Tea's Hobby Shop, Rochester, MN

House and Class Rules

Here at Tea’s Speedway, our goal is to preserve the camaraderie of the racers and create an environment in which families can be together in fellowship and fun while enjoying the thrills of structured, competitive RC Racing.  Below is a list of general guidelines for our track and specific rules for classes.

Indoor Oval

General Rules:
- No outside food our beverage allowed.
- No roll-over antennas
- Bodies must be securely fastened to the vehicle.
- Body must be on the vehicle to have laps counted.
- All cars/trucks must have numbers on them. These are scale race cars, so let’s make them look like race cars.
- Foam tires must have a 1/8” minimum sidewall. Foam tires with excessive chunks missing will not be allowed. If you are uncertain of whether or not your tires will pass, it is your responsibility to ask the race director before you race.
- All cars/trucks must have 4 tires/wheels to race. If one falls off or breaks off of your car/truck, then you must pull it off of the track.
- If you miss the start of the race, you cannot join that race. Your vehicle must be on the track and ready to race when the race starts.
- Make sure that the car/truck that you are driving meets the rules for the class you are racing in. We will be randomly teching cars on race days. Failing to follow the rules will disqualify you for that day in that class.
- If a car/truck does not fit the rules for the class that it is raced in, that driver gets 0 points for that race (this will not be used as a throw-out).

Racing Rules:

- Frequency clips MUST be used when you turn your transmitter on. Clips MUST be returned when you have finished. Racers with 2.4 GHz radios must display an ORANGE clip from your radio. These ORANGE clips will be provided and it is your responsibility to have one on your radio at all times.
- You must have a pracitce clip on you radio any time you are on the track. If you do not have a practice clip you should not be on the track. Practice clips must be returned as soon as you pull your car off the track even if you are making minor repairs or adjustments to insure everyone gets track time.
- Be ready to race. All racers must be ready to race when the race before theirs finishes. This does not mean that you start to get ready then. It means that when the race before yours finishes, you should be at the track, have the correct transponder in your car, and be ready to race. There will be 90 seconds between races.
- NO reverse allowed. If you have reverse, do not use it or you will be docked a lap.
- Respect others. This is a family atmosphere. Please, refrain from using inappropriate language. Remember that we are here to have fun.
- Once your race has ended, turn off your radio & car, remove the transponder & put it back in the charger, remove the frequency clip from your radio & return it to it’s home on the board, set your car & radio on a shelf or in tech, and get ready to marshal the next race. Please, do not return to the pit area until after you have marshaled.
- Cars/Trucks must not dig up or damage the racing surface.

- All drivers must turn marshal. If you are unable to marshal the next race it is your responsibility to find a replacement for that race. Marshals pay attention and be ready to move. Watch for other cars as you enter the track. Marshals cannot work on cars. Marshals cannot throw cars across the track to be fixed. Remember, marshal like you want to be marshaled.

-Absolutely no motor freezing, precooling, lowering motor temp ect.  Motor temp will be checked before the start of the race and will not be allowed to run if more then 10°F  cooler then room temp or control motor.

-Unsportsmanlike driving (i.e. intentional hitting other cars, short coursing, and corner cutting) is not allowed. Any driver who deliberately takes out another driver and/or threatens to take out another driver will be disqualified.
-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.
-Final decisions regarding legality are up to the race directors.
-Rules are subject to change.

**At Tea’s we offer several classes that will accommodate skill levels for all racers.  It is up to racers to compete in classes they feel are appropriate for their own skill level.  We do offer more classes then listed below.  The below classes are the main classes racers eventually settle into for competition.  Other classes such as Novice, JR Late Model, B Mod, Break Out or Sportsman versions are run from time to time and can be a great place to develop skills.**

Rules for all Late Model, Dirt Modified and Sprint Car Classes

General: For turn marshal safety all cars must have a front bumper that is made of a shock absorbing material e.g. nylon, delrin, plastic, kydex etc. Front bumpers must be mounted in such a way that they will contact an object prior to any other portion of the car in a front impact. All cars must have 4-wheel independent suspension, single speed transmissions only. No Gyros of any kind are allowed. All power, radio equipment and weights must be in a secured and fixed position and not moveable during a race.

