Competition Rules

Below you will find updated rules and guidelines for all ISSCA-sponsored events. For information on a specific event, please click the links below to be taken directly to that section.
  1. Track Guidelines
  2. Putnam Park Rules
  3. ISSCA Car Show Rules
  4. ISSCA Racing Rules
  5. BOI: Best Overall Impala

Track Guidelines

Impala owners have always been meticulous in taking care of their cars, however ISSCA would like to remind you of a few minimum checks while preparing for the events!

Fluids

Fuel – There are several fuel stations located near the venues. Before you fire up the morning of the events, make sure you check your Oil, Coolant/Water and Brake fluid levels. There are also a few local speed shops, and repair facilities in town in case you need a last minute item.

Tires

We recommend 32 – 36 psi. Check them in the morning during the fluid checks and set tire pressures while they are cold.

Driving

The goal is to maximize your driving time with the focus being on safety and a quality experience for everyone.

Mandatory Safety Rules

  • Helmets must be worn on the road course, drag strip, and while auto crossing at all times. Helmets must be Snell 2005 or newer.
  • Seat belts must be worn at all times while competing, and while driving around.
  • No passengers other than the Auto Cross and slower Bracket Racing Classes will be allowed.
  • Remember long pants and closed toe shoes required at all driving events.
  • For those who have manual trans-equipped vehicles: In the event of a spin use both feet! ( Full brake, full clutch)
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    Putnam Park Rules

    Putnam has provided a PDF of their rules which is linked here so competitors always have the most current information. Download PDF
     


     

    ISSCA Car Show

    Car show rules were updated for 2016 and will carry over to 2017. Click the links below to view PDFs, or right-click and select “Save As” to download them. Updated 2016-04-29:

    Complete rules 50 cars or fewer 51 – 100 cars 101+ cars
    click here click here click here click here

     


     

    ISSCA Drag Racing, Auto Cross & Road Rally Solo 1:

    ISSCA SOP (As amended for 2012 Nats)
    CHAPTER Eight – Article Xl Sec. 2.

    If any ISSCA rule conflicts with track/facility rule, track/facility rule takes precedence.

    Track/facility rules may change without notice posted here.

    Drag Racing (ISSCA Competition Regulations)

    SAFETY

    Car and driver must comply with the local track safety rules. Many drag racing facilities require car and driver to comply with IHRA or NHRA safety rules. It is the drivers responsibility to know and comply with these safety rules.
     

    GENERAL

    1. Late entries will not be allowed missed time runs.
    2. Your ISSCA member number is your car competition number.
    3. Any sized front and rear tire is allowed.
    4. Fuel must be gasoline. No alcohol fuel allowed.
    5. There is no minimum weight restriction.
    6. Windows must be installed.
    7. Big blocks and other motor swaps are allowed.
    8. Any transmission may be used.
    9. Any drive train is allowed.
    10. Exhaust system must meet the requirements of the local track. (some tracks do not allow open headers and some actually have a maximum sound pressure level rule.)
    11. All body panels must be factory original steel, (or equivalent), except hood and bumpers (unless model year was available with aluminum panels from the factory).
    12. Hood, bumper covers, and trim can be made of any material and of any aftermarket shape or style.
    13. Suspension modifications are unrestricted.
    14. Windows will be rolled down during runs. Air Conditioning cannot be turned on in the staging lanes or during a run.
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      Racing Classes

      SUPER SPORT

      This class is ET bracket racing for all cars. There are no sub-classes.

      Super Sport class is foot brake only…. no starting line aids or electronic ET aids, no transbrakes.

      SUPER NATURAL

      This is a heads up, Pro Tree class for naturally aspirated cars.

      SUPER PRO

      This is a heads up, Pro Tree class for power adder cars (Super charger, Turbo charger, Nitrous).

       

      Note: Drag racing is essentially bracket or “run what you brung.” Based on this all years can compete together in their appropriate bracket (dial in) or Super Natural or Super Pro category.

      AUTOCROSS / ROAD Rally Solo 1

      Note, these rules may be modified based on track safety requirements.

