The C20LET is an Opel

Opel

Adam Opel AG, generally shortened to Opel, is a German automobile company founded by Adam Opel in 1862. Opel has been building automobiles since 1899, and became an Aktiengesellschaft in 1929...

 internal combustion engine

Internal combustion engine

The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high -pressure gases produced by combustion apply direct force to some component of the engine...

. It is a 2.0 litre turbocharged inline four cylinder petrol engine

Petrol engine

A petrol engine is an internal combustion engine with spark-ignition, designed to run on petrol and similar volatile fuels....

. It displaces

Engine displacement

Engine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead centre to bottom dead centre . It is commonly specified in cubic centimeters , litres , or cubic inches...

 1998 cc, has 16 valves

Multi-valve

In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and can operate at higher revolutions per minute than a two-valve engine, delivering more power.- Multi-valve rationale :A multi-valve design...

, and a timing belt

Timing belt

A timing belt, or cam belt , is a part of an internal combustion engine that controls the timing of the engine's valves. Some engines, such as the flat-4 Volkswagen air-cooled engine, and the straight-6 Toyota F engine use timing gears...

-driven double overhead camshaft (DOHC). It produces a Deutsches Institut für Normung

Deutsches Institut für Normung

is the German national organization for standardization and is that country's ISO member body. DIN is a Registered German Association headquartered in Berlin...

 (DIN) rated motive

Motive power

In thermodynamics, motive power is an agency, as water or steam, used to impart motion. Generally, motive power is defined as a natural agent, as water, steam, wind, electricity, etc., used to impart motion to machinery; a motor; a mover. The term may also define something, as a locomotive or a...

 power

Power (physics)

In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts—the more wattage, the more power, or equivalently the more electrical energy is used per unit...

 output of 150 kW, and generates a torque

Torque

Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....

 turning force of 280 newton metres (207 ft·lbf).

The C20LET engine was introduced in 1992, and was fitted to the Vauxhall

Vauxhall Motors

Vauxhall Motors is a British automotive company owned by General Motors and headquartered in Luton. It was founded in 1857 as a pump and marine engine manufacturer, began manufacturing cars in 1903 and was acquired by GM in 1925. It has been the second-largest selling car brand in the UK for...

/Opel

Opel

Adam Opel AG, generally shortened to Opel, is a German automobile company founded by Adam Opel in 1862. Opel has been building automobiles since 1899, and became an Aktiengesellschaft in 1929...

 Cavalier Turbo and Calibra Turbo. It is similar to the C20XE

C20XE

The C20XE is a DOHC, inline 4 cylinder Family II, Opel engine. It has a displacement of and develops .The C20XE came into production as an evolution of the C20NE engine. It was a further development of the 1987 model 8v 20NE engine...

, apart from the primary addition of a KKK-16 turbocharger

Turbocharger

A turbocharger, or turbo , from the Greek "τύρβη" is a centrifugal compressor powered by a turbine that is driven by an engine's exhaust gases. Its benefit lies with the compressor increasing the mass of air entering the engine , thereby resulting in greater performance...

, forge

Forge

A forge is a hearth used for forging. The term "forge" can also refer to the workplace of a smith or a blacksmith, although the term smithy is then more commonly used.The basic smithy contains a forge, also known as a hearth, for heating metals...

d 86 millimetres (3.39 in) piston

Piston

A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from...

s manufactured by Mahle GmbH

Mahle GmbH

Mahle GmbH is one of the 30 largest automotive suppliers worldwide. As the leading manufacturer of components and systems for combustion engines and its periphery, the Mahle Group is among the top three systems suppliers worldwide for piston systems, cylinder components, valve train systems, air...

, and a Bosch

Robert Bosch GmbH

Robert Bosch GmbH is a multinational engineering and electronics company headquartered in Gerlingen, near Stuttgart, Germany. It is the world's largest supplier of automotive components...

 Motronic

Motronic

Motronic is the trade name given to a range of digital engine-management systems developed by Robert Bosch GmbH, commonly known as Bosch.-Motronic ML1.x:Motronic ML1.x was one of the first digital engine-management systems developed by Bosch...

 M2.7 electronic engine control unit

Engine control unit

An engine control unit is a type of electronic control unit that determines the amount of fuel, ignition timing and other parameters an internal combustion engine needs to keep running...

.

The engine was commonly coupled to the Getrag

Getrag

Getrag is a leading manufacturer of automobile manual transmissions. The company was founded on 1 May 1935, in Ludwigsburg, Germany, by Hermann Hagenmeyer; as the Getriebe und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG...

 six-speed F28 gearbox

Getrag F28/6 transmission

The Getrag F28/6 manual transmission was built by Getrag and fitted to the C20LET 2.0L Turbo Opel Calibra. It was a 6 speed transmission with the following configuration:The letter F stands for "F"ront-wheel-drive....

, and a 4x4 transfer box system. The engine is a popular choice for engine swaps, along with the 2 litre C20XE, and the 2.5 and 3.0 litre V6 C25XE

C25XE

The C25XE is a Family II, Opel internal combustion engine. It is a 2.5 litre V6 petrol engine. It displaces , has 24 valves and uses two timing belt driven double overhead camshafts...

/C30XE and can be found in many other GM

General Motors

General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

 variants, as it is a very straight forward 'lego

Lego

Lego is a line of construction toys manufactured by the Lego Group, a privately held company based in Billund, Denmark. The company's flagship product, Lego, consists of colorful interlocking plastic bricks and an accompanying array of gears, minifigures and various other parts...

swap' modification with the correct tools.

The C20LET and C20XE variation have been retro fitted into many other Vauxhalls including the Nova, Corsa B, Tigra, Corsa C, Vectra B, the Chevrolet/ Daewoo Lacetti and many more variations.

Engine code

The breakdown of the engine name is as follows:

C: Exhaust Emissions Level: ECE R 83 A (like R 15.04)
20: Engine Capacity - 2.0L
L: Compression Ratio - 8.5 to 9.0
E: Mixture System - Multi-point fuel-injection
T: Induction - Turbocharger