General Rules
All races will be 4 minutes in length, qualifiers will use Ifmar starts. Turn marshals may not work on or repair cars. If a pit lane is available all cars must enter and exit the racing surface via the pit lane at all times. Any cars damaged and placed in the infield will remain there until that race is over. All drivers must turn marshal the race immediately following their race. Race directors will have ultimate authority over rules enforcement. The primary basis for any rules decision must be based on what will be best for the majority of racers. If an item is not addressed in the rules listed here than you should assume it is not legal. Chassis Specifications: All height measurements are from bottom of chassis unless otherwise noted. Nitro Sprint Cars Must have scale appearing cage, hood, side panels, nerf bars and bumpers. All electronics, radio gear, fuel tanks must be positioned inside the cage. Rear cage side panels may be used but may not extend beyond rear cage frame. No 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. Must have appropriate openings on both sides of cage in driver compartment, forward portion of side panels can be no taller than highest point of hood. Wheelbase: 9.500” min, 11.000" max Maximum width: 10.250" Max wheel diameter: 2.2” front and rear Max wheel width: 1.750” rear, 1.000” front Max tire width: 1.850” rear, 1.250” front Rubber Mini Pin or Step Pinned tires only Wing Wing center section: 7x7” + 1” spoiler L.S.- 5"TALL X 8"LONG R.S.- 3 3/4"TALL X 8" LONG FRONT WING-CENTER -4 3/4W X 3 1/16 LONG MAX. L.S.-3 1/16 X 1 1/2" W R.S.-3 1/16 X 1 1/2" W Center wing must be made from at least 3 separate pieces of polycarbonate or lexan material, no one piece wings. Aluminum center sections may be used as long as there are no sharp edges. Main and Front wings must be mounted so that they are centered on cage, no offset wings. 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 panel rigid at 90deg. 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 side board. 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. Engine Any smallblock .12 or RTR .15 2WD ONLY AND NO 2 SPEEDS AND REAR WHEEL DRIVE ONLY Headers are prefered on the right side but not mandatory SMALL BLOCK EDM/TRUCK EDM Body styles only All bodies may have a 2” rear spoiler measured from the deck lid. The spoiler can be no wider than the bodies rear deck area. There is not be any side dams, but may run a sail panel that follows the roof line and must not be any taller than the roof. May not attach a sail panel to the body, it must be built in to it’s design. Any small block engine up to .20 and all engines greater than .15 cu. In. must be of the RTR variety All vehicles must run rubber truck tires and truck weels front and rear. 2.2 inch max rim size. WHEEL BASE 10.75 - 12.5 MAX WIDTH -13.0 MIN WIDTH -11.0 2WD ONLY AND NO 2 SPEEDS AND REAR WHEEL DRIVE ONLY Electric Sprint Must have scale appearing cage, hood, side panels, nerf bars and bumpers. Minimum of a 4 post cage required that resembles a drivers cockpit. All electronics must be positioned inside the cage side frames. Rear cage side panels may be used but may not extend beyond rear cage frame. No 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. Must have appropriate openings on both sides of cage in driver compartment, forward portion of side panels can be no taller than highest point of hood. Maximum Length: 18.000" Maximum width of hood: 3.600" Maximum cage width at driver halo, down tubes, and top frame rail: 3.600" Minimum vertical gap from top of hood to front cage crossbar: .750" Wing minimum height at leading edge: 5.000" from bottom of chassis Wheelbase: 9.500” min, 11.000" max Maximum width: 10.250" (rubber tires) Max wheel diameter: 2.2” front and rear Max wheel width: 1.750” rear, 1.000” front Max tire width: 1.850” rear, 1.250” front Rubber Mini Pin or Step Pinned tires only Wing center section: 7x7” + 1” spoiler L.S.- 5"TALL X 8"LONG R.S.- 3 3/4"TALL X 8" LONG FRONT WING-CENTER -4 3/4W X 3 1/16 LONG MAX. L.S.-3 1/16 X 1 1/2" W R.S.-3 1/16 X 1 1/2" W Center wing must be made from at least 3 separate pieces of polycarbonate or lexan material, no one piece wings. Aluminum center sections may be used as long as there are no sharp edges. Main and Front wings must be mounted so that they are centered on cage, no offset wings. 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 panel rigid at 90deg. 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 side board. 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. Motors & Batteries Any Brushed or Brushless Motor Any Nimh or up to a 2 cell 7.4v lipo Battery Headers are preferred on both sides but not mandatory 1/8 SCALE LATEMODEL BODY Any production based 1/8 offroad buggy/car chassis Can run either Ofna Tire Part number 86505 or Losi Tire Part number LOSA 17768B There will not be any grooving of the tires Does not have to be the pre-mounts, but must be that tire. Must run a OEM 6 gear diff or Torsen diff, in front and rear end of the car May run a working diff or a spool for the center diff Can run up to a 3” Spoiler measured from the deck lid Added winglets can be up to 2.5" high ” x 4.5” in length, maximum of 3 across the rear spoiler. Winglets cannot be rectangular or square in shape. Cannot be any higher than the spoiler. There cannot be any sharp edges. Any Nitro Engine Single speed transmission only No restrictions on window openings Body must fully cover the wheels. 1/10 Electric Truck Any production based 1/10 scale electric truck May run EDM body, molded Imca Body or a Truck Body Molded Imca Body or Truck Bodies may run a 3" x 5" side dam and upto a 3" spoiler. All vehicles must run rubber truck tires and truck wheels. Front and rear 2.2 inch max rims size. Any brushed or brushless motor Any Nimh or up to any 2cell 7.4v lipo battery. Single Speed 2wd transmissions only Rear Wheel Drive only |
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Dirt Oval Rules |