Lucas Oil / LineX Championship Points fee will be $50.00 for each class you wish to collect points in.  This does not restrict you from racing in other class alloted race purse (after passing tech).

CLASS STREET STOCK

GENERAL 

This class is intended for trucks and Jeeps that are primarily street driven, have minimal modifications and are street legal. Engine, frame and body must be of same make.

Entry Fee $25 per driver (1 driver allowed)   

BODY 

1)    Stock steel body (minimal cutting allowed only for tire clearance)

2)    Wheel base must be stock for frame and body

3)    Firewall cannot be cut, relocated or reshaped

4)    Must retain factory floor pan

5)    Flatbeds must meet tech approval

6)    Must retain stock glass

7)    Headlights and taillights required and must be functional

8)    Front bumper required

9)    Interior cannot be gutted

10) Race seats allowed

CHASSIS 

1)    Full uncut factory frame front to rear

2)    Minimum 4 point roll cage required for open top vehicles

3)    Suspension must be stock, lift kits allowed

4)    No removal of leaf springs

5)    Front and rear differentials, transmission and transfer case can be upgraded

6)    Trans brakes not allowed

7)    Fuel tank, battery and radiator must be in stock location

8)    4 wheel brakes, dual master cylinder required

9)    Unaltered DOT tires only

ENGINE

1)    Motor must pull 17 " of vacuum at 800 RPM's

2)    No V8's in mini trucks or mini SUV's (Unless OEM)

3)    Motor must be located in stock location

4)    No aluminum engine blocks or aluminum heads (Unless OEM)

5)    Single gas carb (no Predators, Dominators, no splits, no stretched)

6)    OEM fuel injection only

7)    Cast aluminum intake only (no tunnel rams or sheet metal intakes)

8)    Headers are allowed, mufflers are required and exhaust must extend to behind the driver’s seat

Vehicles must meet all safety requirements

CLASS SUPER STOCK

GENERAL

This class is intended for trucks and Jeeps that have been slightly modified for competition but still utilize mostly stock components. They need not be street legal, but they should appear streetable. Any engine, frame, body combination allowed.

BODY
1) Stock steel or OEM equivalent fiberglass body. Fender cutting will be permitted for tire and header clearance. Front inner fender wells may be removed. Tailgate may be removed. Full steel cab, doors and bed must be retained.
2) Body must match wheelbase.
3) Firewall may be modified (but not replaced) for engine clearance only (I.e. engine or body swaps) But engine must remain in stock OEM location.
4) Must retain factory floor pan.
5) Flatbeds must meet tech approval. Gutting of factory beds not permitted.
6) Windshield and permanent side glass required (lexan or equivalent acceptable) Rear window may be removed for roll cage clearance.
7) Headlights and taillights not required.
8) Bumpers and mirrors not required.
9) Minor interior gutting allowed. Removal of stock seat, headliner. Stock dash maynot be replaced with custom dash.
10) Race seat allowed with the addition of a SFI approved 4 point safety harness. A 5 point harness is recommended.
11) Driver must sit in stock location.

CHASSIS
1) Any unmodified OEM or OEM replacement frame. Must retain two (2) stock cross members (unused brackets and cross members may be removed at the discretion of the builder.
2) 4 point roll cage required.
3) Rear suspension must be leaf-spring unless equipped otherwise from the factory. Ladder bar suspension allowed. No 4-link or 3-link. Front suspension may be leaf-spring, coil & radius, or IFS. Other front suspension styles permitted if OEM for that vehicle. Coilover shocks permitted only as a helper.
4) Leaf-spring vehicles must have at least one functional leaf spring at each corner. Floaters/Sliders are permitted.
5) Any stock front and rear differentials allowed.
6) Any stock transfer case allowed.
7) Fuel cell, battery,  may be relocated. (See general rules for mounting specifications)
8)  Radiator must be mounted in front of engine.
9) Transmission modifications and trans brakes allowed. (must be shielded)
10) 4 wheel brakes, dual master cylinder required.
11) Maximum 46.5” unaltered DOT tires.
12) Minimum weight with driver  3600 big block, 3300 small block.

