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The system uses tubes with poppet valves from a central injector to spray fuel at each intake port rather than the central throttle body [citation needed]. Fuel pressure is similar to a single-point injection system. CPFI (used from 1992 to 1995) is a batch-fire system, while CSFI (from 1996) is a sequential system. [9]
The D-400 series engine or the Iron Horse engine was a light-duty two-stroke engine used for powering lawnmowers produced from the 1950s to the late 1970s. D-400 engines were single-cylinder engines designed and manufactured by the Outboard Marine Corporation (OMC; Johnson and Evinrude) for Lawn-Boy [ 2 ] and Masport .
Single-point injection was a relatively low-cost way for automakers to reduce exhaust emissions to comply with tightening regulations while providing better "driveability" (easy starting, smooth running, no engine stuttering) than could be obtained with a carburettor. Many of the carburettor's supporting components—such as the air filter ...
The cast iron Essex V6 is a heavy engine due to its sturdy design, weighing 170 kg (370 lb), 56 lb (25 kg) more than the aluminium alloy Rover V8, for example, [22] the Essex V6 also has a very heavy yet sturdy four-main bearing crossplane crankshaft with large 63.52 mm (2.501 in) main journals, [23] and a heavy flywheel in order to smooth out ...
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.
The base of a reciprocating internal combustion engine is the engine block, which is typically made of cast iron (due to its good wear resistance and low cost) [22] or aluminum. In the latter case, the cylinder liners are made of cast iron or steel, [23] or a coating such as nikasil or alusil. The engine block contains the cylinders.
The Iron Duke engine (also called 151, 2500, Pontiac 2.5, and Tech IV) is a 151 cu in (2.5 L) straight-4 piston engine built by the Pontiac Motor Division of General Motors from 1977 until 1993. Originally developed as Pontiac's new economy car engine, it was used in a wide variety of vehicles across GM's lineup in the 1980s as well as supplied ...
To improve durability a new piston design using alumina-silica ceramic fiber reinforced piston ring grooves was used in place of the usual cast iron insert. This makes it one of the earliest applications of metal matrix composites. [73] [58] [74] Like the 2L-T, it is a turbocharged 2.4 L (2,446 cc) SOHC (single overhead cam) engine with 8 ...