GLOSSARY TERMS

Y

Y
Yellow.
Y-Axis
The lateral axis around which a vehicle pitches fore and aft.
Y-Block
The block of a V-type engine having a deep crankcase.
Y-Pipe
A Y-shaped pipe, such as an exhaust pipe, that merges two passages into one.
Yaw
The Z-axis.
The rotation of a vehicle structure around a vertical axis.
Yellow Bumper
A freshman driver in NASCAR competition. Also known as yellow tail.
The color of the rear bumper of a first-year driver's car in NASCAR competition.
Yellow Flag
A signal to drivers that there is a hazard on the track in closed-course racing. Also known as yellow light.
Yellow Light
A signal to drivers in closed-course racing that there is hazard on the track. Also known as yellow flag.
Yellow Line
A line that separates the apron from the race track.
The rev limit of a tachometer before reaching the red line.
Yellow Tail
A freshman driver in NASCAR competition. Also known as yellow bumper.
Yield Strength
The amount of force that can be applied to a material before it bends or breaks.
Yoke-Sleeve kit
A kit that may be used to rebuild the yoke.
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