ENGINE
1) Any factory style automotive engine. (No aluminum blocks allowed, with the exception of OEM installed aluminum engines).
2) Engine must be located in approximate stock location based on firewall location.
3) Conventional OEM style aluminum heads allowed. Pro-Stock style heads (i.e. No Chevy spread port/profiler style heads. No Ford C-heads or Thor heads) not permitted with the following exceptions: (A) Ford Motorsports A-460 heads and Trick-Flow A-460 heads are allowed. (B) Any aftermarket conventional OEM style small block aluminum head allowed (Small Block canted valve heads not permitted).
4) Any single gas carburetor allowed. No stretched or split carbs.
5) OEM fuel injection only.
6) Cast aluminum intake only. (no tunnel rams or sheet metal intakes)
7) Vacuum pumps and dry sumps allowed.
8) Open headers are allowed.
9) Nitrous, turbos, and superchargers are not permitted (factory installed OEM turbos permitted on diesels)
10) Fuel limited to Gas only. Fuel additives or outlaw fuels (i.e. Super Blue, Q-16, etc) are not permitted.
11) Must be able to return under its own power

Vehicles must meet all safety requirements.

CLASS  PRO STOCK

GENERAL 

This class is intended for trucks and Jeeps that have been highly modified for competition. Although these vehicles can be gutted, they must appear stock a. Any engine, frame, body combination allowed WITHIN THE RULES POSTED BELOW.

Entry Fee $50 per driver (1 driver allowed) 

BODY 

1)    Stock steel body or OEM equivalent fiberglass body required

2)    Gutting of body is allowed. Must retain stock appearance from exterior

3)    Wheelbase must match body being used.

4)    Flatbeds must meet tech approval

5)    Windshield glass not required

6)    Headlights and taillights not required

7)    Interior can be gutted

8)    Center seat acceptable, must be located no more than 84" from the center of the front axle to the bottom of the seat back.

9)    Bumpers not required

10) 5 point harness is required when using racing seats

CHASSIS

1)    Minimum 6 point roll cage

2)    Any stock type front and rear differential allowed

3)    Any style transfer case allowed

4)    Fuel cell, radiator, and battery may be relocated

5)    Transmission modifications and trans brakes allowed (Trans must be shielded)

6)    4 wheel brakes, dual master cylinder required

ENGINE  

1)    Any automotive type engine acceptable (no aluminum blocks)

2) Engine must be located with # 1 spark plug no more than 12” behind the center of the front axle tube.

3)    Dual carburetors allowed and any style of intake. (Cast, Tunnel Ram, Sheet Metal etc.)

4)    OEM fuel injection only

5)    Vacuum pumps and dry sumps allowed

6)    Nitrous allowed

7)   Headers allowed, no mufflers required, no "puller" or straight up headers allowed.

 

 

Vehicles must meet all safety requirements.

 

DRIVETRAIN

1)    Main frame rails can be constructed from a minimum of 2x3 rectangular tubing and must be a minimum of .080 wall thickness. No round tubing or ladder style frames allowed.

2)    Minimum 6 point roll cage required

3)    Any type suspension allowed

4)    Any style OEM or aftermarket chain or gear drive transfer set ups allowed

5)    Dual independent master cylinder brake system required

6)    Four independent wheel brakes required

7)    Maximum 46.5” unaltered DOT tires.

8)    3000 lbs big block, 2700 lbs small block

9)    Maximum wheelbase 130”   

OUTLAW PRO STOCK

Entry Fee $50 per driver (1 driver allowed)
Competition chassis, race bodies and high performance race engines allowed.

