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In both the interest of fuel economy and weight reduction, the B/C-platform ended the use of "big-block" V8 engines outside of the Cadillac division; after 1980, a 350 cubic-inch V8 was the largest engine fitted in a B-body chassis. In 1985, General Motors underwent a further downsizing of many of its nameplates using the B-platform chassis.
It is the result of car manufacturers attempting to provide more efficient vehicles that emit fewer emissions, [1] often mandated by legislative standards. [2] The term generally relates to traditional internal combustion engines powered by petrol or diesel. Many manufacturers are reducing engine displacement and the number of cylinders.
The 265 Turbo-Fire distinguished itself from other engines of the era such as Cadillac's 331 series of the late 1940s and early 1950s by reducing the size and weight of various components within the engine; a compact engine block combined with a light valvetrain gave the Turbo-Fire a 40 lb (18 kg) weight reduction compared to the inline-sixes ...
Body style. Examples. Average weight. Smart car. Smart Fortwo. 1,500 pounds. Subcompact car. Ford Fiesta. 2,600 pounds. Compact car. Toyota Corolla. 2,600 to 3,000 pounds
Reducing weight has resulted in using aluminum-silicon alloys more frequently for the engine block in small-displacement engines. Engine blocks of comparable design, but using Al-Si alloys, are not lighter than cast iron engine blocks in the same ratio as that for the specific weights of the materials.
The engines are small in both physical dimensions and power output, relative to larger automobile engines.Power outputs are typically less than 11 kW (15 hp). The smallest of all are used in handheld garden machinery, such as string trimmers and chainsaws, which have a displacement as small as 24 cc (1.5 cu in). [2]
Lightweighting is a concept in the auto industry about building cars and trucks that are less heavy as a way to achieve better fuel efficiency, battery range, acceleration, braking and handling. [1] [2] In addition, lighter vehicles can tow and haul larger loads because the engine is not carrying unnecessary weight. [3]
GM claims that the 1.0-liter turbo is 25 percent (3 dBA) quieter than the Ford Fiesta's 1.0-liter turbo, and the 1.4-liter is up to 50 percent (6 dBA) quieter than the VW/Audi 1.4-liter turbo. Other silencing measures include a bed-plate cylinder block that increases stiffness and a stiffened aluminum front cam cover.