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Coming Up Next:

July 10, 2009
Double Points Race

Pit Gate Opens @ 6pm
Fan Gate Opens @ 7pm
Racing Starts @ 8pm

Box Stock Animal Rules

Sponsors:


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Box Stock animal

Age 8 to 14

Minimum weight #315
$15.00 entry fee the first race of each month Purse payout will be awarded.

Trophies and championship points will be awarded

Drivers

  1. Maximum 14 yrs old. Drivers over 14 may compete with track official approval.
  2. Must have serviceable fire extinguisher in pit.

Frames

  1. Any production, custom-built or fun kart frames allowed. (Quarter Midget cars OK)
  2. Must be made of steel. No aluminum or titanium material.

Body

  1. Bodies are mandatory.
  2. Fiberglass, aluminum, plastic or steel bodies.
  3. Wings roof or front allowed. Top wing sides must stay within 3” from outer most edge of kart No sharp edges. Top wing size 3’x3’x 16” sideboard.

Bumpers & nerf bars

  1. Front and rear bumpers required of Max 1" O.D. tubing. Not to exceed outside tread width of tires.
  2. Bumpers and Nerf bars must have rounded or capped ends. No sharp edges.

Roll cage & seat belts

  1. Minimum 4 pt roll cage mandatory. Roll cage must be securely welded or bolted to frame.
  2. Minimum 3" head clearance. No conduit cages.
  3. Cage must be constructed of steel no smaller than 3/4" O.D.
  4. Minimum 4-point seat belt. Aluminum racing seat is recommended.
  5. Right side cage net, right side helmet support or a helmet restraint is mandatory.

Wheels and tires

  1. Any wheel or tire allowed.
  2. Grooving allowed.

Brakes

  1. Must be capable of stopping kart within a safe distance.

Drive train

  1. Live axle only
  2. Chain guards are required.
  3. Any centrifugal drum or disc clutch no wet clutches.

Engine: slightly altered WKA rules

  1. Stock Briggs & Stratton Animal
  2. Header exhaust pipe with flanged end may be used.
  3. Fuel pump, air cleaner and ignition timing are non-tech

Fuel

  1. No performance enhancements or additives allowed.

 

DISCLAIMER Reflect

The rules and or regulations set forth herein are designed for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. The rules shall govern all entrants. NO EXPRESS 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 deviations from any of the specifications, herein, or impose any further restriction, 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 deviations of these rules is left to the discretion of the officials. Their discretion is final.
January 1, 2009
Texoma Motor Speedway
Wichita Falls, Texas

 

STOCK 6.5 HP ANIMAL TECH SPECIFICATIONS
WKA tech rules.

Cylinder blocks: (max. .030 bore) (piston pop up +.005" MAX).

Converted Inteks must run Animal head

Piston: stock Briggs pistons installed per. Manufacturers specs. (Arrow to mag. side, no machining)

Rod: Any stock length rod can be used.

Crankshaft: Stock crank. (Stock dimensions)

Flywheel: Stock Jr. Racecar or Briggs PVL. (Stock magneto)

Cylinder head: Combustion chamber floor depth, no less than .319!

Combustion chamber squish band areas around plug and bottom portion of chamber no less than .011! (Will be measured with a quality depth gauge and will have 0 tolerances.)

Valves:  Intake OD min. & max. 1.055 - 1.065, Exhaust OD min. & max. 935 - .945 (valve length 3.372 +/- .010 will be used for tech)

Valve springs: Stock valve springs. (Or stock replacement to exact stock specs)

Camshafts: will be profiled out using a degree wheel with WKA specifications. (Maximum cam lifts .255) (Gross valve lift will be teched @ valve spring retainer .252 maximum lift with no lash)

 Lifters: stock replacement only.

 Push Rods: Stock length. (5.638-5.656 minimum and maximum length)

 Rocker Arms: Stock replacement only. (No alterations of any kind, comparison to a known stock part will be used)

Valve Cover: Stock valve cover with working stock baffle.

Carburetor: Items that drop from the bottom of carburetor with bowl off are not tech items:
Examples: main jet, pilot jet, float, needle and seat, emulsion tube.

Intake manifold: The only alteration allowed is slotting of holes for proper alignment.

Restrictor plate: Other than color and hole dimension/dimensions plate should be installed with tab facing to left
 
Fuel pump pulse line: (top oil fill on side cover is the only allowed place)

Crank case ventilation: (from valve cover only)

Starter: Any type starter allowed.

Notes: These engine tech specs can be changed at any time per tracks updates.

All engine parts, except listed allowed changeable parts can be teched to a known stock Briggs Animal part.

Notes: This is a stock engine class and if anything is altered or replaced other than what is listed in this engine spec sheet it does not fit the mandated requirements.

To find engines and parts for this class check with your Briggs & Stratton Motorsports dealer.

 

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