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Abas do tejadilho, Feminino, Abas do tejadilho
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Roof Flaps, Male, Roofs Flaps
def. These flaps are sections at the rear of a race vehicle's roof that are designed to activate, or flip up, if the air pressure flowing across them decreases. In the case of a vehicle turning backwards, the tendency for an uninterrupted flow of air is to create lift. The roof flaps are designed to disrupt that airflow in attempt to keep the vehicle on the ground.
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Aileron, Masculino, Ailerones
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Spoiler, Male, Spoilers
def. (Also referred to as a "blade.") Is a strip of aluminum that stretches across the width of a race vehicle's rear decklid. It is designed to create downforce on the rear of the vehicle, thereby increasing traction. However, the tradeoff, again, is that more downforce equals more aerodynamic drag, so teams attempt, particularly on qualifying runs, to lay the spoiler at as low an angle as possible to "free up" their vehicles for more straightaway speed.
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Arrasto Aerodinâmico, Masculino, Arrastos Aerodinâmicos
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Aerodynamic Drag, Male, Aerodynamic Drags
def. A number that is a coefficient of several factors that indicates how well a race vehicle will travel through the air and how much resistance it offers. Crewmen work to get the best "drag horsepower" rating they can, determining how much horsepower it will take to move a vehicle through the air at a certain mile-per-hour rate. At faster speedways teams strive to get the lowest drag number possible for higher straightaway speeds.
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Bloqueio, Masculino, Bloqueios
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Push, Male, Pushes
def. (Also referred to as "tight" or "understeer.") "Push" is a condition that occurs when the front tires of a vehicle will not turn crisply in a corner. When this condition occurs, the driver must get out of the throttle until the front tires grip the race track again.
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Buschwacker, Masculino, Buschwackers
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Buschwhacker, Male, Buschwhackers
def. Nascar drivers who are regulars in the Sprint Cup Series but who also compete in races in the Nationwide Series. The colloquialism originated when the lower-tier series was called the Busch Series ("Buschwhacker").
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Cambaleio, Masculino, Cambaleios
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Stagger, Male, Staggers
def. Is a concept that has largely been eliminated with the use of radial tires. It refers to the difference in tire circumference between the left- and right-side tires on the vehicle. Typically, the left-side tires would be a smaller circumference than the right-side tires to "help" the vehicle make left-hand turns.
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Camber, Masculino, Camberes
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Camber, Male, Cambers
def. Addresses the angle at which a tire makes contact with the track surface. "Positive camber" indicates the angle of the tire is tilted away from the vehicle's centerline while "negative camber" indicates the tire is tilted toward the centerline. A typical oval track setup would have positive camber in the left front and negative camber in the right front to help the vehicle make left-hand turns.
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Derrapagem técnica, Feminino, Derrapagens técnicas
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Loose, Male, Looses
def. (Also referred to as "free" or "oversteer.") A condition created when the back end of the vehicle wants to overtake the front end when it is either entering or exiting a turn. In qualifying mode teams walk a fine line creating a setup that "frees the vehicle up" as much as possible without causing the driver to lose control.
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Detritos, Masculino, Detritos
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Marbles, Male, Marbles
def. (Also referred to as "loose stuff.") Bits of rubber that have been shaved off tires and dirt and gravel blown to the outside of a corner by the wind created by passing vehicles comprise the "marbles" that are often blamed by drivers for causing them to lose control.
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Força de Fricção, Feminino, Forças de Fricção
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Downforce, Male, Downforces
def. The air pressure traveling over the surfaces of a race vehicle creates "downforce" or weight on that area. In order to increase corner speeds teams strive to create downforce that increases tire grip. The tradeoff for increased corner speeds derived from greater downforce is increased drag that slows straightaway speeds.
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Prato de Restrição, Masculino, Pratos de Restrição
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Restrictor Plate, Male, Restrictor Plates
def. An aluminum plate that is placed between the base of the carburetor and the engine's intake manifold with four holes drilled in it. The plate is designed to reduce the flow of air and fuel into the engine's combustion chamber, thereby decreasing horsepower and speed.
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Pressão de Ar, Feminino, Pressões de Ar
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Air Pressure, Male, Air Pressures
def. With the advent of radial tires with stiffer sidewalls, changing air pressure in the tires is used as another setup tool that is akin to adjusting spring rates in the vehicle's suspension. An increase in air pressure raises the "spring rate" in the tire itself and changes the vehicle's handling characteristics. If his race vehicle was "tight" coming off a corner, a driver might request a slight air pressure increase in the right rear tire to "loosen it up."
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Puxada de Ar, Masculino, Puxadas de Ar
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Aero Push, Male, Aero Pushes
def. When following another vehicle closely, the airflow off the lead vehicle does not travel across the following one(s) in a normal manner. Therefore, downforce on the front of the trailing vehicle(s) is decreased and it does not turn in the corners as well, resulting in an "aero push." This condition is more apparent on the exit of the turns.
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Sortudo, Masculino, Sortudos
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Lucky Dog, Male, Lucky Dogs
def. The "Lucky dog" rule known as the Free Pass or officially the Beneficiary Rule is a NASCAR rule. The rule allows the driver of the next lapped car or truck behind the leader to gain back a lap during a caution. The driver is called to move to the end of the longest line of the cars at the end of that caution period. This rule was instituted to prevent drivers from racing back to the start/finish line when a caution was called.
The rule applies regardless of the number of laps a car is behind the leader.
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