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HORNET CLASS RULES
The final decision of the Track Officials and their interpretation of these rules will be the final ruling.
1.
4 cylinder, North American model, stock production car. No trucks, rotary engines, convertibles, four-wheel drives. Must have complete stock factory body. Body parts lost or destroyed during racing must be replaced by the next race day. No gutting of interior sheet metal. No bracing allowed outside the passenger compartment. No sharp edges. Front and rear bumpers/covers must be strapped to the body. Exhaust must exit from under the car and be equipped with a muffler. Must meet the 95-db track noise rule.
2.
All flammable interior items must be removed except the dashboard, steering wheel and pedal assemblies. These must remain stock for year, make and model of car. All glass except the front windshield must be removed. No loose glass/debris to be left in the car (vacuum it out). Cars with a gasket style (non urethane or glued) windshield mounting method must have four tabs riveted to the body on the outside of the glass. If the car is equipped with an air bag system it MUST be removed. All under hood/trunk insulation and flammable material must be removed. An approved aluminum race seat is required. A fully charged 2 ˝ lb. fire extinguisher mounted within easy reach of the driver is required. Metal style mounts. Mount must be bolted or riveted, NO sheet metal screws.
3.
Single hoop roll bar recommended. Alternately a 1 7/8” OD steel pipe with steel mounting plates (min. 4” x 4”) on each end and bolted side to side behind the drivers seat in addition to a 1 7/8” OD steel upright with steel mounting plates on each end may also be used. Crossbar and upright must be welded together. Gussets recommended where pipes are welded together. Crossbar and upright to be welded (preferred) or bolted, min. ˝” diameter grade 5 bolts and 4” square sandwich plates, to both the roof and floor pan. All welds to be of good quality and must be as complete as possible. NO tack welds! Round pipe/tubing only, NO square tubing. See diagrams for roll bar/upright info. A full cage may also be used if approved by Hornet Tech. and may not be used to stiffen the car. No cage structure to extend forward of the engine firewall. Cage material may be smaller than the minimum roll bar requirements depending on type of material used. Proof of material used may be required and is the responsibility of the driver to provide. NOTE: Before you build check with Hornet Tech. to be sure you meet the safety requirements.
4.
Drivers’ door must be welded or chained (min. 3/8” chain) shut. Must have two drivers’ door reinforcements, minimum 4” channel, bolted with min. ˝” diameter grade 5 bolts and large washers to the door and extending 6” ahead and 6” behind the door opening. Top channel must be mounted midway up the door. Lower channel to be mounted so as to protect the rocker/door sill area. Channel must be mounted on the exterior of the door and each end must be cut at a 45-degree angle. Angled area must be capped with a steel plate welded to the channel. Passenger door must be chained (min. 3/8” chain) shut but must still be able to open for Safety Personnel. Use a snap type (carabineer) not a bolt to secure the chain.
5.
An approved window net, mounted with min. 3/8” solid unthreaded steel rod (NO re-bar) must be used on the drivers door. Net must be latched at the top (roof) and open downwards. Window net mounts to be welded or bolted. No hose clamps or sheet metal screws to be used.
6.
Car horns, radios/speakers and third (high mount) brake lights must be retained and must be kept in working condition. A clearance or similar style light may be used if the car was not originally equipped with a third brake light.
7.
Stock factory frame and suspension. No modifications to body/suspensions to allow for added caster/camber adjustments beyond factory specs. No added bracing allowed. No clamps, adjusters, spacers or chain allowed.
8.
Approved D.O.T. 65 series or larger passenger tires only. All four wheels and tires must be the same size. Tires must have a 200 tread wear rating or better. There must be tread on the tires. No bald spots, separating or bald tires. No tire treatments or softeners allowed.
9.
Engine, top of engine to bottom of oil pan, must be stock for year, make and model of car. If the engine needs to be replaced, it must be replaced with the same engine as originally equipped. Any substitutions MUST be approved by Hornet Tech. prior to installation. Maximum 155 horsepower rating as originally advertised by the manufacturer. Engine must be equipped with an enclosed air cleaner/filter assembly. On cars equipped with a timing BELT a 2” diameter hole must be cut in the timing belt cover to allow for cam gear inspection. On cars with a timing CHAIN a hole is not required but the valve cover/timing cover MUST be removed for inspection when requested by Tech. person. No turbo or superchargers.
10.
Transmission must remain stock for year, make and model of car.
11.
No synthetic oils of fluids. No anti freeze. No fuel additives, pump gas only.
12.
Battery must be securely fastened with a min. 1/8” solid steel strap/bar and must remain under the hood in the stock factory location.
13.
Gas tank:
A) If the stock tank is located in front of the rear axle assembly it may remain.
B) If the stock tank is behind the rear axle assembly it must be removed and mounted in the trunk/hatch area. A fuel cell (recommended) or an approved metal boat tank may be used in place of the stock gas tank.
C) Stock tank, fuel cell or boat tank must be enclosed in a metal box with a ground strap from the filler neck to the body if relocated to the trunk/hatch area. Tank must be securely fastened with two 1/8” by 1” wide metal straps.
D) A full metal firewall must separate the trunk/hatch area from the passenger compartment if the gas tank has been relocated inside the vehicle.
14.
An approved SFI-1 single layer or better fire suit is mandatory. NO coveralls. D.O.T. or better helmets and neck braces are required.
15.
A 3” wide 5-point race harness mandatory. Must be properly positioned and mounted using the factory seat belt bolts or min. ˝” diameter grade 5 or better bolts.
16.
Cars to be painted bright yellow or black only with a minimum of two red, yellow or black stripes (think bumblebee).
17.
Doors to remain the color of the body with a min. 18” high number in a highly contrasting color (yellow door-black number, black door-white number). No design or decoration other than the number is allowed on the doors. Roof numbers, if used, to be 36” (or as large as roof area allows) high. A 5” high WHITE number is required on top right front corner of windshield.
18.
No two-way radio/phone communications between the driver and the pit or the grandstand areas.
19.
Lineups and direction of racing to be decided by the Track Officials.
20.
Track Officials reserve the right to refuse to allow a car to compete if the car is considered unsafe due to excessive rust, structural or accident damage.
Roll Bar
The single hoop roll bar made of 2” outside diameter steel pipe with an
additional bar between the two verticals. This additional bar should be
below the drivers’ shoulder level to allow proper mounting of 5” harness.
On the bottom of each vertical there must be welded a 4” x 4” square steel
plate for mounting to the floor. If you are bolting the roll bar in and not
welding it, there needs to be a similar 4” x 4” steel plate under the floor for strength.
The cross brace style is also made of 2” outside diameter steel pipe. It consists of a pipe with 4” x 4” steel mounting plates welded on each end and bolted, side to side, through the body behind the drivers’ seat. An additional vertical upright, with 4’ x 4” steel mounting plates welded to each end, is welded to the cross brace behind the drivers’ seat. If this upright is bolted, not welded, to the sheet metal top and bottom there needs to be corresponding 4” x 4” steel “sandwich” plates for strength.
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