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BMW B58
The BMW B58 is a turbocharged straight-six engine, which began production in 2015. The B58 replaced the N55 and was launched in the F30 340i. The B58 is part of BMW's new modular engine family, each engine using a displacement of per cylinder, following the B38 and B48 engine. The B58 engine was named to Ward's World's 10 Best Engines 4 times, in 2016 (installed in the 340i), 2017 ( M240i), 2019 ( X5) and 2020( M340i). The S58 engine, which was released in early 2019, is the high-performance version of the B58. Design Compared with its BMW N55 predecessor, the B58 features a 20% increase in boost pressure, a closed-deck engine block design, an increase in compression ratio to 11.0:1 and a slight increase in displacement from with added weight of . The turbocharger is a twin-scroll design, for more efficient power delivery with less turbo lag and more power than a conventional single turbocharger, as well as for weight and space saving benefits. The intercooler - a w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW N55
The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo. The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger. It also won three straight Ward's 10 Best Engines awards in 2011–2013. Following the introduction of the BMW B58 engine in 2015, the N55 began to be phased out. BMW S55 engine is a high performance version of the N55 made by BMW M GmbH, which is used by the F80 M3, F82 M4 and F87 M2 Competition/CS. Design The main differences between the N55 and its N54 predecessor are the use of a single turbocharger, the addition of Valvetronic and the type of fuel injectors. Whilst the N54 used a twin-turbo arrangement, the newer N55 uses only a single twin scroll turbocharger. Valvetronic (variable valve lift) is claimed to improve throttle response, low-rev torque, exhaust emissions and to reduce fuel consumption by 15%. The di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW F30
The sixth generation of the BMW 3 Series consists of the BMW F30 (sedan version), BMW F31 (wagon version, marketed as 'Touring') and BMW F34 (fastback version, marketed as 'Gran Turismo') compact executive cars. The F30/F31/F34 generation was produced from October 2011 to 2019 and is often collectively referred to as the F30. For the sixth generation, the coupé and convertible models were spun off to create the new BMW 4 Series nameplate. BMW also introduced a separate hatchback model under the 3 Series nameplate called the 3 Series Gran Turismo (F34). The F30 is the first generation of 3 Series to be powered by a range of turbocharged engines exclusively and electric power steering (replacing the hydraulic power steering systems used previously). The F30 also marked the 3 Series' first use of a three-cylinder engine in its 2015 facelift. A new plug-in hybrid F30 model was also introduced in 2016. A long-wheelbase sedan version (model code F35) was sold in China. The M3 mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Valve Lift
Variable valve lift (VVL) is an automotive piston engine technology which varies the height a valve opens in order to improve performance, fuel economy or emissions. There are two main types of VVL: discrete, which employs fixed valve lift amounts, and continuous, which is able to vary the amount of lift. Continuous valve lift systems typically allow for the elimination of the throttle valve. When used in conjunction with variable valve timing (VVT), variable valve lift can potentially offer infinite control over the intake and exhaust valve timing. History In 1958 Porsche made application for a German patent, also applied for and published as British Patent GB861369 in 1959. The Porsche patent used an oscillating cam to increase the valve lift and duration. The desmodromic cam driven via a push/pull rod from an eccentric shaft or swashplate. It is unknown if any working prototype was ever made. Fiat was the first auto manufacturer to patent a functional automotive variable valve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Valve Timing
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. Two-stroke engines use a power valve system to get similar results to VVT. Background theory The valves within an internal combustion engine are used to control the flow of the intake and exhaust gases into and out of the combustion chamber. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are neces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (engine)
Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as an expression of an engine's size, and by extension as a loose indicator of the power an engine might be capable of producing and the amount of fuel it should be expected to consume. For this reason displacement is one of the measures often used in advertising, as well as regulating, motor vehicles. It is usually expressed using the metric units of cubic centimetres (cc or cm3, equivalent to millilitres) or litres (l or L), orparticularly in the United States cubic inches (CID, cu in, or in3). Definition The overall displacement for a typical reciprocating piston engine is calculated by multiplying together three values; the distance travelled by the piston (the stroke length), the circular area of the cylinder, and the number of cylinders in the whole engine. The formula is: : \text = \text \times \frac \times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Ratio
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the static compression ratio, calculated based on the relative volumes of the combustion chamber and the cylinder when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke. The dynamic compression ratio is a more advanced calculation which also takes into account gasses entering and exiting the cylinder during the compression phase. Effect and typical ratios A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air–fuel mixture due to its higher thermal efficiency. This occurs because internal combustion engines are heat engines, and higher compression ratios permit the same combustion temperature to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Block
