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74-602: Design emphasis for the F355 was placed on significantly improved performance, as well as drivability across a wider range of speeds and in different environments (such as low-speed city traffic). Apart from the displacement increase from 3.4 L (3,405 cc) to 3.5 L (3,495 cc), the major difference between the V8 engine in the 348 and F355 is the introduction of a 5-valve cylinder head. This new head design allowed for better intake permeability and resulted in an engine that

148-413: A 1.5-liter OHV straight-4 with four valves per cylinder as far back as 1914 but did not use this engine until after World War I . It produced appr. 30 bhp (22.4 kW) at 2700 rpm (15.4 kW/liter or 0.34 bhp/cid). In the 1920 Voiturettes Grand Prix at Le Mans driver Ernest Friderich finished first in a Bugatti Type 13 with the 16-valve engine, averaging 91.96 km/h. Even more successful

222-549: A 360.8 cid (5.8-liter) straight-4 (0.22 bhp per cubic inch). Over 2300 of these powerful early multi-valve engines were built. Stutz not only used them in their famous Bearcat sportscar but in their standard touring cars as well. The mono block White Motor Car engine developed 72 horsepower and less than 150 were built, only three are known to exist today. In 1919 Pierce-Arrow introduced its 524.8 cid (8.6-liter) straight-6 with 24 valves. The engine produced 48.6 bhp (0.09 bhp per cubic inch) and ran very quietly, which

296-835: A North American series added in 1994. It now encompasses four official series in Europe , North America , Japan & The United Kingdom . Competitors from each series are brought together at the annual World Finals (Finali Mondiali) event. In the course of more than 30 years of history, the one-make championship has featured eight cars from the Maranello marque: in addition to the Ferrari 348 Challenge, Ferrari F355 Challenge (debut in 1995), Ferrari 360 Challenge (Since 2000), Ferrari F430 Challenge (Since 2006), Ferrari 458 Challenge (Since 2011), 458 Challenge Evo (Since 2014), Ferrari 488 Challenge (Since 2017), 488 Challenge Evo (Since 2020) and

370-862: A four valve per cylinder engine was the 1973 Triumph Dolomite Sprint . This Triumph used an in-house developed SOHC 16-valve 1,998 cc (122 ci) straight-4 engine that produced 127 bhp (47.6 kW/liter, 1.10 bhp/cid) at introduction. The 1975 Chevrolet Cosworth Vega featured a DOHC multi-valve head designed by Cosworth Engineering in the UK. This 122-cubic-inch straight-4 produced 110 bhp (82 kW; 112 PS) at 5600 rpm (0.90 bhp/cid; 41.0 kW/liter) and 107 lb⋅ft (145 N⋅m) at 4800 rpm. The 1976 Fiat 131 Abarth (51.6 kW/liter), 1976 Lotus Esprit with Lotus 907 engine (54.6 kW/liter, 1.20 bhp/cid), and 1978 BMW M1 with BMW M88 engine (58.7 kW/liter, 1.29 bhp/cid) all used four valves per cylinder. The BMW M88/3 engine

444-467: A four-valve design. The three-valve design was common in the late 1980s and early 1990s; and from 2004 the main valve arrangement used in Ford F-Series trucks, and Ford SUVs. The Ducati ST3 V-twin had 3-valve heads. This is the most common type of multi-valve head, with two exhaust valves and two similar (or slightly larger) inlet valves. This design allows similar breathing as compared to

518-433: A four-valve engine, a five-valve design should have a higher maximum RPM, and the three inlet ports should give efficient cylinder-filling and high gas turbulence (both desirable traits), it has been questioned whether a five-valve configuration gives a cost-effective benefit over four-valve designs. The rise of direct injection may also make five-valve heads more difficult to engineer, as the injector must take up some space on

592-632: A limited edition model a "Fiorano Handling Pack" was offered as a track focused factory option upgrade to the F355 & 355 F1 in Europe to road cars built in the final year of production - these featured upgrades straight from the Challenge Evo parts bin. The Fiorano Handling Pack (FHP) included – Quick steering rack & pump, lowered ride height, uprated springs, wider track, thicker anti-roll bars, Challenge EVO suspension ECU and upgraded brake pads with red callipers and drilled discs specifically for

