Kart Kross

Intent:

 

•  “Time attack” or “time trial” is an event where drivers are competing against the clock. The purpose is to achieve the quickest lap time possible or reach a target lap time in a single or multiple sessions.

• Time attack IS NOT a “Wheel-to-Wheel” competition.

 

Eligibility:

 

• Drivers must be age 21 or older.

• Drivers must have a valid driver’s license.

• Drivers must be familiar with colored flags, on track safety, and driving etiquette.

• Kart chassis must be adult style and resemble a CIK homologated chassis.

• Karts must be equipped with a device to log 3 or more lap times using INFRARED or GPS.

• Karts must have full width front and rear bumpers extending no further than front or rear tire maximum widths.

• Karts must have CIK style plastic bodywork consisting of front nose, front driver fairing, 2 side pods, and rear bumper. Side pods must not extend beyond maximum rear track width.

• Maximum rear track width 55”. Measured outermost edge of rear wheels.

• Maximum front track width 48”. Measured outermost edge of front wheels.

• Maximum wheel base 43”. Measured center of rear axle to center of front spindle.

• Maximum rear wheel width 212mm.

• Maximum front wheel width 150mm

• Maximum rear tire width 7.10

• Maximum front tire width 4.60

• No minimum weight.

• Open tire compound.

• Open engine modifications

• 2-stroke engines must be 125cc or less.

• 4-stroke engines must be 420cc or less

• All Karts will be subject to inspection and must be deemed safe, mechanically sound, and meet minimum requirements for a listed group to be eligible for event.

 

Procedures:

 

• Event will be held on a closed course to ensure driver safety.

• Groups and Classes will be set based on track layout, engine brand/size, and minimum lap time category.

• Drivers will be spaced evenly throughout each session. This ensures drivers will have the best opportunity to achieve quickest lap time possible.

• Drivers on track in each session will be according to their respective group and class.

• The objective of each session is for drivers to achieve the quickest lap time(s) possible without breaching their set class time.

• Drivers are expected and required to drive in a safe and respectful manner. (IE: Avoid spinouts, corner cutting, and contact with other drivers)(IE: Allow point by’s to faster drivers, raise hand when exiting track, obey officials, adhere to schedule)

• Drivers will be scored based on their quickest lap time of the event in their respective classes.

• Drivers may compete in multiple classes provided that their equipment meets the proper rules for the given class. Additional registration fee(s) will apply.

• Lap times SET for each class is the minimum lap time that will be eligible for scoring.(Ref: Class Structure)

• If a driver achieves a lap time quicker than the set lap time for their class they will have the option of moving to a quicker class. If a quicker class is not applicable then that time will not be scored for the event.

• If multiple drivers achieve an identical lap time in their respective group at the completion of the event, then their next quickest lap time will apply and determine their finishing position for the event.

• For each CLASS drivers must be able to achieve a lap time no slower than 5 seconds of set minimum CLASS lap time to maintain CLASS eligibility. If a driver is unable to do so then they will have to move down to the next available CLASS in their GROUP. If no CLASS is applicable then they will have to move to the Novice group.

• If a driver in the Novice group is unable to achieve a lap time no slower than 5 seconds of the set minimum CLASS time then they will be ineligible to take part in the event and a refund will be issued.

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Engines:

 

• 2-stroke engines can be “TAG”(electric start) , may use external starter, be direct drive, or started by pushing the kart. (IE:  Sonik, X30, Parilla sudam, Yamaha kt100, Easykart, ROK DVS, CRG ss97)

• Gearbox engines can have a maximum of 6 gears and a minimum of 2 gears. (EX: IAME SSE, Honda CR125, Rotax DD2, TM Kz10r1)

• 4-stroke engines can be pull start or use external starter (EX: Briggs 206, Predator, Flathead)

 

 

Class Structure: (BMP Outerloop 2.0 layout)

 

 Gearbox:

              Gold – CLASS 36

              Silver – CLASS 38

              Bronze – CLASS 41

 

 125cc 2-stroke:

             Gold – CLASS 38

             Silver – CLASS 41

             Bronze – CLASS 44

 

 125cc Rotax (15hp Restricted):

             Gold – CLASS 43

             Silver – CLASS 45

             Bronze – CLASS 48

 

 Spec Briggs 206:

            Gold – CLASS 43

            Silver – CLASS 45

            Bronze – CLASS 48

 

 100cc Air cooled:

            Gold – CLASS 40

            Silver – CLASS 43

            Bronze – CLASS 46

 

 4-stroke:

