2024 3rd Annual PKRA 4-Hour Enduro

Canceled Due to Insufficient Entries

Enduro Racing is about endurance as the name implies, but it is also a great team sport, and a way to challenge your own ability to race for a longer period.

PKRA’s 4-Hour Enduro Race is also a team event, with lots of excitement and challenges for pit crew, mechanics, and drivers alike. Each team will need to stop and fuel at least 3 times, they can change tires (1 set) during the race, along with other mechanical and setup which are done throughout the evening’s race. The Pit Lane will be HOT throughout the event and each team will be assigned a dedicated pit spot to use during the race.

This year’s 4-Hour Enduro Race will also include social events like a barbecue in the pit and conversations about each team and driver prior to the start of the competition.

Enduro General Information

  • Date: April 27, 2024
  • Classes: LO206 Light (320 lbs), LO206 Medium (360 lbs), and LO206 Heavy (390 lbs) on track at the same time, no age restrictions, everybody of PKRA Jr2 Approved age can participate
  • Use of spec 1 Gallon fuel jug provided and required for refueling; Only this amount allowed per pit stop.
  • MotorsportReg will be used for registration:
    • http://msreg.com/PKRA-Enduro2024
    • Each Endurance Race Entry includes 4 Driver/Mechanic wristbands
    • Registration open through April 25
    • We need at least 10 Karts signed up before April 20, or we will cancel
  • The race will be a 4-hour timed event
  • Teams of 1-4, will use the same chassis throughout the event.
    • Each driver must drive a minimum of 30 minutes.
  • Race will start rolling on the front straightaway.
  • Kart Numbers:
    • Light will use numbers 0-19
    • Medium will use numbers 20-39
    • Heavy will use numbers 40-59
  • Kart Weights (see below for details), only Jr2 PKRA drivers and above can participate:
    • Light – 320 lbs
    • Medium – 360 lbs
    • Heavy – 390 lbs
  • Vehicle Pit Spots and Grid Spots (Grid Spots right side of Pit lane) will be available on a first come, first served basis, with one per team. There will be no assignments.  Excess vehicles please park in the back row area.
  • All karts will use the BLACK Slide.
  • Spec fuel – 87 Octane Pump Gas from nearby Chevron
  • Spec tires Hoosier R70, 4.5/6.0 or 4.5/7.1



  • All racing will be under the standard PKRA rulebook.
  • No blue flags will not be thrown regardless of position or class; it is the faster kart’s responsibility to pass safely.
  • Configuration will be Clockwise Short Track, with Pit Entry via turn 1 left side towards Pit lane.
  • Pit Lane is closed in the event of a red flag OR early checkered flag, If directed into the pit lane absolutely no work may be done on the kart unless allowed otherwise.
  • Full course caution will be used if needed to recover a kart safely. No passing and reduced speed.


  • Spec fuel is 87 Octane Pump Gas from nearby Chevron, keep the large jug in the Pit outside Grid Spot
  • A Spec 1 gallon fuel jug will be provided with the entry fee that is what must be used to fill during pit stops. No other fuel jug will be allowed on the grid or used for fueling the kart.  Fuel jugs may NOT be shared between teams with a maximum of the contents of this jug used per-stop.  Funnels may be used, and a hose may be added to the end of the spout of the fuel, but the black and clear spout portions of the jug must be used.
  • When gridding for the race, teams will report to the grid with an empty fuel tank and refuel from the spec fuel jug before going out on track.
  • No excess fuel line is allowed
  • No large diameter fuel line is allowed
  • No force-fed fuel filling mechanism allowed, must be standard gravity fed non-altered fuel can.
  • Driver must be out of the kart
  • Engine must be off
  • Can be fueled either on the ground or on the kart stand


  • Briggs rulebook will be enforced
  • Head temp sensor may be run.
  • If you do have a motor failure you are allowed to put another engine on, both engines must go through tech regardless of condition after the race is concluded if requested by the tech director.
  • Engine changes may be done, if requested by the tech director both engines must be taken to tech after conclusion of the race.
  • Oil change is optional but not required.
    • If a team decides to do an oil change a catch can must be used and excess oil spillage will result in penalties.


  • Hoosier R70 (4.5/6.0 or 4.5/7.1) are the spec tire and all tires belonging to the team in the grid will be marked after qualifying/before race.
  • Tire changes are allowed throughout the race but not required.
  • Free use of tires for qualifying
  • Maximum of 2 new sets for the race, has to be marked by official.


  • The pit exit and entry will be the standard layout for short track with the exception of pit entry which will be done through Turn 2.
  • A track worker on track entry to manage karts re-entering the track.
  • When pitting you MUST raise your hand when crossing start/finish failure to do so will result in a 10 second penalty.
  • When exiting the track there will be “stopping” zones where drivers must come to a complete stop with at least 2 tires in the box failure to do so will result in a 10-second penalty.
  • The left side of the pit lane will be the travel lane and the right side will be the pit stop side.
  • Re-Fueling must be done with the driver out of the kart and engine off.
  • Driver changes must be done with the kart engine shut off.


  • Team weights will be the following:
    • LO206 Light 320lbs
    • LO206 Medium 360lbs
    • LO206 Heavy 390lbs
  • Before qualifying all teams must report to the scales to figure out how much lead is required on each kart in order to ensure that each driver of the team meets the minimum weight requirement for their class. Drivers will show up with full driving gear.
  • No weight may be removed or added throughout the race, bolts and nuts on the weights will be painted before qualifying and checked in tech following.

Be aware, driver weight will be lower after race, due to hydration.


  • If the kart has an issue on track the driver can push it back to the pits with the assistance of a track worker with direct supervision and clearance from a race director to get to the outside of the track and back to the pits.
  • The dedicated place for crossing the track will be before turn 1 after the flag stand and on the exit of turn 8.
  • A minimum of an 8-second gap between karts is required before karts can cross the racing surface.
  • Yellow flags will be strictly enforced, drivers must slow to approximately 75% of race speed when yellow flags are being waved.
    • This is one of the main reasons for picking short track, there are much fewer times a kart has to cross a live track to be retrieved back to the pit lane.


  • Radios are allowed for communication between the pits and driver.
  • There will also be a protected pit board location along the front straightaway to allow drivers to easily see the pit board information.

SCHEDULE (Tentative)

  • 2:00pm Gates open
  • 3:15-3:45 pm Practice
  • 3:00-4:00 pm Scale Open and Pre-Tech
  • 4:30-4:45 pm Qualifying (All Classes, best time set during period counts for Start position)
  • 4:45-5:20 pm Dinner Break. Kart Prep
  • 5:30 pm Report to Grid for race pre-tech. (Fuel tech and tire marking)

5:45 pm-9:45 pm Race

We need 10 Karts registered before April 20

Race responsibility:    David Heraldsen and Steen Hansen

2022 Enduro Rules for Reference