Showtime Speedway 2020 Super Late Model
Must attend banquet to receive post season awards.
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: 2800 lbs (see “Additional Rules” section for additional weight breaks or penalties) with a maximum of 58% on the left side always (without refueling).
Cars utilizing working locked rear end (i.e. a spool or similar) may deduct 50LBS off their total weight and 58.5% left side.
Speedway Officials utilize a “1-pound per lap” burn-off..after the first 50 laps 58.0% Maximum left side weight at all times (without refueling). No burn off for your frist 50 laps
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
Basic Engine Guidelines
Use of any engine under 347 Cubic Inches will require a 50lb penalty.
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.
Engines may not be offset more than one inch (1”) from centerline of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate Engines must be at least 11 inches.
Standard steel blocks only. No Carbon Compacted blocks of any type.
No Ford D3, SC, or other High Port heads. The following are the ONLY approved Ford heads: A, B, C, C3, and C35. These heads must remain unaltered other than porting and polishing. No altering will be allowed to change runner floor or roof height to raise port or ports, these heads will be considered high ports and are not permitted. Runner floor and runner roof heights must remain as manufactured from Ford.
No Overhead Camshafts.
A maximum 16-inch (O.D.) air element and housing must be used.
Carburetor restriction must be done with a solid plate or cone type system only and may NOT be externally adjustable in any way. No adjustments may be made to the carb/restrictor package following qualifying. Teams will race with the same package they qualify with.
Any competitor that finishes in the top 5 may be required, at their expense, to remove the intake, heads, and/or oil pan for inspection purposes.
Externally lightened blocks will receive a 25-50 lb. total weight penalty.
All oil pumps must be mounted to front of engine.
9:1 Compression Engine 362 Max Cubic Inches/Cast Iron Block
(This package may be phased out in the near future)
Cannot exceed 9.5:1 compression. Method of determining compression will be at the discretion of Officials. 8200 rpm max.
Minimum valve angle: GM-18 degrees; Ford 9 degrees with 4 degrees valve center; and Mopar 12 degrees. (+/- 2 degrees)
Steel or aluminum cylinder heads.
Steel standard production crankshaft; balancing, lightening, stroking allowed.
Any camshaft, any steel lifter, any rockers arms. Gear drives allowed.
Steel or aluminum intake. No fabricated intakes. No material may be added to production intake manifold to increase carb height. No welded-on spacers or air deflection devices allowed in intake. No part of carb spacer shall enter the intake.
390 CFM 4bbl Part #6895 or #80507. Carburetors must pass inspection at any time regardless of temperature. Booster bar may be removed from center of booster (max inside dia. of booster .473) and the booster may be tapered from the center seam down (booster must retain .700 length minimum) but all 4 boosters must be the same style. No other modifications are allowed on carbs.
1” Maximum spacer allowed but cannot extend into manifold.
Southern Super Parts Engine (SSPE)
Southern Super Parts Engine (May Be Claimed for $21,000 + pulling fee)
Maximum Engine displacement is 362 cubic inches.
Maximum compression ratio is 11.5:1 with +.5 tolerance.
Any flat top piston permitted with 927 wrist pin and .043 x .043x 3mm ring package only. Pistons must not extend out of the top of engine block. Maximum racer cost of $1400.00 per set.
Cast Iron engine blocks only.
Intake must remain stock. Absolutely no match porting or blasting of any kind permitted. Slotting of bolt holes, water lines and matching of sides allowed. Ford part #: Edelbrock 2928, 2929, or 2934 only. Chevy part#: Edelbrock 2814 or 2892 only.
Crankshaft must have a minimum weight of 40 pounds (with front timing pulley or sprocket). Minimum main size Chevy 2.300/ Ford 2.250. Maximum advertised racer cost of $1,400.00
Connecting rods: Minimum rod journal size 1.850”. Absolutely no piston-guided rods permitted. Maximum racer cost of $1400.00 per set. No titanium rods permitted. Minimum rod weight 560 grams.
Listed Brodix Cylinder Heads only. Heads may be surfaced to achieve proper compression ratio. Absolutely no other work of any kind will be permitted to the intake ports, exhaust ports, or combustion chambers. Ford part #: SP STS T-1 F STD 225-SSPE. Must retain minimum valve angle of 20°. Chevy Part #: SP STS T-1 STD 227-SSPE. Must retain min. valve angle of 21°. Multi-angle valve job permitted. Absolutely no blending of valve job below valve seat permitted. Chamber must retain shape 3/8” above valve seat. Minimal blending due to multi-valve jobs permitted.
