OLD DOMINION SPEEDWAY
WINNING EDGE PERFORMANCE SPEEDWAY SPORTSMAN DIVISION
2005 RULES AND REGULATIONS
version SS2005.A   effective 22 JAN 2005

Print Version

The Speedway Sportsman division is designed to promote a greater interest in Stock Car Racing at less expense than the NASCAR LMSC division. All cars must be stock in every way except as modifications allowed by these rules. The word “STOCK” means as it came from the factory for the particular model and year for a car. This includes replacement parts by part number. Any reference to NASCAR LMSC rule or section within these rules refers to the 2004 NASCAR Rule Book. These rules are subject to amendment at any time when notice has been given. Notice shall be deemed effective within two (2) weeks of the rule amendment and posting of the rule change by Old Dominion Speedway(ODS). 

1. Competing Car Models

Any American made two door model sedan, 1969 through 1993, is approved for competition by ODS. No trucks or station wagons allowed.

1.1 Only cars registered as Speedway Sportsman cars will be allowed to compete in the Speedway Sportsman division.

2. General Body requirements

2.1 Car Bodies: All body panels and air dams must be stock appearing for the make, model and year of car.

2.2 Overall Car Weight: All cars must comply with NASCAR LMSC rule 20J-2.2. Minimum weight of 3,100 pounds, with a minimum rightside weight of 1400 pounds. Weight includes fuel and driver.

2.3 Added Car Weight: See ODS rules for ALL Divisions section 1.2.

2.4 Cars must weigh a minimum of 3100 pounds with a minimum right side weight of 1400 pounds at ALL times. This includes post-qualifying and post-race as the car comes off the track. No adding of fuel, water, oil or gear lube will be allowed. Wheels and tires must not be changed.

3. Detailed Car Body Requirements

3.1 Spoilers: Spoilers are not allowed.

3.2 Windows, Lights, Mirrors: All cars must comply with NASCAR LMSC section 20J-3.2 except as amended below. This rule governs Windshields, Rear Windows and Window Nets. Windshield must be lexan and must have three interior braces. Rear window can be lexan or plexiglass and is not required to have interior braces. Two exterior window straps, 1 inch wide and 1/8 inch thick must be installed over the rear window. All other glass must be removed.

3.2.1 Window Net: Window Net in compliance with NASCAR LMSC rule 20J-3.2.3A must be installed.

3.3 Dash Panel: All cars must comply with NASCAR LMSC section 20J-3.3.

3.4 Fire Walls: Must have full firewalls, front and rear of drivers compartment, of not less than 22 gauge magnetic steel. Front firewall must not be altered or moved, and must be in the stock location for the make, model and year car. Firewalls must be sealed with no holes between engine compartment and driver’s compartment.

3.5 Doors, Fenders, Grilles, Hood, Roof, Rear Deck Lid and Bumper Covers must comply with NASCAR LMSC sections 20J3.5 thru 20J3.10. Flat Hoods Only. Hood must fit tightly to the windshield with no gaps. 

3.6 Identification and Markings: See ODS rules for ALL Divisions section 2. Car number must be displayed in five inch high, white characters, in the upper right corner of the windshield. Any car that arrives for an event with an unapproved number may be required to change the number before being allowed to participate in the event.

4. General Engine Requirements

4.1 The following engines are allowed:

Chevrolet - 350 CID small block V8

Ford - 351 CID Windsor small block V8 (Clevelands are not allowed)

Dodge - 360 CID small block V8

5. Detailed Engine Requirements

5.1 Engine Location: Must be mounted in the stock location with stock mounting points. Center of crankshaft must be located on centerline of frame/tread width.

5.2 Engine Height: Engine height, crankshaft centerline, must be in the stock location.

5.3 Engine Mounts: Engine mounts must comply with NASCAR LMSC rule 20J-5.3

5.4 Engine Displacement: Engine displacement and engine stroke will be stock for the engine being used with a maximum allowable overbore of sixty thousandths (.060) of an inch.

5.5 Engine Block: The engine block must be a stock cast iron block with an OEM part number. No aftermarket, GMPerformance, or Ford SVO/SVT racing type blocks allowed. No angle cutting of block deck. The OEM part/casting number must be provided to ODS tech personnel before the car is allowed to compete.

5.5.1 Pistons: Pistons must be flat top aluminum OEM or OEM type replacement only. Piston pin location must remain stock. Piston ring locations must remain stock. No milling of skirt or top of piston is allowed.

