2014 Semi-Late Model Sportsman

(limited/crate/steel block lm)
All cars must have wrecker hookup. All cars should have 5 pound minimum fire extinguisher in reach
of driver. All drivers must wear flame retardant fire suit, shoes and gloves. Window nets are highly recommended for all cars. No radios,
communication equipment or mirrors permitted, including pit boards. No computer controlled equipment.
 

1. MOTOR
    Weight limits may be adjusted during the season for competition.
    ALL CARS—V8 motors only. Motor must be based on factory design and naturally aspirated. 1 spark plug and 2 valves per cylinder. No
    titanium or exotic metals except titanium retainers—OK. No fuel injection, turbo chargers or blowers. 6” maximum setback measured from
    center of left front spark plug to center of ball joint OR 25 ½” maximum setback measured from center of ball joint to front of motor plate.
2. EXHAUST
    ALL CARS—Headers permitted. Exhaust pipes may NOT point towards ground. Mufflers are HIGHLY recommended for all cars.
3. FUEL
    ALL CARS—Gasoline or alcohol. No nitrous oxide, nitro-methane or propylene oxide. No electric fuel pumps or pressurized fuel systems.
    Mechanical or belt-driven fuel pumps only. Fuel lines should not pass through driver’s compartment.
4. CARBURETOR
    One 2 or 4-barrel open carburetor.
5. DISTRIBUTOR
    ALL CARS—Any battery powered ignition, MSD, Accel, Mallory or equivalent system permitted. No coil pack or individual cylinder systems.
6. TIRES
    ALL CARS—11” maximum tire treadwidth. 16 3/4” maximum cross section. Tire hoop must pass freely over tire. 93” maximum
    circumference. Tires must have all manufacturer’s stamps intact. 32 minimum tire hardenss after race, verified by durometer. Only American
    Racer 44, Hoosier 15/1300 or harder compounds permitted—no softer compounds allowed on all wheels except inside front tire may be open
    compound. Hoosier D21, D55, FT200, FT400 and FT600—OK. The track durometer is the official measuring device. 11” maximum
    circumference grooving—no tolerance. No buffing or taping over tire size markings.
7. WHEELS
    ALL CARS—14” maximum steel or aluminum wheels only. No plastic wheels, fiberglass or carbon fiber wheels. Bead locks allowed. Wheels
    must be held on by bolt-type lug nuts, no knock-off type mounting permitted. 90” maximum outside width at wheels with wheels pointed
    straight.
8. TRACTION CONTROL
    ALL CARS—All traction control devices using wheel sensors are NOT permitted. Adjustable ping control devices, dial a chip controls, timing
    controls or automated throttle controls are NOT allowed in the cockpit or any other location accessible by driver. Any remote control
    components or data acquisition equipment are NOT permitted.
9. REAR AXLE
    ALL CARS—Any rear end permitted. Quick change—OK. No live-axle rear ends. Aluminum axle tubes permitted. Only floater wide-five
    hub assembly permitted.
10. TRANSMISSION AND DRIVE SHAFT
    ALL CARS—Any aluminum or steel transmission permitted. Racing and automatic transmission—OK. Transmission and clutch should have
    explosion-proof bell housing or 358 degree ½” steel scatter shield securely mounted to car. Any type clutch permitted and clutch should have
    scatter shield. Multi-disc clutch permitted and can have aluminum bell housing. No in and out boxes. Transmission should be bolted to the
    motor and must have working reverse gear. Only one drive shaft permitted. All drive shafts should be painted white and should be
    surrounded by two 3” steel safety loops or sling mounted to frame.
11. BODY
    ALL CARS—Body must meet all specifications listed on diagram. All body panels must be solid and must be made of metal or plastic—no
    holes, gaps, slots, perforated materials etc. Body line must be a flowing line from front to rear. 38” maximum rear deck height. 37” maximum
    front fender and door height. 48” maximum rear quarterpanel length measured from center of rear wheel. 53” maximum length from center of
    rear wheel to top corner of quarterpanel. 3” minimum ground clearance. 2” minimum clearance around all wheels. No ridges, fins or raised
    edges on body except roof bead rolls.
    ALL CARS—Fenders must be level from side to side. Quarterpanels must be same length and cannot extend higher than rear deck. Rear
    deck must be level 20” forward from rear of quarterpanel and must extend between quarterpanels. Quarterpanels and doors may not dish
    inward. Skirting may not extend behind quarterpanel.
    ALL CARS—76” maximum body width at top deck. 82” maximum body width at bottom of doors measured at the center of the car. 86”
    maximum width at rear of quarterpanels from bottom to 19” off ground. All body width variations must taper evenly on both sides.
    ALL CARS—All fenders, doors and quarterpanels should roll inward ½” to 1” at top, with sides over upper body. No sharp or jagged edges,
    fasteners, etc. No wings or tunnels permitted under body or chassis. Unapproved bodies may be assessed a 50 pound weight penalty.