In an internal combustion engine, the engine block is the structure which contains the cylinders and other components. In an early automotive engine, the engine block consisted of just the cylinder block, to which a separate crankcase was attached. Modern engine blocks typically have the crankcase integrated with the cylinder block as a single component. Engine blocks often also include elements such as coolant passages and oil galleries. The term "cylinder block" is often used interchangeably with "engine block", although technically, the block of a modern engine (i.e. multiple cylinders integrated with another component) would be classified as a monobloc. __TOC__ Construction The main structure of an engine typically consists of the cylinders, coolant passages, oil galleries, crankcase, and cylinder head(s). The first production engines of the 1880s to 1920s usually used separate components for each of these elements, which were bolted together during engine assembly. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW 3 Series (G20)
The seventh generation of the BMW 3 Series range consists of the BMW G20 (sedan version) and BMW G21 (wagon version, marketed as 'Touring') compact executive cars. The G20/G21 has been in production since mid-October 2018 with a facelift in July 2022 and is often collectively referred to as the G20. The M340i, one of the first models in the range became available for sale in the spring of 2019, with the 330e plug-in hybrid model scheduled for launch in 2020. The 3 Series Gran Turismo fastback body style was discontinued for the G20 generation. For the G20 generation, BMW has begun production in Mexico for various world markets including the US, replacing the Rosslyn plant in South Africa where the previous F30 generation vehicles were assembled. Development and launch At the end of November 2015, a final design proposal for the successor of the F30 3 Series by Alexey Kezha out of 3 total, was chosen by BMW management, as reported by ''Auto Bild'' in October 2015. The new 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW X5 (G05)
The G05 BMW X5 is a mid-size luxury SUV produced by German automaker BMW. It is the fourth, and current, generation of the BMW X5. It was launched in 2018 as the successor to the F15 X5. Sales of the X5 started in November 2018. The X5 M and X5 M Competition performance models were revealed on 1 October 2019. Development and launch Information on the G05 X5 was released online on 6 June 2018. The G05 X5 uses BMW's Cluster Architecture (CLAR) platform also found in the G11 7 Series and G30 5 Series. It features a five-link rear suspension and is also available with four-wheel steering or adjustable air suspension that can be raised or lowered by . Compared to its predecessor, the G05 X5 is longer, wider, and shorter in height. All petrol models feature particulate filters while all diesel models feature AdBlue injection that reduces nitrogen oxide emissions. Almost all regions feature xDrive all-wheel drive, but a rear-wheel drive sDrive model is available in the U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW 2 Series (F22)
The first generation of the coupé and convertible range of the BMW 2 Series subcompact executive car consists of the BMW 2 Series (F22) for the coupé version and BMW 2 Series (F23) for the convertible version. The F22/F23 has been in production since November 2013 and is often collectively referred to as the F22. The F22 was released as the successor to the E82 1 Series coupé and E88 1 Series convertible. It is currently produced in Leipzig, previously alongside the F20 1 Series hatchback range. The high performance F87 M2 model is produced in the coupe body style. It is powered by the BMW N55 and BMW S55 turbocharged inline-six engines. The United States is the most popular market for the 2 Series, accounting for one-third of all sales, followed by Germany and Great Britain. Development and launch The coupé model premiered at the 2014 North American International Auto Show, with sales beginning in March 2014. The convertible model premiered later in October at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW 3 Series (F30)
The sixth generation of the BMW 3 Series consists of the BMW F30 (sedan version), BMW F31 (wagon version, marketed as 'Touring') and BMW F34 (fastback version, marketed as 'Gran Turismo') compact executive cars. The F30/F31/F34 generation was produced from October 2011 to 2019 and is often collectively referred to as the F30. For the sixth generation, the coupé and convertible models were spun off to create the new BMW 4 Series nameplate. BMW also introduced a separate hatchback model under the 3 Series nameplate called the 3 Series Gran Turismo (F34). The F30 is the first generation of 3 Series to be powered by a range of turbocharged engines exclusively and electric power steering (replacing the hydraulic power steering systems used previously). The F30 also marked the 3 Series' first use of a three-cylinder engine in its 2015 facelift. A new plug-in hybrid F30 model was also introduced in 2016. A long-wheelbase sedan version (model code F35) was sold in China. The M3 mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ward's 10 Best Engines
10 of the World's best engines is an annual list of the ten ''"''best''"'' automobile engines available in the U.S. market, that are selected by ''Ward's AutoWorld'' magazine. The list was started in 1994 for Model Year 1995, and has been drawn every year since then, published at the end of the preceding year. Engines must be available in regular-production vehicles on sale in the U.S. market no later than the first quarter of the year. Eligibility has also been based on availability in a vehicle below a base price limit, which increased progressively from for the 1995 list up to for the 2020 list; this limit was eliminated for future competitions following the announcement of the 2020 winners. During a 2-month testing period, Wards editors evaluate each engine according to a number of objective and subjective criteria in everyday driving situations – there is no instrumented testing. The selection takes into account power and torque output, noise, vibration and harshness (NVH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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