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Slang term for the trunk lid of a race car.
- Browse Related Terms: Adhesion, Bear grease, Binders, Brake caliper, Deck lid, Donuts, Esses, Factory, Flat-out, Happy Hour, Head wrench, Pole Position, restart, Scuffs, Silly Season, Sponsor, Stick, Trading paint, Wrench
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The messed up air created by the lead car. It is generally harder to handle or steer a race car when it's in dirty air. Some race cars will be set up to run good in clean air when in the lead and some will run better in dirty air.
Aerodynamic term for the turbulent air currents caused by fast-moving cars that can cause a particular car to lose control.
- Browse Related Terms: Aerodynamics, Air Pressure, Dirty air, Downforce, Equalized, Neutral, Push, Round, Setup, Tight, Track bar, Wedge, Wedge, round of
All > Recreation > Sports > NASCAR
Slang term for black, circular dent-line marks on the side panels of stock cars, usually caused by rubbing against other cars at high speed.
- Browse Related Terms: Adhesion, Bear grease, Binders, Brake caliper, Deck lid, Donuts, Esses, Factory, Flat-out, Happy Hour, Head wrench, Pole Position, restart, Scuffs, Silly Season, Sponsor, Stick, Trading paint, Wrench
All > Recreation > Sports > NASCAR
The air pressure on the race car that causes it to hold the track of pushes it down on the track giving the car better traction. In order to increase corner speeds, NASCAR racing teams strive to create downforce that increases tire grip.
A combination of aerodynamic and centrifugal forces. The more downforce, the more grip your car has. But more downforce also means more drag, which can rob a race car of speed.
- Browse Related Terms: Aerodynamics, Air Pressure, Dirty air, Downforce, Equalized, Neutral, Push, Round, Setup, Tight, Track bar, Wedge, Wedge, round of
All > Recreation > Sports > NASCAR
Slang term for the aerodynamic effect that allows two or more cars traveling nose-to-tail to run faster than a single car. When one car follows another closely, the one in front cuts through the air, providing a cleaner path of air, that is, less resistance, for the car in back.
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All > Recreation > Sports > NASCAR
The practice of two or more cars, while racing, to run nose-to-tail, almost touching. The lead car, by displacing the air in front of it, creates a vacuum between its rear end and the nose of the following car, actually pulling the second car along with it.
When two or more race cars run closely behind each other, sometimes nearly touching. The front car breaks through the air allowing the car in back to have less air resistance and to gain speed. Often a car will use the draft to gain speed and then use the momentum to pass the car in front of it. This is a major strategy in all races, but especially in restrictor plate NASCAR races.
- Browse Related Terms: Air Dam, Draft, Drafting, drag, Front steer, Panhard bar, Rear-steer, Slingshot, Sway bar
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The resistance a car experiences when passing through air at high speeds. A resisting force exerted on a car parallel to its air stream and opposite in direction to its motion.
This is similar to aerodynamics. Drag is how well a race car travels through the air and how much resistance it offers. NASCAR race teams work to get the lowest drag number possible for higher straightaway speeds.
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A steel tube that connects the transmission of a race car to the rear end housing.
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Shortened term for "dynamometer," a machine used to measure an engine's horsepower.
- Browse Related Terms: Cubic-inch displacement, Dyno, Gauge, Horsepower, P&G, RPM