666-571: A manual F355 Fiorano Berlinetta as rare as a Manual 599. Manufacturer Performance Claims Independently Tested Performance Total production of 11,273 units made the F355 the most-produced Ferrari at the time. This sales record would be surpassed by its successor, the 360 and later, the F430 . In November 2009, Ferrari recalled about 2,400 1995–99 355s and 355F1s in the United States because of improperly placed screw clamps that could damage

740-632: A multi-valved Golf GTI 16V . The 16-valve 1.8-liter straight-4 produced 139 PS (102 kW; 137 bhp) or 56.7 kW/liter, almost 25% up from the 45.6 kW/liter for the previous 8-valve Golf GTI engine. The GM Quad 4 multi-valve engine family debuted early 1987. The Quad 4 was the first mainstream multi-valve engine to be produced by GM after the Chevrolet Cosworth Vega . The NA Quad 4 achieved 1.08 bhp (1 kW; 1 PS) per cubic inch (49.1 kW/liter). Such engines soon became common as Japanese manufacturers adopted

814-445: A race containing as many of the competitors across all series in both Trofeo Pirelli and Coppa Shell as can fit, with Ferrari declaring the winners to be "world champions". The following table has the winners of each event: The Ferrari Challenge uses a single model from the manufacturer's road car range, suitably modified to make them safe for competition use. The lineage began with the 348 Challenge in 1993, followed by its successor,

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888-528: A rallying legend in the 1970s winning many domestic and World Championship events. Other cars claiming to be first are the Jensen Healey , launched in 1972 which used a Lotus 907 belt-driven DOHC 16-valve 2-liter straight-4 producing 140 bhp (54.6 kW/liter, 1.20 bhp/cid). All of these, although mass-produced, are also of relatively limited production, so it is argued that the first widely available and popularly priced mass-production car with

962-610: A removable "targa-style" hardtop roof, which could be stored behind the seats. Other specifications were identical to the Berlinetta. A total of 2,577 GTS models were produced, with 2,048 delivered with the 6-speed manual transmission and another 529 with the F1 transmission. In 1995, Ferrari introduced a race-ready F355 Challenge model for use specifically in the Ferrari Challenge race series. The Ferrari F355 Challenge model

1036-408: A slight increase in torque. For homologation Evolution I (1989) and Evolution II (1990) models were produced that had a redesigned engine to allow for a higher rev limit and improved top-end power capabilities. The Evo II engine offered 235 PS (173 kW; 232 hp) from 2463 cc (70.2 kW/liter). Saab introduced a 16-valve head to their 2.0-liter (1985 cc) straight-4 in 1984 and offered

1110-610: A split-plane crankshaft rather than the Ferrari-type flat-plane. The engine was constructed by Ducati rather than Ferrari, and was produced from 1986 through 1991. The Quattrovalvole was also used by Lancia for their attempt at the World Sportscar Championship with the LC2 . The engine was twin-turbocharged and destroked to 2.65 litres, but produced 720 hp (537 kW) in qualifying trim. The engine

1184-407: A three-valve head, and as the small exhaust valves allow high RPM, this design is very suitable for high power outputs. Less common is the five-valve head, with two exhaust valves and three inlet valves. All five valves are similar in size. This design allows excellent breathing, and, as every valve is small, high RPM and very high power outputs are theoretically available. Although, compared to

1258-469: A two-valve design, Toyota and Yamaha changed the 4A-GE to a four-valve after a year of evaluation. It produced 115-140 bhp (86-104 kW) at 6,600 rpm (54.2-65.5 kW/liter) and 109 lb⋅ft (148 N⋅m) at 5,800 rpm. To compensate for the reduced air speed of a multi-valve engine at low rpms, the first-to-second generation engines included the T-VIS intake system. In 1986 Volkswagen introduced

1332-416: A two-valve engine, delivering more power . A multi-valve engine design has three, four, or five valves per cylinder to achieve improved performance. In automotive engineering , any four-stroke internal combustion engine needs at least two valves per cylinder: one for intake of air (and often fuel ), and another for exhaust of combustion gases. Adding more valves increases valve area and improves

