Mini Stock Rules

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MINI STOCK RULES 2008

 

DEFINITION OF “STOCK” OR “OEM”

 In the following rules stock, stock OEM or OEM will mean that a part or dimension must be from a standard production vehicle. “OEM” is the abbreviation for original equipment manufacturer. If parts are to be stock, stock OEM or OEM then they can not be GM Performance, Bow-tie, Ford Motor sports, SVO, Direct Connection such as Performance Catalogues, Marine, and Mail Order or any special Off-Road or Racing Performance Parts. No carbon fiber parts anywhere on the car. Absolutely no removal, alteration or covering of casting numbers, manufacturer’s name, logos, insignias, etc. from any item on the car. To do so will make that part illegal and it will be treated as such.

 


1.  COMPETING MODELS

American or foreign manufactured stock production two or four door sedan or mini truck.

4 cylinder motors only. No turbo and or rotary. No fuel injection.

No front wheel drive models allowed.

Wheelbase must remain stock.

Minimum weight of 2200 lbs with driver at any time.     54% max left, 51% max rear.

All ballast weight must be painted white and must have a car number on each weight.

No buckshot or wheel weights allowed.

Ballast weights will be bolted with a minimum of two ½” grade-8 bolts subject to safety tech approval. Bolt on clamps ok, two per piece.       

All weight that falls off car during a race will be fined $10.00 a pound.

 

2. BODIES

Bodies must be complete.

All exterior body parts will be metal with the exception of one-piece fiberglass hood & fenders. Fabricated panels and must look stock for make and model being used. Flat sides ok. Full bodies required at the beginning of each race meet.

Hood and trunk lid pins required. Minimum of two across the front hood and two across rear of trunk lid. One additional pin required for each missing hinge. 

Full stock firewall and floorboard including rear seat floor area leading into trunk required. All holes to be covered by sheet metal and welded or riveted in place.

A 6” hole in each wheel well is required to aid firemen in extinguishing fires.

Hood, doors, rear quarters, roof and deck may be gutted. (Inner reinforcement removed)

Stock roof must have A-post, and C-post.

Dash may be removed.

Fender wells may have a 3 to 5-inch clearance.

 A full windshield screen with two center supports 1/8” by 1”, centered 6” to 8” apart mandatory.

No mirrors allowed.

Driver’s window net mandatory.  Attached to the top and bottom of roll cage.  Release at top front. No string nets.

NO SHARP, PROTRUDING EDGES OR SCRUB RAILS ALLOWED.

 

3. BUMPERS

Bumpers must be stock mfg. 

Bumpers mounted behind after market full nose and or tail covers may be fabricated subject to tech approval.

Bumper height measured from ground to centerline of bumper must be a minimum of 16” and a maximum of 20”.

Bumpers must have a 90-degree turn on each side extending back a minimum of 4”. Bumpers must not have sharp corners or ends.

Front and rear bumpers must have metal plates (minimum of 20 gauge) covering full width of bumper securing ends of bumpers to the quarter panels and fenders.

Front and rear bumpers must have safety chains mounted to the frames. Minimum of 5/16 chain.

 

4. ROLLBARS

Full type roll-cage required, subject to tech approval.  Bars must be a minimum of 1 1/2” OD, .090” wall thickness.

NO GALVANIZED, ALUMINUM, OR EXHAUST TUBING ALLOWED

Minimum of 3 door bars on right side, with a minimum of 4 door bars on driver side door, no more than 7” spread between each door bar.  Must have 1/8” doorplate from top door bar to bottom door bar and from rear down bar to front down bar.

Rear kicker bars may extend to rear frame cross members.

Fuel cell protector mandatory, no more than the width of the frame rails.

Main roll cage uprights must be welded to tubing running full length and welded to rocker panels or welded to a minimum 3/16” thick plate, top and bottom, at all four corners.  Plate must be minimum 4” square, with four 7/16 grade 8 bolts at each location.

Padding must be used at any point where driver contact might occur. No swimming pool noodles.

Aluminum racing seat mandatory.  Seat must have complete cage frame support fabricated to the roll bar assembly.  No fiberglass seats.

A five (5) point safety harness, with quick release mandatory with a 3” wide lap belt, 3” shoulder belts and a 2” submarine. All belts must be attached to roll cage with a minimum of 7/16 grade 8 bolts.

All seat belts must have date of manufacturer and must be within 3 years of the present date.

FUEL CELLS MANDATORY.  Fuel cell must be between frame rails in trunk area.  Fuel cell must be totally enclosed in an 18 gauge steel container and mounted with TWO 1/8’ by 1” straps both lengthwise and crosswise. Bottom of cell center of axle or higher

MAXIMUM fuel cell capacity: 16 gallons

Turnover valve mandatory.

Fuel cell must be foam filled.

Fuel cap lanyard and ground strap required.

