By using split crankpins or ignoring minor vibrations, any V angle is possible. The 180° configuration is referred to as a flat-twelve engine or a boxer although it is in reality a 180° V since the pistons can. This is not important in a car if all-out performance is the only goal. Since cost and fuel economy are usually important even in luxury and racing cars and it is often used in marine engines where great power is required, and the hull width is limited, but a longer vessel allows faster hull speed. In twin-propeller boats, two V12 engines can be enough to sit side-by-side, while three V12 engines are sometimes used in high-speed three-propeller configurations. Large, fast cruise ships can have six or more V12 engines, after World War II, the compact, more powerful, and vibration-free turboprop and turbojet engines replaced the V12 in aircraft applications. The first V-type engine was built in 1889 by Daimler, to a design by Wilhelm Maybach, by 1903 V8 engines were being produced for motor boat racing by the Société Antoinette to designs by Léon Levavasseur, building on experience gained with in-line four-cylinder engines.
In 1904, the Putney Motor Works completed a new V12 marine racing engine—the first V12 engine produced for any purpose, a single camshaft mounted in the central V operated the valves directly. As in many engines, the camshaft could be slid longitudinally to engage a second set of cams. Starting is by pumping a charge into each cylinder and switching on the trembler coils, a sliding camshaft gave direct reversing. The camshaft has fluted webs and main bearings in graduated thickness from the largest at the flywheel end, displacing 1,120 cu in, the engine weighed 950 pounds and developed 150 bhp. Little is known of the achievements in the 40-foot hull for which it was intended. One V12 Dörwald marine engine was still running in a Hong Kong junk in the late-1960s. Two more V12s appeared in the 1909-1910 motor boat racing season, the Lamb Boat & Engine Company of Clinton, Iowa built a 1,559 cu in engine for the companys 32-foot Lamb IV. It weighed in at 2,114 pounds, no weight is known for the massive 3,464 cu in F-head engine built by the Orleans Motor Company.
Output is quoted as nearly 400 bhp, by 1914, when Panhard built two 2,356 cu in engines with four-valve cylinder heads the V12 was well established in motor boat racing. In October 1913, Louis Coatalen, chief engineer of the Sunbeam Motor Car Company entered a V12 powered car in the Brooklands short, the engine displaced 9 L, with bore and stroke of 80 x 150 mm. An aluminum crankcase carried two blocks of three cylinders each along each side, with a 60 degree included angle, the cylinders were of iron, with integral cylinder heads with L-shaped combustion chambers
The Ferrari 488 is a mid-engined sports car produced by the Italian sports car manufacturer Ferrari, introduced in 2015 to replace the previous 458. It is powered by a 3. 9-litre twin-turbocharged V8, smaller in displacement, the 488 GTB was named The Supercar of the Year 2015 by car magazine Top Gear. The 488 GTB is powered by a 3902cc all-aluminium dry sump unit of the Ferrari F154 engine family, the engine produces 670 PS at 8,000 rpm and 760 N·m of torque at 3,000 rpm. This results in a power output of 126.3 kW per litre and specific torque output of 194.8 N·m per litre. The only available transmission for the 488 is an automated manual dual-clutch 7-speed F1 gearbox manufactured for Ferrari by Getrag, improved carbon-ceramic brakes are supplied on the 488, derived from technology used in LaFerrari, constructed with new materials that reduce the time needed to achieve optimum operating temperature. Disc sizes are 398 mm at the front, and 360 mm at the rear and these advancements reportedly reduce stopping distances by 9% over the 458. A new 5-spoke alloy wheel was designed for the 488, measuring 51 centimetres front, front tires measure 245/35 with rears 305/30.
The first 488 to be introduced was the 488 GTB 2-seat berlinetta and it was launched on 3 February 2015, in advance of its world première at the March 2015 Geneva Motor Show. The Ferrari 488 Spider is a 2-seat roadster variant of the 488 with a folding hardtop, Ferrari released pictures of the 488 Spider at the end of July 2015, and the car debuted at the Frankfurt Motor Show in September 2015. The Spiders drivetrain is the same of the 488 GTB, including the 670 PS3. 9-litre twin-turbocharged V8, the 488 Spider is only 50 kg heavier than its coupé sibling, and 10 kg lighter than the 458 Spider. The 0–100 km/h sprint is unchanged at 3.0 seconds, while the 0–200 km/h acceleration takes slightly longer at 8.7 seconds, UK sales are expected to begin in late spring 2016. The racing versions of the 488 GTB are the successors to the 458 Italia GTC, both the 488 GTE and GT3 were unveiled at the 2015 Finali Mondiali Ferrari which took place at Mugello. The 488 GTE made its debut in Round 1 of the 2016 WeatherTech SportsCar Championship at the 24 Hours of Daytona on 30–31 January.