1406-514: A win at the Brazilian Grand Prix, the electro-hydraulic system was operated by paddles behind the steering wheel using the F355's conventional 6-speed manual gearbox. The new transmission guaranteed faster gear changes, with the additional advantage that both of the driver's hands could stay on the wheel at all times. Ferrari produced 4,871 road-going Berlinetta models during the entire production run, of which 3,829 were equipped with

1480-464: Is also used to improve engine performance. The 1908 Ariès VT race cars had 1.4 litre supercharged single cylinder engines with four valve per cylinder desmodromic systems. (Source: [1] ) The 1910 Isotta-Fraschini Tipo KM had a 10.6 litre inline 4 with single overhead camshaft and four valves per cylinder and it had one of the first engines with fully enclosed overhead valve gear (source: Isotta Fraschini Tipo KM [1] and [2] ) The first motorcar in

1554-648: The Coppa Shell (lit. " Shell Cup"). This format has now been transferred to the Europe Challenge series. It was originally launched in 1993, with backing from Pirelli. The European series is a four-class championship, the classes are: The North American also features the Trofeo Pirelli and Coppa Shell class system. This championship was inaugurated in 1994. It is organized by Ferrari North America and sanctioned by IMSA . Starting with

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1628-580: The GTS ( targa top model) were introduced in 1995. In 1997, the Formula One-style electrohydraulic-operated automated manual paddle-shift transmission was introduced and the cars equipped with this transmission were called 355 F1. The F355 was the last in the series of mid-engine Ferrari models with the Flying Buttress rear window, a lineage going back to the 1965 Dino 206 GT , unveiled at

1702-533: The Mazda B8-ME ) use a single fork-shaped rocker arm to drive two valves (generally the exhaust valves) so that fewer cam lobes will be needed in order to reduce manufacturing costs. This has a single large exhaust valve and two smaller intake valves. A three-valve layout allows better breathing than a two-valve head, but the large exhaust valve results in an RPM limit no higher than a two-valve head. The manufacturing cost for this design can be lower than for

1776-848: The R-series engines, the Mazda B8-ME , and the Chrysler 3.5 L V6 engine . The V12 engines of many World War II fighter aircraft also used a SOHC configuration with four valves for each cylinder. The 1993 Mercedes-Benz C-Class (OM604 engine) was the first 4-valve diesel-engined car. Peugeot had a triple overhead cam five-valve Grand Prix car in 1921. In April 1988 an Audi 200 Turbo Quattro powered by an experimental 2.2-liter turbocharged 25-valve straight-5 rated at 478 kW/650 PS@6,200 rpm (217.3 kW/liter) set two world speed records at Nardo , Italy: 326.403 km/h (202.8 mph) for 1,000 km (625 miles) and 324.509 km/h (201.6 mph) for 500 miles. Mitsubishi were

1850-572: The Stutz Motor Company introduced a 322 cid (5.3-liter) dual camshaft 32-valve straight-8 with 156 bhp (116 kW) at 3900 rpm, called DV-32. The engine offered 0.48 bhp per cubic inch. About 100 of these multi-valve engines were built. Stutz also used them in their top-of-the-line sportscar, the DV-32 Super Bearcat that could reach 100 mph (160 km/h). The 1935 Duesenberg SJ Mormon Meteor's engine

1924-513: The 190 E 2.3-16 produced 49 hp (36 kW) and 41 ft•lbf (55 N•m) of torque more than the basic single overhead cam 2.3 straight-4 engine on which it was based offering 185 hp (138 kW) at 6,200 rpm (59.2 kW/liter) and 174 lb⋅ft (236 N⋅m) at 4,500 rpm. In 1988 an enlarged 2.5-liter engine replaced the 2.3-liter. It offered double valve timing chains to fix the easily snapping single chains on early 2.3 engines, and increased peak output by 17 bhp (12.5 kW) with

1998-437: The 1917 Stutz straight-4, White Motor Car Model GL 327 CID Dual Valve Mononblock four, and 1919 Pierce-Arrow straight-6 engines. The standard flathead engines of that day were not very efficient and designers tried to improve engine performance by using multiple valves. The Stutz Motor Company used a modified T-head with 16 valves, twin-spark ignition and aluminium pistons to produce 80 bhp (59 kW) at 2400 rpm from

