BOONE COUNTY RACEWAY

2010 LIMITED LATE MODEL RULES   1-12-2010

                                                ***All cars must be Tech Inspected the first night the car is at our track.***

WHEEL BASE

1.                Minimum wheel base average is 103".   
2.             Rear suspension configuration is optional, but no devices allowed of any kind that are designed to change the wheel base of the car                
                while in competition will be permitted.  Control arms with rubber bushings are not permitted on the rear of the car.
3.             No Traction control devices allowed.
4.             Only one shock
and steel spring per wheel.  One dummy shock or one limiting device on left rear only.  No remote reservior shocks 
               will be allowed on any corner of the suspension
.  No Shrader valves, or gas relief/refill ports.
ENGINE

1.             All engine casting number stamped on the engine will be left on the block at the bell  housing area.
2.             No welding, grinding or epoxying of block numbers will be allowed.  Block numbers will  be stamped by the tech inspectors if needed.
3.             Spec Heads
: The spec head for GM is a GM bowtie part number 10134392, with casting  number 
              
14011034.  For Ford check track for numbers.  This head will be allowed, no modifications except
             
surfacing and 3 angle valve job.  Maximum valve size 2.055 intake 1.60 exhaust, all engines.
4.             No aluminum blocks, heads or dry sump systems will be allowed.  Engine must be self starting.  Aluminum water pumps allowed.
5.             Engines must have stock crankshaft stroke for engine block used.  (3.480 max on Chevy and 3.50 max on Fords).
6.             No intermarriage of engines will be allowed.  After-market harmonic balancers are allowed.  No mushroom or roller lifters allowed. 
                
Maximum lifter diameter GM engine is .874.  Lifter must be 100% steel.
7.             Stock or roller rocker arms are optional.  No stud girdles.  Screw-in or pinned rocker studs allowed.  No roller cams. 
               No shaft mounted rocker arms on GM or Ford Models.
8.             Battery operated ignitions only.  Electronic ignition systems are permitted, but must be mounted in stock location and maintain 
                the same firing order as factory produced engine.  No crank triggered ignitions, MSD 6AL or 6T ignition box only. 
               No other after-market distributors, MSD or ignition boxes allowed.  May use  ONE 12 volt 6 Cell standard
production 
               design battery, with only one battery used for both
starting and  ignition systems.  Alternators optional but must be
                12 Volt standard design.  Boone County Raceway reserves the right to exchange ignition boxes or RPM chips at any times.
9.             No titanium engine parts permitted at all, except titanium valve spring  retainers.
10.           No engine may have more than 360 cubic inch placement.  Mopar may run 365 cubic inch.
               No engine may have more than 11.0 to 1 compression ratio.  No Tolerance. 
Must run a flat top piston with no modifications 
               except:
minor valve relief, domes are allowed if ground to flat top and ring  combination, size, and position
                must remain stock.  Chrysler may not run W/2 heads and Fords may not run Cleveland heads.
11.           GM 602 and 604 Crate Motors allowed.  Crate 604 Chip 6400 weight 2300 lbs. and Crate 602 Chip 6400 weight 2200 lbs.  
                Boone County Raceway reserves the right to adjust the weight rule.

ENGINE LOCATION
      
1.             All competing models are allowed a maximum engine set back of 8", to be measured from center of the forward most 
                spark plug hole to the center of the upper ball joint.
2.             All engines must be mounted so that the crankshaft is within 2 1/2" of the center line of the fixed ball joints.

INTAKE MANIFOLDS

1.             Boone County Raceway reserves the right to exchange intake manifolds at any time.           
                SPEC INTAKE-The following manifolds, stock and untouched, will be mandatory on all engines:
                GM-Edelbrock Torker II #5001 or #2101
                FORD WINDSOR-Edelbrock Torker II #5081 or #2181
               FORD CLEVELAND-Edelbrock Torker II #2665-4 or #2750-2
                MOPAR-Edelbrock Torker II #5076 or #2176  

CARBURETOR

  1. The only acceptable carburetor will be the two barrel Holley #4412, 500 C.F.M. model, 
    with only the following alterations:

  1.        *Choke plate may be removed.  Choke housing must remain in place.   
  2.    *Jets and power valves may be changed.  

                *No vacuum leaks between air cleaner and intake valves.

                *Adapter and spacer may not exceed 1 1/2".

*Only one maximum 14" diameter by 4" thick round stock appearing (top & bottom) air cleaner      may be  used.

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

*No spacer will be allowed between the bottom of the air cleaner and carburetor.   NO  TOLERANCE.

*Accelerator pump squirter may not extend into the area directly above the venturi.  This  will be used for teching purposes
and this will be done periodically.