BODY
1) Any style jeep or truck body allowed - must be recognizable. Fenders and roof must be retained if originally equipped. No narrowing of the body from the back of cab (Driver Compartment) forward. Narrowing or bobbing of rear quarter panels allowed for tire clearance. Rear quarter panels must extend a minimum of 12" behind the cab if not narrowed, if narrowed must extend to the end of the frame.
2) Body must extend to and cover all front engine components
3) A firewall and floorpan must be present protecting driver from engine and driveline components. Minimum of 16 ga. Steel or .060 (.120 recommended) aluminum required. The firewall will extend from door to door and from the floor pan to the base of the windshield. The floor pan will extend from door to door and front of the cab or tub to to rear of the cab or tub. (NOTE the floor pan and firewall shall be securely attached to each other and to the frame work of the chassis).
4) Center seat acceptable, must be located no more than 84" from the center of the front axle to the bottom of the seat back.
5) Windshield not required.
DRIVETRAIN
1) The main frame of the chassis must be constructed of minimum 2 X 3 steel or OEM frame from front to rear. Round tube can be used for additional bracing.
2) Minimum 8 point roll cage required
3) Any type suspension allowed
4) Any style OEM or aftermarket chain or gear drive transfer set ups allowed
5) Dual independent master cylinder brake system required
6) Four independent wheel brakes required
7) Maximum 46.5” DOT tires with alterations (Cuts) allowed
8) Minimum weight with driver and power adders 2800 big block, 2500 small block.
9) Maximum wheelbase 130”
ENGINE
1) Any automotive type engine acceptable
2) Engine must be located with # 1 spark plug no more than 12” behind the center of the front axle tube
3) Big block aluminum engine blocks are not permitted. Small block aluminum blocks are allowed.
4) Any type of cylinder head and intake manifold allowed
5) Dual carbs allowed gas or alcohol (split Dominators allowed)
6) Vacuum pumps and dry sump allowed
7) Nitrous allowed
Vehicles must meet all safety requirements.
 

CLASS PRO MOD DOT 

Entry Fee $50 per driver (1 driver allowed)

GENERAL 

This class is intended for highly modified 4 wheel drive vehicles allowing tube chassis, any engine location and aluminum engine blocks. These vehicles need not resemble any factory produced vehicle.

1)    A body is required. It can be constructed from metal, fiberglass or plastic and can be any design.

2)    A firewall and floor pan must be present protecting driver from engine and drive line components.

DRIVETRAIN

1)    Chassis material, design and workmanship must meet safety requirements and tech approval

2)    Rear engine vehicles roll cage must provide adequate protection to driver legs

3)    Any type suspension allowed

4)    DOT tires only. Vera Trac and similar tires are acceptable on front

5)    Dual independent master cylinder brake system required

6)    Four independent wheel brakes required

7)    Maximum wheelbase 150"

ENGINE

1)    Any automotive type engine acceptable (aluminum blocks allowed)

2)    Multi Carbs with Gas or Alcohol injection allowed. No nitro methane or similar fuel accelerators. Nitrous allowed (no blowers or turbos)

3)    Any safely constructed competition exhaust allowed

Vehicle must meet all safety requirements.  

CLASS PRO MOD CUTS and PADDLES 

Entry Fee $75 per driver (1 driver allowed)

GENERAL 

This class is intended for highly modified 4 wheel drive vehicles allowing tube chassis, any engine location and aluminum engine blocks. These vehicles need not resemble any factory produced vehicle.

BODY 

1)    A body is required. It can be constructed from metal, fiberglass or plastic and can be any design

2)    A firewall and floorpan must be present protecting driver from engine and driveline components

DRIVETRAIN

1)    Chassis material, design and workmanship must meet safety requirements and tech approval

2)    Rear engine vehicles roll cage must provide adequate protection to driver legs

3)    Any type suspension allowed

4)    Vera Trac and similar tires are acceptable on front

5)    Dual independent master cylinder brake system required

6)    Four independent wheel brakes required

7)    Maximum wheelbase 150"

** 8)Minimum weight with driver and power adders 2450 big block, 2150 small block.

ENGINE

1)    Any automotive type engine acceptable (aluminum blocks allowed)

2)    Multiple carbs, Injection and Nitrous allowed (no blowers or turbos)

3)    Gas or Alcohol only. No nitro methane or similar fuel accelerators

4)    Any safely constructed competition exhaust allowed

 

Vehicle must meet all safety requirements.  

