Mini-Cup

Auburndale Mini Cup Rules

Central Florida Mini Cup Rules at Auburndale Speedway is a driver development class. This class is
committed to helping young drivers develop a solid foundation for their racing careers.
• This series allows anyone under 18 years of age to compete in point series. Drivers 18 and over can apply to run as a non-competitive driver. Drivers are required to demonstrate exemplary leadership and sportsmanship qualities, both on-and-off track.
• All drivers new to Mini Cup racing at Auburndale Speedway are required to contact Steve Smith 863- 559-9865 prior to participation in their first race. No exceptions will be permitted.
• Any Mini Cup driver who has not previously competed at Auburndale Speedway must be cleared by the track’s race director prior to their first race. It is the responsibility of all new Mini Cup drivers to report to the race director personally (no crew members), prior to their first race.

Track Rules
Please find the tracks specific rules on the Auburndale Speedway’s web site. It is the responsibility of the car owner/driver(s) to make sure they understand the race flags and what they mean as well as racing lingo. If you do not, please let the Mini Cup Director know to help you become acclimated, so everyone stays safe.

Mini Cup Director Responsibilities
-Responsibilities are to communicate between car owners/drivers and the track, schedule practice times, tech of cars, implement rules, make sure competitors are competent to race with others and assist with their progression. As well as driver line up and approval for a driver to race.
-At no time does the director make calls during the race. This is the sole responsibility of the track officials. Decisions made during races are the sole discretion of the tower and track officials

Mini Cup Specific Rules

*The top 3 winners the following race will start in the back. The remaining competitors will draw chips and that is where they will start in the Heat Races. The outcome of Heat Race will determine where you will start in the feature. Features Only the chip draw and prior winners will start accordingly.
*Cautions – you must be able to hear your spotter for directions during a caution from the tower. Also, you must maintain a slow and safe speed during the caution while track officials are tending to an issue on the track.
*Restarts – mini cups only do single line re-starts. Know what your driver’s position was when the caution comes out that is where you will restart in a single file. Also, listen for the tower to see who brought out the caution and who must go to the rear.
*Starts and Re-starts – you cannot pass on the inside until you pass the start/finish line!

Conduct

Each participant shall conduct himself to the highest standards of behavior and sportsmanship. Participants actions shall not diminish the reputation of the Auburndale Speedway, sponsors, or the sport of automobile racing. Failure to comply may result in penalties as specified by Auburndale Speedway officials.
• Crew members &/or Driver-respect your competitors, directors, officials and track. Under no circumstances will there be arguing or cursing during a race to track or officials (including payout window) and your actions in the pit’s not sportsmanlike will result in disciplinary actions. This also includes social media (see track policy on-line).
• 1st offense – Disqualified with points & payout
• 2nd offense – same as above and suspended for 1 race
• Any incident after #2 will be the discretion of the track and board of directors.
• Please respect your pit mates they are mostly children and do not deserve to be subject to yelling, cursing and unsportsmanlike conduct.

Safety Harness

All belts and harnesses must be of the five (5)-point type and meet the following minimum requirements:
• Have a minimum SFI rating of 16.1.
• Be at least two (2) inches wide. (three inches wide recommended).
• Be dated by the manufacturer and no more the (3) years old. A quick-release seat lap belt is
required.
• Both ends of the lap belt must be fastened to the roll cage with grade 8 bolts not less than 3/8 inch in diameter.
Shoulder harnesses must come from behind the driver’s seat. Inertia reels cannot be used.

Head and Neck Restraint

• A head and neck restraint system designed specifically for auto racing (neck collar minimum) is mandatory for all drivers.
No driver shall compete in any event with head or arm extended outside of the car

MOTOR & TECH RULES

All parts must be Honda GX 390 factory production parts unless otherwise specified in this manual. No
machining or alterations of parts is permitted unless specifically noted.

All parts are subject to be compared to a known stock part from Honda.

*NO READING BETWEEN THE LINES*
*IF IT’S NOT IN THE RULES, IT MUST REMAIN STOCK*
*UNLESS OTHERWISE STATED, ENGINE WILL BE TECHED AS RACED*
*IN ORDER TO QUALIFY TO RACE FOR THE EVENT, ALL CARS WILL GO THROUGH PRE-RACE TECH*

Factory blower housing must be used with a solid mounted flywheel screen
        *NO ROTATING SCREENS
• Tape on holes are optional. All other tin is optional
• Air filter, non-tech, no ram air allowed

Weight

• 650 lbs. with driver in car
• Maximum 55% on left side
• 2” ride height measured with driver out of car

Carburetor

•Honda

o .945 ventway
o Must use a Honda carb 13 HP

Restrictor plate: .750 no go all anodizing must be on there

• NO signs of tampering allowed

• Subjected to removal or swap at race director discretion
• Engine subject to spray test. If the engine races up or stalls during this test, it will be disqualified.
• Restrictor plate must have a gasket on the bolt side of the plate.