The 488 GTE run by Scuderia Corsa finished 10th outright and 4th in the GTLM class, at the 201624 Hours of Le Mans, the car took second place, ran by Risi Competizione. The 488 GT3 made its competition debut in Round 2 of the 2016 Australian GT Championship at the Albert Park Circuit in Melbourne on 17 March. Italian Andrea Montermini and Danish driver Benny Simonsen shared the car for Australian team DeFelice Homes. Over the 4 races that made up the round, Montermini finished 5th in race 1 and 14th in race 3 while Simonsen finished 2nd in race 2 and 6th in the fourth and final race. In February 2017, the 488 GT3 won the 2017 Liqui Moly Bathurst 12 Hour, ran by Maranello Motorsport
Automotive design is the profession involved in the development of the appearance, and to some extent the ergonomics, of motor vehicles or more specifically road vehicles. This most commonly refers to automobiles but refers to motorcycles, buses, the functional design and development of a modern motor vehicle is typically done by a large team from many different disciplines included within automotive engineering. Automotive design in context is primarily concerned with developing the visual appearance or aesthetics of the vehicle. Automotive design is practiced by designers who usually have an art background, the task of the design team is usually split into three main aspects, exterior design, interior design, and color and trim design. Graphic design is an aspect of design, this is generally shared amongst the design team as the lead designer sees fit. Design focuses not only on the outer shape of automobile parts. The aesthetic value will need to correspond to ergonomic functionality and utility features as well, though not all the new vehicular gadgets are to be designated as factory standard items, some of them may be integral to determining the future course of any specific vehicular models.
The stylist responsible for the design of the exterior of the vehicle develops the proportions, Exterior design is first done by a series of digital or manual drawings. Progressively, drawings that are more detailed are executed and approved by appropriate layers of management, Clay and or digital models are developed from, and along with the drawings. The data from these models are used to create a full sized mock-up of the final design. With three- and five-axis CNC milling machines, the model is first designed in a computer program and carved using the machine. Even in times of high-class 3d software and virtual models on power walls, here the emphasis is on ergonomics and the comfort of the passengers. The procedure here is the same as with exterior design, the color and trim designer is responsible for the research and development of all interior and exterior colors and materials used on a vehicle. These include paints, fabric designs, grains, headliner, wood trim, contrast and pattern must be carefully combined to give the vehicle a unique interior environment experience.
Designers work closely with the exterior and interior designers, designers draw inspiration from other design disciplines such as, industrial design, home furnishing and sometimes product design. Specific research is done into global trends to design for two to three model years in the future. Trend boards are created from research in order to keep track of design influences as they relate to the automotive industry. The designer uses this information to develop themes and concepts that are further refined and tested on the vehicle models
A V6 engine is a V engine with six cylinders mounted on the crankshaft in two banks of three cylinders, usually set at either a 60 or 90 degree angle to each other. The V6 is one of the most compact engine configurations, usually ranging from 2.0 L to 4.3 L displacement, shorter than the inline 4, because of its short length, the V6 fits well in the widely used transverse engine front-wheel drive layout. The V6 engine has become widely adopted for medium-sized cars, often as an engine where an inline 4 is standard. Modern V6 engines commonly range in displacement from 2.0 to 4.3 L, though larger and smaller examples have been produced, such as the 1991 Mazda MX3, some of the first V6-powered automobiles were built in 1905 by Marmon. This firm became something of a V-engine specialist, beginning with V2 engines, V4s, V6s, V8s, and, in the 1930s, Marmon was one of the few automakers of the world to offer a V16-powered automobile. From 1908 to 1913 the Deutz Gasmotoren Fabrik produced benzene electric train sets used a V6 as generator engine.