2072-510: The 1920s when these DOHC engines came to Alfa road cars like the Alfa Romeo 6C . In 1916 US automotive magazine Automobile Topics described a four-cylinder, four-valve-per-cylinder car engine made by Linthwaite-Hussey Motor Co. of Los Angeles, CA, USA: "Firm offers two models of high-speed motor with twin intakes and exhausts." . Early multi-valve engines in T-head configuration were

2146-438: The 1922 Type 29 Grand Prix racer and the legendary Type 35 of 1924. Both Type 29 and Type 35 had a 100 bhp (75 kW) 2-liter SOHC 24-valve NA straight-8 that produced 0.82 bhp (0.61 kW) per cubic inch. A.L.F.A. 40/60 GP was a fully working early racing car prototype made by the company now called Alfa Romeo . Only one example was built in 1914, which was later modified in 1921. This design of Giuseppe Merosi

2220-617: The 2019 season, the regional Ferrari Challenge UK series has been launched, contested at some of the UK's most iconic tracks, from Silverstone to Brands Hatch, Oulton Park to Snetterton. Starting with the 2023 season, the calendar of the Prancing Horse single-make series has been enriched with the second regional series, the Ferrari Challenge Japan, which includes five rounds taking place at the tracks of Fuji (two rounds), Autopolis, Suzuka and Sugo. The Asia-Pacific

2294-460: The 6-speed manual and 1,042 with F1 transmissions. The F355 Spider debuted in 1995, its Pininfarina-penned lines honed by 1,800 hours in the wind tunnel, resulted in a blend of elegant style and aerodynamic performance. For the first time on a Ferrari automobile, the automated manual soft-top was powered electronically. Initially, the Spider was offered with the 6-speed manual transmission. In 1997,

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2368-752: The 6-speed manual transmission. Although some sources indicate that over 300 cars were subject to the Challenge conversion, yet this claim remains unproven. There were 18 RHD cars imported by Ferrari UK and modified by MHT. A further 10 were sold to the rest of the RHD markets. Making the total number to only 28 RHD models. These RHD models become extremely rare and valuable. Some of these rare cars are located in Indonesia, Australia, Japan, and only one known example in South Africa. Each F355 Challenge has an emblem on

2442-468: The F355 Challenge, and the 360 Modena was introduced in 2000. The F355 remained eligible during 2000 and 2001. The 360 Challenge version was the first competition-orientated version to be marketed to the public. The F430 Challenge was phased in during a transitional year in 2006, with the same being the case for the 458 Challenge in 2011. The F430 introduced carbon - ceramic brake discs for

2516-603: The Ferrari 296 Challenge (Since 2024). Currently there are four distinct series, in Europe, in North America, in the UK, and in Japan. The Ferrari Challenge is managed by Ferrari's Corse Clienti department. The now defunct Ferrari Challenge Italy used a two-class format in which distinguished between professional competition drivers in the Trofeo Pirelli (lit. " Pirelli Trophy") and amateur "gentleman drivers" in

2590-636: The Frankfurt Auto Show in September 1983 after it set a world record at Nardo, Italy, recording a combined average speed of 154.06 mph (247.94 km/h) over the 50,000 km (31,000 mi) endurance test. The engine was based on the 2.3-liter 8-valve 136 hp (101 kW) unit already fitted to the 190- and E-Class series. Cosworth developed the DOHC light alloy cast cylinder head with four large valves per cylinder. In roadgoing trim,

2664-468: The Paris Auto Show. The nomenclature does not follow the formula from the previous decades, i.e., engine capacity (in litres) followed by the number of cylinders (e.g. 246 = 2.4 litres, 6 cylinders, 308 = 3.0 litres, 8 cylinders, etc.). In naming the F355, Ferrari used engine capacity followed by the number of valves per cylinder (355 = 3.5 litre engine capacity and 5 valves per cylinder) to bring

