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Turbosupercharger

A term used for turbocharger.

Turbulence

A violent disturbance such as the rapid swirling motion of the air/fuel mixture entering a combustion chamber.

Turkey Pan

Flanges that are installed as deflectors in an engine to reduce oil splash in the lifter areas.

Turn

1. To change directions. 2. A specific speed as in "to turn 90 mph.

Turn Ratio

The ratio between the number of turns between windings in a transformer, primary to secondary.

Turn Signal

Lights located at the four corners of a vehicle to signal a turn.

Turning Diameter

The diameter of a circle a vehicle would make if the steering were locked.

Turning Torque

Amount of torque required to keep a shaft or gear rotating.

TV

Thermo-valve or throttle valve.

TVISD

Throttle vacuum idle speed diaphragm.

TVM

Transmission vacuum modulator.

TVRV

Transaxle vacuum reducer valve.

TVS

An acronym for thermostatic vacuum switch.

TVSA

Trapped vacuum spark advance.

TVV

An acronym for thermostatic vacuum valve.

TWC

Three-way catalyst.

TWC&COC

Three-way catalyst & conventional oxidation catalyst.

TWC+OC

Three-way + oxidation catalytic converter.

Twenty Five Ampere Rate

A battery rating to indicate the time a fully charged battery at 80 degree's F can deliver 25 amperes before the cells drop to 1.75 volts.

Twenty-Hour Rating

The amount of current a battery can deliver for 20 hours at 80 degree's F without the cell voltage dropping below 1.75 volts.