As of January 28, 2013
Southern Mod Lite Racing Series shall hereafter be referred to as SMLRS throughout the rules and descriptions. Middle Tennessee Mod Lite shall be referred to as MTML. 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 of 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. By competing in SMLRS/MTML sanctioned events, all participants agree to abide by the rules that are listed below and agree to the SMLRS/MTML official's decision or penalties set forth by these rules.

The race director shall be empowered to permit reasonable and appropriate deviation 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.

GENERAL RULES
1. SMLRS/MTML race rules shall apply to all SMLRS sanctioned events.
2. All SMLRS/MTML vehicles are subject to inspection at any time.
3. Approval of a SMLRS/MTML vehicle by the inspector shall mean only that the vehicle is approved for participation in a competitive event and shall not be construed in any way to mean that the inspected SMLRS/MTML vehicle is guaranteed mechanically sound. Be it further declared that the inspector shall not be liable, nor shall the sanctioning body, for any mechanical failure not for any losses, injuries or death resulting from same.

SPECIFICATIONS
1. BODY STYLES
Any car specifications not covered in these body specs are subject to SMLRS/MTML interpretation. Any significant performance advantage will be addressed on an individual basis. SMLRS/MTML reserves the right to determine what constitutes an unfair advantage.

(a) Modified appearing body style such as IMCA or DIRT modified. These are to be known as Modified Lite
body styles.

2. BODY REQUIREMENTS AND SPECIFICATIONS
MODIFIED LITE
The intent of these preceding specifications is to follow the bodyline and design of an exciting IMCA or DIRT  modified racecar.
2a. MODIFIED LITE
(a) OVERALL DIMENSIONS
A. 42" min 50" max from ground - total car height.
B. 124" maximum total length, bumper to bumper.
C. SIDES AND REAR QUARTER PANEL
1. 84" max - Door and rear quarter length.
D. 30" min 38" max - side height of rear quarter panel from the ground. 30" max height of quarter panel.
E. HOOD

1. No wings, spoilers, etc allowed. The hood should appear like an IMCA or DIRT modified.
2. 20" min 27" max - hood height excluding breather protectors (bottom of frame rail to top of hood). Ram air induction system prohibited. Rear of hood becomes part of windshield area rules. No part of nose section (in front of spindle centerline) may be wider than a maximum of 24". Hood may taper out to door panels at the rear.
F. ROOF PANEL
1. 40" min 48" max - length of roof panel. 36" min 42" max - width of roof.
No part of roof panel may have more than 14-degree of angle rake. No deflector of any type on upper sides or rear of roof panel. Roof entrance hatch optional.

G. REAR UPPER QUARTER PANEL
1. 20" min 38" max rear upper side panel may contain Plexiglas. Side panels maybe no higher than 3" at the rear of the straight line of quarter panel top edge. Side panel may be no higher than an imaginary line from the rear edge of roof panel to 3" above the top edge of the rear quarter panel.
H. SIDE WINDOW
1. 18" min side opening length. 10" minimum side opening height front and rear.
I. INTERIOR
1. 46" min 50" max - width of rear shelf and body panels. Rear shelf may have no more than a 5-degree max rake and may not be concave or convex in design. The rear frame area from the rear shelf downward a minimum of 16" must be completely enclosed the width of the frame. Louvers allowed, no holes.
J. ADDITIONAL INTERIOR SPECIFICATIONS
1. 36" min 56" max - length of right side pod area with max 30o. Left side pod may be altered for driver access.
2. Rear quarter distance from center of rear 20" min 30" max.
3. Cockpit cover with a max of ½" lip will be permitted providing the on/off cutoff switch is reachable from outside the car by safety personnel.
4. Deck lid height from ground 30" minimum, 36" maximum with NO rear lip extending upward.
5. Side pod may not extend rearward past the centerline of rear axle.
6. Body must be centered on chassis.
7. If windshield is used, it must be flat.
8. All body dimensions will be teched + or - ½" unless otherwise specified.
K. REAR SPOILER
1. Must be constructed of aluminum or lexan material.
2. Must be single blade and mounted to the rear of the interior body shelf and be no wider or higher than the inside of rear quarter panels. 50" max.
3. Maximum width of spoiler may not exceed 4".
4. May be mounted at any angle but may not extend beyond or above the rear quarter panel.
5. No bracing or supports on top, front, or back of spoiler blade permitted.