All  Classes: All entries must be 2wd and rear wheel drive only. For turn marshal safety all cars must have a front bumper that is made of a shock absorbing material e.g. nylon, delrin, plastic, kydex etc. Front bumpers must be mounted in such a way that they will contact an object prior to any other portion of the car in a front impact. All cars must have 4-wheel independent suspension. No straight axle cars allowed, single speed transmissions only. All EDM bodies, sprint car bodies and cages must resemble contemporary full scale cars racing in “World of Outlaws” and “DIRT” sanctioned events. All corners of bodies and wings must be rounded for safety. No silicone or rubber capped tires allowed.

  • Wheelbase: 9.500” min, 11.500? max
  • Maximum width: 10.000” (foam tires)

Foam Tires only, a SPEC tire rule may be implemented to a specific class. Any tire additives that are used must be wiped clean from the tires before any races or practice sessions.

  • Foam Tires:
    Max wheel diameter: 2.0”
    Front tire and wheel width: Max 1.1”
    Rear tire and wheel width: Max 1.5”, Min 1.4″
  • BSR Spec XX Pink w\colored band starting in 2013 and forward.

Race Format:

Format will be on all points series days.

-Round 1 will be 4 min heat for best lap and time. Resort for round 2

-Round 2 will be 4 min heat for best lap and time.

-Mains will be set using single best run of the two rounds lap and time.

-Mains as normal.

The only bodies legal for the Late Model class are those that have been approved by DirtOval.com and are listed on the DirtOval.com Aprroved Late Model body list. Any manufacturer who would like to have a body approved may contact DirtOval.com for approval specifications and instructions. Molded portion of body can be no longer than 22”. Approved body lists will be amended on APRIL 1st and OCTOBER 1st of each year.

Late Model bodies may have openings for cylinder head, fuel tank access, glow plug, engine tuning, and exhaust outlets only. An under body support may be added to brace each rear quarter panel, but must hold it in stock position, can not be flared out. No additional wings, flaps, spoilers, wickers, vents or doohickeys will be allowed. Body may not be altered in any way from it’s stock configuration ie: shortened, lengthened, narrowed, flared fenders etc. Front and rear windows may be removed at trim lines but a flat lexan or similar material deck must be added in cockpit area. Bodies with add on roofs may leave front and rear windows in or out but roofs must be mounted in stock position. All four wheel wells must be cut out to appropriate scale dimensions.

  • Rear Spoiler: maximum chord from body deck including any wickerbills:
    2.00″ for Foam Tire
    2.50″ for Rubber Tire
  • Rear Spoiler Cap: See Drawing
  • Maximum rear deck height from bottom of chassis is 4.0″

DirtOval.com Approved Late Model Body List : Updated 9-6-17

  • Custom Works #9012 Eldora Late Model (10.0″)
  • Custom Works #9015 Springfield Late Model (10.0″)
  • Custom Works #9016 Paducah 2 Late Model (10.0″)
  • Custom Works #9070 Keystone Late Model (9.0″)
  • Custom Works #9071 Buckeye Late Model (9.5″)
  • Custom Works #9072 Mountaineer Late Model (10.0″)
  • McAllister #207 Tulsa Late Model
  • McAllister #250 Vegas Late Model
  • McAllister #252 Winchester Late Model
  • McAllsiter #237 Bakersfield Late Model
  • BMS Racing #P103 Shadow
  • Factory Works #7353 Rocket Late Model
  • Factory Works #7357 Concord Late Model
  • C&M Bodies #2010 Volunteer Late Model
  • C&M Bodies #2010-003 Nightmare Late Model
  • C&M Bodies #2011-001 Volunteer 10″
  • C&M Bodies #2011-002 Nightmare HD 9.5″
  • Stalker Bodies #009 Sniper 9 Late Model
  • Stalker Bodies #010 Sniper Late Model
  • Stalker Bodies #011 Specter 9.5
  • Stalker Bodies #012 Specter 10
  • Stalker Bodies Specter 9.0
  • Stalker Bodies Prowler 10
  • Protoform #1234-21 Cyclone 9.5 Late Model
  • Protoform #1235-21 Cyclone 10.0 Late Model
  • Protoform #1238-30 Nor’easter Late Model

13.5 Late Model

Foam tire only, DODC spec’s

ROAR 13.5 Brushless motor only

ROAR spec non timing ESC and mode

Sprint Cars
General – Maximum Overall Length: 18.000″. Maximum Chassis width: 4.025″

Cage – Sprint cars must have a scale appearing contemporary cage made out of rounded stock. The cage must be symmetrical 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. 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 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 (left side of nitro sprint is optional due to clearance needed for nitro exhaust).. A scale appearing rear hoop style bumper must be used. Bumpers and nerf bars must be made of a shock absorbing material.

