Glossary “street racing” Definition:
Racing done on public streets, and is illegal.
street machine
Glossary “street machine” Definition:
A custom-built vehicle or hot rod built for street use.
street legal
Glossary “street legal” Definition:
A vehicle which is driven legally on a public street or highway.
streamlining
Glossary “streamlining” Definition:
Shaping of a vehicle body so as to minimize air resistance.
stratospheric ozone layer
Glossary “stratospheric ozone layer” Definition:
A layer extending from 6 to 15 miles (9.7 to 24.1 km) above Earth’s surface, protecting the Earth from ultraviolet (UV) rays from the sun.
stratosphere
Glossary “stratosphere” Definition:
An upper portion of the atmosphere that extends 10 to 30 miles (16 to 48 km) above the surface for the Earth.
stratified charge engine
Glossary “stratified charge engine” Definition:
Engine in which each cylinder has two combustion chambers connected by a small passage; the smaller prechamber contains the spark plug and receives a rich mixture while the main chamber receives a lean mixture which is ignited by a flame front from the prechamber.
stratified charge
Glossary “stratified charge” Definition:
Type of combustion having a small amount of rich air/fuel mixture near the spark plug with a leaner mixture throughout the remainder of the combustion chamber.
stratified
Glossary “stratified” Definition:
To layer or to have in layers.
strategy
Glossary “strategy” Definition:
The programming in the processor, determining how it reacts under certain conditions.
stranded wire
Glossary “stranded wire” Definition:
Conductor made up of several small wires twisted together.
strain gauge
Glossary “strain gauge” Definition:
Transducer that converts information about the strain placed upon an object into a change of resistance or voltage reading.
straightness
Glossary “straightness” Definition:
Condition where all elements of a surface or an axis are in a straight line.
straightening system
Glossary “straightening system” Definition:
Hydraulic machine for pulling a badly damaged frame or unibody structure back into proper alignment. Also referred to as a frame rack.
straightedge
Glossary “straightedge” Definition:
1). Precision metal bar, ground so that one or more edges are in a very straight line; used in measuring and checking straightness or alignment. 2). Metal bar used to check the engine block deck and cylinder head for warpage.
straight six
Glossary “straight six” Definition:
An in-line, six cylinder engine.
straight in damage
Glossary “straight in damage” Definition:
Damage caused by one vehicle hitting another directly or straight on.
straight four
Glossary “straight four” Definition:
An inline, four-cylinder engine.
straight flexible hose
Glossary “straight flexible hose” Definition:
Term used for flexible hose.
straight eight
Glossary “straight eight” Definition:
An inline, eight-cylinder engine.