Oval Racing

• Stock 2WD Traxxas Slash

• LCG or HCG chassis

• Any track-approved body (Must cover wheels)

• Any track-approved short course tire & wheel

• Battery must be in stock position in center of chassis

• Any 10th scale servo

• Stock or GTR shocks & springs (No aftermarket shocks)

• Ball differentials and differential lockers not allowed

• Stock Traxxas Slash slipper clutch required (No modifications allowed)

• Stock Traxxas Slash spur gear required.

• Stock Traxxas Slash or Magnum 272R transmission only

• All suspension parts must be used in original mounting locations (Left on left, front on front, etc.)

• No AVC, gyros, traction control, or any other driving assist permitted

• 2S LIPO battery @ 8.4v

• Minimum weight 2098g

Approved ESC/Motor Combinations

• Traxxas XL-5 ESC & Titan 550 12T motor

• Traxxas BL-2S system

• Hobbywing Justock 13.5 Combo in blinky mode

Approved Upgrades

• Traxxas aluminum upgrades (Excludes arms and shock towers)

• RPM Upgrades (Excludes transmission)

Rules will be updated as we learn more about the Slash Modified

• Stock 2WD Traxxas Slash Modified RTR

• Stock LCG chassis

• Stock body

• Stock tires & wheels

• Any radio/receiver combo (RX/TX)

• Any 10th scale servo

• Battery must be in stock position in center of chassis

• No AVC, gyros, traction control, or any other driving assist permitted

• 2S LIPO battery @ 8.4v

• Minimum weight TBD

• Stock 2WD Traxxas Slash

• Stock HCG chassis

• Any track-approved body (Must cover wheels)

• Stock tires (Wheel & foam change allowed)

• Battery must be in stock position in center of chassis

• Any 10th scale servo

• Stock or GTR shocks & springs (No aftermarket shocks)

• Ball differentials and differential lockers not allowed

• Stock Traxxas Slash slipper clutch required (No modifications allowed)

• Stock Traxxas Slash spur gear required.

• Stock Traxxas Slash or Magnum 272R transmission only

• All suspension parts must be used in original mounting locations (Left on left, front on front, etc.)

• No AVC, gyros, traction control, or any other driving assist permitted

• 2S LIPO battery @ 8.4v

• Minimum weight 2098g

Approved ESC/Motor Combinations

• Traxxas XL-5 ESC & Titan 550 12T motor

• Traxxas BL-2S system

• Hobbywing Justock 13.5 Combo in blinky mode

Approved Upgrades

• Traxxas aluminum upgrades (Excludes arms and shock towers)

• RPM Upgrades (Excludes transmission)

• Any 1/10th-scale buggy stock chassis (No modifications)

• Any ROAR-approved 13.5 motor & ESC (In blinky mode)

• Any track-approved buggy tire & wheel

• Battery must be in stock position in center of chassis

• Any 10th scale servo

• 2S LIPO battery @ 8.4v

• Minimum weight 1500g

Body Specifications

• Any full-fendered street stock body

• No decking

• Spoiler height: 1″ maximum off deck (No endcaps)

• Stock 2WD Traxxas Slash

• LCG or HCG chassis

• Any track-approved short course tire & wheel

• Battery must be in stock position in center of chassis

• Any 10th scale servo

• Stock or GTR shocks & springs (No aftermarket shocks)

• Ball differentials and differential lockers not allowed

• Stock Traxxas Slash slipper clutch required (No modifications allowed)

• Stock Traxxas Slash spur gear required.

• Stock Traxxas Slash or Magnum 272R transmission only

• All suspension parts must be used in original mounting locations (Left on left, front on front, etc.)

• No AVC, gyros, traction control, or any other driving assist permitted

• 2S LIPO battery @ 8.4v

• Minimum weight 2098g

Approved ESC/Motor Combinations

• Traxxas XL-5 ESC & Titan 550 12T motor

• Traxxas BL-2S system

• Hobbywing Justock 13.5 Combo in blinky mode

Approved Bodies Any Slash late model body that is a deck on a flat plane design that conforms to the following specifications

• Maximum body dimensions: 13” wide by 26.5″ long by 8” high

• Spoiler height: 2″ off-deck maximum

• Endcaps: 1.5” x 3” maximum

Approved Upgrades

• Traxxas aluminum upgrades (Excludes arms and shock towers)

• RPM Upgrades (Excludes transmission)

• Any 10th-scale race chassis (GFRP, CustomWorks, etc.)

• Side dams not permitted

• Spoiler height 2.5″ off deck maximum

• Any track-approved buggy tire & wheel

• Hobbywing Justock 13.5 Combo in blinky mode

• Any 10th scale servo

• 2S LIPO battery @ 8.4v

• Minimum weight 2098g

Approved Upgrades

• Traxxas aluminum upgrades (Excludes arms and shock towers)

• RPM Upgrades (Excludes transmission)

• Any 10th-scale race chassis (GFRP, CustomWorks, etc.)

• Side dams not permitted

• Spoiler height 2.5″ off deck maximum

• Any track-approved buggy tire & wheel (4WD front wheels not permitted) 

• Any ROAR-approved motor & ESC

• Any 10th scale servo

• 2S LIPO battery @ 8.4v

• Minimum weight 2098g

Specific sprint car class information is found in its class tab. This tab is to outline the chassis specifications for all sprint car classes.

All sprint car classes must conform to the following specifications:

Chassis Size

• Chassis length: 18″ maximum

• Chassis width: 4.025″ maximum

Cage – Sprint cars must have a scale-appearing contemporary cage made out of rounded stock.