                *The Holley # 4412 may have the air bleed hole enlarged in the throttle plate only.
ROLL CAGES

1.             All cars are required to have a screen in front of the driver, with a frame and at least 3 vertical bars in the frame besides the side bar.
2.             All cars are required to use a roll cage with at least 3 horizontal bars across the drivers door.
3.             All cars will be required to have a vent window bar and a bar in the center of the roll cage over the drivers head,
                or a roof bar from left front windshield bar to the right main roll cage hoop.
4.             All cars will be required to have a bar for the purpose of protecting the drivers feet.
5.             The battery must be mounted between the frame rails and ahead of the fuel cell.
6.             No mirrors allowed.
7.             All cars must have window net in drivers door.
8.             All belts must be fastened to the frame of the car.

RADIATOR

1.             Only one radiator for the purpose of cooling water.
2.             A 360 degree metal fan shroud will be mandatory.
3.             All radiator screens must be behind the bumper line.

WHEELS AND BRAKES


1.             Steel or aluminum wheels will be permitted.
2.                Maximum wheel width is 14", bead-lock wheel is allowed 3/4" maximum.
3.             Bead Locks allowed on all four corners.
4.             Rotors or brake drums must be made out of steel.  No ceramic or any other coating  permitted on surface of  rotors or brake drums.
5.             No ceramic or carbon fiber parts allowed anywhere on the car.
6.             One shock spring per wheel except dummy shock on left rear for purpose of limiting travel.

WEIGHT
1.             All competing models must weigh minimum 2,400 lbs. after the race with driver. 

TIRES                   Hoosier D55 WRS-2 11.0 x 15 x 88, 90, 92.
2.             No alterations, as in, grooving, siping, softening or conditioning.  May use 24 grit sandpaper only to break
                glaze.  Tires must durometer test stock, unaltered at any time.

FUEL AND FUEL CELLS

1.             Gasoline only, Racing fuel allowed.  No E85.  No performance enhancing additives or scented additives. 
               Fuel must pass both dialectric meter and chemical tests.  Fuel sample may be taken from any car at any time. 
                Penalty for illegal fuel is disqualification from event and $250 fine-first offense.

2.                Commercially manufactured fuel cells are mandatory.  Maximum fuel cell capacity is 32 gallons.
3.             Fuel cell cannot extend below bottom of rear end.
4.             All fuel cells must be encased in a metal container.
5.             All fuel cells must be secured to the frame of the car and must be mounted in frame work.
6.             All cars must have a fuel cell guard that is mounted separate of the fuel cell and mounted to the frame of the car.

7.             Fuel cell guard must be made of at least 1 1/2" tubing and must extend to the bottom of  the fuel cell.
8.             Racing fuel cell and a tip over valve MANDATORY.
9.                Mechanical fuel pumps ONLY, mounted in stock location.  This means no belt driven or electric fuel pumps.

CHASSIS AND EXHAUST

1.             All headers must have collectors on them and must exit under the car and point toward the rear of the car. 
                Round tube headers only.  Must remain dual exhaust.  No crossovers, 180 degree, zoomies, or Tri Y headers
2.             All front suspensions must be of A-frame type.
 CLUTCH, FLYWHEEL AND BELL HOUSING        

1.             High speed multiple disc clutches are permitted.
2.             All cars must be able to get in and out of gear with the engine running and standing still.
3.             All cars must be equipped with a flywheel and an operable starter.
4.                Aluminum bell housing will be allowed, but if the clutch is mounted inside, then the bell housing must have 
               scattershield similar to what the modifieds run (270 degree, 4" x 1/8" shield around flex plate or flywheel).

TRANSMISSION/REAR ENDS

1.             OEM production 3 or 4 speed transmissions that are catalogued through dealer channels will be permitted.  
                Brinn, Bert, Falcon circle track transmissions are permitted.
2.             All transmissions must have at least 2 speeds forward and reverse in working order at all times.
3.             No 5 speed or overdrive transmissions allowed.
4.             All transmissions must bolt directly to rear of the bellhousing which bolts directly to rear of engine block.
5.             Steel drive shafts only, universal joints that are similar in design to standard production
will be allowed.
6.             All drive shafts must be painted white.
7.             All cars must have a 360 degree hoop toward the front of the drive shaft, made of at least  1/4" x 2" steel  strap.
8.             It is recommended to have a drive shaft hoop built our of 4" or 5" by 6" long round  tubing.
9.             No open tube or cambered rear ends allowed.
10.           The rear tread width can be no wider than the front tread width (left and right side).

