Nosepiece and roof must match body style of car.
All cars must have a minimum of one inch (1”) and a maximum of two (2”)
inches of roll at top of fenders, doors, and quarter panels. A sharp edge will
not be permitted. Body roll must go from sides over interior, not interior over
and firewall must cover the driver’s area and be constructed to provide
seat must remain in the same general area as the general design of the car.
E. Windshield screen
or bars are mandatory.
Legible numbers, at least eighteen inches (18”) high are required on each
side of the car and roof.
No fins or raised lips of any kind are permitted anywhere along the entire length
of the car.
H. Body line
must be a smooth even line from front to rear.
No “slope noses” or “wedge cars” permitted. Noses must
be stock appearing, subject to Series template.
No “belly pans” or any type of enclosure on bottom of car is permitted.
Skid plate to protect oil pan is permitted.
No wings or tunnels of any kind are permitted underneath the body or chassis of
the car. A maximum of one (1) stone deflector, for rear mounted oil pumps, oil
filters, and for the main oil tank will be permitted. The deflector may be made
of steel, aluminum, or heavy gauge wire. The cover may only be mounted near the
unit it is designed to protect with a maximum size of 18”x 18” and
mounted only from the upper right frame rail to the lower right frame rail.
L. All non-approved bodies
will be assessed a fifty pound (50#) minimum weight penalty.
No panels of any kind under the rear deck running from the front to the rear of
N. Any air cleaner
scoops used must be positioned in front of or around the air cleaner and cannot
exceed one (1”) inch in height above any part of the air cleaner. The scoop
cannot be designed with fins or raised edges to direct airflow. The scoop cannot
extend behind the rear of the air cleaner and must have a maximum width of seventeen
inches (17”) at the rear, with a maximum of ten inches (10”) width
at the front and cannot have more than one inch (1”) opening from the in
height at the front.
No adjustable shocks, hydraulic or pneumatic weight jacks, trackers, MSD boxes
or similar adjustable components of any kind are permitted inside the cockpit
of the car. Taping over of any adjuster is not permitted. The offending component
must be removed from the cockpit.
All stock nosepieces must be approved by Lucas Oil Late Model Dirt Series Technical
The nose piece must have a headlight decal package attached. One warning will
be permitted and then the car must run contrasting color tape in the shape of
must be made of molded type material.
Two piece noses must be fastened together in center. No spacers to gain width
D. The nosepiece
must be mounted so as not to alter its original shape.
No material can be removed from the nosepiece. No cutting from bottom, top or
sides is permitted.
No adding to the bottom of the nosepiece in the front achieve lower ground clearance
G. A stock
nosepiece can extend a maximum of forty-eight inches (48") from the center
of the front hub to the farthest point extending forward.
Front fender flairs must be made of plastic and cannot alter the original shape
of the nosepiece. The front fender flairs cannot extend beyond
the front tire more than one inch (1") in width with wheels pointed straight.
fender flairs must have collapsible support.
ROOF AND ROOF SUPPORTS
The roof length size must be a minimum of forty-four inches (44") to a
maximum of fifty-four inches (54").
The roof width size must be a minimum of forty-eight inches (48") to a
maximum of fifty-two inches (52").
Roof must be stock appearing and mounted level.
Roof height must be between forty-five inches (45”) and forty-eight (48”)
from the ground.
The roof must be mounted parallel to body and near center of the car.
A maximum one and one half inch (1.5”) roll, tuned downward, is permitted
along the front edge of the roof. A maximum one-inch (1”) roll turned downward
is permitted along the rear edge of the roof. (Roll permitted to help strengthen
G. No flat or odd
shaped roofs permitted.
All roof side panels must extend to the edge of the body. Maximum Roof side panel
window size – seventeen inches (17”) at the top, forty-three inches
(43”) maximum at the bottom. The window area may be covered with clear Lexan
or transparent material. Both roof support openings must be covered or both must
be left open. Decals will be permitted but must meet the dimensions in the drawing
and must be approved by the Technical Inspector. Maximum two inch (2”) bow
in either direction in rear roof side panels is permitted.
Front posts must be flat and if uniform width from top to bottom – four
inch (4”) maximum width.
Any sun shields, four inch (4”) maximum, must be able to hinge for easy
exiting of car.
FENDERS AND HOOD
Must be level and flat from left to right side of car.
Fenders not permitted to gain height from rear to front of car.
No part of fender or hood can be outside of the body line.
The front fender can be a maximum of thirty six inches in height. Height is measured
vertically from the ground to the top of the fender behind the front tires.
Door to door cannot exceed seventy-six inches in width at the top of the doors.
B. Door to door cannot
exceed eighty two inches in width at the bottom in the center of the car.
C. Doors cannot exceed thirty-six
inches in height measured from the ground.
At no point can the door sides break in towards the center of the car between
the top and bottom measurements.
