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2006 / 2007 Competition Rule Book
Competitors can download the 06/07 SuperKarts! USA competition rule book in PDF format by clicking here. All rule book amendments, changes and clarifications will be posted here.

CIK Rule Book:  Section 20.3.3 of the SKUSA 2006-07 rule book states “FIC Engine Specifications: All CIK-FIA Rules and Regulations for ICC engines, standards and their components will be enforced unless specificed otherwise in this rulebook.”  Click here for a copy of the CIK/FIA Karting Technical Regulations.
Engine Changes - The following language supercedes section 20.3.1.9.1 in the SKUSA 2006-07 Rule Book:The intent for allowing engine changes during an event is to recover from a component failure and NOT to take advantage of brand/model specific performance characteristics for a given track configuration.   

  1. The engine serial number shall be entered by each driver on the Pre-Tech Certification form that is turned in prior to qualifying.
  2. Engines and/or components will be “painted” by the event technical staff at the post qualifying weigh-in.
  3. Event technical staff may inspect an engine’s serial number and/or “paint” at any time during the event.
  4. Any engine change subsequent to qualifying MUST be pre-approved by the event Tech Director and if not, will result in a DQ and loss of points for ALL prior race sessions and a last place start in the next race session
  5. Change to a brand or model not identical to the original engine is NOT allowed and will result in a DQ and loss of points for the entire event. Note: Engine builder is not a factor in determining same brand/model.
  6. It is solely the driver’s responsibility to solicit and receive an engine change approval form executed by the event Tech Director.
  7. For TaG classes only, a competitor must declare an engine brand prior to their first WinterNats competition session.  For the rest of the WinterNats series, only one engine brand change is allowed and such change may not be made during a race weekend.  Note:  Should a competitor not declare an engine brand explicitly, the engine brand used in their first competition session will be deemed an implicit declaration.
S3/S4 - Cylinders: ‘97 cylinders are legal.  On track and dyno testing (including SuperNats X and XI competition) has shown that the ‘97 cylinders are, at best, comparable to ‘99-’01 cylinders.  This change is in recognition of the fact that Honda has freely substituted ‘97 cylinders in ‘99 kart engine kits. On all Honda cylinders, some factory grinding, done prior to the Nikasil process is present. The Technical Director reserves the right to approve or disapprove any cylinder supplied by Honda and not modified. In other words: Some stock O.E.M. cylinders may not be acceptable for SKUSA competition
TaG Air Box - must be pre-2004 CIK homologated or RLV with two inlet tubes not to exceed 22.0mm (+/- 1.0mm) and 95.0mm minimum length. Air boxes may not be modified although the rubber flange may be trimmed on the inside of the air box to the flange lip. Aftermarket internal foam air filters are allowed as long as no modification is made to the air box itself. The position of the air box is non-tech. Rotax airbox must remain as per RMC rules.
TaG Starter Batteries - Starter batteries must be of a sealed or dry cell design and securely mounted.
TaG Auxiliary Starters:   

  • The intent of this rule update is to allow temporary auxiliary starting for TAG engines in the event of a starter system failure. It is not intended to replace the on-board system. As such, use of an auxiliary starter on consecutive race days could result in penalties being assessed.
  • In the event of a starting system component failure, an auxiliary starter may be used without penalty.
  • Regardless of the starting method employed, all starting system components (including charging system) must be installed per OEM specifications at all times. Failure to comply with this requirement will result in disqualification.
  • Any competitor using auxiliary starting may be subject to additional tech to verify complete starter system installation and legitimate component failure at the discretion of the Race Director.

WinterNats 2008 Specific Rules and Procedures
WinterNats 2008 rules are per the SKUSA 2006-07 Rule Book including clarifications and exceptions as stated below and in the Event Info Sheet found in your registration package. Watch here for latest updates.

Sticker Policy: Failure to comply with the WinterNationals sticker policy will result in the forfeiture of any points, purses and/or prizes won by the competitor. Click here for details.
Air Filters:  If allowed by track management, Moto engines in S1, S3, S4 and G1 have the option of airboxes or air filters.  CalSpeed and Qualcomm allow air filters on Moto engines in lieu of airboxes.
Spec Tires: Click here for race tire policies.
G1 and TaG Master age certification: At registration, present your birth certificate or current drivers license for age confirmation.   

  • For G1, your birth date must be prior to 12/31/1973 to be eligible.
  • For TaG Master, your birth date must be prior to 12/31/1978 to be eligible.
S4 age/weight certification: At registration, present your birth certificate or current drivers license for age confirmation.   

  • If your birth date is after 12/31/1973, you will be weighed with optionally (i) full driving gear (suit, shoes, rib vest, gloves, helmet) or (ii) street clothes. There can be no added weight beyond the above described accessories and you must weigh a minimum of 200lbs to be eligible.
TaG Rotax:  All engine components and installation requirements are to meet RMC (Rotax Max Challenge) rules.   

  • Jetting – open jetting as per published IKF and TAG/USA. Due to the wide variety of altitude and other environmental factors present in the United States most organizations allow such jetting changes. #40 slide must be retained.
  • Engine tech seals — may be run with or without seals but must meet all RMC rules as above. Competitor will be responsible for any resealing required after technical inspection.
Practice and Qualifying all classes:   

  • Anyone in the wrong practice group will forfeit the next practice session (if the last practice session for the day, forfeit the warm-up the next morning).
  • Transponders are required in all practice and race competition sessions on Saturday and Sunday.  As such, you will not be allowed on the track without a transponder and will be blackflagged if passings are not being registered (consistent with your assigned transponder code) on the T&S system.
  • Anyone who misses their qualifying session or is in the wrong qualifying session will be assigned a “no time” and start at the back of the field in their respective class.
Spec Fuel and Oil:  VP MS98 for ICC, TaG (including Rotax)and Spec Honda.  VP C12 for built motos (S1,G1). Motul Kart Grand Prix 2T is the spec oil. Mixing ratio is not controlled.
Pre-Tech: SKUSA employs self certification to facilitate pre-tech inspection.  Click here for details.
Lapped Drivers: Drivers about to go down a lap on the leaders will be given the removal flag (Black Flag) and must exit the track the next time by the pit-in lane. Removed drivers will be scored based on laps finished up to the point of removal. Failure to heed the removal flag may result in penalties.
Dead Engine Pits - Other than on the track, the only places where a kart can be moving under its own power are (i) in the pre-grid areas, (ii) in the Hot Pit and (iii) in the exit lane leading to the scales.  Karts must be pushed from pit to the pre-grids and from scales to the pit.
Pit Vehicles - No motorized vehicles of any kind are allowed in the pits, including cars, trucks, golf carts, motorized devices, etc.  Bicycles are OK.  We don’t want to detract from the on-track focus with unnecessary accidents in the pits.  Persons with disabilities are excluded from this restriction and may utilize electric powered transportation devices.