Sportsman

Sportsman Rules

 

ENGINE RULES

  1. Steel blocks only, may be bored to casting limits
  2. Flat top pistons only. (Pistons cannot rise above deck)
  3. Crank must be stock or stock replacement (stock stroke Scat/Eagle parts legal)
  4. Balancing permitted but no lightening or knife-edging allowed
  5. Polishing stock rods allowed
  6. Any steel rods
  7. 6” rods permitted
  8. Press or floating pins permitted
  9. Wet sump oil system only
  10. No splayed main caps
  11. NO CRATE MOTORS permitted

 

WEIGHTS

  1. Cars with a 362 (.060 over bore) or smaller C.I.D. weigh 2300 LBS
  2. Cars with a 363 (.060 over bore) or larger C.I.D. weigh 2450 LBS

 

CORRECT WEIGHT must be posted on / above the driver’s side front window post!

 

Claiming the incorrect weight / motor combination will result in IMMIDIATE DISQUALIFICATION!!

 

All posted weights MUST be correct for the engine you have in your car! NO EXCEPTIONS!!!

 

ENGINE SET BACK

  1. A.     A maximum of 6” from center of top ball joint to the most forward spark plug hole

 

HEADS
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

 

CAM
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

 

VALVES
A.  Intake 2.02 max.
B.  Exhaust 1.600 max.

 

INTAKE MANIFOLD

  1. Aluminum or cast iron ONLY permitted
  2. No plastic or carbon fiber intakes
  3. No porting/polishing or grinding anywhere permitted

WATER PUMP

  1. Cast or aluminum permitted.
  2. No electric water pump.

FUEL PUMP

  1. A.     Mechanical pump only
  2. B.      No electric pumps

CARBURETOR

  1. A.     One four barrel carburetor only
  2. B.      No dominators or predator carburetors allowed
  3. C.      Engine must be naturally aspirated.
  4. D.     May use one carburetor spacer

 

 

HEADERS

A.  Any type header allowed / must run parallel to ground

 

IGNITION

  1. Any electronic or points ignition

 

SUSPENSION / SHOCKS / SPRINGS

  1. Racing shocks allowed
  2. No double adjustable or canister shocks OF ANY KIND permitted

 

STEERING

  1. A.     Any / all racing style racks permitted (Appleton, Sweet, Etc.)

 

REAR END / REAR AXLE

  1. A.     Any type of rear end / differential permitted
  2. B.      Aluminum tubes are ok
  3. C.      Wide 5 hubs allowed
  4. D.     No independent rear suspension permitted

 

TRANSMISSION

  1. A.     All transmissions must be fully functional with both forward and reverse gears
  2. B.      No direct drives

 

DRIVE SHAFTS

  1. A.     All drive shafts must be a minimum of two inches (2”) in diameter
  2. B.      All drive shafts must be painted white
  3. C.      Only one drive shaft is permitted
  4. D.     All drive shafts must be protected with a secure drive shaft hoop or sling

 

CHASSIS / FRAMES

  • Both Rectangle and Square Tubed Frames are legal

 

Square Tube Frames

  1. The frame of all cars must be constructed of two inch (2”) by two-inch (2”) minimum rectangular or square tubing with a minimum of eight inch (8”) circumference and a minimum of eighty-three thousands inch (.083”) wall thickness.

 

Round Tube Frames

  1. The frame of all cars must be constructed of a minimum of one and three quarter inch (1¾”) round tubing and must have a wall thickness of eighty-three thousands inch (.083”) wall thickness minimum.
  2. No aluminum or titanium frames permitted in construction of car
  3. If rear bumper is stubbed, it may only extend a maximum of eight inches (8”) beyond frame. Any stubbed rear bumpers that extend eight inches (8”) or more beyond frame must be rounded and directed towards the front of the car.
  4. It is recommended that all cars be equipped with a tow hook or strap.
  5. All battery supports must be braced in two axis – two horizontal and one vertical.
  6. Minimum wheelbase span of 103” inch

 

BODIES

  1. Same as Limited Late Model and Crate Late Model (see drawing diagrams for specific details)

 

SPOILER

  1. A.     Rear spoiler must be manufactured of material of adequate strength such as Sheet metal, Lexan, or Aluminum
  2. B.      Maximum seventy-two inch (72”) width.
  3. C.      Rear spoiler is not permitted to be suspended above the deck to create a “wing effect.”
  4. D.     Rear spoiler must begin where quarter panels end. No extended decks permitted.
  5. E.      Maximum of three (3) rear spoiler supports. Option of two (2) additional one inch (1”) aluminum braces.
  6. F.       Spoiler supports cannot be mounted wider than the top of the quarter panel.
  7. G.     Rear spoiler material must not exceed the maximum of eight-inches (8”) in height (measured from deck to tip of material)
  8. H.     12” spoilers will be permitted with an additional 50 lbs.

 

SEATS

  1. A.     Must have racing seat
  2. B.      Must be mounted with grade 5 or better hardware
  3. C.      Must have 4 or 5 point safety belts

 

FIREWALL

A.  A full metal fire wall must encompass the front, rear, sides, and floor of the driver

 

FUEL / FUEL CELL

       A.  Fuel cell w/steel can and 2″ steel straps mounted in rear of car only

B.  Gas or E85 only! No alcohol, nitrous oxide, nitro methane, or any other nitrate additives

 

BRAKES

  1. A.     Must be equipped with sufficient four (4) wheel braking system.
  2. B.      On track three wheel braking is allowed
  3. C.      Any type steel brakes allowed
  4. D.     No titanium or carbon fiber brake rotors are permitted

 

WHEELS / TIRES

  1. A.     Front tires open
  2. B.      All rear tires must punch / stick 52 AFTER THE RACE with the tracks durometer
  3. C.      Wheels may be steel or aluminum 14 max. wide
  4. D.     Bead locks permitted
  5. E.      No chemical treating allowed

 

WEIGHTS

  1. Cars with a 362 (.060 over bore) or smaller C.I.D. weigh 2300 LBS
  2. Cars with a 363 (.060 over bore) or larger C.I.D. weigh 2450 LBS

 

CORRECT WEIGHT must be posted on / above the driver’s side front window post!

 

Claiming the incorrect weight / motor combination will result in IMMIDIATE DISQUALIFICATION!!

 

All posted weights MUST be correct for the engine you have in your car! NO EXCEPTIONS!!!

 

NGS “General Rules” apply to all classes

 

Track reserves the right to delete, change, or amend rules in the interest of competition.

Racing Times

Grandstand:
Open at 5pm

Pits:
Open at 4pm

Hot Laps:
Start at 7:00

Admission

Grandstand:
(Standard Admissions)
Adults and Children 12 & Older - $12.00
Children 6-11 - $6.00
Children 5 and under FREE

Pits:
Pit Admission $25.00
Children 5 and under FREE