Tail tank – A traditional 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 car in “engine area” (left side of nitro sprint is optional due to clearance needed for nitro exhaust).

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 minimum of 3/4″ high by 2.5″ long openings on both sides of cage in 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. 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. The hood must be symmetrical from left to right. The hood must be tall enough and wide enough to allow room for a scale engine intake and air cleaners (no unrealistically low or flat hoods). Minimum vertical gap from top of hood to bottom of front cage crossbar: .750″. The 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 3/8″ 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.

***Note that the hood and nose piece can be one piece or multiple pieces for the purpose of easy access to electronics and suspension but are defined as above for purposes of aero rules.

Front wing/mounts
– For front wing dimensions see appropriate wing drawing pdf. The 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 – For top wing dimensions see appropriate wing drawing pdf. 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 material. All corners and edges must be rounded and free of 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.

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.

The 6×6″ wing will be the standard Sprint Car wing size. Race organizers and series directors may at their discretion allow the optional 7×7″ wing rule for races and series using buggy or rubber tires.

Top wings are mandatory and front wings are optional for all sprint classes. Race organizers may also choose to run wingless sprint classes at their discretion where top and front wings are not allowed.

6×6″ Foam Tire Wing: See Drawing

Top wing mount can not exceed the dimensions of the following template: SEE DRAWING

305 Sprint Car

BSR Foam Spec tire only. DODC spec’s

ROAR 17.5 Brushless motor only

ROAR spec non timing ESC and mode

Must run a 3 gear transmission

360 Sprint Car

BSR Foam Spec tire only, DODC spec’s

ROAR 13.5 Brushless motor only

ROAR spec non timing ESC and mode

410 Sprint Car

Foam tire only, DODC spec’s

Any Brushed or Brushless motor system

Dirt Modified (NEW STYLE)

Front bumper must be mounted flat and cannot be angled up to act as a wing. An additional front body panel is allowed on the front of the car but may not extend forward of the front bumper. Front and rear windows must be removed and any clear portion is included in max roof length dimension. Side windows must remain clear. No rear wheel cutouts are allowed on the horizontal plane of the inner. Right and Left rear wheel wells must be cut out to appropriate scale dimensions.

Dimensional specifications Drawing: EDM SPECIFICATIONS

•             Must have 2 side panel braces as specified in drawing that must hold side panels at 90 degrees to inner panel both staticly and during racing conditions.

Roof specifications Drawing: Roof Specifications

•             Must have rear roof spoiler Min 1/8″ Max 1/4″ bend DOWN between 45 and 90 degrees

Side panels must be no larger than one of the following three templates:

Bicknell Template Teo Template Troyer Template FULLSIZE TEMPLATES

  • All fabricated body panels ie: Doors, Windows, Roof, and Inner Panel must be made from minimum .020″ thick lexan/polycarbonate material (.020″ measurment does not include any decal or wrap)
  • All Vacuum formed body panels must be pulled from minimum .030″ thick lexan/polycarbonate material. Separate hoods and front body panels may be pulled from .020″ lexan/polycarbonate material.
  • Inner panel and spoiler can not extend beyond rear of side panels
  • Outer front edge of inner panel can not extend beyond the front of the door but may taper from that point forward of the door toward the hood at a point no more then 1.5″ forward of the door.
  • Inner panel must be flat (on 1 plane) from spoiler base to a point within 1.5″ from front of door.
  • Maximum length of complete car: 19.5″
  • Both sides of body must be at 90 Degrees to the rear of body and or spoiler
  • Door/side panel may have a 90 degree “BEND IN” max 3/8″ at bottom for strength
  • Maximum front bumper width: 5.0″
  • Front body panel max width: 4.0″
  • Front body panel max chord length: 3.00″
  • Max Side lip on front panel and Hood 1/4″
  • Rear spoiler: max chord is 3.0″ from body deck including any wickerbills
  • Left Side Panel must be inside a straight line drawn from the outside of both left side wheels/tires and outside of left side of chassis.
  • Bodies must have at least 1/3 of right rear tire exposed when viewed from front, top and rear of car.

