All Drivers & Crew Persons are responsible to follow all safety rules & track rules of Dixon Speedway. Any person violating these rules will be subject to suspension &/or expulsion from the facility. This is at the sole discretion of Dixon Speedway & its appointed Officials.
All rules may be changed/modified/adjusted as deemed necessary by Dixon Speedway Officials. Rules are designed & enforced to keep competition equal & safe.
AGE: Minimum age for this class is 13 years old or 12 years old with at least 2 years of prior racing experience in the micro/mini sprints. Final eligibility is up to the discretion of General Managers.
FUEL: Methanol only. No performance enhancing additives allowed i.e. Power Mist, Propylene Oxide, Nitro Methane, M5, etc. See section 7 of General Rules for more information regarding Fuel Rules.
WEIGHT: Minimum weight of car & driver for this class is 750 lbs. All cars must meet weight requirement using the scales provided by Dixon Speedway. Cars must report directly to the scales as directed by racing Officials. Any driver that fails to go directly to the scales will be disqualified.
TIRE RULE: Hoosier Tires are mandatory on all 4 corners of the car. Right Rear Tire must be a Hoosier D25 or harder compound. Grooving & Siping will be allowed. Softening treatments are not allowed.
WINGS: Wings of any type are not allowed in this class. All wing mounting hardware must be removed from the car prior to start of any race. Dixon Speedway will strictly monitor enforce removal of any additional paneling installed on cars in order to create an air-foil effect. No material will be allowed to extend below the upper shock mounts toward the axle & bottom frame rail. Mud Guards may not extend to the upper top frame rail (above drivers head). No Body Part may extend beyond the rear Down Rail. No Air Foil devices or additional Body Panels will be allowed on the Hood, Tail Tank, & side Nurf Bars. Protective Aluminum Panels & Bars are allowed on the left side of the car to protect the engine.
NUMBERS: All cars must have legible numbers in contrasting colors of the background color on both sides of Tail Tank & the Nose. Minimum height of numbers on the Nose are 8”, 10” on the Tail Tank. Numbers must be separated from advertisement so they are legible.
ENGINE RULES: All 600 wingless cars must run a 4 cylinder, 4 Stroke, 640cc maximum displacement engine. A maximum of 2mm over stock bore, as manufactured, is allowed. Cars must be self-starting. Aftermarket Air Boxes & Exhaust Headers are allowed. All cars must have a Muffler securely mounted to the Exhaust Header. Traction control devices are not allowed.
Additional Engine Rules:
· Head Clearance no restriction.
· Crankshaft no restrictions.
· Camshaft’s no restrictions.
· Cam Gears no restrictions.
· Connecting Rods no restrictions.
· Pistons no restrictions.
· Valves & Springs no restrictions.
· Parts same year as engine no restrictions.
· Stock appearing Black Box no restrictions.
· Crank Trigger no restrictions.
· Clutch Plates no restrictions.
· Transmission no restrictions.
· Charging system, no restrictions.
· Cockpit adjustments allowed. (non-electronic)
· No Claimer rule.
GENERAL RULES: You must read & understand the General Rules & Regulations. All Drivers & Crew are responsible for knowing & following these rules & educating/ensuring their guest’s follow these rules.
PROTEST RULES: Please reference the Protest Rules (section 9) as all drivers & car owners will be responsible for knowing & following these rules.
* All Rules are subject to promoter's discretion