12. ROOF
    ALL CARS—Approved roof and roof supports should match nosepiece. Minimum 44” long x 48”
    wide, maximum 54” long x 52” wide. 45” minimum height from ground, 48” maximum. Roof must be mounted near center of car, parallel to
    the deck and level. Roofline and side panel window contours should be stock appearing and match nosepiece. Roofline MUST be rounded—
    no flat, wedge, bellied or hollow roofs.
    ALL CARS—Rear roof and front roof supports mandatory. Rear roof supports may extend 43” from rear of driver’s side window. Rear roof
    supports must taper downward evenly from outside edges of roof with a 2” maximum outward bow both to the sides and rear. 17” maximum
    at top of rear roof support. 10” high x 15” long minimum rear support window is optional and recommended for appearance. Rear support
    window may be filled with clear lexan. 2” minimum front roof post width, 4” maximum. Front roof post bracing may extend 7” vertical and
    horizontal. Front roof posts must extend forward to the rear of hood. ½” maximum bead rolls permitted on roof running from front to rear in
    direction, 4 maximum including edge bead rolls.
    ALL CARS—Door window opening height should be minimum 12” measured from deck to roof. 1.5” maximum roll down permitted along front
    and rear edge of roof. Roof may not turn upward. 4” maximum hinged sun shield permitted in front of driver. 25 pound penalty for
    unapproved roofs.
13. NOSEPIECE, FENDER FLARES AND HOOD
    ALL CARS—Approved stock appearing molded nosepiece required and should match roof and roof supports. Nosepiece must be made of
    flexible material. 15” minimum nosepiece height measured from bottom of nosepiece to where sheet metal is attached, following the angle of
    the nosepiece. Nose must be mounted level. 2 piece nose cannot be widened. 52” maximum nosepiece extension measured from center of
    front hub with wheels turned straight. 3” minimum ground clearance. Nosepiece may not be modified or cut. Unapproved nosepieces may be
    assessed a 50 to 125 pound penalty. Tech inspector may require that any unapproved nosepiece must be changed.
    ALL CARS—37” maximum front fender height from ground. Plastic front fender flares permitted, but cannot alter original shape of nosepiece
    and must have collapsible support (no steel supports). Fender flares may extend 1” outside front wheels when pointed straight. 90”
    maximum fender flare width. Fender flares may extend maximum 2” above fenders.
    ALL CARS—Hood must be level from side to side. Scoop may be maximum of 1” above air cleaner. No raised edges on scoop.
14. SPOILERS
    Spoiler measurements may be adjusted during the season for competition.
    ALL CARS—Spoiler and braces must meet all specifications listed on diagram. 72” maximum width. Maximum 3 solid side spoilers
    permitted. Side spoilers must be mounted at rear of deck and outer side spoilers must be at outside edge of deck. Side spoiler must taper
    down evenly from maximum to minimum height and may be rounded or triangular in shape. 2 additional 1” open aluminum braces permitted.
    Spoiler should be clear lexan or aluminum. No driver-adjustable spoilers. Spoiler must be mounted at rear of deck. Spoiler may not be
    suspended to create a wing. No other spoilers or wings.
15. FRAME
    ALL CARS—103” minimum wheelbase. All frames should be constructed of 2”x 2” square steel tubing or 1 ¾” outside diameter round steel
    tubing, with .083”minimum material thickness. All round tubing frame cars should use 4130 chrome molly steel or DOM in frame construction.
    No holes may be cut in frame. All other chassis tubing should 1 ¾” at outside diameter and have a minimum thickness of .083”.
    ALL CARS—Car should have horizontal safety bar constructed from same steel tubing as frame, mounted behind fuel cell and securely
    welded to frame. Rear bumper should be at least 4” behind fuel cell. Center of rear bumper and safety bar should be at rear deck center
    height, approximately 19” from the ground and should be at least as wide as frame. Tubing should also extend downward to form a horizontal
    bar at the bottom height of the fuel cell, with additional vertical and diagonal tubing bracing the lower tubing to the rear bumper and the safety
    bar. Lower tubing should be at least as wide as fuel cell. No part of the fuel cell should be below the protective tubing. Any rear bumper that
    extends more than 8” from the rear of frame should be rounded and directed toward the front of car. Bumper should not have sharp edges.
    No external rub rails.
16. SUSPENSION
    ALL CARS—No straight front axles. Any type steel or aluminum shocks allowed. Coilovers—OK. Suspension must be mechanical—no
    computer or electronic components. Front suspension must be stock configuration. No center steering. No torsion bar suspensions.
17. BRAKES
    ALL CARS—All cars must have 4 wheel braking system. Steel brake rotors only. No plastic brake lines. Steel braided brake lines—OK.
18. STARTER AND BATTERY
    ALL CARS—All cars must be self starting. Failure to start during a race will result in disqualification. Battery should be located in a safe area
    and covered with a metal fireproof box. Battery should not be in driver compartment. Battery disconnect kill switch to shut down motor highly
    recommended mounted in reach of driver and should be clearly labeled for safety crew.
