The Alfa Romeo 690T is a

twin-turbo Twin-turbo is a type of turbo layout in which two turbochargers are used to compress the intake fuel/air mixture (or intake air, in the case of a direct-injection engine). The most common layout features two identical or mirrored turbochargers in ...

charged, direct injected, 90° V6

petrol engine A petrol engine (gasoline engine in American and Canadian English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends ...

designed and produced by

Alfa Romeo Alfa Romeo Automobiles S.p.A. () is an Italian carmaker known for its sports-oriented vehicles, strong auto racing heritage, and iconic design. Headquartered in Turin, Italy, it is a subsidiary of Stellantis Europe and one of 14 brands of mu ...

since 2015. It is used in the high-performance Giulia Quadrifoglio and Stelvio Quadrifoglio models and is manufactured at the

Termoli Termoli ( Molisano: ''Térmëlë'') is a ''comune'' (municipality) on the south Adriatic coast of Italy, in the province of Campobasso, region of Molise. It has a population of around 32,000, having expanded quickly after World War II, and it is a ...

engine plant.

Description

The 690T is often considered to be the Ferrari F154 engine with two less cylinders, but in fact it is a completely new engine developed by the same engineer, Gianluca Pivetti. Specification similarities that Alfa knew worked well reduced the development time. This 2.9-litre V6 uses single-scroll rather than twin-scroll turbos, which produce of boost pressure. Alfa also added mechanical

cylinder deactivation Variable displacement is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large multi-cylinder engines. Many automobil ...

to the right bank for increased highway

fuel efficiency Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical energy, chemical potential energy contained in a carrier (fuel) into kinetic energy or Mechanical work, w ...

. The 90-degree V6 engine's

crankshaft A crankshaft is a mechanical component used in a reciprocating engine, piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating Shaft (mechanical engineering), shaft containing one or more crankpins, ...

has three crankpins 120 degrees apart, each with two connecting rods mounted side by side. This configuration results in uneven firing at 90 and 150 degrees of each rotation, but for each cylinder bank results in even pulses every 240 degrees, providing evenly-spaced exhaust pulses to each turbocharger and allows one bank to deactivate. Additionally, from 2020 onward, Alfa added port injection, doubling the number of injectors to 12. The Maserati 3.0-litre V6 ''

Nettuno Nettuno is a town and ''comune'' of the Metropolitan City of Rome in the Lazio region of central Italy, south of Rome. A resort city and agricultural center on the Tyrrhenian Sea, it has a population of approximately 50,000. Economy It has a ...

'' engine, introduced in the Maserati MC20, shares many characteristics with the Ferrari F154 and the Alfa Romeo 690T engines. The new

Alfa Romeo 33 Stradale The Alfa Romeo 33 Stradale is a Mid-engine design, mid-engine sports car built by Italian automobile manufacturer Alfa Romeo. It was the fastest commercially available car for the standing kilometer upon its introduction.Alfa Romeo 33 Stradale tu ...

features a larger 3.0-litre version of the ''690T'' engine producing .

Applications

* Alfa Romeo Giulia Quadrifoglio * Alfa Romeo Stelvio Quadrifoglio * Alfa Romeo Giulia GTA and GTAm * 2023 Alfa Romeo Giulia SWB

Zagato Zagato is a Coachbuilder, coachbuilding company founded by Ugo Zagato in 1919. The design center of the company is located in Terrazzano, a village near Rho, Lombardy, Italy. History The 1910s: Aeronautics Ugo Zagato was an Italians, Italian ...

Alfa Romeo

References

{{reflist V6 engines Alfa Romeo engines Gasoline engines by model Engines by model Piston engines Internal combustion engine