An instrument for measuring the speed of the engine crankshaft in
revolutions per minute (RPM).
Turbo Direct Injection Diesel
After Nikola Tesla, a Croation born in what was then part of Austria-Hungary
is now is Yugoslavia. He came to the U.S. at the age of 27, became
an American citizen, and lived in the U.S. the rest of his life
(1856-1943). The tesla is a unit of magnetic flux density, also
called magnetic induction.
Throttle-Body Fuel Injection is a type of Electronic Fuel Injection
which positions the injector(s) centrally in a throttle-body housing.
This housing contains a valve to regulate the airflow through the
Timing refers to the crankshaft angles at which the valves open
and close and at which time the ignition system fires the spark
Tire Rating and sizing
Tires are rated by load capacity, size and speed capacity. For example,
a P225/60VR14 printed on the side of the tire means:
P = P-Metric (Passenger Type Tire)
255 = Section Width (255mm)
60 = Aspect Ratio (tire height/section width)
V = Speed Rating
R = Type of Ply (Radial)
14 = Wheel Diameter (14 inches)
Tire and wheel dimensions are the first point of information in
any discussion of size and capacities. Among the other terms used
to describe tires are: tread, shoulder, carcass, sidewall, bead
seal, bead seat, tire diameter, aspect ratio, speed rating and section
235, 85 R16
235 is the width in mm.
85 refers to the height in percent of the width of the wheel that
is the height.
So 85% of 235 is the tires height in mm.
R16 is the rim size, 16" rims.
The amount by which the front of a front wheel points inward or
outward. A slight amount of toe in is usually specified to keep
the front wheels running parallel on the road by offsetting other
forces that tend to spread the wheels apart.
A force that produces a twisting or rotating motion.
Torque Converter Clutch
An electronically controlled lockup clutch that is automatically
engaged at certain speeds to eliminate the slip between the torque
converter's input and output, thereby improving fuel efficiency
Engine torque is the amount of twisting effort exerted at the crankshaft
by an engine expressed in foot-pounds of force. A foot-pound represents
the force of one pound acting at the right angle to the rotating
crankshaft at distance of one foot in length.
A measure of the engine's power capability, whereby the amount of
twisting or rotating effort being exerted on the crankshaft is expressed
in lb.-ft. of force. Torque is the force that gets the weight of
the vehicle moving, making it an important consideration in trailering.
A long straight bar fastened to the frame at one end and to a suspension
part at the other. In effect, a torsion bar is merely an uncoiled
spring, and spring action is produced by twisting the bar. The main
advantage of the torsion bar over the coil spring in the front suspension
is the ease of adjusting the front suspension height.
Traction control helps provide smoother, more controlled acceleration
by reducing the amount of wheel spin during reduced traction conditions.
Traction control utilizes the vehicle's anti-lock braking system
and is usually activated only at low vehicle speeds.
A rear suspension element consisting of a lengthwise member that
pivots from the body at its forward end and has a wheel hub rigidly
attached to its trailing end.
A transmission and differential combined in one integrated assembly,
eliminating the need for a separate connecting drive shaft. This
configuration is typical in front-wheel-drive vehicles.
Tuned Intake and Exhaust
Intake and exhaust systems that increase the flow of intake charge
into and out of the combustion chambers by varying the length, shape,
or diameter of the component.
Tuned-Port Fuel Injection
Tuned-Port Fuel Injection is almost identical to Multi-Port Fuel
Injection, except that tuned runners are used to channel air to
the cylinder heads. This results in increased airflow to the cylinders.
Rotary compressor or pump that pressurizes engine intake air. It
is driven by the flow of exhaust gases. The increased pressure forces
more air into the cylinder than it could normally draw, allowing
the engine to burn more fuel and in turn produce more power.