Inner panel must have SCALE APPEARING hood that extends from at least the door leading edge to at least the leading edge of the roof. The following specifications are relative to the hood in the area defined in previous sentence.

  • Hood must be centered on inner panel
  • Hood Width: Minimum 2.5″
  • Minimum hood height for entire length is: .750″
  • Clearance between top of hood and leading edge of roof is min. 1.0″ and max 2.0″

13.5 Dirt Modified (EDM)

BSR Foam Spec tire only, DODC spec’s

ROAR 13.5 Brushless motor only

ROAR spec non timing ESC and Mode

Motors & Batteries all classes

  • Super Stock and Rookie Foam: Any Roar approved 27t brushed motor or Roar Approved 17.5 brushless motors will be allowed.  No additional batteries are allowed including those used to power receivers or cooling fans.
  • All 13.5 classes: All Roar Approved 13.5 brushless motors will be allowed.  No additional batteries are allowed including those used to power receivers or cooling fans.
  • 410 Sprint: All motor systems must meet ROAR Brushless specification with the exception of the MAMBA MAX system from Caslte Creations which will also be legal for modified. Sensored or sensorless speed controls are allowed in modified only.  No additional batteries are allowed including those used to power recievers or cooling fans.
  • Absolutely no motor freezing, precooling, lowering motor temp ect.  Motor temp will be checked before the start of the race and will not be allowed to run if more then 10°F  cooler then room temp or control motor.
  • Batteries all classes: Maximum of 6 sub-C rechargeable batteries at 1.2 V per cell max. or Only ROAR approved Lipo packs will be allowed for competition.
  • Battery voltage and Temp: All racers shall take every precaution to insure safe charging and discharging techniques with their batteries. This shall include but is not limited to, attentive monitoring of battery during charging.  While not required, we do recommend the use of a LiPo Sack to charge your batteries.  To insure safe charging methods are followed by all competitors, all batteries will be checked prior to each race to ensure battery voltage is a maximum of 8.44 volts or less. If the battery reads 8.45 or more you do not race. Battery temperature may also be checked with the following pre-race procedure. A control pack will be placed in the tech area for the purpose of monitoring the pack temperature. Checked batteries shall be no more than 70° F or 10° F above the temp of the control pack whichever is greater.  Heating of packs is not allowed, just don’t do it.

Weights (including transponder)
Sprint Car: minimum weight is 55oz.
Dirt Modified and Late Model: minimum weight is 53 oz.

13.5 Midwest Foam Tire Modified

Chassis specs:

Car width: 9.5″ max

Wheelbase: 11.75”-12.25”

Battery location: Right side of battery must be on centerline of car. Must run a conventional brick style battery.

Transmission: Molded 3 gear transmission case only. (No machined cases or Direct Drives). Motor plate must be mounted on the right side of transmission.

Arms: Arms must be non-adjustable molded plastic, composite and or machined plastic. Arms must be the same length from side to side. No offsetting of arms is allowed.

Hub Carriers: Only non-adjustable rear hub carriers are allowed and they must be zero degree hubs.

Rear Toe: Rear toe is only to be adjustable via toe blocks. Toe is limited from 0-3 degrees in. Toe out or split of any kind is not permitted.

Front Suspension Mounts: No Off Set Bulkheads or Off setting of suspension mounts. They must be equal distance apart from centerline of the chassis. Bulkheads and Suspension mounts may be as narrow or as wide as you want but car must maintain a max width of 9.5”.

Driveline: Steel Outdrives, Steel CVD kits only. No lightweight parts and no cut gears.

Chassis requirements: Chassis can be made from Fiberglass or Carbon Fiber. The max width of the chassis at any point is 5”. From center line no wider than 2.5” left or right of center line. Pockets/cutouts in the chassis to put machined weights ect in chassis is not allowed. Weights maybe be bolted to top side of chassis. No Tungsten, brass or Magnesium alloys allowed anywhere in chassis design or use of the chassis.

