Showtime Speedway 2016 Late Model
If these rules do not say you can do it then don’t do it! Be sure to check the general rules. All interpretations by the track are final. You are responsible to know the track’s position on all rules. IGNORANCE IS NO EXCUSE!
A. Eligible Cars and Bodies Guidelines
1. All competing cars will be full-sized, stock American manufactured passenger car bodies. 2009 A-B-C Body Rules apply unless otherwise specified herein. (Refer to A-B-C Rulebook and guidelines for details.) The A-B-C Body Guidelines will be posted at the websites of the series and approved body manufacturers. Also, no panels allowed extending top edge of doors. Any other body configuration must be approved by track officials prior to qualifying. Weight may be added at the official’s discretion.
4” Frame height minimum.
2. Rub rail are discouraged and may only be used if they are polycarbonate.
3. The air box between the nose and radiator may have no pieces wider than the radiator. No types of under-body air deflectors are allowed. All air for blowers or coolers in the engine compartment must be pulled from the nose or the radiator air box.
4. Minimum Base Weight: 2750 lbs (see “Additional Rules” section for additional weight breaks or penalties)
5. 58.0% Maximum left side weight at all times (without refueling). For post-race total weight requirements, teams may refuel, or officials may utilize “1 lb. per lap” burn-off.
6. 66 inch maximum tread width for all cars.
7. All cars must go through technical inspection prior to car taking to the track for practice. Cars will be weighed with driver, and may be done prior to or after qualifying and prior to or after the feature. Reading of designated scales will be official.
B. Engines – Basic Engine Guidelines
1. Engines with rear mounted distributors will be located so the forward most spark plug is no more than two inches (2″) from the center line of the upper ball joints. Engines with front mounted distributors: up to four inches (4″) setback from centerline of upper ball joints. Crate Engines may use four inch (4″) setback.
2. Engines may not be offset more than one inch (1″) from centerline of car.
3. Front center of crankshaft must have at least ten inches (10″) of ground clearance. Crate Engines must be at least 11 inches.
4. No overhead camshafts.
5. A maximum 16 inch (O.D.) air element and housing must be used.
6. Carburetors shall not exceed 750 cfm on any engine configuration, 2” max spacer allowed
7. Crate, Sealed or Spec Engines must have proper seals in place, NO EXCEPTIONS.
C. Engine Option 1 – 9:1 Compression Engine 362 Max Cubic Inches/Cast Iron Block 390 Carb
D. Engine Option 2 – Steel Head Engine 362 Max Cubic Inches/Cast Iron Block
E. Engine Option 3 – Sealed or Spec Super Late Model Engines
1. Florida Spec Super Late Model
2. McGunegill Sealed Super Late Model
3. Hamner Sealed Super Late Model
a. Engine Options 1, 2, & 3
• Must weigh 2,750 lbs —– 58% Left
• Holley 750 cfm with Governor/ Restrictor 1.050 or Holley 4412/500 cfm 2 barrel
• Governor / Restrictor NOT REQUIRED at Auburndale Speedway or Citrus County Speedway
F. Engine Option 4 – Limited Late Model Engines – 2,650 lbs
1. Florida Limited Late Model Spec Engines
2. Florida Limited Late Model 2 bbl Engines
3. Must be stock front clip – true LLM – FAB Chassis add 50 lbs
G. Engine Option 5 – Crate Late Model Engines
1. GM #88958604, Ford #M-6007-D347, McGunegill Ford #ASA425LM, Dodge #P5007958
a. NO CARB Spacer allowed on Fords
b. FORDs must have 1.5 rocker arms
H. Fuel System
1. Fuel samples may be taken at any time and tested. Alcohol, nitro-methane, nitrous oxide, other oxygenating agents, or other additives are not permitted. No mixing of race fuel with regular pump gas. Use of such substances or additives will result in immediate disqualification and loss of points.
2. No electric fuel pumps will be permitted. No forced induction of any kind is permitted.
3. No icing or cooling of fuel system.
4. A fuel cell will be mandatory with a 22-gallon (U.S.) maximum. Fuel cell must have a minimum of eight inches (8″) ground clearance. Fuel cell must be equipped with at least two (2) protective straps completely around the cell. Fuel cell must be mounted securely behind the rear axle of the car. All cars must have safety bar at the rear of the fuel cell. At a minimum, all fuel cell configurations must include a rubber type cell in a metal container.
1. Battery powered ignition. Vehicle MUST start under own power.
2. Maximum 16 Volt Battery. Car must be capable of being started with a 12-volt battery. No Magnetos.
3. All wiring must be sealed. No unplugged wiring. All ignition boxes must be mounted on the passenger side, in plain view, and out of reach of the driver…and…all wires to the distributor must be run separately and not part of a bigger loom or wiring harness.