      1. All competitors, crew, and guests must sign the waiver.
      2. No alcoholic beverages or illegal drugs will be tolerated.
      3. Snell SA 2000 or later approved helmets are required.
      4. Mufflers are required.
      5. Speed limit on site (off the track) is 10 MPH or as stated by the facility.
      6. Running numbers will be your member number or otherwise assigned at registration.
      7. Your car must be in safe running condition.
      8. You must have working OEM seat belts or better.
      9. All tires must have visible tread over the full diameter.
      10. Street tires must run at OEM recommended pressures or higher.
      11. Batteries must have the positive post insulated by either tape or padding.
      12. All loose items must be removed from the car including floor mats.
      13. Spare tire must be removed or securely fastened in place.
      14. Event will be run rain or shine.
      15. Entrants will be required to work the course at some time during the event unless otherwise stated.
      16. There will be a two second penalty for each displaced pylon.
      17. All drivers will attend a driver meeting and school if required.
      18. All entrants will be tech inspected either by track personnel or by ISSCA staff.
      19. Classification will be verified at time of inspection or registration.
      20. Windows will be rolled down during runs. A/C will be turned off.
      21. Hot-dogging, showing off or unsafe practice will earn a DNF.
      22. Passengers will be allowed with proper helmet and seatbelt/harness if track rules permit.

      Note; Two wheels off track will constitute a DNF. Off the track twice will be the end of your day!

      CLASSES – Stock, Prepared, Modified, and Race

      Determined by the Point Assessment Schedule below.

      Determine your class by adding all of the modifications outlined in the Modifications Points List.

      Point Assessment Schedule

      TOTAL POINTS

      CLASS

      0 – 2 Stock
      3 – 7 Prepared
      8 – 17 Modified
      18 and over Race

      DIVISIONS will follow the above class breakdowns, and will be designated as:

      • 1958 to 1964 is Division 1
      • 1965 to 1990 is Division 2
      • 1991 to 1996 is Division 3
      • 2000 to Present, Division 4

      MODIFICATION POINTS LIST

      TIRES, WHEELS AND SUSPENSION

      Specialty compound tires 3
      Suspension bushing replacement, excluding sway bars & shock absorbers 1
      Sway bar revision: Front = 1; Rear = 1 1,1
      Change of spring rate 2
      Brake conversion 2
      Conversion from drum to disk (front or back, each) 3
      Adjustable shocks 3

      ENGINE

      Engine displacement change (per each 3% increase) 1
      Engine swap, except for exact replacement of original 2
      Removal of emission control device, per device 1
      Any air intake system change forward of the throttle body or above the carb 1
      Fuel injection or Carb revision on stock manifold 2
      Fuel injection or Carb revision with non-stock manifold 3
      Camshaft change 2
      Valve size change and/or head modifications 2
      Ignition and/or computer module change (reprogrammed) 2
      Exhaust manifold change 1
      Exhaust system enhancements (cat back upgrade, larger dia, etc.) 1
      Turbocharger or supercharger addition 4
      Intercooler addition 4

      OTHER

      Final gear ratio change less than 20% from stock 2
      Final gear ratio change more than 20% from stock 3
      Replacement of seats with racing seats as defined by the manufacturer 1
      Battery relocation to trunk 1

      TIRES

      Stock Class- Only standard production DOT tires (or available replicas) are allowed. “Special construction” or “Special compound” tires are not allowed in the Stock class. Tires can be of any size as fitted on stock size rims. For 1958 to 1964, rims can be up to 2” wider than stock. For 1965 to 1991, rims can be 1” wider than stock.

      Prepared Class- Only DOT labeled tires are allowed, including “special construction” or “special compound” tires. These tires shall be 200 wear rating minimum

      Modified Class- Any DOT labeled tire and any rim is allowed.

      Race class- any tire and rim is allowed.

      Any rotor or drum of the same size as stock is free.

      Brake cooling ducts are free

      Nitrous Oxide bottle must be removed

      Roll bars are free

      BOI: Best Overall Impala

      The system for scoring BOI at the ISSCA Nationals 2016 is designed, as much as possible, to allot equal points to all events in the competition.

      The events to be included in BOI are:

      • Car Show
      • Sound Off (a two part event)
      • Road Course
      • Autocross
      • Drag Racing

      The Impala that amasses the greatest number of points as an aggregate in these events will be deemed to be the Best Overall Impala (BOI). It is not necessary to enter all events to participate, but is not likely that missing an event will allow a win. There will not be any places that will be awarded other than first place.

