2008 NASCAR Stock Car Rules

Driver Registration

W 9 Form

Rule Book 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 participation in these events, all participants are deemed to have compiled 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.

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

JMS General Rules (Click Here)

ROOKIE QUALIFICATIONS

To be considered a rookie, a driver may have only made a maximum of five starts in this division in their entire career. To qualify for Rookie of the Year, the driver must compete in at least 75% of the scheduled events. The rookie winner will be determined by how many total points they accumulate through out the season. If there is a tie the winner will be determined by most wins, seconds and so forth.  

NOTE:  ALL engines will be required to have an eighth inch (1/8) hole drilled in two external head bolts for officials to seal the engines.

Roll Cage & Safety Rules

1. Main roll cages must be 4 point design with minimum 1 3/4" O.D. tubing with a minimum thickness of .095 inch,  low carbon or mild steel recommended. An inspection hole of at least 1/8" diameter must be easily accessible. Four-post roll cage required, front down bars and rear hoop must be welded to OEM frame. Any welded or angle joint must have a 2" X 2" gusset welded to the main roll cage. On full frame cars, the roll cage must be welded to the frame at all 4 corners. Driver’s head must not protrude outside cage with helmet on. Head clearance from top of helmet to top of roll cage will be at least 3". No offset cages.
2. All door bars and uprights must be a minimum of 1 3/4 inch O.D. and .095 inch wall thickness. Minimum three door bars, both drivers and passenger sides, parallel to the ground and perpendicular to the driver. Minimum four uprights tied from frame to top door on driver side and minimum three uprights on passenger side. For 2006 it is mandatory that drivers door bars be plated. Steel doorplates, 18-gauge or .049-inch minimum thickness must be securely welded to outside of door bars on driver’s side. Plate must cover area from top door bar to rocker panel and from rear down post to five inches in front of seat. Must be visible for inspection.
3. Rear roll bars must have an "X" .race, consisting of one full horizontal and one full diagonal bar, minimum 1.25-inch O.D. and .083-inch wall thickness. Front down bars must be tied together, passenger side front down bars must be a maximum eleven (11) inches in from top of door. Must be minimum 40 inches between front and rear down bars at top of door panel. Maximum 41 inches, (48 inches for 1988 - 1996 GM bodies) from top center of windshield to front edge of rear hoop; maximum 13 inches (20 inches for 1988-1996 GM Bodies) to front edge of top halo. Top halo must be minimum 40 inches across, outside to outside. Rear hoop may be maximum 12 inches in from bottom of opera window. Minimum one cross bar in top halo. May have maximum two horizontal bars, (in addition to bar tying front frame horns together) for radiator protection: must be behind bumper, with in confines of the body, no wider that stock frame horns.
4. Minimum of three windshield bars in front of driver.
5. Drive shaft must be painted white and drive shaft loop, metal, chain, etc is mandatory.
6. Fuel cell and a tip over valve mandatory.

Safety Equipment

1. Safety belts must be 5 point approved racing harness. Must be secured to roll cage in an approved manner.
2. Aluminum high back seat only bolted to the roll cage. Seat may be no farther back than rear edge of the B pillar on Ford and older GM bodies.
3. Roll bar padding required in driver compartment (Fire retardant recommended).
4. Driver’s window net required, minimum 16" (inch) x 20" (inch) ribbon or mesh style and must be mounted so latch is a top front of the drivers side window.
5. Kill switch is mandatory and must be mounted with in easy reach of the driver and clearly marked ON and OFF.

