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Ir

Iridium An element with the atomic number of 77.

IRCL

An acronym for Infrared Remote Central Locking System.

IRCM

Integrated relay control module.

IROC

An acronym for International Race of Champions.

Iron

A basic element with the chemical symbol Fe.

Iron-core Coil

A coil or transformer which uses an iron core to enhance the magnetic coupling between windings, increasing the magnets flux-density.

Irontite

A tradename for the process of filling cracks in cast-iron cylinder heads and blocks using tapered plugs.

IRP

An acronym for Indianapolis Raceway Park.

IRS

[1] An acronym for Internal Revenue Service [2] An acronym for International Show Car Association.

ISA

Idle speed actuator.

ISC

An acronym for Idle speed Control.

ISC-BPA

Idle speed control-bypass air.

ISCA

An acronym for International Car Show Association.

Isky

The trade name of a popular brand of camshaft and valve-train components..

Islands Of Steel

A term used for hard spots.

ISO

An acronym for the International Standards Organization.

ISO 9141

International Standards Organization recommended data communication network interface.

ISO Diagnostic Protocol

International Standards Organization Diagnostic Protocol used by most European, Asin and some Chrysler vehicles and used the KWO protocol.

ISO Flare

A type of tubing flare connection in which a bobble-shaped end is formed on the tubing; also called a bubble flare.

Iso-octane

A hydrocarbon with an octane rating of 100.