SECTION 10- MINI STOCK
10.1
DEFINITION.
10.1.1
The word stock will mean unaltered as originally
factory produced and installed for make. All Cars and trucks will be stock for
make unless otherwise specified within these rules.
10.2
COMPETING
MODELS.
10.2.1
1955 or newer 4 cylinder sedans, coupes, or pickups.
10.2.2
Any front or rear wheel drive, non-turbo 4 cylinder
approved. Fiero models not approved.
10.3
ENGINES
10.3.1
Must be same make as the body. Must be Factory OEM
block. Machining of surfaces approved.
10.3.2
Engine must remain in stock location. Tech discretion.
Aftermarket solid motor mounts approved.
10.3.3
Only factory produced OEM parts and components will be
approved unless otherwise specified.
10.3.4
Intake manifold will be stock for make with factory
casting numbers. Interior manifold modifications approved.
10.3.5
Headers are approved.
10.3.6
Cylinder heads will be stock casting for make. Aluminum head approved
only if stock OEM (original equipment manufacturer) Aftermarket
production heads are not approved. Machining and surfacing approved.
Porting of intake and exhaust ports approved.
10.3.7
Flywheel must retain factory casting numbers. Machining
for the purpose of lightening is approved.
10.3.8
Clutch disc
and pressure plate will be stock type replacement only. Ram type not allowed.
10.3.9
Rocker arm assembly optional.
10.3.10
Piston type optional.
10.3.11
Valves, and valve springs of any type may be used.
10.3.12
Fuel pumps must be factory type replacement. Electric
pumps must have oil pressure shut off switch. (If engine dies, fuel pump must shut down immediately.)
10.3.13
Solid or hydraulic camshaft and lifters of any
manufacturer approved. Roller Cam and lifter
not approved.
10.3.14
Adjustable cam gears are approved.
10.3.15
Oil pans may
be over-sized, interior baffles allowed. Claimer pan approved.
10.3.16
Oil coolers
and remote pump/filter locations are approved. Oil coolers must be mounted
outside of the driver’s compartment. Must be located forward of the front
firewall and rearward of the radiator.
10.3.17 Dry sump oil tanks are
not approved.
10.3.18 CARBURETOR
10.3.18.1
One (1) two-barrel carburetor or two (2) one barrel carburetors
allowed.
10.3.18.2
No variable venturi
carburetors approved,. (i.e. predator)
10.3.18.3
Maximum 2” adapter or spacer plate allowed. Plate
must be bolted or welded to the factory intake location of manifold only.
10.3.18.4
Two throttle return springs required.
10.3.18.5
Air cleaner or butterfly cover required, must be
contained under the hood.
10.3.19 FUEL INJECTION
10.3.19.1
Fuel injection cars are approved if; Engine, Chassis,
and Body are of the same year make and model. (i.e. Dodge Neon, Honda Accord,
Nissan Sentra),
10.3.19.2
Injection motors must have OEM fuel log, stock intake
tube and factory stock ignition and computer.
10.4
BODY
SPECIFICATIONS
10.4.1
Body and chassis must be of the same make. (i.e Ford to Ford)
10.4.2
Floor pan and firewall are to remain stock and intact
and in stock location, any penetrations or openings must be sealed with minimum
20 gauge metal and meet tech approval.
10.4.3
Body must be complete for declared make and model. No convertibles.
Similar models may inter change body panels (ie
Mustang/Pinto, terrcell/corrolla ect.)
if done in
a clean, neat manner and resembles factory appeal.
10.4.4
Bodies to remain stock in appearance. No excessive
trimming permitted. Destroyed panels must be replaced or repaired. Fabricated
panels must be minimum 20 gauge metal and resemble, with out question, the part
it replaces. Aluminum or fiberglass not permitted.
10.4.5
All holes or openings in body will be neatly filled or
covered, (ie...taillights, head lights, door handle ect..)
10.4.6
Cutting or shortening of body to decrease height or length
of body is only permitted in the case of chassis/body swap. Any cutting or shortening
must be kept to a minimum an may only be approved to keep wheel opening in
correct position or roll bar position at an optimum. Any cutting is subject to
a weight penalty at tech discretion.
10.4.7
Fenders and quarter panels may be trimmed for tire
clearance. Trimming not to exceed 3” from top of the tire. Edges must be
rolled to meet DCS tech approval.
10.4.8
Windshield
optional. If removed it is recommended that it is replaced with a maximum of
½” X ½” mesh screen covering the entire opening and
be securely mounted. Lexan windshields are approved. Side
and rear windows may be used. Lexan only (minimum
1/8”) is approved for use. Passenger door window will remain open for
safety purposes.
10.4.9
Front inner fenders may be removed. Both inner door
panels may be removed. All other inner panels may be removed. Hood and rear
deck lid may be skinned.
10.4.10
Inner panels in trunk area may be removed.
