How we Run Events in 2005

Novice Classes

Street Touring 2

Street Touring U

KARTS

Street Tire

• Novice Classes --  All entrants in a Novice Class -- say, B Stock Novice -- compete for a single set of trophies. Novices run in the same run group as their Open Class. Novice classes: see also the Novice rules.

  Stock, Street Prepared, Street Touring, and Street Modified Novices may run street tires only -- treadwear rating of 140 or more. (New for 2005)
  Modified and Prepared Class Novices may use any Solo2 legal tire. 

   

• Street Touring 2 (ST2)  Two seat sportscars on street tires.

  NOTE: Section 14 will be the ST rules in the 2004 Rulebook. Sections
  
  1 thru 10 will define STS. Section 14.11 defines STX by how it varies
  
  from STS. We follow the same method as STX for defining ST2 as follows:
  
  14.12 ST2
  
  A. The ST2 class encompasses different vehicle eligibility limits
  
  than those specified for STS, and adds a limited number of allowed
  
  modifications.
  
  
  
  1. All STS allowances carry over, including street tires,
  
  emissions, etc.
  
  
  
  2. Vehicles eligible for this class include 2-seat sports cars
  
  and sports car based 2+2s (e.g. Porsche 912, 944, and 924, Datsun
  
  240/260/280Z 2+2, Mazda RX-7 2+2, etc) currently classified in CS, ES,
  
  GS, or HS. Vehicles eligible to compete in STS or STX are not eligible
  
  for ST2.
  
  
  
  3. Only factory limited slip differentials (LSD) are allowed on
  
  AWD vehicles as defined in section 12.4. For AWD vehicles which did not
  
  come with any sort of LSD, including center differential or transfer
  
  case, a single aftermarket LSD may be added. 2WD vehicles may use any
  
  LSD unit.
  
  
  
  4. Additionally Excluded cars: Lotus (all), Triumph TR-8, Renault
  
  Alpine, Sunbeam Tiger
  
  FWIW, there are 13 paragraphs that define the additional preparation
  
  allowances for STX. The above ST2 proposal includes only one.

  More info about ST2 [pdf] from 4d-sport.com.

   

• Street Touring U (STU) is a regional (SCCA supplemental) class.
  
  STU will follow the STX rule set, but will raise the displacement limit for otherwise STX-legal vehicles to 3.1 litres for forced induction and to unlimited displacement for natural aspiration. To accommodate the greater power of these vehicles, restrictions on wheel width are lifted and the maximum tire width will be increased to 275 for front or rear wheel drive vehicles (but will remain at 245 for AWD vehicles). Other than these limited exceptions, the STX rule set as described in 14.11 applies.
  
  This class extends the Street Touring concept to cars including the Audi S4, BMW M3 (E36), Chevrolet Camaro, Dodge Neon SRT-4, Ford Mustang, Mazda RX-8, Mitsubishi Lancer Evo 8, Pontiac Firebird, Pontiac GTO, Subaru WRX STi, Volvo S60 R, and Toyota Supra. 
  
  Excluded vehicles include the E46 M3 and the E39 M5. 
  
  In conjunction with the planned evolution of this category and of the sport as a whole, this supplemental class will not be considered for full national status until 2007. 
  
  Official news of STU is in FasTrack 2004 April at page F-65.
  
• KARTS 
• Kart Drivers, please tell Registration you are Karters. 
• Read and become familiar with the SFR Karting rules before the event

Karts will not be allowed to be driven under power through the paddock; they must be pushed either on the ground or on a portable stand

 

• Street Tire Stock Classes -- Run with their Open Stock Classes.  No Street Tire classes for SP, Prep, Mod, or Street Mod Classes.  Must be legal according to their stock class rules.  Must run tires with treadwear rating of 140 or more. (New for 2005)

At each event, classes generally run one run group later than at the previous event