5.5.2 Connecting Rods: Connecting Rods may be OEM stock rods. No lightning or polishing permitted. Stock rod length and journal diameter must be maintained.

Alternate connecting rods approved for use are Eagle Specialty Products:

Chevrolet - SIR5700BPLW(press fit), SIR5700BBLW(bushed),

Ford - SIR5956FP(press fit), SIR5956FB(bushed).

5.5.3 Deck Height: Minimum piston to deck clearance is zero (0). Piston may not protrude above the block deck.

5.5.4 Oil Pan: Oil pan must comply with NASCAR LMSC rules 20J-5.5.4A and 5.5.4B Oil Coolers are not permitted.

5.6 Cylinder Head: Approved cylinder head is a 2 valve, cast iron head, World Products part numbers:

 Chevrolet:         042670-2, 042670, 4257B, 4257A (fully Assembled), 4267B, 4267A (fully assembled) Minimum 70cc combustion chamber
Intake Valve size 2.02
Exhaust Valve size 1.60

Ford:    053030-2, 053030, 5303B, 5303A (fully assembled),
Minimum 58cc combustion chamber 
Intake Valve size 1.94 
Exhaust Valve size 1.60

Dodge: Part Numbers TBD.

5.6.1 Cylinder Head Modifications: No angle milling of cylinder head block surface or intake surface is permitted. Valve angle in head may not be changed. Cylinder heads may not be ported or polished in any way.

5.6.2 Valves and Valvesprings: Valvesprings and retainers must be steel. No Titanium valves, springs or retainers. No highflow, undercut valvestems allowed.

5.7 Crankshaft: crankshaft must be OEM stock cast crankshaft. No steel crankshafts allowed. Polishing or lightening of crankshaft will not be allowed. Stock stroke must be used. Harmonic balancer must be OEM magnetic steel elastomer type balancer.

5.8 Camshaft, Rocker Arms

5.8.1 Camshaft shall be hydraulic lifter type only. No roller cams/lifters. Camshaft lift must not exceed .480 inch measured at valve retainer with valve lash set to “0” lash. Valve lifters and pushrods must be magnetic steel and comply with NASCAR LMSC rule 20J-5.8.2

5.8.2 Rocker Arms must be stock type. Rocker arm ratio must be stock, 1.5 or 1.6. All 16 rocker arms must be of the same model, type and ratio.

5.9 Intake Manifold: The following intake manifolds must be used:

Chevrolet:         Edelbrock #2101

Ford:    Edelbrock #2181

Dodge: Edelbrock #2176

No angle milling of any surface on the manifold is permitted. No porting or polishing is allowed in any manner.

5.10 Carburetor: Holley 2300 two barrel carburetor list number 7448. No modifications allowed to carburetor except as specified below:

5.10.1 No drilling or changing of any diameter of airbleeds, metering plate passages, throttle shafts, etc.

5.10.2 No swapping of metering plates.

5.10.3 Choke butterfly may be removed. When choke linkage is removed, all linkage mounting holes must be filled with epoxy.

5.10.4 All vacuum ports/outlets must be removed and plugged with steel plugs or epoxy.

5.10.5 Jets and power valves may be changed. Power valve must be used, No power valve block-off plugs allowed.

5.10.6 Carburetor Dimensional Specifications

See Attached ODS 7448 Carburetor Specification Document.

5.10.7 Carburetor Spacer: Solid aluminum, .750 inches thick, with two 1.5 inch diameter holes located in the center that match the carburetor. Spacer must comply with NASCAR LMSC Rule 20J-5.10.2

5.10.8 Carburetor claim rule: See Para 18.5.

5.10.9 Any carburetor held for inspection will be impounded for the week and will be returned the following Saturday at the track upon competitor’s arrival if Carburetor is found to be legal.

5.11 Air Cleaner and Air Intake: Air cleaner must be round and may be centered on the carburetor. Cars running GM HEI distributor may run offset air cleaner(Moroso #65925) Paper style filter element only. No devices to control the flow of air within the air cleaner are allowed. Must comply with NASCAR LMSC section 20J-5.12.

6. Engine/Car Electrical System

6.1 Ignition System: Stock OEM point type distributor is permitted. Stock OEM electronic ignition system is permitted. Aftermarket electronic ignition systems, MSD or similar, are NOT allowed. Tachometer must be equipped with quick disconnect connector to allow easy removal.

