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NEWS

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DATES

Friday - May 27, 2022 
Practice Noon-5pm  
One heat one main club race 

Saturday - May 28, 2022
Two Hour Open Practice 
Two 4 minute qualifiers 
One 4 minute main event



CLASS INFO

Classes:  

  • Open SC Modified 
  • Open Midwest Modified 
  • Open SC Late Model  
  • Open Sprint  
  • 13.5 Hobbywing Stock Sprint  
  • Open Late Model  
  • 1/8th Scale Late Model  
  • 13.5 Buggy Street Stock  
  • 13.5 Wingless Sprint  
  • Traxxas Slash Street Stock  
  • Oval Truck  
  • Novice

RULES

General Rules and Format

DODC Rules Package for applicable classes.

OPEN SC MODIFIED: 

MOTORS: Open Modified Motor
BATTERY: 2 cell hard case lipos. do not need to be roar approved.
TIRES: open tires but must be a sc based wheel and tire. No gyros or driving assist devices allowed.
CHASSIS RULES:  Must be a SC Based Chassis

Carbon fiber chassis allowed. Must meet the following specs. 
All suspension components, transmission, front and rear bulkheads must be on center line of the vehicle.
All larger volume OEM Chassis are legal IE “AE,TLR,Traxxas”
Aftermarket or specifically built chassis and kits must conform to the following specifications.
Maximum Chassis width 7”
Minimum Chassis width 5 1/8”
Maximum left side of chassis can be from centerline is 3 1/2”
Right side must be a minimum of  2.25” from centerline to outside edge of chassis.
Cages: Must represent a cage, no solid plastic cages, must be cut the same on both sides.
Minimum wheelbase 12.5”
Maximum wheelbase 13.5”
Shock bodies min length 1”
Front Track width Min  11.42”  *Updated To Meet Roar Specs*
Front track width Max 11.65”    *Updated To Meet Roar Specs*
Front Suspension arms must be equal size left and right
Rear Suspension arms must be equal size left and right
Adjustable Rear Suspension arms are allowed.
Battery must be mounted on the centerline of the vehicle. Can be either designed front to back or sideways across the chassis but center of battery must be on centerline of chassis.

BODY RULES: Body Length, Width, and Height: 
13" max body width 28" max length (bumper to spoiler) 7.5" max body height measured from bottom of chassis

Center deck:
1" max deck rake.
1" max center deck taper (widest point of the deck can only be 1" wider than the narrowest point of deck)

Spoiler:
1.5" max spoiler height
Spoiler end plate max 2” high off center deck and 3.25” long

Roof:
0.5" max roof rake measured from deck
Maximum Roof width 9"
Maximum Roof length 9"
No roof spoilers, a bend down at the trailing edge of the roof is allowed for strength
Roof side rails allowed but must have a scale appearance and be on both the left and right sides of the roof.
1/4" bend down at the leading edge of the roof allowed.

Roll cage/Roof Supports:
Roll cage/roof supports must be cut or formed to resemble a roll cage.  No solid panel roof supports. Window netting and rock guards are allowed.

Nose:
Nose sides can extend a max of 1/4” above the plane of the nose panel
Nose sides can extend a max of 1/4” above the plane of the hood panel
Nose cannot extend past the inner edges of the front wheels
Main nose panel must be a flat plane.  No concave or scooped noses allowed.
Rear wheel wells must be cut out to expose most of the rear wheel
Left and right windows and sails can be open as long as both sides are the same.


OPEN MIDWEST MODIFIED:

Battery: 2 Cell Hard Case Lipos. Do Not Need To Be Roar Approved.
Motor And ESC: Open Motor Open ESC. any ESC in any mode
Tires: Open Tires but must be a 1/10th scale buggy based wheel and tire. No Gyros Or Driving Assist Devices Allowed.


OPEN SC LATE MODEL:

Tire Rules: Open tires but must be a SC based wheel and tire 
Battery: 2 Cell Hard Case Lipos. Do not need to be ROAR approved. 
Motor And ESC: Open Motor, Open ESC No Gyros Or Driving Assist Devices Allowed. Must be a SC Based Chassis

Carbon fiber chassis allowed. Must meet the following specs.
All suspension components, transmission, front and rear bulkheads must be on center line of the vehicle.
All larger volume OEM Chassis are legal IE “AE,TLR,Traxxas”
Aftermarket or specifically built chassis and kits must conform to the following specifications.
Maximum Chassis width 7”
Minimum Chassis width 5 1/8”
Maximum left side of chassis can be from centerline is 3 1/2”
Right side must be a minimum of  2.25” from centerline to outside edge of chassis.
Minimum wheelbase 12.5”
Maximum wheelbase 13.5”
Shock bodies min length 1”
Front Track width Min  11.42”   *Updated To Meet Roar Specs*
Front track width Max 11.65”     *Updated To Meet Roar Specs*
Front Suspension arms must be equal size left and right
Rear Suspension arms must be equal size left and right
Adjustable Rear Suspension arms are allowed.
Battery must be mounted on the centerline of the vehicle. Can be either designed front to back or sideways across the chassis but center of battery must be on centerline of chassis.