Another V6-powered car was designed in 1918 by Leo Goosen for Buick Chief Engineer Walter L. Marr, only one prototype Buick V6 car was built in 1918, it was long used by the Marr family. The first series-production V6 was introduced by Lancia in 1950 with the Lancia Aurelia model, Lancia sought a smoother and more powerful engine that would fit into an existing narrow engine bay. A Lancia engineer, Francesco De Virgilio, began analyzing the vibration of alternative V-angles for a V6 engine in 1943 and he found that a V6 with its cylinders positioned at a 60° V-angle could be made uniquely smooth-running in comparison with other possible V-angles. There was resistance to his conclusion, because the V6 was a virtually unknown engine type in the 1950s and his design featured four main bearings and six crankpins, resulting in evenly spaced firing intervals and low vibrations. Other manufacturers took note and soon other V6 engines were designed, the use of the sweet spot of 60 degrees V-angle maximized power while minimizing vibration and exterior dimensions of the engine.
In short, GMC introduced a compact V6 design at a time when the engine was considered the pinnacle of 6-cylinder design. To save design time and expense, it was much like a V8 that had two cylinders chopped off. This uneven firing caused harmonic vibrations in the train that were perceived as a rough-running engine by the buyers. GM sold the tooling to Kaiser-Jeep in 1967, later, as a result of the 1973 oil crisis. In 1977, Buick introduced a split pin crankshaft to implement a version of this engine in which cylinders fired consistently every 120°. The V6 does not have the inherent freedom from vibration that the inline-six and flat-six have, counterweights on the crankshaft and a counter rotating balance shaft are required to compensate for the first order rocking motions. This causes an end-to-end rocking motion at crankshaft speed in a straight-three engine and this results in an engine which is short and relatively smooth, but too wide for most engine compartments
Ferrari N. V. is an Italian sports car manufacturer based in Maranello. Founded by Enzo Ferrari in 1939 as Auto Avio Costruzioni, the company built its first car in 1940, however the companys inception as an auto manufacturer is usually recognized in 1947, when the first Ferrari-badged car was completed. Ferrari is the worlds most powerful according to Brand Finance. In May 2012 the 1962 Ferrari 250 GTO became the most expensive car in history, Fiat S. p. A. acquired 50 percent of Ferrari in 1969 and expanded its stake to 90 percent in 1988. In October 2014 Fiat Chrysler Automobiles announced its intentions to separate Ferrari S. p. A. from FCA, through the remaining steps of the separation, FCAs interest in Ferraris business was distributed to shareholders of FCA, with 10 percent continuing to be owned by Piero Ferrari. The spin-off was completed on 3 January 2016, Ferrari road cars are generally seen as a symbol of speed and wealth. Enzo Ferrari was not initially interested in the idea of producing road cars when he formed Scuderia Ferrari in 1929, Scuderia Ferrari literally means Ferrari Stable and is usually used to mean Team Ferrari.
Ferrari bought and fielded Alfa Romeo racing cars for gentlemen drivers, in September 1939 Enzo Ferrari left Alfa Romeo under the provision that he would not use the Ferrari name in association with races or racing cars for at least four years. A few days he founded Auto Avio Costruzioni, headquartered in the facilities of the old Scuderia Ferrari, the new company ostensibly produced machine tools and aircraft accessories. In 1940 Ferrari did in fact produce a race car – the Tipo 815 and it was the first Ferrari car and debuted at the 1940 Mille Miglia, but due to World War II it saw little competition. In 1943 the Ferrari factory moved to Maranello, where it has remained ever since, the factory was bombed by the Allies and subsequently rebuilt including a works for road car production. The first Ferrari-badged car was the 1947125 S, powered by a 1.5 L V12 engine, Enzo Ferrari reluctantly built, the Scuderia Ferrari name was resurrected to denote the factory racing cars and distinguish them from those fielded by customer teams.