L. CAR WIDTH
1. Maximum car width to be 60" measured to the outside of the tires..
2. Maximum wheel base of 73" +/- 1".

3. Car must pass freely through a hoop 60-1/2' wide and 50" high..

3. WEIGHT
(a) Weight requirements shall adhere to the rules outlined under rule #11 - engine specifications.
(b) No weight outside of car body, i.e. on nerf bars
(c) Hood or roof support will be clearly marked with minimum weight as outlined in Engine Specification, Paragraph 11.

4. BUMPER DIMENSIONS
(a) Front maximum width 30", Bumper height 6" to 8" with 2-bar loop. Ground to top of bumper: 12" minimum, 16" maximum. Bumper may not extend more than 12" forward of front tires.
(b) Rear maximum width 56" with 3 vertical bars. Bumper height 6" to 8" with 2-bar configuration. Ground to top of bumper: 12" minimum, 18" maximum. May not extend more than 8" behind rear body panels. Additional push bumper may be added above the rear bumper to avoid damage from push vehicles.
(c) Bumpers must be hollow with max wall thickness of .125

5. FIREWALL
(a) Firewall must be metal and must completely separate engine compartment from cockpit. Engine protruding into cockpit must be enclosed.

6. WINDSHIELD
(a) Windshield must be Lexan, wire mesh, or protection bars. Lexan highly recommended when running asphalt. No Glass. All other cockpit areas must remain open. Deflectors may be used in front of driver. May be no wider than roll bar area.

7. NERF BARS
(a) Full length nerf bars between front and rear tires mandatory. Maximum outside diameter of 1.25" and .125 maximum thicknesses, must be hollow and may not extend out beyond tread width more than 1" at the rear only.

8. SEAT
(a) Seat must be high-backed aluminum, racing type. All cars will have a permanent bar located behind top of seat at shoulder level. Bottom of seat will not be more than 63" back measured from upper ball joint. Seat may be tilted back for added driver head clearance, however, no portion of the seat may be back more than 70" as measured above.

9. NUMBERS AND GRAPHICS
(a) Car number must be minimum 12" in height and 2" stroke. Must be displayed on each door and roof or trunk. Numbers in 4" size should be on front and rear of car to help with line-ups.

10. WHEELS AND TIRES
(a) Steel wheels only, minimum wall thickness .090", 13" only, Wheel width max. 8".
(b) Hoosier Racing Tires plated UDRA, TUSA, TUSA-S or TUSA-M: Hoosier RC1, RC3 or RC5: American Racer tires will be allowed. 40 durometer minimum before race for dirt and 50 durometer before the race for asphalt. Maximum tread width of 8".
(c) Bead lock rims are optional.

(d) Tires may not be altered from the original construction properties as per rubber consistency or tire construction specifications. This means no additives (internal or external) may be used on your tires.

(e) Tires may be grooved, sythed, and/or buffed.

11. ENGINE SPECIFICATIONS
There will be 1 weight division:
1. "STOCK" ENGINES - weight requirement 1260# - will be "Stock OEM" (no interchanging, swapping or changing the specifications of any part).
a) Aftermarket oil pans permitted.
b) May run aftermarket air filters. Stock velocity stacks are permitted. Aftermarket velocity stacks are NOT permitted.

c) May run the Gipro S01 Motorcycle Gear Indicator.

* Engines eligible for this program, Suzuki GSXR 1000, Honda CBR1000RR, Yamaha YZFR1, and
Kawasaki ZX10.
No 2011 engines or newer will be legal to compete. These engines will be reviewed and considered at a later date, but will not be considered for competition prior to the 2015 season. Stock 1000cc water cooled engines produced from 2000-2010 may compete. All engine components must remain stock as per engine year. OEM electronic system only with NO additions or modifications. Oil pans may be altered. Air filters allowed as per rule 1.B section 11. Racing gasoline is not permitted.
"General Motor" Specifications:
1. Four cycle, four cylinders maximum only. Must have working transmission, clutch, and starter with all parts in place. Complete Clutch assembly must remain in engine. External reverse boxes allowed. No air controlled shifting devices.
2. Charging system optional. Battery powered ignition system only. Alternator cover allowed.
3. No auxiliary starters.
4. Engines must be front mounted in engine compartment.
5. Engine setback: The "square of the engine" (rear fins of the jugs) may not extend rearward more than 17" from the center of front spindle. No part of the engine or transmission may extend rearward more than 21 inches from center of front spindle.
6. No after market fuel injection, and no turbos. No nitro, or nitrous oxide. OEM fuel injection must remain stock.
7. Engine must be cooled by original intent. May use extra fan or oil cooler.
8. Engine exhaust must include muffler and exit rearward if required by local track. All muffler devices must include baffles. MUFFLER MUST MEET LOCAL TRACK REGULATIONS, (IF MANDATORY)

9. No form of traction control permitted.

Engine Tech Procedures:
1. Cylinder cranking compression- minimum 100p.s.i., Maximum 220 p.s.i. per cylinder average of 4 cylinders, no variance, measured with a Snap-On compression gauge, part number EEPV303A, with adapters EEPV304A, EEPV306A or MT26J200, after ten (10) compression revolutions of cranking, 15-45 minutes following feature event.
2. Carburetors or Fuel Injection and all 4 spark plugs must be removed before checking compression.