Body Rules For Open SC Late Model:
Must be a late model body Must Cover the wheels Can not Be a Home made body No side-dams Max 2 inch spoiler.
Battery: 2 Cell Hard Case Lipos. Do not need to be ROAR approved.
Motor and ESC:  Any Modified Motor, Any ESC is allowed in any mode.
Tires:  Open Tires but must be 1/10th scale buggy wheel and tires, NO 4wd buggy wheel and tires. 
No gyro or driving device allowed in any class.


13.5 HOBBYWING STOCK SPRINT:

Battery: Cell Hard Case Lipos. Must be ROAR approved and charged to the max of 8.44V.
Motor and ESC:
Must be a Hobbywing Justock G2.1 and newer.
Must be a Hobbywing Justock ESC XR10 60A
TIRES:  Open Tires but must be 1/10th scale buggy wheel and tires no 4wd buggy wheel and tires. 
No gyro or driving device allowed in any class.


OPEN LATE MODEL:

Motor and ESC: Any Modified Motor Rules Apply, Any ESC is allowed in any mode.
Battery: 2 Cell Hard Case Lipos. Do not need to be ROAR approved.
Tires:  Open Tires but must be 1/10th scale buggy wheel and tires NO 4wd buggy wheel and tires. 
No gyro or driving devices allowed in any class.


1/8TH SCALE LATE MODEL:

Body: Must Cover the wheels and must be a late model body. No side dams.
Battery: 4 cell lipo MAX.
Tires: Open Tires but must be 1/8th based buggy rubber wheel and tire.


13.5 BUGGY STREET STOCK:

Chassis Rules:
Any 1/10th scale buggy. Must be a factory based off-road buggy.
Approved manufacturers are Associated, Losi, Traxxas, Kyosho, Durango, Team C, Xray, Yokomo, Hobao H2.
Chassis must remain stock, no aftermarket/non-oem upgrades except RPM Brand parts desinged for the chassis.
OEM Option parts sold by these companies desiged for their cars are allowed.
Big Bore and threaded OEM Shocks are allowed.

Springs: They can be from any manufacturer in the RC Industry not only OEM.
Rear wheel drive only.
Mid or rear motor allowed.
Adjustable rear A arms are NOT allowed.

Tires: Open Tires But must be 1/10th scale buggy wheel and tires NO 4wd buggy wheel and tires.
Motor: 13.5 Roar approved motor and ESC must be on blinky
Battery:  2 Cell Hard Case Lipos. Do not need to be ROAR approved. 8.44 max voltage at Tech Inspection.
Body: Must be closed windowed. Max 1” Spoiler measured from the deck. No End caps allowed. Body must include rear bumper. No gyros or driving assist devices allowed.


13.5 WINGLESS SPRINT:

Battery: 2 Cell Hard Case Lipos. Do not need to be ROAR approved.
Motor and ESC:  13.5 Roar Approved Motor.  Any ESC is allowed but it has to be in blinky.
Tires:  Open Tires but must be 1/10th scale buggy wheel and tires no 4wd buggy wheel and tires. 
No gyro or driving device allowed in any class.


TRAXXAS STREET STOCK:

Must have the stock chassis or a Traxxas LCG chassis only.
RPM and aluminum parts that are made only for the 2WD slash are allowed.
Must be a street stock body no homemade bodies.
Tires allowed are SC Bandito, robbers, or the stock slash tires that come with the vehicle.
Also must have the right offset on the car.
Must be a 2s battery at a max voltage of 8.44V.
Steering servo and your own transmitter are allowed but you must run the stock 12t titan motor and the xl-5 esc.


OVAL TRUCK:

Must be a SCT based chassis.
2wd or 4wd trucks are allowed.
2s Battery max
Must be an SC body that covers all 4 wheels
Tires must be an SC based tire and wheel.


NOVICE:

Must be a 1/10th scale vehicle
2s Battery max

FORMAT

2022 Race Format

Friday May 27 

Practice Noon-5  

One heat one main club race 


Saturday May 28 

Two Hour Open Practice 

Two 4 minute qualifiers 

Rocket Round Qualifying 

One 4 minute main event 

Two Bumps


RESULTS

2019 Spring Dirt Oval Nationals

Memorial weekend is always a special weekend where we remember fallen loved ones who gave their lives protecting our freedom and our country. However, the extended weekend also makes for a great racing weekend as most get to enjoy an extra day to rest or play. For Hobbyplex, JConcepts, and die-hard oval fans, it was the inaugural JConcepts Spring Dirt Oval Nationals that made the weekend just that much more special.

Read More


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