• Cage must be symmetrical from left to right and mounted level to the chassis

• Unrealistic-shaped cages designed to exploit the rules below are not permitted

• Maximum cage width at driver halo, down tubes, and top frame rail: 3.600″

• Maximum cage height 5.5″ from top of chassis to top of cage at highest point

• Rear downtubes must slant forward

• All cage and body components such as cage, bumpers, nerf bars, hoods, side panels, tanks, etc., must be mounted on the centerline of the cage

• Chassis may not extend outside of the side panels by more than 1/4″ on either side

Bumpers

• A flat, curved, or tubular front bumper (or combination of) must be used and may not be designed to direct air or create downforce

• Maximum height of the front bumper is 1.75” from the bottom of the lowest point of the chassis

• Scale-appearing side nerf bars must be used on both sides of the car

• A scale-appearing rear hoop-style bumper must be used.

• Bumpers and nerf bars must be made of rounded stock with no sharp edge

Tail Tank – A scale-appearing rounded style three-dimensional rear fuel cell must be used.

Headers – Three-dimensional scale-appearing exhaust headers must appear on both sides of the car in the engine area

Side panels

• Flat side panels may be made from molded or fabricated polycarbonate

• Maximum height of side panels in front of the driver cockpit is 3.80” from the bottom of the chassis

• Must have a minimum of 3/4″ high by 2.5″ long openings on both sides of the cage in the driver compartment. Additional material may be used/added to either side of the side panel openings to replicate a scale-appearing driver but may not exceed 1″ x 1″. (Note that the top wing mounts may cover these openings for winged classes.)

• Side panels may not extend beyond the rear of the cage by more than 0.25”

• Side panels may not extend above or in front of the front downtubes

• Side Panels may not extend into the area that is behind the rear axle and below the top of the rear nerf bar

• Scale-appearing driver arm guards and engine vents may be used but cannot extend more than 3/8″ from the side panels

• No other flares or turnouts designed to deflect, trap, and/or form a pattern for air to travel in a directed manner are permitted except for those used to cool electronics.

Hood Area – A scale-appearing hood must be used and is defined as beginning at the front axle and ending at the front of the driver cockpit.

• Hood must be symmetrical from left to right

• Hood must be tall enough and wide enough to allow room for a scale engine intake and air cleaners (Unrealistically low or flat hoods not permitted)

• Minimum vertical gap from the top of the hood to the bottom of the front cage crossbar: .750″

• Hood may not drop below the nearest point of the side panels by more than 3/8” and may not have any channels more than 0.25” deep designed to trap or direct air

Nose Area

• A molded or fabricated nose piece may be used and is defined from the front axle forward to the front bumper

• Front bumper may not extend more than 3” from front axles

• Nose piece (any Lexan) must be at least ¼” back from the leading edge of the front bumper

• Maximum width of nose piece/bumper is 3.75″

• Maximum width of any surface designed to add downforce is 3.125”

• Nose piece may not extend above the cage downtubes or an imaginary line connecting the downtubes if the cage is a split design

Front wing/mounts

• Front wing center section may not extend in front of the front bumper

• Front wing mounts may be made of Lexan but may not exceed 1.75” in length and 1.75” in height and may not extend in front of or behind the center section of the wing

Top wing/mounts

• Top wing minimum height at leading edge: 5.00″ from bottom of chassis

• Top wing maximum height at leading edge: 6.50″ from bottom of chassis

• Center section and side panels must be made from at least 3 separate pieces of polycarbonate, carbon or aluminum

• All corners and edges must be rounded and free of sharp edges

• Top and Front wings must be mounted so that they are centered on cage (Offset wings not permitted)

• Wing center sections must have all 4 corners set at 90-degree angles, no canted or angled panels

• Wings must also be mounted level from side to side

• Center section of wing may not extend beyond leading or trailing edge of side panels

• Side panels must have braces that hold side panels rigid at 90 degrees to center section during race conditions

• Two braces are required from top of the center foil to the left sideboard and one brace is permitted below the center foil to the right sideboard

• Braces can be a maximum of .750″ wide and front edge of front brace must be no more than 1.5” back from side panel leading edge

• Side Panels may have front, back, top and bottom turnouts of no more than .375″ and are included in max dimension

• Flat foil center sections will be allowed a .250” turndown at the leading edge.

Visors

• A scale-appearing visor may be used on any wingless sprint car

• Visor must be flat and follow the contour of the front downtubes

• Visor must be no wider than the width of the downtubes where it is attached and no longer than 1″

• Front wing optional

• Top wing not permitted

• Any 1/10th scale 2.2″ tires and wheels

• Hobbywing Justock motor & ESC combo (Blinky mode required)

• 2S LIPO battery @ 8.4v

• Minimum weight 1474g

• View the sprint car specifications tab for all chassis rules required to race this class

Note: No additional Lexan or any other material may be mounted to nerf bars, bumpers, cage, wing or any other part of the car that will trap, alter, or direct air flow for the purpose of gaining an aerodynamic advantage.

• Front wing optional

• Top wing required (7″ x 7″)

• Any 1/10th scale 2.2″ tires and wheels

• Any ROAR-approved motor (open) and ESC

• 2S LIPO battery @ 8.4v

• Minimum weight 1474g

• View the sprint car specifications tab for all chassis rules required to race this class

Note: No additional Lexan or any other material may be mounted to nerf bars, bumpers, cage, wing or any other part of the car that will trap, alter, or direct air flow for the purpose of gaining an aerodynamic advantage.