12. BATTERY, FUEL SYSTEM
(a) Battery and fuel pump must be mounted outside driver compartment. Battery must be secure and held with non- rubber strap. Electric fuel pump allowed.
(b) Fuel cell mandatory, maximum 5 gallons, located in trunk.
(c) Pump gasoline only. NO RACING FUEL. 93.5 Octane MAXIMUM.
(d) Reinforced or steel braided line must be used in all high-pressure areas.
(e) A direct manual cutoff switch wired to ground circuit will be installed on the right side of cockpit. The emergency electrical cut off switch will be clearly located and marked.

13. DRIVE TRAIN
(a) Must use steel drive shaft from transmission to automotive rear end. Minimum 2.50" x .083" or 2" x .120".
(b) Quick change rear ends allowed with steel tubes only.
(c) Drive shaft tunnel must have minimum of 2 (3 recommended) 360-degree hoops between firewall and seat back. Must be fabricated of minimum .1875" X 1.5" steel bar. 1" X .095" steel tube highly recommended.
(d) Rear must be locked or have a solid spool.

14. FRAME AND ROLL CAGE
(a) Main frame members will be minimum of 1" X 2" x .120" wall rectangular steel tubing only. Mainframe rail consist of the length between the front lower a-arm cross member and the rear main roll bar upright. No aluminum
allowed in cage or frame.
(b) Main frames will have a minimum of 3 cross members between firewall and back of seat fabricated of same material as frame rails. Alternate material may be steel angle, min. .125" X 1.5" X 2". Cross-bracing in floor under driver strongly recommended. Rear frame rails at rear roll bar must be 34" max and 30" minimum outside dimension. Rear roll bar must meet same dimension as the frame it is mounted to. Frame may taper forward of driver seat area. Front engine area frame width must be 24: max and 20" min outside dimension. Left and right frame rails must be the same + or - ½".
(c) Roll cage must be DOM steel minimum 1.25" x .083" (.095 recommended) in all cars manufactured from 12/98 on. Clubs may grandfather older cars with 1" x .065" tubing. Cross-brace or diagonal strongly recommended in hoop over driver's head.
(d) All cars must have cage bars installed across door openings on both sides. Bars should be welded in place as part of roll cage. Minimum size 1" x .065". (1.25" x .095" recommended) cars with bars mounted on doors should have full doorframe and minimum of 2 horizontal cross bars. Minimum 1" x .083". Cars with bats mounted on doors must have 1/4" x 2" steel stops welded in on each side of opening, totaling a minimum of 4" on each end of door.
(e) It is required to have a steel bar with a minimum size of 1" X .065" from doorpost to doorpost, under the dash. Steel plate on driver's door bars recommended
(f) It is recommended that, if using rivets, body panels attach to tabs welded onto cage instead of drilling multiple holes into cage bars.
(g) No down tube frame cars allowed. Any bars going from cowl area to snout must remain below the upper line of hood.

15. SUSPENSION
(a) Front suspension must not extend rearward past the most forward panel of the firewall.
(b) Rear trailing arm/radius rod specifications:
1. Arms may have a maximum length of 30".
2. Torque-absorbing devices are permitted.
3. Maximum 3 radius rods or 3 link suspension
(c) Wheel offsets are allowed.
(d) Hub offsets are NOT allowed. Hubs front and rear must be within 1/2" distance from mainframe rail on either side of car, measured from center of rotor to vertical plane of frame rail.
(e) Coil-over shocks are the only allowable means of supporting the chassis. One shock and spring per wheel
only. Shock and spring must remain as one unit.
(f) Shocks must be of all-steel construction, non-adjustable type. May not be of a type that allows disassembly. Retail price of the shock may not exceed $100.
(g) No driver shall have the ability to adjust suspension from inside car.
(h) Straight front axles are prohibited. Local clubs may grandfather existing cars for competition.
(i) No leaf springs.
(j) No birdcage type rear linkage.
(k) Anti-roll (sway) bars permitted front or rear. Must be connected without adjustments to arm location.
(l) No torsion bar suspension system of any type allowed.
(m) The use of carbon fiber or titanium in any way is prohibited.