19. FUEL CELL
    ALL CARS—Racing-approved fuel cell should have 35 gallon maximum capacity and should be securely mounted inside a 20 gauge steel or
.    060” aluminum metal box and secured to frame with a minimum of two 2” x 1/8” thick steel straps around entire fuel cell. Minimum 7/16”
    bolts should be used to mount the fuel cell. The fuel pick up should be on the top or right side of the fuel cell, be constructed of steel and
    should have a check valve in case of roll over. Fuel cell should be mounted in square tubing frame. Fuel cell should be mounted behind the
    rear axle and between the rear tires, at least 4” in front of the rear bumper. 9” minimum fuel cell ground clearance. No part of the fuel cell
    should be lower than the rear end housing. Car number must be displayed on fuel cell, 6” minimum height. No pressurized fuel systems.
20. ROLL CAGE
    ALL CARS—4-post, box-type roll cage should be constructed of 1 ½” minimum outside diameter and
    .095 minimum material thickness steel tubing. Roll cage should have at least 3 horizontal bars at driver’s side door and 2 horizontal bars at
    passenger side door, extended outward into door panels with 2 vertical bars between each horizontal bar as additional support. An extra
    vertical side brace bar is recommended on the left side in line with steering wheel. Door bars should be 1 ½” in diameter with a minimum
    thickness of .065. Both door window areas should remain open and unblocked by roll cage bars for easy exit. Roll cage should extend
    forward on driver’s side to protect foot area completely. Roll cage should be welded to frame in at least 6 places (in addition to diagonal
    bracing) and welded together at all intersecting points. Diagonal bars should brace roll cage at rear, and should run from frame to top of roll
    cage.
    ALL CARS—Top of roll cage should be at least 2” above top of driver’s helmet. All areas of the cockpit should have at least 11” to 12” of
    clearance below the roll cage and roof. All roll cage bars within reach of driver should be covered with non-flammable foam padding certified to
    SFI spec 45.1. Other than padding, roll cage must remain exposed above top of door with no aerodynamic effects. Right-side padded
    headrest or head net recommended attached to roll cage. Bars or wire mesh in windshield and driver’s side quick-release window net certified
    to SFI spec 27.1 are highly recommended.
21. FIREWALLS AND INTERIOR
    ALL CARS—A full metal firewall constructed from 18 guage steel or 1-1/8” thick aluminum should be joined to seal off driver compartment at
    front, rear, sides and floorboard. Full metal floorboard. Top of interior may be maximum of 3” below top of doors. The start of the dropped
    interior should remain closed as part of the firewall. The interior must taper up gradually to be even with the rear quaterpanel and level for 20”
    from rear of deck and quaterpanel. Interior must be mounted flush with outside body panels. Interior clearance should be 11” to 12” minimum
    below roll cage at all points for easy exit. Onboard fire suppression system recommended.
22. SEAT AND SAFETY BELT
    ALL CARS—Full containment, metal racing-approved seat with padded headrest should be securely attached to frame. 3”, 5, 6 or 7-point,
    quick release racing belt with double harness certified to SFI spec 16.1. 7-point system is highly recommended. Seat and belts should be
    mounted to the chassis with grade 5 or better hardware. Mounts should run in the same direction to secure the belt. Belt should not come in
    contact with sharp edges. Safety belts should be replaced if 2 years old, and all worn or damaged safety belts should be replaced. Quickrelease,
    racing-type steering should be used.
23. FIRE SUIT AND HELMET
    ALL CARS—Drivers should have flame retardant firesuit certified to SFI spec 3.2A/5 and racing approved full-face helmet with face sheild
    certified to Snell SA2000, SA2005 or SA2010 standard or SFI spec 31.1A, 31.1/2005 or 31.1/2010. Gloves certified to SFI spec 3.5/5 highly
    recommended. Nomex shoes, socks, and hood highly recommended. Head and neck restraint system certified to SFI spec 38.1 and arm
    restraints are highly recommended.
24. WEIGHT
    Weight limits may be adjusted during the season for competition.
    ALL CARS— Weight limits are after race and include driver. All weights should be solid material, entirely painted white or a bright color and
    marked with car number. Each weight should be 50 pound maximum. Weights should be bolted to frame with two ½” Grade 5 bolts on two
    weight clamps or secured with steel plate. Weights should be attached below the body decking. No weights should be attached to rear
    bumper or in driver’s area. Weights should not be lead pellets or liquid. Each weight should be bolted to the frame individually and should not
    be stacked on another weight.
 

RULEBOOK DISCLAIMER: The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum
acceptable requirements for such events. These rules shall govern the condition of all events, and, by participating in these events, all participants are deemed to have
complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OR SAFETY SHALL RESULT FROM PUBLICATIONS OF OR COMPLIANCE WITH THESE RULES
AND/OR REGULATIONS. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to a participant, spectator or official.
The race director shall be empowered to permit reasonable and appropriate deviations from any of the specifications herein or impose any further restrictions that in his
opinion do not alter the minimum acceptable requirements. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM SUCH ALTERATION OF
SPECIFICATIONS. Any interpretation or deviation of these rules is left to the discretion of the officials. Their decision is final.