Maximum valve size: Intake 2.08”, Exhaust 1.60”, Stem size 11/32”. Intake valve may be titanium or stainless steel. Exhaust must be stainless steel.
No Titanium valve springs permitted. Maximum racer cost: $425.00 per set. Titanium retainers permitted. Lock angles not specified.
Camshaft must be Competition Cam Part #: 21151712. Camshaft must be installed on 104° intake centerline +/- 1°. Roller lifters, maximum racer cost of $700.00 per set. Maximum lift of .715” while using 1.6 rockers checked at valve with zero lash. Maximum 1.6 rocker arm racer cost of $1,500.00 per set. Magnetic-type push rods only. No keyway guided lifters permitted.
Maximum 5 stage dry sump oil pump permitted. Max. racer cost of $1,250.00.
Oil pan must have 1” inspection hole. Absolutely no sectional pans permitted. Open box pans only (NO windage tray / scrapers etc.). Max. racer cost of $550.00.
Ignition System may only be FAST Cams Ignition part # 6000-6701. Mount on right side of car dials point out the passenger side. The mag positive & negative shall be a maximum length of 62 inches. Must be remain uncut or spliced and on top of dash in clear view. Mandatory 8000 RPM Rev Limiter must be installed and fully functional. Absolutely no crank trigger pickups permitted.
Carburetor must be an unaltered 750 CFM 4779, 80528 Holley permitted. Carburetor must pass inspection at any time regardless of temperature. Maximum 1” carburetor spacer permitted on Ford motor only. Maximum ½” carburetor spacer permitted on Chevrolet motor only. No Internally or externally lightened blocks.
S.E.A.L. approved McGunegill, Hamner. Ford 374D and Florida SPEC “Sealed Engines” may also be used. Any tampering of seals or established construction of these engines is grounds for immediate disqualification. Additional tech rules will apply. The maximum RPM is the series mandated 7600 for these engines. Rev limiting device must always be operational with RPM Dials securely covered. All Sealed engines must use the gauge legal, 750 carb as described in the SSPE section. NO Internally lightened blocks.
The “ACE” Engine as commonly used in the ARCA Midwest Tour may also be used with a 750 carb as described in SSPE engine section. Track officials may add or subtract weight to ensure fair competition. 7800 rpm max.
Legal S.E.A.L. crate engines may also be used, see economy rules section. 50lb Weight break.
Steel head engines may be allowed on a case by case basis with 750 carb.
Engine displacement; 362 c.i.d. cast iron block with steel heads.
Compression Ratio: 9:1 (Maximum).
Engine Option: Sealed or Spec. Super Late Model Engines.
Florida Spec. Super Late Model.
McGunegill Sealed Super Late Model.
Hamner Sealed Super Late Model.
Engine Option: Limited Late Model Spec. Engines – 2,650
Florida Limited Late Model Spec Engines
Florida Limited Late Model 2-barrel carburetor
Must have stock front clip – true LLM – FAB Chassis
add 50 pounds.
Engine Option: Crate Late Model Engines
General Motors – #88958604
Ford Motor Co. – #M-6007-D347
McGunegill Ford – ASA425LM
M O P A R – P5007958
No carburetor spacer allowed on Fords
Fords must have 1.5 rocker arms
Holley 4-barrel Carburetor – 750 cfm or Holley 4412/500 cfm 2-barrel carburetor.
Governor restrictor not required.
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 will be located up to four inches (4”) setback from the center line of the upper ball joints.
Crate engines may use four inch (4”0 setback.
Engines may not be off-set more than one inch (1”) from center line of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate engines must have eleven inches (11”) of ground clearance.
No overhead camshafts allowed.
Carburetors shall not exceed 750 cfm on any engine specifications – 2 inch (2”) spacer (maximum) is allowed.
A maximum sixteen inch (16”) O.D. air element and housing must be used.
Crate, Sealed or Spec. Engines must have proper seals in place, NO EXCEPTIONS.
• Governor / Restrictor NOT REQUIRED at Showtime
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.