CLASS OPEN CUTS 

Entry Fee $75.

GENERAL

This class is intended for highly modified 4 wheel drive vehicles allowing tube chassis, any engine location, aluminum engine blocks and super chargers. These vehicles need not resemble any factory produced vehicle.

BODY 

1)    A body is required. It can be constructed from metal, fiberglass or plastic and can be any design

2)    A firewall and floorpan must be present protecting driver from engine and driveline components.

DRIVETRAIN

1)    Chassis material, design and workmanship must meet safety requirements and tech approval

2)    Rear engine vehicles roll cage must provide adequate protection to driver legs

3)    Any type suspension allowed

4)    Maximum 46.5" DOT tires with alterations (Cuts) allowed

5)    Vera Trac and similar tires are acceptable on front

6)    Minimum weight with driver and power adders 2450 big block, 2150 small block. Minimum weight with driver and no power adders 2150 big block, 1850 small block. 

7)    Dual independent master cylinder brake system required

8)    Four independent wheel brakes required

9)    Maximum wheelbase 150"

ENGINE 

1)    Any automotive type engine acceptable (aluminum blocks allowed)

2)    Blowers, Turbo Chargers, Injection, Multiple carbs, and Nitrous allowed

3)    Gas or Alcohol only, no nitro methane or similar fuel accelerators

4)    Any safely constructed competition exhaust allowed

5)    Blower restraints and belt shield required. Blower and hat blanket and fuel line shield highly recommended

 

Vehicle must meet all safety requirements.

 

CLASS OPEN PADDLES

GENERAL

This class is intended for highly modified 4 wheel drive vehicles allowing tube chassis, any engine location, aluminum engine blocks and super chargers. These vehicles need not resemble any factory produced vehicle.

BODY 

1)    A body is required. It can be constructed from metal, fiberglass or plastic and can be any design

2)    A firewall and floor pan must be present protecting driver from engine and drive line components.

DRIVETRAIN

1)    Chassis material, design and workmanship must meet safety requirements and tech approval

2)    Rear engine vehicles roll cage must provide adequate protection to driver legs

3)    Any type suspension allowed

4)    Paddle tires or maximum 46.5" DOT tires with alterations (Cuts) allowed

5)    Minimum weight with driver and power adders 2450 big block, 2150 small block. Minimum weight with driver and no power adders 2150 big block, 1850 small block. 

6)    Dual independent master cylinder brake system required

7)    Four independent wheel brakes required

8)    Maximum wheelbase 150"

ENGINE 

1)    Any automotive type engine acceptable (aluminum blocks allowed)

2)    Blowers, Turbo Chargers, Injection, Multiple carbs, and Nitrous allowed

3)    Gas or Alcohol only, no nitro methane or similar fuel accelerators

4)    Any safely constructed competition exhaust allowed

5)    Blower restraints and belt shield required. Blower and hat blanket and fuel line shield highly recommended

Vehicle must meet all safety requirements.

