2013 NGS Sportsman division rules
A. Steel blocks only, may be bored to casting limits.
B. Flat top pistons only. Cannot come above deck.
C. Crank must be stock or stock replacement (stock stroke Scat/Eagle parts legal).
D. Balancing permitted but no lighting or knife-edging allowed.
E. Polishing stock rods allowed.
F. Any steel rods
G. 6” rods permitted
H. Press or floating pins permitted
I. Wet sump oil system only.
J. No splayed main caps.
A. Any STEEL OEM 23 degree head allowed (GM Bowtie Steel head legal).
B. No porting or polishing allowed.
C. Combustion chamber to be no cc limit.
D. No machine cuts or grinding in combustion chamber ports.
E. NO SHAFT MOUNTED ROCKER ARMS.
A. Any hydraulic or flat tappet cam and lifters allowed.
B. Lifter diameter must be OEM for make.
C. Roller rockers allowed.
D. Any valve spring permitted.
A. Intake 2.02 max.
B. Exhaust 1.600 max.
A. Aluminum or cast iron ONLY permitted. No plastic or carbon fiber type.
B. No porting/polishing or grinding anywhere permitted.
C. One four barrel carburetor only.
D. No Dominators or Predator carbs. allowed.
A. Any type header allowed / must run parallel to ground.
A. Any electronic or points ignition.
A. Any clutch system permitted.
Option: Bert or Brinn etc.
Track reserves the right to add or take away weight based on competitiveness.
B. No direct drives allowed.
THERE WILL BE NO CRATE MOTORS allowed in this class, if you got a crate motor and a jig car, run crates!
One lb per lap burn off after feautre ONLY..
A. Standard Dirt Style body required. A stock appearing Monte Carlo/Grand Prix/Taurus etc. Style nose is required. NOTE: Nose and Rear Roof Supports must match body style. For roof size and roof support size (See Drawings).
B. All cars must have type of car displayed on body, with 3” inch minimum letters.
C. No wedge style bodies, no roof mounted spoilers or wings.
D. No lips allowed anywhere on the nose or body.
E. All cars must have a minimum of 1-1/2”inch roll at the top of the fenders, doors and quarter panels, a sharp edge will not be allowed. Body roll must go from sides over upper body, not upper body over sides. A single strip affixed to the edge and pop-riveted will not be allowed.
F. No part of deck lid may extend beyond quarter panels at rear.
G. All cars must have a number at least 18”inches high, clearly visible and identifiable on both sides and on roof. All cars must have numbers at least 3” inches high on nosepiece in the approximate position of the headlight, and at the rear on the fuel cell, at least 6” inches high, in a visible position. This rule is for the benefit of all competitors who wish their car to be scored correctly on each lap. In the event of more than one car with the same number, where confusion may occur, a team may be asked to alter their number in some way to avoid any misunderstanding. The first car to sign in will take precedence in retaining its original number.
A. The interior bodywork of the car may be dropped to a maximum of 3” inches below the top of the doors, and must also be a minimum of 11” inches below the roll cage.
B. If a dropped interior is used, the interior panel must fasten flush at the top of the doors, and must taper gradually towards center of car, without creating any lips. The minimum taper allowed will be 8” inches.
C. If a dropped interior is used, it must taper up, in a straight line, to the quarter-panel height and be flat and level for a minimum of 32” inches to the end of the rear deck-lid / quarter-panel / spoiler.
D. If interior is flat throughout the car, it must maintain a minimum clearance of 11” inches from the roll cage, to allow for easy exit.
E. If interior is flat, the panel must run in a straight line from immediately behind the driver’s seat to the base of the spoiler / rear of deck lid.
A. Nose extensions must be flexible, and must not extend outside front tires with wheels pointing straight ahead. They cannot alter original shape of nosepiece, and must be braced with collapsible supports, No steel supports.
B. A stock appearing nose must be used; it must be made of molded type material and must be mounted level. No material may be removed from, or added to nosepiece, no cutting from bottom, top or sides. Fender flares must not alter original shape of nosepiece.
Minimum heights for stock nosepieces are as follows:
Camaro 18” inches /Firebird 18” inches /Avenger 18” inches /Monte Carlo 20” inches /Grand Prix 20” inches /Mustang 20” inches /Taurus 20” inches /Intrepid RT 20” inches.
C. These are the minimum vertical measurements from the bottom of the nosepiece, where sheet metal is attached.
D. Inspector to determine specs on any make not mentioned.
E. Two – piece nose must be fastened together without any spacers to increase width.
F. Stock nosepiece may extend to a maximum of 48” inches from center of front hub to furthest point forward.
G. Tow hooks are mandatory, whatever style of nosepiece is used.
FRONT FENDERS AND HOOD:
A. Must be level and flat from left side to right side of car and, at least, as far back as firewall / engine plate.
B. No part of fenders or hood may be below outside bodyline.
C. Fenders may not gain height from rear to front of car.
A. Top of doors, on both sides, can be no higher than 36” inches from ground, with a maximum material depth of 32” inches including any skirts or body extensions.
B. At no point may doors break in towards center of car. No dishing.
ROOFS – MANDATORY:
A. All models regardless of brand will have the following roof dimensions.
Minimum – 48” wide X 46” in length.
Maximum – 50” wide X 51” in length.