In 1960 the company was restructured as a corporation under the name SEFAC S. p. A. Early in 1969, Fiat took a 50 percent stake in Ferrari, new model investment further up in the Ferrari range received a boost. In 1988, Enzo Ferrari oversaw the launch of the Ferrari F40, the last new Ferrari to be launched before his death that year, in 1989 the company was renamed as Ferrari S. p. A. From 2002 to 2004, Ferrari produced the Enzo, their fastest model at the time and it was to be called the F60, continuing on from the F40 and F50, but Ferrari was so pleased with it, they called it the Enzo instead. It was initially offered to loyal and reoccurring customers, each of the 399 made had a tag of $650,000 apiece. On 15 September 2012,964 Ferrari cars (worth over $162 million attended the Ferrari Driving Days event at Silverstone Circuit, on 29 October 2014, the FCA group, resulting from the merger between manufacturers Fiat and Chrysler, announced the split of its luxury brand, Ferrari
Front-engine, rear-wheel-drive layout
In automotive design, an FR, or front-engine, rear-wheel-drive layout is one where the engine is located at the front of the vehicle and driven wheels are located at the rear. This was the automobile layout for most of the 20th century. Modern designs commonly use the front-engine, front-wheel-drive layout, the first FR car was an 1895 Panhard model, so this layout was known as the Système Panhard in the early years. The layout has the advantage of minimizing mechanical complexity, as it allows the transmission to be placed in-line with the output shaft. In comparison, a vehicle with the engine over the driven wheels eliminates the need for the drive shaft, in order to reduce the relative weight of the drive shaft, the transmission was normally split into two parts, the gearbox and the final drive. The gearbox was produced with its highest gear being 1,1. The final drive, in the axle, would reduce this to the most appropriate speed for the wheels. As power is the product of torque and angular velocity, spinning the shaft faster for any given power reduces the torque, in an era when gasoline was cheap and cars were heavy, the mechanical advantages of the FR drivetrain layout made up for any disadvantage in weight terms.
It remained almost universal among car designs until the 1970s, after the Arab oil embargo of 1973 and the 1979 fuel crises, a majority of American FR vehicles were phased out for the FF layout – this trend would spawn the SUV-van conversion market. Throughout the 1980s and 1990s, most American companies set as a priority the eventual removal of rear-wheel drive from their mainstream, chrysler went 100% FF by 1990 and GMs American production went entirely FF by 1997 except the Corvette and Camaro. This configuration is referred to as a transaxle since the transmission. In Europe, front-wheel drive was popularized by small cars like the Mini, Renault 5 and Volkswagen Golf, upscale marques like Mercedes-Benz, BMW, and Jaguar remained mostly independent of this trend, and retained a lineup mostly or entirely made up of FR cars. Japanese mainstream marques such as Toyota were almost exclusively FR until the late 1970s, toyotas first FF vehicle was the Toyota Tercel, with the Corolla and Celica becoming FF while the Camry was designed as an FF from the beginning.
The Supra, Cressida and Century remained FR, luxury division Lexus has a mostly FR lineup. Subarus BRZ is an FR car, currently most cars are FF, including all front-engined economy cars, though FR cars are making a return as an alternative to large sport-utility vehicles. In North America, GM returned to production of FR-based luxury vehicles with the 2003 Cadillac CTS, as of 2012, all but the SRX and XTS are FR-based vehicles. Chevrolet reintroduced the FR-based Camaro in 2009, and the Caprice PPV in 2011, Pontiac had a short run with the FR-based G8 and Pontiac Solstice. A Chevrolet replacement for the G8 called the Chevrolet SS was released in 2013, chrysler and Dodge reintroduced the 300 and Charger on a FR platform
A sedan /sᵻˈdæn/ or saloon is a passenger car in a three-box configuration with A, B & C-pillars and principal volumes articulated in separate compartments for engine and cargo. The passenger compartment features two rows of seats and adequate passenger space in the compartment for adult passengers. The cargo compartment is typically in the rear, with the exception of some rear-engined models, such as the Renault Dauphine, Tatra T613, Volkswagen Type 3 and it is one of the most common car body styles. A battery electric sedan such as the Tesla Model S has no engine compartment, but a front cargo compartment, the primary purpose of the sedan is to transport people and their baggage on ordinary roads. Sedan versions of the body style have a central pillar that supports the roof and come in two-. Sedans usually have a two-box or three-box body, popular in the U. S. from the 1950s through the 1970s, true hardtop body designs have become increasingly rare. For example,1962 Rambler Classic sedans feature identical windshield, A-pillar, roof, C-pillar, and rear window. A two- or four-door design built on a chassis, but with a shorter roof and interior space.