10.4.11
Doors will be securely welded or bolted shut.
10.4.12
Hood and rear deck lid will be securely fastened using
(4) four hood pins or (2) two hood pins and (2) two hinges. NUTS AND BOLTS ARE
NOT APPROVED FOR SECURING HOOD OR DECK LID.
10.4.13
Hood may be
altered for air cleaner clearance purposes only. Exposed air cleaner is
permitted. Fabricated enclosures may be used to cover exposed air cleaners,
material optional.
10.4.14
Factory or
fabricated rear spoiler permitted, fabricated rear spoiler will be a maximum
4”, as measured from the top of the rear deck lid. Spoiler may not exceed
the width of the rear deck.
10.4.15
Exterior nerf bars optional. Nerfing
not to extend more than 1 ½” past the body skin at any time, ends
must be capped or welded shut. Nerfing allowed on
both sides, between front and rear tires only. 1 ½” O.D. round or
maximum 1” X 2” square tubing is the only approved material for
exterior nerfing.
10.5
BUMPERS
10.5.1
Bumpers will be stock automotive type bumper of any
manufacturer.
10.5.2
Fabricated tube style bumper may be used if covered by
a factory stock rubber bumper cover or After-market front bumper cover.
10.5.3
All rear bumper covers will be stock or aftermarket for
make.
10.5.4
Front and rear bumpers will be strapped to the fenders
or quarter panels with a minimum 2” x 1/8” thick steel strap,
unless covered by a bumper cover. Strap should be securely bolted or welded in
place from the outside edge of the bumper to the outside edge of the body. Subject
to tech approval.
10.5.5
Height of bumpers are to be
compatible with other cars. Tech discretion.
10.5.6
All cars are to have tow hooks or tow points at the
front and rear of car.
10.5.7
Front bumper may be reinforced for radiator protection.
10.6
ROLL CAGE
10.6.1
A minimum six-point roll cage is mandatory.
10.6.2
Bars will be a minimum 1 ½” OD roll cage
tubing with a minimum thickness of .095 wall.
10.6.3
Gussets are required on all 90-degree joints.
10.6.4
Cage must have a minimum of three (3) door bars on the drivers side and 2 on the passenger side.
10.6.5
¼” inspection hole to be provided in the
main bar.
10.6.6
Any bar within drivers reach while belted into the seat
will be padded with industry standard roll bar padding.
10.6.7
Unibody. Roll cage must be securely fastened
to the floorboards by welding 1/8” thick minimum plate, 4” X
8” or 6” X 6” on top and/or underneath the floorboards using
3/8” bolts per mounting, or cage may be directly integrated into the sub
frame at all main points with full circumference welds.
10.6.8
Front hoops allowed to penetrate
the firewall. Hoop bracing behind the upper A-arms is approved. Radiator
support may be integrated into the hoop.
10.7
TRANSMISSION
10.7.1
Automatic transmission use is optional.
10.7.2
Transmission must me same make as body and engine.
10.7.3
Torque converters will stock stall speed.
10.7.4
Transmission coolers and cooler lines shall be
contained outside of the driver’s compartment. It also must be located in
front of the front firewall or behind the rear firewall, no exceptions.
10.7.5
Manual gearboxes will be stock for make with no alterations.
10.7.6
NHRA approved explosion proof bell housing for manuals
or a transmission blanket for automatics is recommended.
10.8
REAR END
10.8.1
Any rear end may be used, all
mounting points must be made to be direct bolt in to receiving car. Quick
change rear ends are not approved. Gusseting from the pumpkin to the axel
housing is permitted.
10.8.2
Gear ratio optional.
10.8.3
Welding, mini spool or full spool may lock
differentials.
10.8.4
No posi-trac, limited slip,
Gold trac or Detroit Lockers.
10.8.5
Floater rear ends not approved.
10.8.6
Aftermarket axel allowed on the RR.
10.9
SUSPENSION /
CHASSIS
10.9.1
Only 4 cylinder, 4 passenger
vehicle, foreign or domestic car or truck permitted.
10.9.2
RWD or FWD permitted. 4WD not permitted
10.9.3
Frame and/or Unibody must be
maintained for structural integrity from front to rear suspension. This means
that the stock floor pan will be complete from the front firewall to the rear
firewall.
10.9.4
Wheel base will remain stock for the chassis/floor pan
being used.
10.9.5
All suspension components will be stock for make of
chassis unless otherwise specified in these rules.
10.9.6
Chassis mount or suspension parts may not be altered to
accept or be accepted in to stock location.
10.9.7
Hubs or rotors may be redressed to accommodate 5 lug
wheels and larger lug studs. FOR SAFETY
PURPOSES ONLY.
10.9.8
Drilling, grinding or machining of suspension parts for
the purpose of reducing weight is permitted.
