An imaginary point about which a vehicle turns when cornering. Also known as the instantaneous centre of turn or rotation.

The minimum circle or radius in which a vehicle can turn when on full steering lock.

Throttle Valve

Thermal Vacuum Switch

Three way catalyst.

Three Way + Oxidation Catalytic Converter

A carburettor with two venturis either acting together or progressively.

An engine operating on two strokes of the piston. Induction occurs in the crankcase below the piston on the upstroke and is transferred to the cylinder at the end of the down stroke. Compression takes place above the piston on up stroke. The combustion and exhaust strokes occur above the piston on the down stroke.

Materials such as paints, fillers, and adhesives which require the addition of a hardener or activator to accomplish a chemical reaction, causing them to cure.

Two different colours on a single paint job.