2738-458: The Spider was offered with the F1 transmission available as an option. The Spider proved to be the second-most popular F355 model, with a total production of 3,717 units, of which 2,664 were produced with the 6-speed manual transmission and 1,053 were produced with the F1 transmission. In 1995, Ferrari introduced the GTS model to the F355 family. The GTS model was based on the Berlinetta but offered

2812-401: The U.S. market, 74 with the F1 paddle-shift transmission and 26 with the 6-speed manual. An additional 4 units were produced beyond the planned production for the U.S., with only 3 European models and one unit destined for South Africa. The American units were delivered with a numbered plaque affixed to the dashboard while the 3 Fioranos delivered to Europe had no numbered plaque. Although not

2886-586: The added cost of a DOHC valve train . The Ford design uses one spark plug per cylinder located in the centre, but the Mercedes design uses two spark plugs per cylinder located on opposite sides, leaving the centre free to add a direct-to-cylinder fuel injector at a later date. The 1989 Citroën XM was the first 3-valve diesel-engined car. Examples of SOHC four-valve engines include the Honda F-series engines, D-series engines, all J-series engines,

2960-551: The cars used in the series are track only, although some 360 Challenges have been made road legal in Australia, with extensive modifications. However, due to new legislation, this is not possible anymore. The 360 Modena Challenge used in the series should not be confused with the 360 Challenge Stradale , which was a road-legal, track day oriented version of the 360, similar to the 430 Scuderia . In 1999, Sega 's producer Yu Suzuki created Ferrari F355 Challenge: Passione Rossa ,

3034-602: The connecting rods are forged in Ti6-Al-4V titanium alloy . The engine's compression ratio is 11:1 and employs the Bosch Motronic 2.7 engine control unit in the 1995 model year, later changed to the M5.2 in 1996 through end of production. The Motronic system controls the electronic fuel injection and ignition systems, with a single spark plug per cylinder. Engine lubrication is via a dry sump oiling system. The engine

Ferrari F355 - Misplaced Pages Continue

3108-501: The danger of valve float . Some engines are designed to open each intake valve at a slightly different time, which increases turbulence, improving the mixing of air and fuel at low engine speeds. More valves also provide additional cooling to the cylinder head. The disadvantages of multi-valve engines are an increase in manufacturing cost and a potential increase in oil consumption due to the greater number of valve stem seals. Some single overhead camshaft (SOHC) multi-valve engines (such as

3182-552: The engine with and without turbocharger (65.5 kW/liter and 47.9 kW/liter respectively) in the Saab 900 and Saab 9000 . The 2.0-liter Nissan FJ20 was one of the earliest straight-4 mass-produced Japanese engines to have both a DOHC 16-valve configuration (four valves per cylinder, two intake, two exhaust) and electronic fuel injection (EFI) when released in October 1981 in the sixth generation Nissan Skyline . Peak output

3256-669: The first appears to have been the 1969 Nissan Skyline , using the Nissan S20 six cylinder DOHC four-valve engine. This engine was also fitted to Nissan Fairlady Z432 racing edition. For a four-cylinder engine, the first mass-produced car using a four valves per cylinder engine was the British Ford Escort RS1600 , this car used the Cosworth BDA engine which was a Ford 'Kent' block with a Cosworth 16 valve twin cam cylinder head. The car went on to become

3330-541: The first time and gained 80 hp (60 kW) over the 360CS, which has reduced lap times to approximately three seconds shy of the F430 GT2. The 458 Challenge is the first to have driver controlled aids such as traction control, stability management and adjustable ABS brakes. The 296 Challenge is the most recent in a line of Ferraris used in the Ferrari Challenge series. The lineage is as follows: All

3404-414: The first to market a car engine with five valves per cylinder, with the 548 cc 3G81 engine in their Minica Dangan ZZ kei car in 1989. Ferrari Challenge The Ferrari Challenge is a single-marque motorsport championship that was created in 1993, initially catering to owners of the 348 Challenge who wanted to race their cars. The first European season took place in 1993, with

3478-415: The flow of intake and exhaust gases, thereby enhancing combustion , volumetric efficiency , and power output . Multi-valve geometry allows the spark plug to be ideally located within the combustion chamber for optimal flame propagation. Multi-valve engines tend to have smaller valves that have lower reciprocating mass , which can reduce wear on each cam lobe, and allow more power from higher RPM without