 

5. FRAME AND SUSPENSION

Frame must be stock only.  No reinforcing or modifying allowed.

Wheelbase must be stock for year, make and model utilized.

Front and rear sub frames must be stock for year, make and model of car utilized. No cutting, sectioning or redesign of any frame or sub frame to change the stock location of any suspension component or engine placement.

All components and parts must be stock no modifying.  No reinforcing. No weight jack devices of any kind allowed. No spring buckets. Fixed or adjustable spacers allowed. Racing springs allowed

No adjustable spring hangers allowed.  Replacement hangers must be stock lengths for year, make and model of car utilized.

Fixed lowering blocks allowed.

Front sway bars must be stock. No rear sway bars allowed.

Any crash damage repair must locate the suspension components in their original positions with original mounts with a minimum of reinforcement. All repairs subject to track approval.

Ball joint and ball joint location must be stock plus or minus one inch. No steel or offset bushings.

All shocks must be stock type and must be mounted in stock location to stock rubber mounts Adjustable shocks allowed.

Drivelines must have two (2) retaining straps.  May be made of chain or metal strap.  Drivelines must be painted white.  No aluminum drivelines.

 

6. STEERING

Steering column must be mounted in stock location.

 All Steering components (pump & box) must be OEM stock for model being used.

Steering quickener OK. Factory Rack and pinion ok if factory for model being used.

Steering wheel pad mandatory.

Quick release steering wheel mandatory.

 

7. BRAKES

Complete stock 4 wheel brakes in good working order only.

No rear wheel disk brakes allowed.

All 4 wheel brakes must work at all times.

Stock working master cylinders must be in stock location.

 

8. ENGINE

Engine must match make of vehicle.

Maximum CI as per factory specs plus 0.060 overbore.

Maximum compression ratio for all cars running in this division will be 10.5 to 1.

ENGINE BLOCKS: Stock OEM cast iron engine blocks only. Decking allowed. Studded main caps allowed. Must have stock casting numbers on block. Inspection hole required in oil pan to obtain unobstructed view of crank and rods. Blocks must not be altered in any way so that it cannot be used in a street legal production car.

CRANKS: Stock OEM crank only. No knifing, no lighting. No offset grinding. No stroking. No destroking. No after market cranks of any kind. No lightweight cranks allowed. After market crank pulley ok. Crank is to remain stock and will be teched.

PISTONS:OEM Cast or hypereutectic pistons only. No billet aluminum, no lighting of any kind.

RODS: Stock OEM rods and rod length only for year and make of engine being use. No lighting of any kind. Floaters ok. Heavy-duty rod bolts OK. Shot peened OK. No polishing. No after market rods allowed.

HEADS: No after market heads allowed. No port matching, no pocket porting or blending. No porting or polishing of any kind. After-market valves ok. Stock diameter only for head being used. After market valve springs, retainers, and keepers ok. Steel only no aluminum or titanium valve train parts. No roller rockers of any kind. No multi valve heads. Four spark plugs per head. No 2.0 liter heads on 2.3 liter blocks.

CAMSHAFT: Any solid or hydraulic camshaft allowed. No roller camshafts and or duel overhead cams allowed. After market adjustable cam pulley ok.

INTAKE: Stock intake manifolds for engine being used only no modifications.

 

9. CARBURETION

Holley #4412 or # 7448 carb. only. May remove choke plate power valve and change jetting only, must fit tech gauge.

Carburetor adaptor not to exceed 1” max with one gasket on top and one gasket on bottom. No other additional spacers. Two Throttle return springs mandatory. 

Standard size air cleaners only 4” x 14” max.(standard K&N filter ok) Flat steel top, steel bottom, air cleaner in between. Air cleaners through hood must have hood scoop. Absolutely no portion of air cleaner may assist the flow of air into carb.

 

10. FUEL SYSTEMS

Fuel pump must be in stock location.

NO COOL CANS ALLOWED.

NO GLASS OR PLASTIC FUEL FILTERS ALLOWED.

Gas shall not be blended with alcohol, ethers, or other oxygenates Race gas ok.

Electric fuel pump will be allowed on engines that have no provisions for mechanical fuel pump. Electric fuel pump must be wired through oil pressure sending unit or alternator in a manner that will insure fuel pump will not operate when motor is shut off.

Any line passing through the drivers’ compartment will be neoprene hose inside steel tubing, and will be subject to tech approval.

 

11. EXHAUST SYSTEM

After market headers allowed. Under the chassis or through the firewall ok.

Modifications to firewall to except header must be kept to a minimum.

Any part of exhaust system in drivers compartment must be completely sealed from driver.

Mufflers mandatory. Maximum dB reading 95 decibels at 100 feet.

 

12. COOLING SYSTEM

Radiators must be in stock location and appear stock.

Fan shroud mandatory.

Sold plastic, aluminum or steel fan ok.

Electric fans ok.