B. Roof post / supports are mandatory.
C. All posts must go from roof edge to outside edge of body on both sides.
D. Rear roof post must be flat, not curved.
E. Roof supports dimensions:
40” minimum to 43” maximum across the bottom (SEE DRAWINGS) The roof supports must be aligned from side to side on all cars. The roof support windows must be cut out the same size on both sides. Holes may be filled with Lexan.
F. Front post must be flat and of uniform width from top to bottom 2” inches minimum, with a maximum 1-inch break at top and bottom.
G. No flat or odd shaped roofs.
H. A maximum 1” inch roll is allowed along the front edge of the roof, a maximum 1” inch roll is allowed along the rear edge.
I. Any sun / anti-glare shields (maximum 4” inches) deep must be hinged for easy exiting.
REAR QUARTER PANELS:
A. No offset quarter panels except taper from both sides towards center of car.
B. Tire clearance from doors and quarter panels must be a minimum of 2” inches tire must be fully visible from the side no wheel skirts.
C. At no point may quarter panels break in towards center of car. No dishing.
A. Rear spoilers only – must be securely attached to top of rear body along entire width.
B. No material height adjustable type spoilers allowed. Spoiler may be hinged to rear body to allow for change in angle of deflection.
C. No more than three (3) spoiler supports may be used.
D. Spoilers may be made of sheet aluminum or a transparent material, such as Lexan, and of adequate strength.
E. Open motor spoiler may have a maximum size of 8” height, by 72”width.
F. All steel motor spoilers may have a maximum size of 8” height, by 72” WIDTH.
G. Note: Gurney Flaps total length of and width of material, in any shape or Curls are allowed along the upper edge of the spoiler, but their length will be included in all measurements.
CHASSIS / FRAME:
A. No aluminum frames or front clips. All frames must be of steel construction, and must be as minimum of 2” by 2” square, or rectangular, with a minimum material thickness of .083” inch.
B. If round tube frame, tubing must have a minimum of 1-3/4” outside diameter, with a minimum material thickness of .083” inch. These frames must use 4130 chrome moly steel for construction.
C. No front bumpers allowed. Rear bumpers allowed, may be re-enforced, but no rear extensions except for push bar. Push bar must not extend more than 6” beyond rear quarter panels, and must have welded supports to frame at each end. In any case, bumper may not extend beyond center of rear tire.
D. Wheelbase a minimum of 103” inches.
E. No wings or tunnels of any kind allowed underneath the body or chassis of the car.
A. All cars must have a suitable steel roll cage protecting the driver’s compartment, including headrest.
B. Side roll bars are mandatory, and must extend into the door panels.
C. A minimum of three (3) bars must be used on the left side.
D. Each bar must be at least 1- ½” in diameter, with a minimum material thickness of .083”.
E. Roll cages must be welded to frame.
DRIVER COMPARTMENT / SAFETY:
A. A full metal firewall must encompass the driver’s compartment – front, rear, sides and floorboard.
B. Driver’s seat must be of a proper racing seat design, located on left side of car and securely attached to frame.
C. A full racing seat belt harness must be used, harness must be secured to frame, not seat.
D. All cars must have a quick release type steering wheel.
E. All cars must have a working starter, operated from inside car.
F. Battery must not be located in drivers compartment.
G. We strongly recommend that all cars have an approved fire extinguisher system, securely mounted, within easy reach of the driver. A 5 lb. Halon System is recommended.
H. All drivers must wear full fire resistant uniforms.
I. No electronic or computer controlled devices or data acquisition systems allowed.
FUEL CELL / FUEL:
A. An approved fuel cell (32 gallon maximum) must be securely mounted in the trunk area of the car, inside a .20 gauge metal box supported by a minimum of two 2” inch by 1/ 8” inch steel straps.
B. All fuel cells must be completely visible from rear of car.
C. Fuel cell must not be mounted lower than bottom of quick-change rear end.
D. Gas OR E85 only – No alcohol – No nitrous oxide, nitro methane or other nitrate additives.
A. Drive train must have transmission, mounted on rear of engine – no direct drive or in-out boxes.
B. Any transmission, with working forward and reverse gears permitted, and must lead to one drive shaft.
C. All drive shafts must be painted white or silver, and must be protected by a minimum of one (1) safety hoop or a sling.
A. Any type of rear end / differential permitted.
A. All cars must have operational four wheel braking.
B. No carbon fiber brake parts will be allowed.
A. Any brand or type of wheel allowed must be mounted with lug nuts.
B. No knock-off or center lock wheels.
C. Maximum wheel width – 14” inches.
D. Maximum width, side to side on outside of front tires 90” inches.
E. Maximum width, side to side on outside of rear tires 88” inches.
F. Any racing shock but no canister shocks and no double adjustable shocks.
1. Hoosier 1600’s 1350’s
2. American Racers 48’s and 56’s
3. All 4 corners no longer open front.
Any driver using a approved safety device such as a HANS or other type neck restraint will receive a 50 lbs weight break.
All Sportsman’s must weigh 2300LBS with a 360 (.060 over bore ) and smaller C.I.D.
All Sportsman with any engine combo bigger than 361 C.I.D. MUST weigh 2450 LBS
CORRECT WEIGHT MUST BE POSTED ON “A” PILLAR! ” if you are found claiming weight for one motor combination but running the other then you will be DQ’ed. ” Weight MUST be correct for the engine you have in your car.!