6.2 Spark Plugs: Spark Plugs must comply with NASCAR LMSC rule 20J-6.2.

6.3 Alternator: Alternator must comply with NASCAR LMSC rule 20J-6.3.

6.4 The self starter must be in working order and installed in the stock location. Starter must comply with NASCAR LMSC rule 20J-6.4.

6.5 The battery must be installed in an enclosed battery box. Battery must be securely mounted and approved by track officials. Reference NASCAR LMSC rule 20J-6.5.

6.6 Electrical Switches: All electrical switches must comply with NASCAR LMSC rule 20J-6.6 An electrical cut-off switch that cuts off all power to the car must be mounted in the center of the dash that can be reached from both sides of the car and the driver.

6.7 Electrical Wiring: All wiring shall be routed in an open manner, visible, and traceable from termination point to termination point. Taping, wrapping or enclosing wires into looms is not permitted. Bundling and securing of wires is allowed using small CLEAR tie wraps only. Termination blocks are recommended for connecting or splicing wires were necessary. Terminal blocks, if used, must be in the open, visible and easily accessible. Wiring and any accessories must comply with NASCAR LMSC rule 20J-6.7.

6.8 Radios, permitting driver and crewchief communication are permitted and recommended.

7. Engine Cooling System

Engine Cooling System must comply with NASCAR LMSC section 20J-7 except as amended below:

7.1 No electric fans are allowed.

7.2 Stock OEM style water pump only.

7.3 Antifreeze is not allowed. See ODS rules for ALL Divisions section 4.

8. Engine Lubrication: Engine Lubrication System must comply with NASCAR LMSC section 20J-8 except as amended below: Remote oil filters are not permitted. Oil coolers are not permitted. Accusumps are not permitted.

9. Engine Exhaust System: Engine Exhaust System must comply with NASCAR LMSC section 20J-9 except as amended below:

9.1 Car exhaust system shall have one Magna Flow Performance Muffler (part # 12298) installed. The installed muffler will function as a Y-pipe, with the output of each header connected to the dual muffler inputs, and the single output of the muffler connected to the exhaust tailpipe. The specified muffler must remain stock as from the factory. No modifications will be permitted. Modifications to this muffler may result in the loss of all points and/or other penalties as deemed appropriate by track officials.

9.2 All exhaust pipe shall be three (3) inch outside diameter and shall be painted white. Exhaust system may not be routed inside the driver’s compartment(interior) of car.

9.3 Tailpipe must turn to face the ground. Exhaust may not exit through the door.

9.4 Cars must not exceed a 99 db decibel level, as measured by track officials. Sound levels may be monitored anytime cars are on track.

9.5 The following tubular steel exhaust headers are approved:

Chevrolet: Cyclone #85001
Ford:    T.B.D.
Dodge: T.B.D.

9.6 Exhaust leaks anywhere in the system as determined by track officials will not be allowed and must be corrected.

10. Drivetrain

10.1 Clutch: Must comply with NASCAR LMSC rule 20J-10.1 except as amended. Only Single or double disc clutches are allowed. Carbon fiber clutches are not allowed.

10.2 Flywheel: Must comply with NASCAR LMSC rule 20J-10.2.

10.3 Bellhousing: Must comply with NASCAR LMSC rule 20J-10.3. No lightening holes may be drilled or cut into the bellhousing. An inspection port measuring 4 inches wide and 3 inches in a front to rear dimension must be cut in the bottom of the bellhousing to facilitate clutch inspection. This opening must be covered with an 1/8 thick steel plate measuring 5 inches by 4 inches.

10.4 Transmission: Must comply with NASCAR LMSC rule 20J-10.4 No weight reduction of any type is permitted. Transmission must be mounted in the stock location with the stock mounting points.

10.5 Driveshaft: Must comply with NASCAR LMSC rule 20J-10.5. Driveshaft must be magnetic steel and painted white.

10.6 Rear Axle: Nine inch Ford or OEM axle assembly may be used in all makes of cars.  Racing axles are recommended. Torque sensitive carriers are NOT allowed. Center section must be a Detroit locker or spool. Cambered rear axle housings are not permitted. Axles must be solid magnetic steel axles. Rear axle must be mounted in the stock location with the stock mounting points.

10.7 Wheels:

10.7.1 Wheels must comply with NASCAR LMSC rule 20J-10.7 except as amended. Wheel width will be eight (8) inches as measured between the mounting beads. Wide five wheels are not permitted.

10.8 Tires:

10.8.1 Tire: The track assigned tire is Goodyear model/compound # D1882. This tire is categorized as a Short Track Special, G19 (slick) tread configuration.