The minimum ground clearance permitted is three inches.
No offset quarter panels permitted. Must be equally tapered towards the center
of the car.
clearance from body must be a minimum of tow inches (2”). No wheel skirts
C. At no
point can quarter panel sides break in towards center of the car.
No aluminum frames permitted in construction of car.
Minimum 103” wheelbase.
Rectangle or Square Tubing:
The frame of all cars must be constructed of
two inch (2”) by two-inch (2”) minimum Rectangular or square tubing
with a minimum of eight inch (8”) circumference and a minimum of eighty-three
thousands inch (.083”) wall thickness.
The frame of all
cars must be constructed of a minimum of one and three-quarter (1¾”)
round tubing and must have a wall thickness of eighty-three thousands inch (.083”)
wall thickness minimum.
If rear bumper is stubbed, it may only extend a maximum of eight inches (8”)
beyond frame. Any stubbed rear bumpers that extend eight inches (8”) or
more beyond frame must be rounded and directed towards the front of the car.
F. It is recommended that
all cars be equipped with a tow hook or strap.
All battery supports must be braced in two axis - two horizontal and one vertical.
Cars must have a suitable steel roll cage in drivers’ compartment including
roll bars are mandatory and must extend into the door panels.
A minimum of three (3) bars must be used on the left side of the car. Each bar
must be a minimum of one and one-half inch (1½’) in diameter with
a minimum thickness of ninety-five thousands inch (.065”).
Roll cage must be welded to the frame.
Roll cage must be above the drivers’ helmet.
No “fin-shaped” or “foil-shaped” add-ons permitted on
any part of the roll cage. The entire roll cage must be constructed of round tubing
Interior is permitted to be dropped to the middle of the car a maximum of three
inches (3”) below the top of doors and a minimum of twelve inches (12”)
below the roll cage.
Interior must gradually taper up to the quarter panel height and be level for
thirty-two inches (32”) from the rear of the quarter panel.
Interior must be fastened flush at the top of the door and quarter panels and
may taper gradually towards the center if the car not creating a “lip effect”.
D. Interior must run in
a straight line from behind the drivers’ seat to the rear spoiler.
E. If interior is flat through
the car, it must maintain a twelve-inch (12”) clearance from roll cage for
easy exciting from either side of the car.
All cars with interior panels must at NO point in the car be over three inches
(3”) in height. The portion of the panel running beside the driver
must taper to zero or end in line with the steering wheel.
If interior is dropped at firewall, that portion of the firewall must be filled
for safety reasons
Rear spoiler must be manufactured of material of adequate strength such as Lexan
spoiler material maximum eight-inch (8”) height measured for deck to tip
of material. Maximum seventy-two inch (72”) width.
Rear spoiler is not permitted to be suspended above the deck to create a “wing
D. Rear spoiler
must begin where quarter panels end. No extended decks permitted.
Maximum of three (3) rear spoiler supports. Option of two (2) additional one inch
(1”) aluminum braces.
Spoiler supports cannot be mounted wider than the top of the quarter panel.
Engines must be based on a factory design and must be naturally aspirated. Aluminum
or steel blocks permitted.
No fuel injection devices, electric fuel pumps, turbo chargers, or blowers permitted.
C. Magnetos are permitted.
However, the engine must have an operating self-starter.
The engine may be set back a maximum of six inches from the center of ball joint
to front spark plug hole.
Carburetor is limited to one four barrel.
All engines limited to one spark plug and two valves per cylinder.
An approved fuel cell (32 gallon maximum) must be securely mounted in the trunk
area of the car inside a 20-gauge metal box supported by two 1/8 x 2" steel
B. A firewall
must be installed between the fuel tank and drivers’ compartment.
C. Gasoline or Alcohol only. Nitrous
gases or other nitrate additives are not permitted.
TRANSMISSION, CLUTCH AND
Any transmission with working reverse and working forward gears is permitted.
B. Manual transmission
must be equipped with an operational clutch.
Automatic transmissions are permitted.
The transmission must be mounted to the rear of the engine and lead to one drive
E. No “live-axle”
rear-ends are permitted.
No independent rear suspensions are permitted.
All rear-ends using a cable to lock-in the rear-end must have the cable mounted
outside the cockpit area and not in reach of the driver.
All drive shafts must be a minimum of two inches in diameter. All drive shafts
must be painted silver or white.
Only one drive shaft is permitted.
The drive shaft must be protected with a secure drive shaft hoop or sling.
Open Tire Rule. Any Compound, Any BrandF.
No tire softeners or conditioners.
Largest permitted tire is twenty-nine inches (29”) by eleven inches (11”)
by fifteen inches (15”).
Maximum circumference permitted is ninety-three inches (93”).
Maximum cross section width permitted is sixteen and three-quarters inches (16
Hoops for inspection must pass over tire freely.
