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Typical airflow in a four-stroke engine: In stroke #1, the pistons suck in (aspirate) air to the combustion chamber through the opened inlet valve.. A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a ...
L-Jetronic was widely adopted on European cars during the 1970s and 1980s. As a system that uses electronically-controlled fuel injectors which open and close to control the amount of fuel entering the engine, the L-Jetronic system uses the same basic principles as modern electronic fuel injection (EFI) systems.
Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase the engine's power output, economy, or durability. These goals may be mutually exclusive; an engine may be de-tuned with respect to output power in exchange for better economy or longer engine ...
Despite revisions that included a higher-lift camshaft and revised combustion chamber shape, [30] power and torque outputs for the carburetted 3.3 and 4.1 litre engines fell to 88 kW (118 hp) and 97.5 kW (130.7 hp), although maximum power output from the 4.1 EFI engine increased slightly to 121 kW (162 hp). [31]
The carburetor is a Weber twin venturi 28/32 TLDM unit. Power output is improved to 90 PS (66 kW; 89 hp) with the benefit of improved torque and fuel economy. EFI versions used in the Escort XR3i, 1.6i and Fiesta XR2i retained hemispherical combustion chambers. From the 1989 model year all EFI variants are fitted with the Ford EEC-IV ECU.
Nitrous oxide is stored as a liquid in tanks, but is a gas under atmospheric conditions. When injected as a liquid into an inlet manifold, the vaporization and expansion causes a reduction in air/fuel charge temperature with an associated increase in density, thereby increasing the cylinder's volumetric efficiency.
The veteran exec is also still driving a new Camaro ZL1, a 650-horsepower gas-guzzling beast of a muscle car that promises to go zero to 60 in 3.5 seconds.
The Suzuki K engine family is a series of automobile engines from Suzuki, introduced in 1994. Displacements range from 0.7 L to 1.5 L. All engines have aluminium cylinder blocks with three or four cylinders in-line.