texas pro kart challenge header 2018 a
In preparation for our 2018 racing season, please review the latest round of SKUSA RULEBOOK updates and clarifications as of 12/2/17, including:

10.5.7. Appeals
20.2.2. Number Plates Tire Pickup Visible Light Check for CR125 Cylinders
30.2.3. No bump-drafting in Qualifying

Competitors should download the 2018 SKUSA Rulebook . All rule book amendments, changes and clarifications will be posted here.

CIK KART Numbers

Starting in 2018, SKUSA will be standardizing to CIK number specifications.
This means solid yellow number panels and solid black numbers for all classes.

SKUSA National Champions - TPKC will allow you to run #1,2 or 3 in the 2017 national class you won using yellow numbers on a black background.

2017 TPKC Champions - you may choose to run #1,2 or 3 in the 2017 regional class you won using black numbers on a yellow background.
NOTE: These number panels will only be allowed within the 2018 TPKC Series.

No more letter designators.
Please refer to SKUSA Rule 20.2.2 for the dimensional specifics.

IAME Classes Shifter Classes
Micro Swift - 10-99
Mini Swift - 100-299 (200-299 reserved for overflow)
X30 Junior - 700-799
X30 Senior - 300-499 (400-499 reserved for overflow)        
X30 Master - 500-599

S1 - 100-199
S2 - 200-299
S3 - 300-399
S4 - 400-499
S5 - 500-599 (Local Option)
S4SM - 600-699 (Local Option)

Reserved Numbers
There will no longer be reserved race numbers with your memberships. Each class will be assigned a block of numbers and when you enter your first race of the TPKC series you will pick from any available numbers in that pool. That will then be your “reserved” number for the rest of that series. NOTE: You are likely to have a different number in the Winter Series, PKC, ProTour and SuperNat's so first come, first served.

Race Number Panels

Race Numbers and Race Number Panels are TECH ITEMS and
Non-Compliance will be subject to PENALTIES.
Stock Honda Classes
Honda Timing Plate: The use of the blue SKUSA stock Honda timing plate is mandated effective February 1, 2014. These are available thru most engine builders as well as the SKUSA online store. See rule

Exhaust Pipes: Only the SK-1 pipe will be allowed effective February 1, 2014, and are available thru the authorized dealers.
X30 Junior, X30 Senior and X30 Master: Only IAME X30 Engines allowed for 2017

Refer to the Classes page for details on the allowable engines and corresponding weights for the classes formerly called TaG Junior, TaG Senior and TaG Master, and all Rulebook updates and engine PDFs.

TaG Cadet Class: New Structure for 2017

The TaG Cadet and TaG Cadet Rookie classes have been restructured as Mini Swift and Micro Swift. Details are on the Classes page, and the updated SKUSA Rulebook page with the corresponding engine PDF.

Neck Brace rule

Neck braces are only mandatory for the SKUSA junior categories (including S5, Mini Swift, Micro Swift, and X30 Junior). See Rulebook section

Chest Protector rule

All Drivers under 13 years of age must have an SFI specification 20.1 approved chest protector at all times while on-track, per Rulebook section

Rear Protection

All competitors in SKUSA events are required to have full width rear protection. See Rulebook section

SKUSA On-board Camera Registration policy

All cameras used at SKUSA events must be registered prior to use and have the SKUSA inspection sticker clearly visible on the camera body. See the Tech Director to register your camera. Additionally, each camera must be clearly marked with the owner’s name and mobile phone number. Cameras without identification may not be returned. Loss of the camera on the racing surface may result in penalties, including loss of positions, loss of points, and/or monetary fines. Rule Identification.

Spec Tires
  • A total of two (2) front and two (2) rear Race Tires are allowed PER RACE DAY. However, a competitor can choose to run the same two (2) front and two (2) rear Race Tires for multiple Race Days.
  • Race Tires are defined as "stamped" spec tires purchased from TPKC. To insure availability, Race Tires should be ordered from TPKC prior to the Wednesday immediately preceding the event.
  • The Evinco “M” Red tire is the spec Race Tire and the only slick that can be used in qualifying, heats, and mains for all classes except Mini & Micro Swift. The Evinco “H” Blue tire is the spec Race Tire for Mini & Micro Swift.
  • In the event that a 'rain race' is declared by the race director, the official spec 'rain' tire is the MG-WT "wet" tire ONLY. If such tires are used during a competition session, they will be marked by the technical officials at the end of the session and will be the only set of rain tires the competitor may use for the balance of the event.
  • The TPKC Tire Desk will be open on practice days and Saturday race days per the posted event schedule. Competitors are required to pick up their set of stamped Race Tires (slicks) during these time periods. Only Race Tires (slicks) received from the TPKC Tire Desk are eligible for competition at each event.
  • Effective 1/1/16, practice tires should be the Spec Evinco tires described above. The new spec Evinco tires for use as practice tires can be purchased from TPKC/SKUSA or any authorized distributor.
Spec Fuel and Oil
  • Effective 3/17/16, VP C12 is now the spec fuel that must be used at all TPKC events for ALL classes, including X30 and Mini/Micro Swift.
  • Motul 2T Kart Grand Prix is the spec oil.
Practice and Qualifying -- all classes
  • Transponders are required in all practice and race competition sessions. You will not be allowed on the track during the race day without a transponder and will be black-flagged if passings are not being registered (consistent with your assigned transponder code) in 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 for their next competition session.
Engine Changes

See section of the SKUSA 2017 Rulebook, along with the additional clarifications below:

  1. The engine seal number (received in Registration) shall be entered by each driver on the Pre-Tech Certification form that is turned in prior to the first competition session (i.e., qualifying), and installed on the kart as instructed. This seal must remain in place for the duration of the event. See the event Technical Director for additional assistance.
  2. Engines and/or components may also be "painted" by the event technical staff at the post qualifying weigh-in.
  3. Event technical staff may inspect an engine's seal 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. It is solely the driver's responsibility to solicit and receive an engine change approval form from and executed by the event Tech Director. It is also the driver’s responsibility to demonstrate engine damage in order to get Tech Director approval to change engines. If the competitor is unable to demonstrate damage, one additional engine (total of 2) may be approved by the event Technical Director. If approved, the competitor will start the next competition session at the back of the lineup.


TPKC employs a self-certification form to facilitate pre-tech inspection. The driver initials and signs the form to certify that the listed items are in compliance. The form is then submitted on the grid for qualifying. Drivers are not allowed out for qualifying without turning in an executed pre-tech form. Spot checks of safety items will be made throughout the event and violations may result in penalty assessments. Click Here to download Pre-Tech Form.

Number Panel Vendor

Axcel Graphics logo
Please order your SKUSA number panels from Axcel Graphics.
Contact to place your order: 626-294-0075, www.axcelgraphics.com.

Texas PKC Info