BODIES

1.             No rear body panels.
2.                Minimum panel width 36".  No holes or louvers allowed.  Car number is required.
3.             Bodies must be mounted in a similar manner to stock appearing.
4.             Stock appearing production manufactured nose panels only.  No wedge noses will be allowed. 
                Stock appearing nose panels will have a maximum width of 72".  The length of  the nose pieces for all models will  be 
                45" from the center of the hub to the front of the nose.  All cars must have a hook or chain on front for towing purposes.
5.            
Refer to the enclosed picture for all body measurements.
6.             All cars will have a maximum rear spoiler height of 8".  This will be measured from the deck and will measure all spoiler material
7.            All cars will  have a maximum rear spoiler width of 72”.

HINT:  Make sure your spoiler does not extend past your rear bumper.  Cars will be allowed to use 3 spoiler braces that are 18"
at the base and no higher than 3" at the front being no higher that the spoiler at the back or extending past spoiler.  
Braces are allowed  a 1/2" break in them.

8.             Roofs may be made of steel or aluminum but must meet the body specs and approved by official.

9.             All roof panels must have front and rear roof posts. Rear roof posts will be a minimum of  12" and a maximum 
of 36" at the base of panel, unless using an opera window.  Cars running opera window will have two rear roof posts, 
minimum 1" wide.  Left and right side rear roof panels must be the same length and design

SAFETY

1.             All drivers must wear an approved Snell SA2000 or SA2005 safety helmet at all times that they are racing.  Full face helmet, 
                NO OPEN FACE HELMETS ALLOWED.  Must
have a full shield with tear offs recommended.  Fireproof gloves and neck braces mandatory.  
                 Solid center steering wheel recommended.

2.             All cars must have seat belts and shoulder harness securely fastened to the frame or roll cage.  They must be of the approved 
                 racing type with quick-release aircraft-type hook-ups.  No stock type seat belts allowed.  Belts must be 2" wide (3" recommended) 
                shoulder and 3" wide lap (crotch required).  Shoulder harnesses must be securely mounted to the roll cage no higher than 2" above 
                should level.  Belts no older than 3 years old and sternum belt.
3.             Firesuits of at least fire-retardant material will be mandatory (fire resistant recommended).  Used suits will be subject to approval
                by track officials.  Sleeves must be rolled down.
4.             All roll bars must have padding in the drivers compartment.
5.             A protective screen is required on 2/3 of the windshield opening, starting on drivers side, supported by a minimum of 3 equally spaced braces.
6.             All added weight will be required to be in block form of no less than 5 lbs. and no more than 50 lbs. and be securely bolted
                to the frame of the car with at least two 1/2" bolts securing each weight.  All weight must be painted white with the car number on it.
7.             Air cleaner must be on the car at all times while on the track.
8.             Batteries must be securely fastened and not in the fuel compartment.
9.             Pit crew outfits are recommended.
10.           No in-car radios, computer or cameras are allowed.
11.           Window net on drivers side is mandatory.

APPEARANCE

1.                Numbering on cars: Car numbers must be 18" tall and 3" wide and must be located on both sides of the car. 
                 An 18" tall roof number is mandatory, the base of the number should be on the passenger side of the roof facing the grandstands. 
2.             If the number is unreadable you will be notified to make the necessary changes.  If the number is still unreadable you will not be scored.
3.             Car numbers can have a maximum of 2 numbers and 1 letter.  If possible, we would like to avoid letters 
                unless there is duplication of numbers.  The size, color and style of  numbers must be adequate to
                 permit prompt identification by officials at all times.
4.             All cars must be properly cleaned and washed before each night of racing.

EXCEPTIONS: (IMCA, NASCAR AND LATE MODEL)
1.             No aluminum blocks and/or 18 degree heads allowed.
2.             2 barrel carburetor only.  Holley #4412 500 C.F.M. (refer to carburetor rules).
3.                Magnetos, dry sumps, stud girdles and belt drive accessories allowed.
4.             Weight-2550 minimum.
5.             No softening, conditioning, siping, or grooving allowed. May use 24 grit sandpaper only to break glaze.
6.            
If you are running any of the above exceptions, your car will have to marked with weight of 2550 on
                left front fender.  If not marked, you will be subject to disqualification.

CAR PROTEST RULES

                 1.             All race protests must be placed with a tech official in writing no later than 5 minutes after the A feature.
2.             The protest fee is $100, only one item may be protested per event and must be given to an official along with the written protest. 
                The car in protest will be checked after the main event.  If the car in protest is found illegal, it will lose all points and money for that night
                 and protester will be returned his/her $100.  If the car is found to be legal, the $100 is given to the car in protest.
3.             Drivers only may make a protest and must have competed in the “A” feature.  Track officials have the right 
                to inspect any car at any time at no charge.
4.             Track officials have the right to reject any protest.
5.             Serious technical violations will result in the same penalties as a claim refusal.  Illegal parts will be marked and kept by the track.


Questions: Please email: dwkrohn@frontiernet.net