In order to ensure equality between participants, dB Drag Racing makes every effort to ensure that competition rules are transparent, fair and unambiguous. When an installation, modification, substitution or a particular application is not provided for in this rulebook, the head judge is responsible for making a determination or understanding of the incident in accordance to the line of judgment adopted by dB Drag Racing. As a competitor, it is your responsibility to understand the rules contained in this rulebook and to obey all decisions made by the head judge.
Participation in this competition is voluntary. At any time before participating, competitors may wave their right to compete, and have their registration fee refunded. Participation, therefore, is to be considered as an agreement, understanding and acceptance of the rules stipulated herein and of any decisions rendered by the head judge.
dB Drag Racing Pancadão, event organizers, sponsors, officials, agents and employees are not liable for any loss or damage claimed by the competitor, including loss of sponsorship income or any other form of financial support related to any claim, disqualification, or other administrative action that includes, but not limited to, equipment failure, adjustments in classification placement as a result of corrections of mathematical errors or omissions of tallies that may occur during or after the event.
Section 0 - Introduction
The safety of competitors, judges and spectators at an event is of the utmost importance. With regards to safety, the competitor assumes full responsibility as the operator of the competition vehicle and its sound system. Competitors should clearly understand the following issues before participating in a customized vehicle and automotive sound event.
Operation of a motor vehicle is inherently dangerous. You must ensure that the operation of your vehicle will not endanger yourself or those around you. Follow all local laws and make sure that the pathway is clear before moving your vehicle. Although you may at times receive assistance or guidance in moving your vehicle, the responsibility for safety ultimately lies with the competitor.
Sound systems are capable of producing high sound pressure levels. Exposure to high sound pressure levels can cause hearing damage. NEVER operate your sound system in such a way as to expose yourself or others to high sound pressure levels. In addition, listening to your sound system at loud volumes while driving may prevent you from hearing emergency vehicles and police sirens, vehicle horns, etc. Always operate the sound system in accordance with local laws and in a manner that does not interfere with the safe operation of your vehicle. This includes making adjustments to your sound system while driving.
Custom sound installations can affect the safety and/or integrity of your vehicle. It is the competitor's responsibility to validate that their sound installation is safe. Special care must be taken with regards to electrical wiring. All electrical power cords should have a fuse system at the battery to minimize the risk of fire. Sound components, such as speakers, amplifiers, enclosures, etc., must be attached to the vehicle in such a way as to prevent them from causing injury or damage in the event of an accident. Vehicles that have been structurally modified to accommodate the sound system or vehicles that exceed the maximum gross weight limits as detailed in the vehicle's instruction manual should not be driven on public streets or highways.
Structurally modified vehicles must undergo a vehicle inspection to ascertain their safety.
dB Drag Racing Pancadão is not qualified to determine the safety and/or legality of a competition vehicle in relation to the laws. This responsibility lies with the competitor. dB Drag Racing Pancadão can not be held responsible for any accidents, damages or injuries that occur in an event. By participating in an event, the competitor agrees to assume full responsibility for his actions and any accidents, damages or injuries that may occur. dB Drag Racing Pancadão recommends competitors operate their vehicles and sound systems in a manner consistent with local laws. Flagrant disregard for safety will result in disqualification and subsequent expulsion of the event.
Use of image
Competitors accept the right of dB Drag Racing Pancadão to use a competitor's name, voice and image, along with any biographical or any other relative information about the competitor related to the event, for the purposes of advertising, promoting and/or any other purpose including commercials, at anytime that dB Drag Racing Pancadão deems it desirable, renouncing any and all other claims.
The microphone position shall be set at 1 meter away from the very last endpoint of the vehicle. The microphone shall be set at a minimum height of 45 cm from the ground. There are no limits in regards to a maximum height.
The microphone can not be set on top of, next to or on a cover, even while respecting the 45 cm minimum. The span of 1 meter shall remain free of any objects having only the ground below the microphone. The size of the cover will be added to the 1 meter in order to obtain the regulated span of free space.