1. Any American  OEM full body rear wheel drive passenger car, 1964 or newer, full frame or uni-body passenger cars only. No station wagons, convertibles, front wheel drives, rear- engines or rusted and loose bodied cars permitted. 
2. No wheel base shorter than 107.5. Pro AM type cars, Camaro and Nova style cars, allowed. 
3. Body parts must be OEM. This includes the floor pan, in original position and centered over wheel wells. 
4. Body/Engine must be of same make. 
5. All cars must have complete factory floor pan and complete fire walls front and rear. No glass, mirrors, plastic parts or moldings. 
6. Driver must be sealed off from track, drive line, engine and fuel cell.
7. Dash not to extend more than 24" (inches) back from center of lower windshield opening. Dash must be flat, rear can be no higher than front, except for cowl in front of driver.
8. No other interior tin or covers. ( Dog Houses)
9. Doors may be gutted; roof may be trimmed for roll cage clearance. Kick and rocker panels may be removed.
10. No cutting on floor pan, any holes must be covered from underside with metal. Rear firewall and speaker deck must be metal and be of OEM design for that body. Front firewall from factory seam up may be replaced with minimum .049-inch thickness steel. All holes in firewalls must be covered with metal. 
11. No mirrors or reflective sun visors
12. Wheel wells may be trimmed for tire clearance but must retain stock appearance. 
13. A fuel cell must be mounted in the trunk area in an approved manner. 
14. Batteries may not be mounted in the drivers compartment. Must be in marine type case securely mounted to the frame or roll cage in metal frame.
15. No weights in the drivers compartment. Weights must be painted white with the car number on them. Weights must be securely mounted to the frame or roll cage with approved weight clamps. Weights must be bolted to the frame or weight clamps with one half inch (1/2) grade 8 bolts. No titanium, magnesium or carbon fiber products. No gun-drilled, tubular, hollow bolts or studs.
16. Front bumper construction optional but must remain in the original position. May be factory or tubular and may be reinforced. No bracing to exceed past original bumper. No "cow catcher" type additions above or below either bumper. Must be covered by stock appearing nose and plastic. Subject to approval by JMS Officials
17. All bodies must be steel or aluminum and stock appearing. No fiberglass body parts allowed. EXCEPTION: After market plastic nose and tail pieces allowed but must match body style. 
18. Hood and trunk lids must have hood-pins and be easily removable by track officials. 
19. Side skirts will be allowed no lower than 1" (inch) below the frame rail.
20. Must have tow hook that is easily accessible from both front and rear of car.
21. Maximum 5" (inch) spoiler at the rear of the trunk is allowed..
22. Driver must be sealed from the track, driveline, engine and fuel cell. 
23. Numbering of cars must be at least 18" (INCHES) and 3" (inches) wide. Number must be located on both sides of the car and the roof. If the number is unreadable you will be notified to make necessary changes for the following week. For 2006 cars must have a 6" (inch) number on a mounting plate in the upper right hand corner of the windshield area. 

Suspension

1. Factory intent stock suspension.
2. All control arms and suspension components must be factory OEM length and match OEM frame.
3. Front and rear suspensions remain in stock location. Stock A-frames may be reinforced. Tubular upper A-arms OK. 
4. Rubber, nylon or steel lower A frame bushings only, no offset or bearing type.
5. No sway bars.
6. Weight jacks allowed however must be in original centerline of spring tower. No devices allowed that would enable driver adjustment to alter the wheelbase or weight jacking while car is in competition.
7. No torque arms, pull bars allowed anywhere on rear suspension. Rear suspension must retain stock non adjustable trailing arms. 
8. All rear end suspension components and mounts must be steel, unaltered OEM, in OEM location and match frame. Rubber or nylon control arm bushings only, no offset or bearing type. Welded single-hole shock mounts only. Coil springs may be moved, but 50% must be located over top of rear end housing. No independent rear suspension. Shocks may be moved, but must remain behind housing.
9. Frame rails may be no lower than 5" from ground. 
10. No under slung bars under rear frame. 
11. No rack-n-pinion steering. 
12. One steel spring per wheel only. All coil springs must be minimum 4.5 inches O.D. and non progressive.
13. Shocks do not have to be in stock location how ever must be single hole shock mounts only. Shocks cannot go through center of aftermarket upper A frames. Shocks must be steel non-adjustable and unaltered. One shock per wheel. No coil over, air, or remote reservoir shocks, or Schrader valves. No coil over eliminators.
14. After market brake, clutch and master cylinders allowed. No brake shut-off valves allowed and proportioning devices must be front to rear only. All cars must have 4 brakes in working order, one per wheel.
15. No added weight can be located inside the driver’s compartment. 
16. No traction control devices.

Wheels & Tires

1. Any steel eight inch wide rim and must be steel no more than 8" wide. Bead lock allowed on right rear tire only. Oversized 1" (inch) lug nuts are mandatory. 
2. American Racer racing tires or maximum tire size 255 70R/15. No 60's or 50's allowed. 6 1/2 inches wide on the ground for passenger car tires and must have DOT number on them. American Racer G60 (KK-704 Modified tire) will be allowed until further notice. 
3. No grooving, sipping, or softening of tires allowed.  Grinding or buffing will be allowed however method will be closely scrutinized. You may use sandpaper up to and including 24 grit to remove the glaze on the top layer of the tires. When you are completed with sanding your tires, the edges of the tread blocks must remain the same as the edge of the block next to it. You will only be able to create the look of a worn tire, and not something of a different tire face appearance.  (Example:  no wavy tread pattern or deep grinding will be allowed.) Must pass Tech Inspectors approval. Method will be closely scrutinized.

Engine

1. Engine of 370 cubic inch and larger must run 2 bbl 500 CFM Holly and must weigh no less than 3200 pounds. Engines 369 cubic inch and smaller may run any factory four barrel but no aftermarket racing type four Barrel. (Rule modified 2/21/2006)

2. Cars with an engine 369 cubic inch or smaller may weigh 3000 pounds. All cars with an engine 370 cubic inches and larger must weigh no less than 3200 pounds.

