A solid red flag is used to stop the race immediately. Generally races are stopped for bad accidents or weather. Occasionally, a multiple car pileup will halt a race. Wreckers and fire marshals clear the track of cars, debris and fluids. Alternatively, rain makes the surface of the race track dangerous. Once NASCAR officials authorize the race to start again, ... Read More »
RPM
Revolutions Per Minute — a unit of measure used to express the rotational speed of an engine. Read More »
Snowbird
Recreational vehicle owners that travel to Florida or Arizona during the winter and drive, or fly, back when the weather warms up at home. Read More »
Superspeedway
Any oval- or circle-shaped track more than one mile long. Read More »
Two-Staged Turbo
Since there is often a lag while a turbine comes up to speed, some performance cars use two (or more) Turbo units, large and small, driven by different legs of the exhaust. The smaller turbos speed up quickly giving rapid response, and the larger units provide the volume needed for high power at higher rpm’s. Read More »
Tri-Oval Track
An oval track with an extra rounded corner. Daytona is a tri-oval track. Read More »
Understeer
Front-end plowing or diving. Read More »
Valve Body
The valve body is the brain of the transmission, up and down shifting are controlled by it through hydraulic pressure. The valve body, through the use of valves, directs the flow of transmission oil where it needs to go to perform a function such as the application of a gear. Read More »
Active Safety Features
Those that interact with, or are controlled by, the driver. For example brakes, Anti-lock braking system and traction control Read More »
Banger
A slang term to describe an engine. Generally used in conjuction with the number of cylinders, i.e. a 4-banger is a 4-cylinder engine. Read More »
