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2018 OSKCS Rules

The rules stated in the rule book PDF link below shall govern all race events, regardless of location.  Changes and corrections/clarifications may be made at any point throughout the season.  At least 30 days notice or 1 race date passing will be required for rules changes to take affect.

OSKCS 2018 RULES BOOK (PDF) -- Updated January 20th, 2018

2018 Class Specifications Table: The following are the list of official classes for the current OSKCS Championship season. IMPORTANT: See rule book for details, including support for other classes (section 4.2)

LeCont Red Classes

Class Engine Format Age Tire Fuel Rule Set Wt (lbs)
Kid Kart Comer 50 N/A 5 to 7 LeCont Red Gas *1 IKF 160
Junior 1 Briggs Animal w/ Blue Slide 2 Heat, Main 7 to 13 LeCont Red Gas *1 IKF 260
Junior 2 Briggs World Formula 2 Heat, Main 12 to 15 LeCont Red Gas *1 IKF 325
WF Med. Briggs World Formula 2 Heat, Main 16 up LeCont Red Gas *1 IKF 365
WF Hvy. Briggs World Formula 2 Heat, Main 16 up LeCont Red Gas *1 IKF 390
LO206 Jr. I Briggs LO206 w/ Blue Slide Heat, Main 7 to 13 LeCont Red Gas *1 IKF 240
LO206 Jr. II Briggs LO206 Heat, Main 12 to 15 LeCont Red Gas *1 IKF 320
LO206 Sr. Briggs LO206 Heat, Main 15 up LeCont Red Gas *1 IKF 360
LO206 Masters Briggs LO206 Heat, Main 30 up LeCont Red Gas *1 IKF 360
Gas *1 - Gas must be non-ethanol, non-oxygenated 92 Octane Gasoline
For above non-LO206 classes, Bridgestone YLP rain tires are required.
For above LO206 classes, Bridgestone YLP or LeCont White rain tires are required.

All Other Classes
(Format: Heat, Main)

Class Engine Age Tire Fuel Rule Set Wt (lbs)
TaG Sr* Parilla Leopard 16 up LeCont White, Evinco Red, or MG Yellow Gas *2 SKUSA 355
Rotax 360
X30 365
X125 365
TaG Jr* Parilla Leopard 12-15 LeCont Red, Evinco Blue, or MG Red Gas *2 SKUSA 330
Rotax Jr. 310
X30 330
X125 330
TaG Cadet* Rotax Micro 7-13 LeCont Red Gas *2 IKF 220
Rotax Mini 245
IAME Mini Swift 235
X125 245
S2 Shifter 99 Honda CR 125 14 up LeCont White, Evinco Red, or MG Yellow Gas *2 SKUSA 385
S4 Shifter 99 Honda CR 125 30 up LeCont White, Evinco Red, or MG Yellow Gas *2 SKUSA 405
Yamaha Yamaha KT-100 16 up LeCont White Gas *2 IKF  
w/ expansion pipe 360
w/ RLV-3 pipe 350
Gas *2 -- One of: VP MS 98, VP VP-110, ERC 110, K&S 110, or VP C-116
Gas *3 -- 92 Octane from [Mac: Mobile near Wilco on 99W. PARC: Wilsonville or Canby Chevron]
The O2s Championship presented by WORD Racing includes TaG, and Shifters. The TaG classes are TaG Cadet, Jr, and Sr. All TaG engines (including old & new Rotax engines) are welcome to participate in the O2s Championship. See their website for details.
For above classes, Bridgestone YLP, LeCont White, Envico WT, or MG WT rain tires are allowed.

OSKCS 2018 RULES BOOK (PDF)

Typical Race-Day Time Schedule

  • Gates Open - 7:30 AM
  • Practice - 9:00 AM
  • Qualifying - 11:00 AM
  • Races - 12:30 PM

 

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