      The points available to BOI entries will be based on placement in each of the events. The placement will be among all entries in each event. (I.e. a third place will be awarded third place points no matter how many of the entries finishing above are entered in BOI).

      In each event, an entry will be awarded points as follows:

      • Car Show – Twenty (20) points for a completed judges sheet PLUS additional points based on placement (i.e. twenty (20) points for first place, nineteen (19) points for second place, eighteen (18) points for third place, etc. to a maximum of 20 places). Therefore, the first place entry will total forty (40) points, second will be thirty-nine (39) and so on to twentieth place which will be twenty-one (21) points.

      • Sound Off – Twenty (20) points will be awarded for demonstrating a working system. PLUS, additional points based on placement (i.e. ten (10) points for first place, nine (9) points for second place etc as above to a maximum of ten places) will be awarded for entries in the dB Drag portion of the competition.
      ADDITIONALLY, points will be awarded for placement in the Sound Quality portion of the Sound Off event. As in dB Drag portion, the first ten places will be awarded points ranging from ten (10) points for first place to one (1) point for tenth place. The maximum points that any entry may be awarded will be forty (40) points in this event. NOTE: Placement points will not be awarded to any entry presenting a stock or substantially stock system. Demonstrated working system points (20) only, will be awarded to such stock or substantially stock entries.

      • Road Course – Twenty (20) points will be awarded for each entry that successfully completes one lap without a DNF or black flag. PLUS additional points based on placement (i.e. twenty (20) points for first place, nineteen (19) points for second place, eighteen (18) points for third place, etc. to a maximum of 20 places). Therefore, the first place entry will total forty (40) points, second will be thirty-nine (39) and so on to twentieth place which will total twenty-one (21) points.

      • Autocross – Twenty (20) points will be awarded for each entry that successfully completes one lap without a DNF or black flag. PLUS additional points based on placement (i.e. twenty (20) points for first place, nineteen (19) points for second place, eighteen (18) points for third place, etc. to a
      maximum of 20 places). Therefore, the first place entry will total forty (40) points, second will be thirty-nine (39) and so on to twentieth place which will total twenty-one (21) points.

      • Drag Race – The scoring for BOI Bracket Race points will be conducted in the Drag race in a little different manner. Only the Bracket racing will count towards BOI. All entrants who complete the first round (win or lose) will receive 20 points. Failure to do so will result in a DNF and 0 points for the event. The winner of the event/class will receive 20 points for an event point total of 40 points. Second place will receive 19 points for an event point total of 39 points. The semi final round loser’s margin of loss will be analyzed to determine who was closest to their dial-in without breaking out; the entrant with the smallest margin of error will be awarded third place points. The other semi final round loser will be awarded fourth place points. Thereafter, depending on the size of the class, points will be awarded as follows: All “BYE” runs will be awarded to the entrant with the best reaction time during the prior round. All fouls, red lights, crossing the centerline, etc. will lose. The Drag Race Chairman will be the final arbitrator in all disputes.

      • Tie Breaker – In the event that 2 participants are tied in points, then the participant with the highest place finish in the drag race will win. If this can’t determine the winner, then the participant closest to their dial-in without breaking out from their last round will win.

      POINTS SYSTEM BASED ON CAR COUNTS PER CLASS

      1 – 4 Cars 5-8 Cars 9-16 Cars
      (1 or 2 rounds) (3 rounds) (4 rounds)
      Winner 20 points Winner 20 points Winner 20 points
      2nd place 15 points 2nd place 17 points 2nd place 19 points
      3rd place 10 points 3rd place 14 points 3rd place 18 points
      4th place 5 points 4th place 9 points
      2nd round losers
      2 points

      17 – 32 Cars 33-64 Cars 65+ Cars
      (5 rounds) (6 rounds) (7 rounds)
      Winner 20 points Winner 20 points Winner 20 points
      2nd place 19 points 2nd place 19 points 2nd place 19 points
      3rd place 18 points 3rd place 18 points 3rd place 18 points
      4th place 13 points 4th place 17 points 4th place 17 points
      3rd round losers
      8 points 4th round losers
      10 points 5th round losers
      2 points
      2nd round losers 3rd round losers
      8 points 4th round losers
      10 points
      2nd round losers
      2 points