3. No Fuel injection, one carburetor only.

4. Adapter plate and/or spacer & gaskets may not exceed 1-1/2 inches.

5. Alteration may include: Choke plate may be removed. Choke housing must remain in place, Jets and power valves may be changed, No vacuum leaks between air cleaner and intake valves, Accelerator pump squirter may not extend into the area directly above the venturi.

6. Unaltered cast intake or aluminum intake that measures 3.75 inches from the top of the block to the top of the intake for GM. Ford and Chrysler must measure 4.75 from the top of the block to the top of the intake (MAXIMUM).

7. Maximum of one 1 inch spacer between the carburetor and air cleaner " sure seal ring" (for clearance purposes only)

8. Only one 14 inch by 4 inch thick round stock appearing air cleaner allowed.

9. No carb hats, air boxes or other air flow devices are allowed.

10. No roller cams or mushroom lifters

11. Stock or roller rockers are optional. 

12. Screw in or pinned rocker studs allowed.

13. Headers will be allowed. 

14. Exhaust must exit from bottom of car and towards he rear.

15. Heads must be cast iron.  No roller camshafts allowed. No aluminum Heads allowed.

16. Drive shaft must be painted white with car number also painted on it. A drive shaft safety loop must be located no farther back than 8" from the transmission and must be round in shape.

17. Approved racing gas only, no alcohol, no mixing of fuels. No electric fuel pumps allowed. Mechanical fuel pumps mounted in stock location only.

18. Engines must remain in stock position. Recommended are solid motor mounts.

Transmissions

1. Cars must have at least one gear forward and one reverse plus a neutral position. With the motor running and car in a still position, driver must be able to engage car in gear and mover forward and then backward. 
2. Only OEM production type transmissions will be allowed. No five speed transmissions in and out boxes or quick changes devices allowed. No aftermarket transmission i.e. Berts, Brinns, Falcons and so on.
3. The flywheel / flex plate must be bolted directly to the end of the crankshaft and the pressure plate must be bolted directly to the flywheel. One flywheel only and all drive line components with in the bell housing must rotate while the car is in gear. 
4. Manual transmissions must have a blow proof bell housing.
5. Automatic must have an approved have scatter shield or blanket. Scatter shield may be constructed of .25 inch steel , 270 degrees around flex plate/flywheel.

Radiators

1. No auxiliary radiators or cooling squirters are allowed. Aluminum radiators will be allowed.

Protest Procedures

The following Protest Procedures are only in affect for regular points races at Junction Motor Speedway. These rules will not apply for any specials held at Junction Motor Speedway unless otherwise stated.

In order for a driver to protest a car they feel is not conforming to the rules in the class which they are competing, the following procedures must be followed:

      The driver must have qualified and competed in the A feature of that nights races.

1. Only a driver may protest another car.

2. The protesting diver must contact a JMS Official with in five (5) minuets after the A feature has completed.

3. The protesting driver must have three hundred ($300.00) dollars in cash on him/her and give it to the JMS Official at the time of making the protest

4. The JMS Officials will determine where the protest is to take place.

5. Only the JMS Officials, the protesting driver and one pit crew member and he protested driver and one pit crew member will be involved in the procedure. NO INTERVENTION BE ALLOWED BY ANY OTHER INDIVIDUAL. THERE WILL BE A FIVE FOOT BARRIER AROUND THE PROTEST AREA. ANYONE AND THIS MEANS FANS CREW MEMBERS OTHER DRIVERS, ANYONE OTHER THAN THE DESIGNATED PEOPLE COME CLOSER THAN THE FIVE FOOT BARRIER OR IN ANY WAY IMPEDES THE PROTEST PROCEDURE IN ANY WAY VERBAL OR OTHERWISE, THE CAR BEING PROTESTED WILL LOSE ALL POINTS AND MONEY FOR THAT NIGHT.

6. JMS OFFICIALS will have at their disposal al necessary equipment to test or check any alleged discrepancies in the rules. Junction Motor Speedway will not advocate but may chose to tear a piece of equipment down if it is deemed necessary. Cost, implementation, and infraction of penalties will be issued on a case by case basis if equipment is torn down.

7. If the protestor is found valid in their complaint that driver will have their three hundred ($300.00) dollars returned.

8. If the car being protested is found to be illegal, the driver will lose all points and money earned that night.

9. If a car is found guilty on another rules violation from that point on during the season, that car will lose all points for the season to that date of the second infraction. The car will also lose all money for that night of racing and lose all qualifications for the season to the point of the second infraction qualifying the driver for year end points money.

10. If the protestor's claims are found invalid Junction Motor Speedway will keep the $300.00 and that money will go into the point fund for that class.