**A Cad file is available for designers that will index where the body posts should be to line up with the spec body’s**

Min Weight: 59oz (Any additional weight must added to top of chassis)

Max Weight: 64oz

Tires: BSR Spec foam tires. (Fronts: C1017S Rears: C1018S)

Electronic locations: Motor must be mounted in standard location. ESC and receiver must be mounted to the right side of the battery. Servo may be mounted anywhere on the front half of the chassis.

Body: Spec Bodies: Sippel Speed Shop’s Part #FT-MWM AFX Fab Part #F-01 From the bottom of the chassis, front of deck 3”min-3.5 max, rear deck 3.5”min-4”max. Deck must measure the same on both sides of car. Tilting the deck is not allowed.  Body must be centered on chassis, may not be cantered in anyway. From center of rear axle to rear quarter panel 5”min-5.5”max.  Rear Spoiler: maximum chord from body deck including any wickerbills .75”  An under body support may be used to brace each rear quarter panel, but must hold it in a vertical position, cannot be flared out.

Front bumper: Must use bumpers supplied with body kits.

Motor and ESC is up to track or series. They may choose to spec these or use ROAR approved equipment. Using at least a 13.5 motor is highly advised. This class is intended to promote good racing and not be wide open racing.

Super Stock

-2WD only cars, and you can not take a 4WD car and take out the front drive shafts.
-Motor: 550 12t Brushed, 540 27T ROAR Approved brushed motor or ROAR Approved Brushless 17.5 motors.

- ROAR spec non timing ESC and mode.
-Must be a 2WD off road buggy chassis. (Examples: Associated, Team Losi, Duratrax, Traxxas, HPI ect) No chassis modifications, chassis must be original design by the manufacture of that kit. No aftermarket upgrade chassis allowed such as Putnam, JRC, Custom Works, Hugger or similar, X Factory, Factory Works, Dyno Tech, Hurricane, basically no performance enhancing or purpose built kits/conversion allowed.  Modifications to mount body mounts/post or front bumper is allowed.
-Must run stock buggy length shocks and be mounted in stock mounting holes in shock tower and arms.  No shock limiters will be allowed.
-Must run stock buggy suspension arm mounts and stock buggy arms, use of adjustable arms are not allowed. (if you have to modify the arm mounts or chassis to make mounts work it is not allowed)
-No alum outdrives or drive shafts. Steel only
-Allowed tires: For the purpose of this class rubber tires must be used.  Off Road pattern style tires are not allowed.  They must be a street pattern.  The most common tires are the Custom Works Street Trac or Sticker tires.  They can be mounted on either the CW rims or buggy rims to fit application.
-Use of different rear hub carrier other then original or modification to original rear hub carrier for clearance on rim is allowed.
-Use of wheel spacers is allowed. You must be under the 10? width rule if using spacers.

-Battery must be mounted in the center of the chassis, no off setting of pack.

-Rear toe must be equal on both sides at all times.  Toe out or splitting toe is not allowed.

-Motor and transmission must be a rear mounted configuation, no mid motor chassis allowed.
-Use of a slipper eliminator is allowed, 1 speed only, 48 pitch spur and pinion gears only, must run an original style gear cover or have gears covered in a way to prevent fingers hitting the gears.
-Max width with out body is 10.

-Weight limit:  60oz or 3lbs 12oz

-Body’s for Super Stock updated 9-6-17

B125 Buick Regel SS

B134 Barracuda

B136 Boss Mustang

B264 Camaro

B268 Monte Carlo

B290 Dodge Charger

B292 59 Plymouth

B313 Nova 427

B306 Ol Smokey

B303 68 Fairlane Fastback

GeneralBody rules:

-Cannot remove or cut any of the widows.
-Trimming of the body for wheel clearance is allowed
-On the front and rear you may cut up to the bottom of the bumpers but not past the bumper or you can leave any addition material you would like as long as it does not hit the track. Putting extra holes in the front or rear is not allowed.
-Rear spoiler is allowed and restricted to the following dimensions. Max width 8”, Max height measured front deck 1” cord measurement including any wicker bills, NO end caps or bends allowed.

-Body must be centered on the chassis, no off setting the body.

This is a very unique class to our area and there are many rules for such a simple class.  This is a class that basically should be a 1/10 off road buggy with rubber tires and a Super Stock body.  Because this class has so many rules and possible interpretations that the race director may at any time update specs or wordage to protect the class’s integrity without notice.