10.8.2 Two Tire Rule : Speedway Sportsman teams will only be allowed to purchase two (2) new tires on race day. Only 2 new tires will be allowed on the car for qualifying/racing for an event.

11. Frames: Frame must remain stock. No offset, offsetting, notching or stepping of frames will be permitted. Front and rear subframe snouts must remain in the stock location. No cross bracing or X-bracing of the frame or body is allowed.

12. Suspension: Suspension must be stock except for modifications as allowed below:

12.1 Wheelbase must be a minimum of 105 inches to a maximum of 112 inches and must be stock for the make, model and year of the car. Wheelbase tolerance will be plus (+) or minus (-) one half (1/2) inch.

12.2 Whatever bushing material is used in the left side suspension must also be used in the right side suspension.

12.3 Shocks: The track has assigned a specific shock absorber to be used in this division. This shock absorber is any AFCO “12” series shock. Example: 1273 FB

These shocks may not be altered, revalved or rebuilt by the manufacturer or any other individual. Shocks and internal components are subject to inspection by track officials at any time. A shock as provided by AFCO will be used as guide in determining if a competitors shock is in compliance with this rule. Any violation of this shock rule may result in the loss of all points and/or other penalties as deemed appropriate by track officials.

12.4 Spring size may be changed. Spring location on frame must remain stock. Jacking or Wedge bolts may be installed in the stock spring location. Leaf spring cars must use stock front mounting points and can use leaf spring sliders to mount the rear spring eye.

12.5 Front lower control arms must use stock mounting points. Lower control arms must be stock length and the same length. Upper control arms may be aftermarket, but must be the same length. No offset control arms allowed. Front lower control arm bushings must be stock rubber bushings. No solid, neoprene or performance enhancing bushing material is allowed. No mono-balls or heim joints are allowed.

12.6 Rear control arms must use stock mounting locations. Must use stock rubber bushings. No solid, neoprene or performance enhancing bushing material is allowed. No mono-balls or heim joints are allowed. A third link is allowed but must be a solid bar. A panhard bar may be used. No rear sway bar is permitted.

12.7 Front sway bay must be OEM for make, model of car.

12.8 Tread width: The maximum tread width allowed is sixty-four and one half (64.5) inches on both front and rear. A tolerance of one half inch is allowed between front and rear as long as the maximum is not exceeded. Wheel spacers, if used, must be magnetic steel and the same thickness used on the right and the left sides.

12.9 The frame and body clearance must be a minimum of four (4) inches.

13. Steering Components: Steering Components must comply with NASCAR LMSC section 20J-13. Steering wheel must have quick disconnect coupling.

14. Brakes and Brake Cooling: Brakes must be stock for the make model and year car. OEM disc brakes can be used on any car. Aftermarket proportioning valves are not permitted.

15. Fuel: See ODS rules for ALL Divisions section 5.

16. Fuel System: The Fuel System must comply with NASCAR LMSC section 20J-16 except as amended below: This includes: Fuel Cell, Fuel Cell Container, Installation, Fuel Filler, Fuel Cell Vent, Fuel Pump and Fuel Lines and Fuel Fill Containers.

NO external fuel fill is allowed. If the fuel line is routed through the driver’s compartment, it must run through a magnetic steel conduit. Conduit must be secured to the floorpan and sealed where it passes through the front and rear firewalls.

17. Personnel Safety Requirements and Roll Bars

17.1 Driver Safety Equipment. See ODS rules for ALL Divisions section 6.

17.2 Roll Bars: The roll cage must comply with NASCAR LMSC rule/section 20J-17.4. In addition, a one (1) piece, one eighth (1/8) inch thick magnetic steel plate must be installed over the outside of the driver’s door bars. This plate shall cover the entire driver’s side door area and must be welded to the door bars of the roll cage. Attachment using bolts or rivets will not be allowed. Holes of any kind will not be allowed. A multiple part plate installation may be acceptable, due to roll cage construction, with prior approval of track officials. All roll bars within the driver’s reach must be covered with roll bar padding. Hi-density, flame resistant, SFI 45.1 approved impact padding is highly recommended.