Steel, aluminum, carbon-fiber or plastic wheels are allowed.
Wheels must be mounted with lug nuts: no knock-off mounting devices are allowed.
C. Maximum wheel width
is fourteen inches (14”).
Maximum width outside of front tires is ninety inches (90”).
Maximum width outside of rear tires is eighty-eight inches (88”).
Must be equipped with sufficient braking system. |
Shocks must be constructed of aluminum or steel. Remote reservoirs are permitted.
B. Coil springs must
be steel. Leaf springs may be composite or steel.
REMOTE CONTROL SUSPENSION DEVICES
NO "in-cockpit driver controlled" suspension devices permitted. NO weight
jacks of any kind permitted. (This includes fifth [5th] coils, etc.). ANY driver
using "in-cockpit driver controlled" suspension devices or weight jacks
WILL BE DISQUALIFIED FROM COMPETITION!
Mufflers are MANDATORY. Only variance of this rule will be where not required
by host track.
Exhaust is not permitted to be directed towards ground. Exhaust must be parallel
to the ground.
All Traction Control Devices are strictly prohibited during any form or portion
of a Lucas Oil Late Model Dirt Series sanctioned event, race or practice/test
B. All traction
control devices whether electronically controlled in the ignition system, wheel
sensors or any means of measuring ground speed to control wheel spin are strictly
prohibited. All devices not mentioned in the above that are found to control wheel
spin, timing or fuel delivery control will be considered strictly prohibited.
C. At NO time during
the 2006 season and beyond will there be any type of ping control devices, dial
a chip controls, timing controls or any modifications to the ignition control
boxes, distributors, or any other part of the Ignition System. This includes any
add on component or components inside or outside the cockpit of any competitors
racecar. There shall be NO driver controlled wheel spin, timing or fuel delivery
control devices in the cockpit area of any racecar.
A competitor found with any of the above mentioned will lose the complete device
permanently and will lose all points earned to that point in the season. NOTE:
A competitor may be asked for his electronic ignition at any time by the Tech.
Director to be sent for testing and inspection. Failure to hand over the electronic
ignition will result in the holding of any purse monies won.
A minimum weight limit of 2300lbs for Aluminum blocks & 2200lbs for Steel
blocks will be in effect at all Lucas Oil Late Model Dirt Series sanctioned events.
B. After each race,
whether Heat, Last Chance or Feature, an additional weight allowance will be given
at the rate of 1 lb. per lap for fuel burn off, 10 laps = 10 lb.; 50 laps = 50
lb.; 100 laps = 100 lb. etc. Allowance will also be given for laps run under Caution,
at the discretion of the Series Officials.
The scales used by the Lucas Oil Late Model Dirt Series will be considered the
official scales for the event.
Scales will be available at all Lucas Oil Late Model Dirt Series sanctioned events.
E. Lucas Oil Late
Model Dirt Series officials have the right and duty to weigh any car at the official’s
attached weights must be securely attached to the frame, painted white or bright
silver and have the car number clearly displayed on them. Weights of up to 50
pounds must be secured by two half inch Grade 5 bolts on two weight clamps. Weights
secured by one bolt and/or held on by a means other than accepted by the Tech
Inspector will not be permitted. NO ALL THREAD will be permitted. Due to the high
risk factor involved, any car that loses lead weight during an event may be fined
or face disqualification.
No weights may be attached to rear bumper.
No driver-operated weight adjustment devices are permitted.
NO batteries permitted to be located in the drivers’ compartment.
B. ALL cars MUST have an
approved fire extinguisher securely mounted within reach of the driver.
C. Nylon mesh window screens
are recommended but not required.
Racing seats and racing seat belts with shoulder harness are REQUIRED and MUST
securely fasten to the car frame.
A drive line "sling" is REQUIRED.
An approved racing helmet is REQUIRED.
Fire resistant driving uniforms are REQUIRED.
Fire resistant gloves, underwear and socks are recommended.
Eighteen (18)-gauge steel or one and one-eighth inch (1/8") aluminum "cockpit
tub" to protect front, sides, and rear of driver is HIGHLY RECOMMENDED.
J. Weight ballast MUST
be painted white or yellow and have number of car painted on them.
Added weight or ballast MUST be securely fastened.
CAR CONSTRUCTION INFRACTION PENALTIES
You may be given a simple warning.
You may be asked to correct the infraction.
You may be assessed a weight penalty of 25 lbs. to 100 lbs.
You may be disqualified when found and/or noticed with an infraction.
You may choose to leave.
Any driver or crew member found altering the racing surface will be disqualified.
B. NO two-way radios.
C. NO "in-cockpit
driver controlled" electronic devices of any kind permitted.
NO computer controlled devices of any kind permitted.
NO rearview mirrors of any kind permitted.