 

13. ELECTRICAL SYSTEM

Distributors must be stock point or HEI.

No racing modules or distributors allowed.

All batteries must be securely mounted. If battery is mounted inside of driver compartment it must be fully enclosed inside metal case bolted to the floor having a securely attached cover. Dry cell highly recommended if in driver’s compartment.

Electrical ON/Off switch and starter button must be within reach of driver without having to release, loosen or remove seat belts.

All cars must start under their own power.

Master electrical on/off switch mandatory & must be reachable from either side of car from outside, and kill the engine when turned off.

 All cars must be equipped with a stock starter and must be mounted in stock location.

 

 

14. TRANSMISSIONS & REAR-ENDS

Transmissions must remain stock and in stock location with all gears working.

Manual transmission ok. Stock steel pressure plate only. Aluminum flywheel ok.

Must be OEM style pressure plate & flywheel. This means aluminum flywheels will look just like factory steel flywheel.

One-inch inspection hole in bell housing mandatory. Steel only scatter shields mandatory.

Automatics must have stock working torque converters.

Transmission coolers ok. No mounting of coolers in driver’s compartment.

Rear-end must remain in stock location with stock suspension.

No rachet or locker rear-ends. No full spools allowed. Mini spool, or welded gears ok.

 

15. TIRES AND WHEELS

Maximum wheel width is 8”. Steel wheels only.

Maximum tire tread width 8 1/2'”.

No bead locks allowed.

Racing tires ok.

No tire softeners.

 

16. NUMBERS (IDENTITY)

For proper scoring, numbers must be easily read from the grandstand.

Car numbers must be in CONTRASTING COLOR and must be on both doors and on top: also front and rear for staging.

Numbers on doors and top are to be a minimum 20: high by 4” wide.

Numbers on the front of the car must be 6” high; and must be placed in driver side headlight area (must be clearly visible to staging person).

Numbers on the rear of the car must be 6” high and placed near the right side corner.

Driver’s name is to appear on top over both doors in 3” high letters.

Numbers must be solid color, no neon, no gold or silver. 

h)  No three digits or letters will be accepted.

 

17.  MISCELLANEOUS

Radios: No radios allowed in cars.

Equipment will not be considered “legal” simply because it went through tech inspection unobserved or because a rule has not been written excluding it.

 No interior or exterior rear view mirrors allowed.

 

18.   SAFETY EQUIPMENT

For all safety equipment it will be the sole responsibility of the driver, not Victorville Auto Raceway agents/officials or corporate officers to ensure that his/her safety equipment is correctly installed, maintained, and properly used.  Please refer to manufacturer installation and usage guidelines and adhere to them.

Helmets/Gloves/Suits/Eye Protection

Safety helmet must meet Snell 95 testing standards, and bare proper identification, and have no signs of previous damage.

Two (2)-layer fire suit is mandatory at all times. No flight suits allowed.

Approved racing gloves Mandatory, no welding gloves, gardening gloves, etc.

Approved racing shoes or leather boots required no nylon shoes permitted.

Eye protection is mandatory, and must be in place at all times.

Fire Extinguishers

On board fire extinguishers (2lb) MANDATORY with metal quick release mechanism, within drivers reach while strapped in. Car # must be painted on.

All cars will be required to have in their pits a minimum of one 5 pound, Halon or dry chemical fire extinguisher.  This is to be visible to tech officials, and all crewmembers must be aware of its location, and knowledgeable in the use of the fire extinguisher. Sharing a fire extinguisher between two pit areas is illegal.

Car and driver will be required to make safety rule violations comply, PRIOR to racing any event.

 

19.  INSPECTIONS

All cars are subject to inspection at any time and in any manner determined by track officials.  All decisions regarding the timing and manner of inspections, as well as which cars will be inspected is final.

A competitor must take whatever steps requested by a track official, to facilitate inspection of the car at any time.

Only those persons approved by track officials may be admitted into the inspection area.

Victorville Auto Raceway has the right to confiscate any part and/or equipment, which fails to meet applicable specifications during an event.

Track officials mandate inspection after the event; if a car that has competed in the event is taken from the tech area without permission of a track official, the car and driver will be disqualified.

Any member who fails to tear down a car for inspection when requested to do so by the track officials will incur a fine and/or loss of championship points and/or indefinite suspension from Victorville Auto Raceway.

 

20. ENGINE PROTEST PROCEDURES:

 Any track member may request to have a motor tore down to the crankshaft for inspection of illegal parts for a fee of $500.00. Any starters of the main event within 5 minutes after checkered flag at the tech pad area. $100.00 to track, $400.00 to car owner if found legal. If illegal, $400.00 will be returned to member contesting car and $100.00 to track ($100.00 to raceway covers cost required for tech officials to over see procedure). Must have raced the two races in a row prior to requesting an engine tear down. Refusal of tear down penalty subject to track discretion

 

 

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