           Gold – CLASS 40

           Silver – CLASS 45

           Bronze – CLASS 50

​

 Spirit of the 90’s:

           Open class (must comply with regulations)

​

 Vintage:

          Open class (must comply with regulations)

                               

RWYB:

          Open class (must comply with regulations)

 

Novice:

          CLASS 49

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Class Structure: (JAX ccw + chicane)

 

Gearbox:

               Gold – CLASS 35

               Silver – CLASS 37

               Bronze – CLASS 39

 

125cc 2-stroke:

               Gold – CLASS 37

               Silver – CLASS 40

               Bronze – CLASS 43

 

125cc Rotax (15hp Restricted):

               Gold – CLASS 41

               Silver – CLASS 43

               Bronze CLASS 46

 

Spec Briggs 206:

               Gold – CLASS 41

               Silver – CLASS 43

               Bronze – CLASS 46

​

4-Stroke:

              Gold -- CLASS 38

              Silver -- CLASS 43

              Bronze -- CLASS 48

​

100cc Air Cooled:

               Gold – CLASS 38

               Silver – CLASS 41

               Bronze – CLASS 44

 

Spirit of the 90’s:

               Open Class (must comply with regulations)

 

Vintage:

               Open Class (must comply with regulations)

 

RWYB:

               Open Class (must comply with regulations)

 

Novice:

               CLASS 49

​

​

Class Structure: (BMP Full Track)

 

Gearbox:

               Gold – CLASS 50

               Silver – CLASS 52

               Bronze – CLASS 54

 

125cc 2-stroke:

               Gold – CLASS 52

               Silver – CLASS 55

               Bronze – CLASS 58

 

125cc Rotax (15hp Restricted):

               Gold – CLASS 56

               Silver – CLASS 58

               Bronze CLASS 61

 

Spec Briggs 206:

               Gold – CLASS 56

               Silver – CLASS 58

               Bronze – CLASS 61

 

4-stroke:

               Gold – CLASS 54

               Silver – CLASS 58             

               Bronze – CLASS 62

 

100cc Air Cooled:

               Gold – CLASS 53

               Silver – CLASS 56

               Bronze – CLASS 59

 

Spirit of the 90’s:

               Open Class (must comply with regulations)

 

Vintage:

               Open Class (must comply with regulations)

 

RWYB:

               Open Class (must comply with regulations)

 

Novice:

               CLASS 64

 

 

Class regulations:

               

Gearbox:

• Engines up to 125cc 2-stroke.

• May be air or water cooled

• Maximum of 6 gears and a minimum of 2 gears. (IE: TMkzr1, Honda Cr125, Rotax DD2, Easykart shifter, Honda CR80)

             

125cc 2-stroke:

• 125cc Single speed engines. (IE: X30, Rok DVS, Sonik TX, Rotax FR125, Easykart 125)

• May be air or water cooled

 

125cc Rotax (15hp Restricted):

• Limited to the 125cc Rotax FR125 original equipment engine (Evo or pre-Evo).

• Single stage “Micro Evo” style exhaust with Senior exhaust manifold

• May use Evo or pre-Evo accessories (IE: Carb, electronics)

 

Spec Briggs 206:

• Limited to the Briggs Lo206 Spec engine package with sealed block

• Engine accessories must comply with local and national rules

• All generations of engines and block seals eligible

 

100cc Air cooled:

• 100cc 2-stroke engines “Air cooled” meaning NOT water cooled or no radiator used for cooling purposes

• Single speed engines (IE: KA100, Easykart100, HPV100, KT100, JICA PV100, Formula A)

 

4-stroke:

• Maximum 225cc sized engines. (IE: Predator 212, Tilly 225, Honda GX, Clones)

 

Spirit of the 90’s

• Limited to Karts and Engines corresponding and resembling the correct original equipment of 1990-1999 era of Karting (IE: Formula A, Formula Super A)

• Non-Gearbox engines

• May be Air or Water cooled

 

Vintage:

• Limited to Karts and engines corresponding and resembling the correct original equipment of the 1950’s-1980’s era of Karting (IE: Mcculloch, DAP, Parilla, Trick, Emmick, Bug)

 

RWYB:

• “RWYB” is an abbreviation for “Race What You’ve Built”

• Karts that DO NOT comply with regulations of any other Group

• 2-stroke engines limited to 125cc

• 4-stroke engines limited to 420cc

• May be air or water cooled

• May be gearbox or single speed

• Will be subject to safety and compliance inspection before allowed to compete

 

Novice:

• Drivers who are newer and/or minimally experienced.

• Open to all chassis and engine brands provided they comply with the rules, regulations, and safety requirements.