16. STEERING
(a) All steering components must have safety fasteners such as cotter pins or self-locking nuts.
(b) Manufactured quick-release steering wheel hubs mandatory.
(c) Rack and pinion steering is mandatory.

17. BRAKES
(a) All four wheels must have calipers and rotors.
(b) Rotors and calipers:
1. Steel rotors mandatory, .250 minimum thickness.
2. Steel OEM calipers or aluminum calipers.
3. Cutting & scalloping of rotors will be allowed with no rotor surface being less than 3/4" in width.
4. Drilling of rotors is permitted.
(c) Adjustable brake bias and wheel shut offs allowed.
(d) Competition-type master cylinders allowed.

18. SAFETY EQUIPMENT
(a) Fire bottle system HIGHLY recommended.
(b) Driver uniform will consist of:
1. Fire suit (single layer minimum, one or two-piece).
2. Fireproof gloves.
3. Fireproof shoes.
4. Approved helmet with Snell 95 or higher.
5. Full-face helmet.
6. Head and neck restraint systems recommended.
(c) Car must be equipped with 5-point safety harness, no more than 3 years old, with minimum of 3-inch belts.
(d) Aluminum, high-backed racing seat mandatory.
(e) Window nets are required and arm restraints and head & neck restraints are HIGHLY recommended.

(f) RACEceivers are required at all SMLRS points races.

19. NO two-way radios or any other means of driver communication permitted. One-way communication from officials only is allowed. There is to be NO signaling to drivers from crew members, fans etc. period. Driver will automatically be disqualified from any event if caught signaling.

20. NO mirrors allowed.

21. DRIVER QUALIFICATIONS
(a) All drivers must be minimum of fourteen (14) years of age. All drivers under 16 years of age MUST have a signed waiver by parent or guardian.

22. GENERAL REGULATIONS
(a) The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish the 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 accepted and complied with these rules. NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATION OF OR COMPLIANCE WITH THESE RULES AND REGULATIONS. They are intended solely 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. Any interpretation or deviation of these rules is left to the discretion of SMLRS/MTML and the decision is final.

NO EXPRESSED OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM
SUCH DEVIATION OF SPECIFICATIONS.
(b) No intoxicating spirits or controlled substances are to be consumed before or during race events by anyone entering the pit area of tracks.
(c) SMLRS/MTML reserves the right to reject or allow entry of any driver or car.
(d) Abuse or confrontation of any racetrack or SMLRS/MTML official and/or use of abusive language is strictly prohibited.
FAILURE TO ABIDE BY THIS RULE MAY RESULT IN SUSPENSION, LOSS OF POINTS, WINNINGS, RECORDS, AND/OR CASH FINE.
(e) Any disputes involving qualifying times, lap scoring, finishing position is under the jurisdiction of the hosting track officials. SMLRS/MTML officials will address winnings, points, or rules interpretations. Any disputes or discussions of this nature are to be held with SMLRS/MTML officials only.
(f) THE DRIVER ASSUMES RESPONSIBILITIES FOR THE ACTIONS OF THEIR PIT CREW AND GUESTS.
(g) Drivers, owners, and/or crew shall have no claims or actions of any kind against or cause of action for damages of any kind, expenses, or otherwise against SMLRS/MTML, any track owner, promoter, or official by reason of disqualification or damage to either car, driver, or both. This regulation shall be deemed a covenant not to sue made by each driver, owner, and/or crewmember to SMLRS/MTML, any track owner, promoter, or official with respect to any alleged act or omission or agreement by any of them.
(h) SMLRS/MTML or track officials at any time for safety, mechanical, or rules compliance may inspect any car.
(i) ANY RULES OR REGULATIONS NOT COVERED IN THIS BOOKLET WILL BE DETERMINED ON A TIMELY BASIS BY SMLRS/MTML AND THE DECISION IS FINAL.
(j) Any violations for any SMLRS/MTML rules will result in loss of points and monies for the event the violation is discovered and violator cannot return until violation is corrected. Any violations for SMLRS/MTML engine rules may result in loss of all accumulated points for the season and a one-year suspension for both owner and driver of said vehicle.
(k) Effective date of these rules January 28, 2013.
MOTOR RACING IS A DANGEROUS SPORT AND MAY RESULT IN INJURY, BODILY
HARM, OR DEATH.
Rules updated January 28, 2013