Originating from the car on a Pullman passenger train that was well appointed. A notchback sedan is a sedan, where the passenger volume is clearly distinct from the trunk volume of the vehicle. The roof is on one plane, generally parallel to the ground, the window at a sharp angle to the roof. A fastback sedan is a sedan, with continuous slope from the roof to the base of the decklid. They are not fastbacks because their bodyline changes from the roof to the rear deck and their steeply raked rear windows end with a decklid that does not continue down to the bumper. Instead, their ends are tall — sometimes in a Kammback style — to increase trunk space. Typically this design is chosen for its aerodynamic advantages, automakers can no longer afford the penalty in fuel consumption produced by the traditional notchback three box form. In historic terminology, a sedan will have a frame around the door windows, a true hardtop design has no center or B pillar for roof support behind the front doors).
This pillarless body style offers greater visibility, however, it requires extra underbody strengthening for structural rigidity. The hardtop design can be considered separately, or it can be called a hardtop sedan, during the 1960s and 1970s, hardtop sedans were often sold as sport sedans by several American manufacturers and they were among the top selling body styles
The Ferrari Daytona, officially designated the Ferrari 365 GTB/4, is a two-seat grand tourer produced by Ferrari from 1968 to 1973. It was introduced at the Paris Auto Salon in 1968 to replace the 275 GTB/4, the Daytona was succeeded by the mid-engined 365 GT4 Berlinetta Boxer in 1973. To this day, Ferrari itself only rarely refers to the 365 as the Daytona, unlike Lamborghinis then-new, mid-engined Miura, the Daytona was a traditional front-engined, rear-drive car. At a compression ratio of 9.3,1, it produced 357 PS, 0-60 mph acceleration was just 5.4 seconds. The five-speed manual transmission was mounted in the rear for optimal weight distribution, although a Pininfarina design, as with many previous Ferrari road cars styled by Leonardo Fioravanti, the 365 GTB/4 was radically different. Its sharp-edged styling resembled a Lamborghini more than a traditional Pininfarina Ferrari, early Daytonas featured fixed headlights behind an acrylic glass cover. A new U. S. safety regulation banning headlights behind covers resulted in retractable pop-up twin headlights in 1971, the generally accepted total number of Daytonas from the Ferrari club historians is 1,406 over the life of the model.
This figure includes 156 UK right-hand-drive coupés,122 factory-made spyders, all bodies except the first Pininfarina prototype were produced by Italian coachbuilder Scaglietti, which at the time already had a reputable record of working with Ferrari. Historically, and especially since the mid-1980s and early 1990s, there has mostly been a market price difference between a real berlinetta and a real spyder. Many berlinettas were turned into spyders by aftermarket mechanics, often to increase the monetary value or simply because of the owners preference for an open car. Differences in value have typically remained, even after the most skillful conversions, no Berlinettas were converted into Spyders by Scaglietti, Ferrari would not allow this, or now. The first racing version of the 365GTB/4 was prepared in 1969, Ferrari did not produce an official competition car until late in 1970. The official cars were built in three batches of five each, in 1970-1,1972 and 1973. They all featured a lightweight body making use of aluminium and fibreglass panels, the engine was unchanged from the road car in the first batch of competition cars, but tuned in the latter two batches.
The cars were not raced by the official Scuderia Ferrari team and they enjoyed particular success in the 24 Hours of Le Mans, with results including a 5th overall in 1971, followed by GT class wins in 1972,1973 and 1974. In 1972 Ferrari 365 GTB/4s took the first 5 places of the GT class, the final major success of the car was in 1979, when a 1973 car achieved a class victory in the 24 Hours of Daytona. In 1971, the Daytona gained fame when one was driven by Dan Gurney and Brock Yates in the inaugural Cannonball Baker Sea-To-Shining-Sea Memorial Trophy Dash. Showcasing the cars potential for sustained high speed travel, the pair won with an speed of 80.1 miles per hour
Ferrari F116/F133 engine
The F116 engine family is a series of 65° DOHC V12 petrol engines produced by Ferrari since 1992. Introduced with the 456 GT, this engine had a displacement of 5.5 L and was a new design who replaced the previous Colombo-derived F101 60° V12 engines used in Ferrari 412 four-seater. A more performant variant named F133 debuted in 1996 with the 550 Maranello, the production of the F116 ceased in 2003, in the same period the F133s displacement was increased to 5.7 L and lasted until 2011. It was replaced by the F140 engine family, all those engines featured dry sump lubrication and 48 valves driven by dual overhead camshafts per bank. The block and cylinder heads were constructed from light alloy, featuring Nikasil treated alloy cylinder liners. A Bosch Motronic 2.7 combined fuel injection/ignition engine management system was fitted, superseded by a Motronic 5.2 unit in 1996. Some engineering companies built racing versions based on the F133A engine, a factory 6.0 L racing version of the F133 engine was jointly developed by Ferrari and N.