10.9.9
Shocks and struts must be stock type and mount in stock
location. Notching of RF Strut tower bolt holes is permitted for camber
adjustment. Stock
Towers will remain in
place but may be trimmed. Support may be integrated through the front hoop.
Aftermarket camber plates may be used.
10.9.10
Front coil spring type, size and height is optional. No adjustable spacers on top of the spring
allowed. No weight jacking bolts or devices of any kind allowed.
10.9.11
Torsion bars will be stock or stock type replacement
only.
10.9.12
Leaf spring cars
will remain leaf spring cars. Stacks may be altered. Any spacers or lowering
blocks used in the leaf stack must be securely mounted. Front and rear mounts
will be stock. No threaded or adjustable jacking devices approved. Adjustable
rear shackles are approved.
10.9.13
Rear coils
springs of any type approved. Shims or spacers may be used to raise or lower
either corner of the car. No
threaded or adjustable jacking devices approved. Spring pockets may not be
altered or replaced and will remain in stock location.
10.9.14
All suspension parts will be stock for make replacement
or OEM dimension replacement parts unless otherwise noted.
10.9.15
Sway bar
type, mounting and location is optional.
10.9.16
Use of twisties and spring
rubbers are approved.
10.9.17
Redress, drilling and grinding deemed an non-performance enhancing safety upgrade will be allowed,
subject to tech approval.
10.9.18
Poly or steel bushings approved for front or rear
components.
10.9.19
Front and rear
shocks must be stock or stock type replacement and mount in stock location,
on stock mounts.
10.10
BRAKES
10.10.1
All four corners must be stock and in working order.
Stock swaps of the same make for larger or disc brakes allowed in front.
10.10.2
Rear disc brakes are not allowed, unless stock for make
and model of rear end being used
10.10.3
All brake components will be stock for chassis being
used unless otherwise provided in these rules. Includes master cylinders,
calipers, rotors and hubs.
10.10.4
Shoes and pads are optional provided they are used in
stock caliper or drum.
10.11
WHEELS
10.11.1
Steel wheel not to exceed 8” in width.
10.11.2
Heavy duty, aftermarket or racing style wheels are
recommended on all four corners.
10.11.3
Minimum ½” wheel studs mandatory on the
right front wheel
10.11.4
13”, 14” or 15” wheels are approved.
10.11.5
Back spacing is optional.
10.12
TIRES
10.12.1
Maximum 205 series tire street legal tire, DOT
approved.
10.12.2
Tread compound softer than 380 will not be permitted. Compound branding on
tire being used must be painted orange.
10.12.3 Minimum tread depth of 2/32.
10.12.4
Chemical softening of tires is prohibited.
10.12.5
Tire must be of a manufacturer approved by DCS
Entertainment Inc. Approved manufacturers to be
determined as provided by addendum.
10.12.6
Tires may not extend outward
beyond the fender more than 3” from the widest part of the fender well.
10.12 RADIATOR
10.13.1
One radiator of any type allowed.
10.13.2
Must mount in stock location and be contained under the
hood and may not interfere with body lines.
10.13.3
Mounting optional.
10.13.4
One quart over flow tank required.
10.14 FUEL SUPPLY
10.14.1
Commercially produced fuel cell is mandatory. See
Speedway Minimum Specifications for installation instructions.
10.14.2
Rubber line passing through the driver’s
compartment will be contained in conduit or pipe from the front firewall to the
rear firewall. Braided steel high
pressure fuel line approved.
10.14.3
Fuel pumps must be factory type replacement. Electric
pumps must have oil pressure shut off switch. (If engine dies, fuel pump must
shut down immediately.)
10.14.4
Pump fuel, racing fuels and Av-gas approved. No alcohol
or additives approved.
10.15 ELECTRICAL
10.15.1
Any coil type, battery powered ignition approved.
10.15.2
Magnetos not approved.
10.15.3
Alternator is optional. Car must start on it’s own power.
10.15.4
See section 3, Speedway Minimum Specifications for
battery mounting requirements.
10.16 EXHAUST
10.16.1
Mufflers will be mandatory
10.16.2
Headers are approved.
10.16.3
Exhaust systems that enter the drivers
compartment will be completely enclosed with minimum 22 gauge sheet metal.
Shielding the driver, pit crew and safety crew from being burned.
10.16.4
Exhaust must exit behind the driver and be no more than
16” from the ground as measured from the top of the exhaust pipe. Exhaust
must exit behind and away from the driver and away from the fuel supply.
10.17 SEAT
10.17.1
Aluminum racing seat required. Steel framework around
the seat is recommended. Installation is subject to tech approval.
10.18 ENGINE FAN
10.18.1
Mechanical or electric fan only, after-market allowed.
10.18.2
Fan must be shrouded, must cover both sides and top.
10.19 FIRE EXTINGUISHER
10.19.1
Participants car must be equipped with a 2 ½ lb
fire extinguisher within easy reach of the driver
