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Lathe-cut Seal

A fixed seal for a caliper piston that has a square or irregular cross section, not round like an O-ring.

Latitudinal

Form side-to-side.

Lattice Structure

An orderly arrangment of atoms in a crystalline material.

Launch

A good start off the starting line in drag racing.

Lay A Patch

The same as to lay rubber.

Lay A Scratch

The same as to lay rubber.

Lay On It

To go fast.

Lay Rubber

To leave streaks of rubber on the pavement during rapid acceleration. Also lay a patch and lay a scratch.

Lay The Crank

A reconditioned crankshaft supplied with the appropriate bearings and an installation kit.

Layout

Lines scribed on a piece of material or metal as a guide in bending or forming.

LCD

An acronym for liquid crystal display.

LCM

Acronym for Lighting Control Module.

LCV

Load control valve.

LDR

(Porsche) Turbo Pressure Regulation.

LDV

Light duty vehicles.

Le Mans

A road-racing circuit in France.

Le Mans Start

A method of starting a race by having the drivers stand across the track and, at the start signal, race to their vehicle, jump in, belt up, start their engines and take off.

Lead

[1] To be out in front. [2] An element Pb often used as a body filler and used as a plate meteral [3] a short term for tetraethyl lead a compound formerly used to increase the octane rating of gasoline.

Lead Peroxide

The positive plate of an automotive battery normally composed of PbSO4.

Lead Sled

1. A term used for kustom or kemp. 2. A car with excessive amounts of lead or body filler over mediocre, sheet-metal work.