17.3 Fire System: On board five (5) pound fire suppression system with two (2) nozzles, directed near the driver is highly recommended. Fire system activation handle must be within reach of the driver when seated normally in the car with harness fully tightened. Fire system bottle must be securely mounted to the chassis with a pressure gauge in plain view for inspection purposes. Safety pins used to prevent accidental discharge of the fire system at the fire bottle head and the activation handle MUST be pulled to allow the system to function any time the car is on the track. Reference NASCAR rule 6-4C. As a minimum the car must have a working fire extinguisher of at least a 2 pound capacity and rated 10- B:C and DOT approved. A charge pressure gauge on the fire extinguisher is required. Fire extinguisher mounting brackets must be metal and of the quick release type. Fire extinguisher must not be taped or tied to the bracket. Plastic brackets are not acceptable.

18. Inspections, Protests and Claims

18.1 Pre-Race Inspection: Any pre-race inspection failures or non-compliance with these rules may result in not being allowed to participate or compete in the event. Additional weight or rear of field starts may be imposed. The penalty for inspection failure is determined by the race director.

18.2 Post Race Inspection: Any post-race inspection failure may result in forfeiture of some or all prize money, contingency money and points earned for that event. Any illegal part found will be surrendered to NASCAR track officials. No equipment or part will be considered approved by reason of having passed through previous inspections. Pre-race inspections of a particular part or rule do not preclude post race inspections. The penalty for inspection failure is determined by the race director.

18.3 Protests: No protests will be accepted after ten (10) minutes past the drop of the checkered flag in the Speedway Sportsman feature race. Only drivers finishing in the top 5 positions AND are in the top 5 in the division point standings may file a protest. Only drivers finishing in the top 5 positions AND are in the top 5 in the point standings are subject to being protested. In the final two weeks of the season any competitor protests must be made to an ODS Tech official, who will determine if the protest is allowed. Track teardowns and post race inspections will be conducted as normal including the final night of competition. ODS will retain fifty (50) percent of all protest money. The protesting driver/owner will have the same part/parts inspected on their car. The cost to protest, (teardown fee), particular items is:

Cylinder Heads  $200
Connecting Rods   $400
Crankshaft   $800

18.4 Teardowns: Any driver/owner refusing a request from NASCAR track officials to teardown for post-race inspection or protest for any reason will be placed on a one (1) race suspension. The driver will be held responsible for the refusal to teardown. The driver will lose all points earned for the current event. Refusal to teardown a second time will result in the loss of all points accrued during the season and suspension for the remainder of the current season. ODS track officials reserve the right to teardown at any time.

18.5 Carburetor Claims: The carburetor is subject to a claim rule. The cost to claim a carburetor is $75. Only the driver can claim the carburetor. Claim fee must be presented to the race director within 10 minutes from the waving of the checkered flag ending the Speedway Sportsman feature race. Only drivers finishing in the top 5 positions AND are in the top 5 in the division point standings may claim a carburetor. Only drivers finishing in the top 5 positions AND are in the top 5 in the point standings are subject to being claimed. Refusal to surrender a claimed carburetor will result in a two race suspension, forfeiture of points for the current race and loss of right to claim a carburetor for a calendar year. The claiming driver must run the claimed part in the next race in which he competes. No claims allowed on the final night of competition.

18.6 Engine Claims: The engine is subject to a claim rule. The cost to claim an engine is $1500. Only the driver can claim the engine. Claim fee must be presented to the race director within 10 minutes from the waving of the checkered flag ending the Speedway Sportsman feature race. Only drivers finishing in the top 5 positions AND are in the top 5 in the division point standings may claim an engine. Only drivers finishing in the top 5 positions AND are in the top 5 in the point standings are subject to being claimed. Refusal to surrender a claimed engine will result in a two race suspension, forfeiture of points for the current race and loss of right to claim an engine for a calendar year. A driver is entitled to one (1) claim per season. Claimed engines DO NOT INCLUDE: carburetor, distributor, oil pan, oil pump, headers, water pump or intake manifold. The claimed engine must be run by the claiming driver in the next race in which he competes. No claims allowed on the final night of competition.

19. Administration

19.1 All competitors should read/review sections 1 thru 17 of the NASCAR 2005 Rule Book

19.2 All competitors should read/review ODS General Rules and ODS ALL Division Rules.

19.3 Any questions concerning these rules should be directed to a member of the ODS technical crew. 

Hayne Dominick - ODS General Manager          [email protected]

Billy McCord - ODS Race Director            [email protected]

Gilbert Grable - ODS Technical Director            [email protected]

Less Steger - ODS LMSC Tech  
 [email protected]

19.4 Old Dominion Speedway welcomes all of its competitors to an exciting new racing season. Well wishes are extended for a safe, professional and successful racing season.