tire ran in the hornet class.
SAFETY
All cars must carry a fully charged 2 ¾ lb ABC dry chemical fire extinguisher or have a fire suppression system.
Extinguisher must be securely mounted within reach of the driver while belted in. No duct tape holding extinguishers in place.
All pits also must have a ABC dry chemical fire extinguisher in plain view at all times.
CMS recommends everyone in the pits wears full length pants and long sleeve shirts. Absolutely no open-toed shoes or sandals allowed in pits. CMS recommends light colored highly visible colors for all people in the pits.
Helmets: Must be Snell 95 or newer with no visible damage. Subject to tech approval.
Padding required on all roll cage bars that the driver can make contact with.
2” padding required in the center of the steering wheel.
SFI approved racing suit is required. Must be in good condition. No rips or broken zippers.
Flame retardant shoes and gloves are required.
4 point racing harness is required. 5 point recommended. No more than 6 years old.
SFI approved window net is required. Must be in good condition and securely mounted.