GENERAL RULES 1)    All competitors must be at least 16 years of age with a valid driver's license to participate. 2)    No alcohol or drugs permitted. This policy will be strictly enforced and presence of alcohol or drugs will automatically disqualify the driver and vehicle from competition. 3)    No riders permitted in vehicle. 4)    All participants and crew members shall present themselves in a neat and professional manner (shirts and pants mandatory) at all times during the event. (Driving suits, overalls or matching crew uniforms (Shirts or shirts and pants) recommended. 5)    The appearance of your vehicle should be presented in a clean and professional manner. Offensive Graphics, pictures, lettering are not acceptable. 6)    In the event of disqualification of vehicle, no refunds will be allowed. 7)    It is mandatory that a licensed driver be seated in the normal driving position any time the engine is running, including pit area, staging lanes, turn around and return roads. Failure to follow this procedure will result in disqualification. 8)    No high-speed driving or "hot-rodding" will be tolerated anywhere except on the race track. NO WARNING WILL BE GIVEN. These actions are grounds for immediate disqualification. 9)    The tracks'  "Tech Official" will have final approval of a race vehicles legality and safety for any and all classes. The tech official will have the right to call for a re-tech OR disqualify any vehicle that they feel does not meet the safety requirement. (Refusal to comply with a re-tech - will be automatic disqualification). Protest Procedures 1)    Participant protests may only be filed by the driver or registered vehicle owner competing in the same event, in the same class as the vehicle being protested. 2)    Any protest must be made within 30 minutes of class competition. The protest must be made in writing and must specifically identify in detail the nature of a single violation and must be accompanied by the protest fee of $200 cash. 3)    The Tracks Tech Official - present at the event will investigate and decide the protest as promptly as possible and shall inform the parties of the protest his decision. 4)    If the protest is sustained, the protested racer will be disqualified from that class only. Adjustments in pay and standings will be made, and the protest fee will be returned to the protesting racer. 5)    If the protest is over-ruled, $150 of the protest fee will be awarded to the racer who was protested and $50 will be given to the NAMRO. 6)    The Tracks' Tech Official reserves the right to reject any protest that it determines, in its sole and absolute discretion, is frivolous or intended to harass another participant or to otherwise gain some unfair competitive advantage. SAFETY RULES For the purpose of safety rules the following classes will be referred to as "Pro classes" - Open Paddles, Open Cuts, Pro Mod Cuts, Pro Mod DOT, Pro Stock. Drivers Safety 1)    Super Stock class requires each driver to wear a helmet, long pants, and sleeved shirt and leather shoes. (No open foot wear allowed). To maintain safety and professionalism an SFI 3.2A-1 fire suit, gloves, neck collar and shoes are highly recommended. 2)    A SFI 3.2A-1 approved fire suit is mandatory in all pro classes. Including, gloves, shoes, neck collar and helmet. All Nitrous and alcohol classes require the addition of a SFI approved two layer fire suit and head sock).  3)    All race vehicles in the "Pro and Superstock" are required to have attached to the vehicle, in plain view, a fully charged, 2 1/2 lb. minimum dry chemical or CO-2 fire extinguisher with a dial gauge, approved by ICC, UL or Coast Guard, and equipped with a suitable quick-release bracket. Extinguisher must be securely mounted within driver's reach (in front of or to the side of driver). Behind the driver is not acceptable. 4)    All open cockpit vehicles in the Pro classes (Mod and Open) running alcohol and / or nitrous are recommended to have an on board fire system (Hy-lon or cold fire) with at least 1 nozzle directed towards the drivers feet and a 2nd nozzle directed at the engine away from the driver) Activation must be accessible by the driver while secured in the drivers seat with a 5 point harness. 5)    In the Stock classes, stock factory seat belt and shoulder belts allowed. It is highly recommended that vehicles equipped with a racing seat (or seats) will incorporate the use of a 4 point harness for the driver). 6)    A 5 point safety harness is required for the driver in all pro classes. Arm restraints and / or window nets highly recommended) Vehicle General Requirements  1)    Vehicle must have rigid front and rear hitching point. a.    