Exhaust

• Length size and material are non-tech
• All bolts must be drilled and safety wired
• Any support bracket allowed

PVC System
• All vent hoses must be routed to a canister for collection

Fuel Lines
• All connection points must be secured
• Fuel filter recommended

Sealing
• All engines MUST run green VP Racing seals
• All engines MUST be taken to VP Racing for inspection and then seals will be installed. There will be a charge for this service.
• As the engine list grows it will be updated and made available regularly
• Any engine needing maintenance will be updated on list with current seal numbers
• If a VP sealed motor is deemed to be tampered with or any motor alterations after being sealed your car and race team will be suspended for the remaining season as well as points being taken away depending on the severity and determined by the Director.

Ignition
• Coil can be Honda or aftermarket of the UT1 design (nondigital). May not be altered in any way. Silicone can be used to assure kill switch wire doesn’t fail off.
• Any GX series plug boot style is allowed. Aftermarket is ok as long as it is of the same shape and design.

Cam
• MUST be VP Racing cam only.
• Compression release must be there.
• Factory trimming dots must line up.

Factory push rods, rockers with the number 1 stamp unaltered, guide plate, rocker balls and studs only. NO AFTERMARKET.

Valve Cover
• Honda GX 390 factory. Can have alterations to clear rockers or evenflo hose attachment of pulse line added.
• Billet is allowed as long as they don’t interfere with valve train or constitute any performance gain.

Flywheel
• MUST run ARC 6621 only and must be set at 3rd line from neg side of timing mark.
• MUST run stock unaltered flywheel key.

Side Cover
• MUST run ARC 6059 only as produced by ARC with all bearings installed.
• Only two dowel pins are mandatory, other two are optional. May use studs or bolts
• NO welding, sleeving, or any other means to the dowel pin holes. Bolt holes can be welded for repair only

Block

• Any Honda GX 390 or GX 340 production blocks can be used.
• NO welding, sleeving, or any repair can be done to dowel pin holes. Weld to repair broken bolt or crack ok.
• NO welding to add any structural gain or performing gain
• Minimum bore size: 3.465
• Maximum bore size: 3.510
o May be machined to maximum +.005 pop up

Piston

• Any Honda piston as manufactured
• NO ALTERATIONS. Allow up to .75 over

Rings

• Factory Honda rings only up to .75 over

Rod

• ARC 6272 only as manufactured
• NO ALTERATIONS

Cylinder Head
• Any generation factory Honda head allowed. 3.725 minimum OAH
• Valves and retainers must match the generation head they came from. No mixing
• Shims non tech
• Oil seal non tech
• Guides, ports, and seats must remain stock.
• 3 angle valve job is allowed as only modification
• Valve guide liners are allowed as long as no attempt of moving location

Clutch
• NO axle clutch
• NO torque converters
• Engine clutch can be shoe or dry disc

Crank
• May be shortened to accommodate mini cup clutch
• Honda GX 390 OEM Core
• NO grinding, polishing, or lightning

Valves
• Honda valves only. Matching generation 45°
• NO knife edging only
• NO polishing or alterations allowed

Valve Springs
• Any single wire spring

Starter
• Any Honda style starter allowed
• Block can’t be modified for mounting of different style starter

Gaskets
• Any gasket of Honda GX design
• Sealant is allowed on head gasket, side cover, and exhaust
• Head gasket thickness is non-tech

Oil
• Any oil allowed as long as there are no power enhancing additives

Fuel
• 87 octane allowed
• No oxiginates or any other power enhancing additives
• Fuel is subject to testing to compare to known legal sample

Fuel Pump
• Pulse pumps only
• NO electric fuel pumps

Engine Firewall & Deck Cover
• MUST be installed
• Battery must be installed behind firewall

Gear Rule
• 14 driver, 60 rear
• Right rear tire must be 50” with +/- .5” margin

• Max 35 Chain & Gear

Tires
• American Racer tires only. MUST be purchased at track
• NO TIRE PREP ALLOWED OF ANY KIND
o This includes: sanding, grinding, chemicals

Rear Axle
• Must be 44” and centered in cradle
• Must run snap rings and be safety wired

Shocks
• Any shock or spring configuration other than adjustable shocks, bump stops, coil binding, or pigtail springs not allowed

Bodies
• NASCAR style bodies only
• Body must be securely attached
• Window nets are required on both sides or optional right window can be used in place of net
• Windows are required everywhere else

Brakes
• Rear brakes are mandatory and must be in working order
• Front brakes are optional

Hubs
• No free spinning rear hubs allowed
• Key ways must be installed

Wheels
• 6” wide wheel only

Safety Belts
• MUST be no older than three years

Fire Extinguisher
• Each car is required to have a fire extinguisher.

*RULES SUBJECT TO CHANGE