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1. No cockpit, driver adjustments, other than brake bias.
2. Coil Springs and Spindles must be Steel.
3. No traction control devices, electronic or otherwise, will be permitted. Use of traction control will be cause form immediate disqualification, loss of points, and/or suspension from future racing activities.
4. One shock per wheel.
K. Wheels and Tires
1. Right Side Tires: Hoosier F45, Left Side Tires: Hoosier F45
2. Steel 10″ wheels only.
3. Bleeders are ALLOWED.
4. Cars must start the feature on the same tires on which they qualified. Cars running the last chance race may change tires prior to that race, but must return to the qualifying tire for the feature. Cars which run the last chance race on tires on which they qualified will be allowed to change tires prior to the feature.
5. Use of tire softening, hardening, or altering agents will NOT be permitted. Use of such substances will result in immediate disqualification, loss of points and money.
6. Durometer rule may be enforced at track official’s discretion.
A MINIMUM DUROMETER READING OF 50 COLD. A MINIMUM DUROMETER READING OF 44 HOT AT ANY TIME UNDER RACING/QUALIFING CONDITIONS.
L. Transmission, Driveshaft, Rear End
1. Full standard type transmission only will be permitted.
2. Rankin direct drive, Rankin type direct drive, direct drive, cluster disconnect add 50 lbs to base weight
3. NO quick change or automatic transmissions
4. A minimum of one reverse and two forward gears will be required.
5. Multi-disc clutches will be permitted. Conventional clutch mounted to fly wheel only will be permitted.
6. No carbon fiber or nonstandard material clutches. The minimum clutch diameter is 5.5″.
7. Driveshaft must be equipped with a minimum of two (2) safety straps and must be painted white. Aluminum or Steel drive shafts only.
1. Vehicle must be equipped with four-wheel hydraulic disc brakes.
2. No carbon fiber rotors. Only steel rotors allowed (no titanium).
3. Brake fluid circulators permitted. Liquid or gas cooling not permitted.
1. Radio communication to the drivers is mandatory, with a minimum of one (1) spotter for each team. Spotter must have the capability to monitor series race control with a scanner.
2. Approved seat belts and double shoulder harness will be required, no older than three (3) years. A crotch strap will be required. Sternum strap recommended.
3. Head and neck restraint system is mandatory. Restraint must meet or exceed SFI specification 38.1 for Head and Neck Restraint Systems. Absolutely no neck collars or donuts are permitted. Drivers will not be allowed on the racetrack at any time without proper neck restraints in place.
4. Helmet must be 2000 Snell standard or better and have sticker visible for inspection. Full-face helmets required.
5. Clean full driving suit for fire protection will be mandatory, along with approved racing gloves
6. Side plate for driver’s door will be mandatory. Must be 12 inches (12″) high post-to-post, 1/16″ minimum thickness steel or and must be fastened with a minimum of six (6) half-inch bolts or securely welded to satisfaction of series officials.
7. Driver’s window must be equipped with safety net with quick release-latch. String window nets will not be permitted. The minimum net size must be 22″ wide and 16″ high. When latched, the window net must fit and pull tight.
8. Resilient padding designed for roll bar use must be installed on any roll cage member which can be reached by any extremity of the driver while driver is normally seated with restraints fastened. Steering wheel must also be padded.
9. All lead weights must be painted white, with the car number painted on each individual piece. All lead weights must be securely fastened. No lead weights will be permitted in driver’s compartment. Any lost weight will result in a $10 per pound fine.
10. All competing teams must possess a minimum 10 lb. Aluminum working fire extinguisher while in attendance in pits, and this item must be presented at inspection. Car number must be painted on fire extinguisher
11. A main electrical cut-off switch needs to be clearly marked and easily accessible to safety crews.
12. Numbers must be a minimum of 21″ in height, with body of each character a minimum of 3″ in width and must be professionally placed on each door. A number will be required on top, readable from the infield.
13. A car number at least six inches (6″) in height must be placed in the upper right hand corner of the windshield.
14. Roll cage must be constructed of 1 ¾” OD round steel tubing with a minimum wall thickness of .090″. Three inches (3″) maximum gussets measured diagonally must be welded in main roll cage area where a 90 degree angle exists or where the roll cage meets the main frame rails. The main frame rails and/or bolt-on clips must be steel from radiator area to behind the fuel cell.
15. No part of any cooling system may be located in driver’s compartment
16. Batteries must be securely fastened and mounted outside of driver’s compartment.