Technology for the 575 GTC. The 5.5 L variant of the F116/F133 engine family was awarded Above 4.0 litre recognition in the 2000 and 2001 International Engine of the Year competition
The Ferrari 550 Maranello is a front-engined V12 2-seat grand tourer built by Ferrari from 1996 to 2002. In 2000 Ferrari introduced the 550 Barchetta Pininfarina, a limited production version of the 550. The 550 was replaced by the upgraded 575M Maranello in 2002, the Berlinetta Boxer had been developed into the Testarossa, whose last evolution was the 1994 F512 M. Under the presidency of Luca Cordero di Montezemolo, who took office in 1991, after a 30 months of development, the Ferrari 550 Maranello was presented in July 1996 at the Nürburgring racing circuit in Germany. The model name referred to the 5. 5-litres total engine displacement in decilitres and to the town of Maranello, home to the Ferrari headquarters, Pininfarina executed both the exterior and interior design. Frame and main components were shared with the 2+2 Ferrari 456. In 2002 the 550 was replaced by the 575M Maranello, not a model but rather an all-around improved version of the car. In total 3,083 units of the 550 Maranello were produced, the 550 used a front-engine, rear-wheel drive transaxle layout, with the 6-speed gearbox located at the rear axle together with the limited slip differential.
The chassis tubular steel frame, to which the aluminium body panels were soldered. The Pininfarina-designed body had a coefficient of 0.33. Suspension was of the double wishbone type with coil spring and damper units on all four corners. The steering was rack and pinion with variable power assist, the vented disc brakes were 330 mm at the front and 310 mm at the rear. Magnesium alloy was used for the 18-inch wheels, electronic driver aid systems included anti-slip regulation, which could be adjusted on two levels or switched off completely, and four-way anti-lock braking system. The engine is a naturally aspirated 65° V12 with 4 valves per cylinder, dual overhead cams and it displaced 5,473.91 cc and produced 485 PS at 7,000 rpm and 568.1 N·m at 5,000 rpm. Bore and stroke measure 88 mm and 75 mm, according to the manufacturer the 550 Maranello had a top speed of 320 km/h, and could accelerate from a standstill to 100 km/h in 4.4 seconds. Ferrari introduced a version of the 550 at the Paris Motor Show in 2000.
This Barchetta Pininfarina was a roadster with no real convertible top provided. The factory did provide a top, but it was intended only for temporary use as it was cautioned against using the top above 70 mph
A transmission is a machine in a power transmission system, which provides controlled application of the power. Often the term refers simply to the gearbox that uses gears and gear trains to provide speed. In British English, the term refers to the whole drivetrain, including clutch, prop shaft, differential. In American English, the term more specifically to the gearbox alone. The most common use is in vehicles, where the transmission adapts the output of the internal combustion engine to the drive wheels. Such engines need to operate at a high rotational speed, which is inappropriate for starting, stopping. The transmission reduces the engine speed to the slower wheel speed. Transmissions are used on bicycles, fixed machines. Often, a transmission has multiple gear ratios with the ability to switch between them as speed varies and this switching may be done manually or automatically. Directional control may be provided, single-ratio transmissions exist, which simply change the speed and torque of motor output.
The output of the transmission is transmitted via the driveshaft to one or more differentials, while a differential may provide gear reduction, its primary purpose is to permit the wheels at either end of an axle to rotate at different speeds as it changes the direction of rotation. Conventional gear/belt transmissions are not the mechanism for speed/torque adaptation. Alternative mechanisms include torque converters and power transformation, automatic transmissions use a valve body to shift gears using fluid pressures in conjunction with an ecm. Early transmissions included the right-angle drives and other gearing in windmills, horse-powered devices, and steam engines, in support of pumping, most modern gearboxes are used to increase torque while reducing the speed of a prime mover output shaft. This means that the shaft of a gearbox rotates at a slower rate than the input shaft. A gearbox can be set up to do the opposite and provide an increase in speed with a reduction of torque. Some of the simplest gearboxes merely change the rotational direction of power transmission.
Many typical automobile transmissions include the ability to select one of several gear ratios, in this case, most of the gear ratios are used to slow down the output speed of the engine and increase torque