Section 1-1 dB Drag Rules
Competitors may use the program material of their choice while competing.
The tone that is played can originate from any type of source unit that has been specifically designed to play music. This can include cassette players, CD players and readers, DVD players, camcorders, VCR's and VCP's, MP3 units, AM/FM/Satellite radio tuners, smartphones, tablets, etc.
Wired and wireless connections between the source unit and the sound system are permitted. This includes RCA cables, fiber optic cables, Bluetooth, WiFi, etc.
All competitors must play the same song. This song will be provided by the judge. (download link)
Competitors must present the dB Drag Racing Vol 20 Competition CD to prove membership. Competitors must present their membership card to the judge to prove eligibility. (The CD is not used for Pancadão competition, only to prove membership)
Section 1-2 dB Drag Rules
Adjustments to the sound system may be made while the vehicle is being measured, as long as no other applicable rule is breached during the adjustment process.
Section 1-3 dB Drag Rules
The vehicle engine may be running on the runway provided that the following conditions apply:
Operation of the vehicle or sound system must not endanger the judge, competitor, spectators or any real or personal property on the premises.
The vehicle parking brake must be engaged.
Wheels must be chocked.
The hood must be closed.
The maximum engine idle speed must not exceed 2000 RPM.
Section 1-3 dB Drag Rules
When the SPL measurement process begins, competitors will have up to 30 seconds to reach their highest sound pressure level (SPL). The SPL measuring equipment will record and save the highest score of each competitor during this 30 second run.
Section 2-4 dB Drag Rules
Each competition vehicle can compete in one, and only one class in each dB Drag Racing event. (Section 2-4 dB Drag Rules)
Competitors can enter the same vehicle in more than one class in a dB Drag Racing event. The speaker box should have the number of speakers according to the class chosen.
The sound system during evaluation must play music without burning out the equipment. The equipment cannot be additionally installed solely for the competition, they must be securely installed in the vehicle.
The speaker box, should be positioned up to the luggage trunk cover or to the truck's tailgate, and may extend beyond the vehicle by up to 10 cm. When the speaker box is inside the vehicle, the trunk lid seal or the furthest endpoint of the lid will be used to count a meter of distance up to the sensor.
The trunk lid shall remain fully open, up to its maximum point based on original factory vehicles. Pickups: The speaker box must remain in the fixed measurement position without moving. Speaker boxes can be affixed with straps or screws.
Speaker boxes with vent box larger than 15 cm cannot be used in this category, in the event that speaker box for each speaker has more than 1 duct, the sum of each cannot exceed 15 cm.
The number of speakers and speaker boxes should be exact to the chosen category. (Section 2-3 dB Drag Rules)
Speaker boxes must not be tilted and should remain in the normal position, in line with the incline of the vehicle.
The vehicle must have the front and rear suspension at the same height. The weight of the equipment may not lower the rear suspension by more than 5 cm when the original suspension is in use.
The use of wood, banners or other any other material between the bumper of the vehicle and the ground is prohibited. The intention is to remove any physical barriers below the speaker box, which could function as a ramp or wave deflector. Side baffles in boxes are not allowed. No physical barrier that functions as a wall may be set behind the speaker box.
Passenger vehicles must have functioning front and rear seats.
An audio processor may be used, but if there is any doubt in regards to its use for distorting, generating of frequencies or any regulation that changes the intelligibility of the music, its use will not be permitted. The judge may request that a measurement be repeated as often as necessary to remove any doubt. The judge will determine which measurement will be valid after verifying if there has been any change. If there is a frequency change through use of a processor and the problem is corrected, the lowest mark will be validated.
The amplifier system must be 12 volts.
There is no limit on the size, quantity or type of batteries.
The cd player can be controlled by remote control, long distance control or smartphone or off-vehicle application.
The frequency limit is 300 Hz.
15. When multiple measurement systems are available they can be used for elimination rounds, two vehicles playing simultaneously as in the SPL contests, eliminating the competitor with the lowest result.