【 1 】Machines
1. Usable Machine Types
Only Mini 4WD REV, Mini 4WD PRO, Racing Mini 4WD, Super Mini 4WD, Fully-Cowled Mini 4WD, Aero Mini 4WD, Mighty Mini 4WD, R/C Mini 4WD, and Truckin' Mini 4WD machines are permitted. Further restrictions on machine types may be possible depending on the race event or race class.
2. Machine Assembly
All machines must be four-wheel drive. Modifications that result in rear-wheel or front-wheel drive are prohibited. Bodies should have stickers applied or be painted, and must be securely attached to the chassis. Home-made bodies are prohibited. All machines must go through car inspection and machines that do not pass inspectioin cannot participate in the race.
3. Machine Measuring System
All machines will be subject to the same measuring system as shown below.
Maximum Car Width: Under 105mm
Overall Car Height: Under 70mm
Overall Car Length: Under 165mm
Minimum Ground Clearance: At least 1mm
Minimum Car Weight (including batteries and motor): At least 90g
Front and Rear Tires: Diameter: 22-35mm, Width: 8-26mm (Note that tires must be attached.)
Rollers: Maximum of 6 installations total (double rollers count as 1 installation. Stabilizer poles and mass dampers do not count at all)
Mass Dampers: Mass damper may not extend from the sides beyond the line formed by the guide roller poles.
Parts that combine a guide roller with a mass damper will count as 1 roller installation. ※Effective January 2009
※The shaded region indicates the area in which non-roller mass dampers must fit within.
4. Motor
Machines may use the kit-included normal motor, Rev-Tuned Motor, Torque-Tuned Motor, Atomic-Tuned Motor, Sprint-Dash Motor, Power-Dash Motor, Hyper-Dash 2 Motor, or Hyper Mini Motor. Mini 4WD PRO machines may only use the kit-included normal motor or motors designed for use with the Mini 4WD PRO series.
Depending on the race event, other Tamiya motors may be permitted.
For speed-limited race events or classes, if your speed exceeds the allowed limit, even the above motors may not be installed.
Disassembling the motor to change the number of coils and other such illegal modifications are prohibited.
If there are indications that the motor cap has been detached, it will be judged as being illegally modified.
5. Batteries ※Revised in January 2011.
Only Tamiya-branded R6/AA/UM3 batteries are permitted. If the battery appears to be damaged in any way, they will not be accepted for safety reasons. Please note that some events may have different rules regarding which types or brands of batteries can be used.
6. Modifications
Please follow the guidelines below when modifying your car. Also note that for modifications not listed, race officials will have the final absolute authority to grant or deny their use.
Chassis modifications are limited to cutting away plastic material or cutting holes out of the stock chassis. Homemade chassis and homemade parts are prohibited.
Parts used for modification are limited to Tamiya Mini 4WD, R/C Mini 4WD, and Dangun Racer parts only.
Part modifications are limited to cutting away plastic material or making holes in the stock part.
Gear modifications are limited to making holes or shaving away material to reduce weight and installing ball bearings. All running gears must be installed according to the set gear ratios.
Only kit-included battery terminals or Grade-Up Part battery terminals, installed according to the instruction manuals, may be used. Soldering or double-plated terminals are prohibited.
Modifications that cause physical harm to the track, cause injury to any person, or release grease and/or other substances onto the track are all prohibited.
Modifications to the tire's shape are allowed if they comply with the Car Measuring System outlined above. However, changing the material properties of the tire surface (including, but not limited to, applying glue or other substances to the tire surface) are prohibited.
【 2 】 Race Courses
For courses which satisfy the below specifications and are sanctioned by Tamiya, times recorded during races will be officially recognized. All times recorded on original courses that do not meet these requirements will be considered unofficial.
Individual Lane Width: 115mm (measured on a straight section)
Course Wall Height: 50mm (measured from road surface)
Adjusting the height and lane width of lane change sections, bank turn sections, etc. for smoother racing operations is permitted.
【 3 】 For Competitions at Official Race Courses
The start of the race will be indicated by a signal from a Tamiya race official or a starting signal system. Racers will switch on their cars, hold them in the air with one hand, and drop them vertically into their assigned lane at the start signal. Throwing or pushing the car forward is prohibited.
A racer will immediately retire from a race if their car leaves the track, flips over, jumps into another lane, or if their car's body detaches during the race.
If race officials determine that a racer's car is blocking the progress of faster machines, the racer will be required to retire.
A car's race is completed when it reaches the finish line.
Qualifying and Final positions are determined by either the race finishing order or Time Attack time.
【 4 】 Car Inspection
All racers must have their car inspected by race officials before the race. If any part of the car is determined to be against race regulations, the racer must make the necessary changes in order to participate in the race.
From the time the car passes the car inspection to when the race begins, the car's settings must not be changed and no modifications can be made.
In addition to the pre-race car inspection, other car inspections may occur at any time during the race day at the race official's discretion. If the car is found to be in violation of the race regulations at any of these inspections, the racer's race results up to that point will be disqualified and the racer must make necessary changes in order to participate in subsequent races.
If a machine does not pass car inspection, and cannot be made race-legal, the participant can still take part in the Qualifying rounds for their own benefit, but their times will not be recorded.
【 5 】 Disqualification
If any of the following situations occur, race officials will, at their discretion, have absolute authority to disqualify any racer. Please take care to remember the common manners for a Mini 4WD race to avoid any problems.
A racer's car is determined to have modifications that will cause physical harm to other racers, other cars, or the race track.
A racer's car is determined to have modifications that are designed to deliberately obstruct other cars.
A racer deliberately puts grease or other substances onto the track to affect track surface conditions.
A racer is determined to have modified their car after it had passed the car inspection.
A racer is determined to deliberately touch the track or cars to impede other racers' race progress.
A racer does not follow the instructions of race officials or otherwise impedes the operations of the race track.
A racer has a false start, or is determined to have thrown or pushed their cars forward at the start of a race.
A racer is determined to act against the spirit of fair play or cause distress for other participants.
【 6 】 Race Operations
Participants may raise objections to the race officials. However, these objections must be made before the next race begins.
Race officials reserve the right to announce the use of special regulations at any time during the race.
【 7 】 Participant Restrictions
Please be aware that some races have age limitations, so it may be that some participants cannot take part in certain classes or races.
Except for endurance races, it is against regulations to have more than 2 racers using the same car.
Jun 19 2015, 06:36 PM
*hides car*
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