Tow hook retaining clips required. b.    Hitching point must be easily accessible and of substantial construction. No chains, straps, cables, or frame rail holes permitted. c.    If you are using your stock or add-on bumper, the mounting brackets must be at least 1/4" thick. d.    A rear axle hitching point is acceptable on vehicles with 3 or 4-link suspension, subject to Tech approval. e.    A pintle hook (rather than a clevis) will pass as long as the top jaw locks and releases. 2)    With the exception of the "Modified" and "Open" classes which may use a separate (detached) battery pack and / or a funny car style starter. All other vehicles must have adequate battery power and starter on board to start the vehicle while the driver is securely fasten in the driver’s seat.  3)    Vehicle batteries must be securely fasten to the vehicle with proper hold downs to prevent it from coming loose in the event of an accident (No straps, bungee cords etc.) allowed. Batteries shall not be mounted in the driver’s compartment. (An approved battery box or enclosure is highly recommended) NO VEHICLE SHALL BE STARTED OR LEFT RUNNING WITHOUT A LICENSED OPERATOR IN THE DRIVERS SEAT. 4)    All fuel lines, coolant lines, belts and hoses must be in good condition. 5)    Every vehicle must have an ignition kill switch. a.    The ignition kill switch must be within driver's reach while he/she is fastened securely in harness. (A stock ignition switch is adequate for Stock and Superstock classes). b.    The kill switch must be clearly labeled "KILL SWITCH" or "ON" and "OFF" c.    Kill switch must shut power off to all electric pumps, nitrous and ignition systems. d.    Pro Class vehicles must have a master kill switch mounted at rear as close to centered as possible (accessible when vehicle is on side or upside down) This switch must disconnect all battery power and shut off engine. Switch must be clearly labeled. (A second master switch within the drivers reach is highly recommended). e.    Magneto powered vehicles will need a relay to comply (these can be supplied through many high performance parts outlets). 6)    No engine or transmission cooling devices or lines will be allowed inside the driver's compartment of the vehicle. 7)    With the exception of OEM fuel systems in the Stock classes 8)    The use of electronic, digital or programmable ignition boxes for ignition and nitrous control in the Pro-classes are allowed. Engine  1)    All supercharged vehicles are required to use aluminum blower studs, belt shield and SFI approved blower restraints. (Blower and hat blanket and fuel line shield highly recommended). 2)    All Pro Classes must use 3 return springs on throttle: 1 on pedal (or a toe loop) and 2 on carburetor or injection. 3)    Vehicles with (mechanical) aftermarket alcohol fuel injection systems must have a fuel shut off valve. The fuel shut off valve shall be securely fastened within the drivers reach while they are fastened in the driver's seat with a 5-point harness. - NOTE: A separate shut off is not required for stock OEM fuel injection systems in stock classes). 4)    SFI approved balancer is highly recommended on all modified engines. 5)    All Pro classes recommend a SFI approved steel harmonic balancer. Drive train 1)    All Pro class vehicles must have driveshaft loops. a.    Driveshaft loops must be of substantial rigid construction. All mounting bolts must be a minimum of 5/16" diameter. b.    Each driveshaft must have a minimum of 2 loops. If a vehicle has a shaft no longer than 24", 1 loop, properly centered, will suffice. c.    Driveshaft loops must be rigidly mounted to frame rails d.    Loop location is to be no less than 6" and no more than 12" on the solid end of the shaft, and 1" past slider on end with slip joint: or 3 loops must be evenly spaced so that if the slip joint breaks, shaft will not drop. e.    In addition to the above - All pro-class vehicles are required to have u-joint guards or shielding around all exposed u-joints. . Guards will be 360degree, 3" wide. Guards will be made of ¼" aluminum or 1/8" steel, secured with minimum 5/16" hardware 2)    Transmissions must be properly shielded. (NOTE: Non Planetary - gear driven units do not require shielding or blankets (I.e. SCS or Pro-fab units etc.). a.    Mechanical clutch equipped vehicles must have SFI approved bell housing with block saver plate. Must be installed with approved manufacturer's hardware. b.    All vehicle are required to have a SFI approved Flex plate or Fly wheel) c.    All automatic transmission equipped vehicles are required to have a SFI approved transmission safety blanket, SFI approved transmission shield Or SFI Approved transmission case. (It is also recommended that all pro classes install a SFI approved flex plate shield or bell housing). 3)    The running gear of each vehicle will be inspected to verify the safety of such critical parts as steering, brakes, welds, tires, and body condition. 4)    All chain driven vehicles must have a shield or guard of 1/8" steel (minimum thickness) or ¼" aluminum covering the top and ends of the unit. All Shielding must be securely mounted to the engine or frame structure to contain chain in the event of breakage. (Stock Frame can pass as end cover subject per tech approval). 5)    All weight added to race vehicles must be securely attached per tech approval. Added weight must be brought to the attention of the Tech Inspector. (NOTE: All added weight shall be painted white ) Fuel 1)    All fuel tanks must be isolated from driver's compartment by a firewall. a.    All stock classes - gas tanks must be in stock location. NOTE: Stock in cab tanks may be relocated - But must be mounted under the body of the vehicle isolated inside the frame perimeters. Pro classes - Fuel cells allowed as per class rules b.    Fuel lines must be isolated from driver's compartment by sub-floor. c.    Tanks must have adequate latching gas caps. d.    Tanks must have sufficient capacity to make full runs. e.    Engine MUST be turned OFF while refueling). f.     Fuel tanks (or Fuel cells) must be securely fastened with a minimum of 2 metal straps, (1" minimum width) secured with the proper hardware (3/8" minimum). g.    NO pressurized fuel systems allowed. All fuel systems shall be operated by mechanical or electrical means only. Nitrous 1)    Nitrous Systems must be commercially available and installed per manufacturer's recommendations. a.    A 1/4 turn ball valve within driver's reach must be used to shut off bottle. b.    If two bottles are used, both must have ball valves and must be on 1 cable to shut off flow. c.    The electrical power source for fuel pumps and nitrous switches must pass through the master kill switch. d.    The Nitrous activation switch must be loaded button (momentary switch). e.    Nitrous filter is mandatory. f.     Heating of nitrous bottles by any open flame (Torch) is NOT permitted. g.    The use of any agents other than nitrous oxide as part of, or mixed with, is prohibited. Brakes 1)    All vehicles must have working and adequate brake systems. (Dual reservoir master cylinder required. a.    Four (4) Independent wheel brakes required for all classes for the 2009 season. b.    Braking systems will be inspected and tested during tech inspection. c.    All Brake rotors will be inspected for heat cracks, Rotors found with heat cracks will not pass tech inspection. d.    Steel brake lines recommended. (Flexible steel braided brake lines allowed as long as they are securely fastened). e.    Stock flex lines to calipers are acceptable. (Steel braided flex lines recommended in all Pro classes). Tires 1)    D.O.T. tires must have raised D.O.T. stamping on the sidewall. 2)    Tires will be sized by manufactures, raised lettering on the sidewall. 3)    No recapped tires will be allowed. 4)    Tires must be mounted with NO missing lug nuts. Body & Chassis 1)    Firewall and floorboard must be of adequate construction to protect driver from engine and driveline components. (.060 steel or aluminum minimum) 2)    All stock class vehicles with a soft or removable top must be equipped with a roll bar and two (2) support bars (a 4-point cage is highly recommended). Securely fastened to the vehicle with .060 steel plates at mounting points. Roll Bar mounting plates must to be "welded to" or plates bolted through body with at least 4 ea. Of 3/8" bolts and hardware at each mounting point (4 required). Bars to be a minimum of 1 5/8" x .123 wall mild steel tubing. 3)    Manufactured or purchased "show" or "dress" bars mounted in the cab or bed are unacceptable. 4)    All roll cages will be made of a minimum of  .090 wall steel tube with a minimum diameter of 1 ½.(Exhaust tubing will not be acceptable) Bends must be continuously round with no sharp corners or edges. 5)    All pro classes will have a roll cage that will be attached to the frame at a minimum of 4 points. Open cage vehicles will be required to have a cage attached by 6 points to the frame 6)    Frames and roll cages will be substantially constructed and designed and must meet approval by the tech officials.