3552-401: The front and 265/40 ZR 18 at the rear. Although the F355 was equipped with power-assisted steering (intended to improve low-speed drivability relative to the outgoing 348), this could optionally be replaced with a manual steering rack setup by special order. Aerodynamics for the car included over 1,300 hours of wind tunnel analysis. The car incorporates a nolder profile on the upper portion of

3626-502: The fuel-supply pipes and allow fuel to leak into the engine compartment. Ferrari learned of the problem when it was sued over a fire involving an injury to a driver. Multi-valve#Five valves A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake , and an exhaust ). A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than

3700-493: The head. After making five-valve Genesis engines for several years, Yamaha has since reverted to the cheaper four-valve design. Examples of the five-valve engines are the various 1.8 L 20vT engines manufactured by AUDI AG, the later versions of the Ferrari Dino V8 , and the 1.6 L 20-valve 4A-GE engine made by Toyota in collaboration with Yamaha. For a cylindrical bore and equal-area sized valves, increasing

3774-513: The multi-valve concept. The 1975 Honda Civic introduced Honda's 1.5-liter SOHC 12-valve straight-4 engines. Nissan's 1988–1992 SOHC KA24E engine had three valves per cylinder (two intakes, one exhaust) as well. Nissan upgraded to DOHC after 1992 for some of their sports cars, including the 240SX . In 1988, Renault released a 12 valve version of its Douvrin 4 cylinder 2.0l SOHC. Mercedes and Ford produced three-valve V6 and V8 engines, Ford claiming an 80% improvement in high RPM breathing without

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3848-913: The number of valves beyond five decreases the total valve area. The following table shows the effective areas of differing valve quantities as proportion of cylinder bore. These percentages are based on simple geometry and do not take into account orifices for spark plugs or injectors, but these voids will usually be sited in the "dead space" unavailable for valves. Also, in practice, intake valves are often larger than exhaust valves in heads with an even number of valves-per-cylinder: Turbocharging and supercharging are technologies that also improve engine breathing, and can be used instead of, or in conjunction with, multi-valve engines. The same applies to variable valve timing and variable-length intake manifolds . Rotary valves also offer improved engine breathing and high rev performance but these were never very successful. Cylinder head porting , as part of engine tuning ,

3922-592: The original 300 PS (221 kW; 296 hp) 3.0-liter version the Toyota 7 engine participated in endurance races as a 5.0-liter (4,968 cc) non-turbo V8 with DOHC and 32-valves. It produced 600 PS (441 kW; 592 hp) at 8,000 rpm (88.8 kW/liter) and 55.0 kg⋅m (539 N⋅m; 398 lb⋅ft) at 6,400 rpm. There is much discussion about which was the first 'mass-produced' car to use an engine with four valves per cylinder. For six cylinder engines, and considering special versions of mass-produced cars,

3996-518: The performance advances introduced by a 5-valve per cylinder configuration into the forefront. The Berlinetta was introduced in May 1994, as the first in a successful series of F355 models. Initially, the 6-speed manual was the only transmission available. However, in 1997, the Berlinetta was the first-ever road car to be equipped with the innovative F1-style gearbox management system. Derived directly from Formula 1, where it made its debut in 1989 resulting in

4070-479: The rear that specifically denotes the "F355 Challenge." For the 1999 model year, Ferrari introduced a limited production of F355 Spider models designated, "Serie Fiorano". Launched in March 1999, this limited production run of 100 planned units (104 actually produced) included a number of enhancements increasing the track performance much closer to the Challenge versions: There were 100 Serie Fiorano units delivered to

4144-462: The rear wing, which still needed to be fitted by the dealer. The kit initially was more substantial than the 348 Challenge and the engine, gearbox, and shock-absorbers were sealed with special tags to prevent unauthorized modifications. The kit included the following components/modifications: The F355 Challenge shares the same engine and physical dimensions as the standard F355 Berlinetta. 108 cars in total were produced, all of which were equipped with

4218-498: The road car. The little known Ferrari F355 "Fiorano" was the first ‘Challenge’ inspired track focused V8 Ferrari road car. So few buyers ordered their cars with the Fiorano Handling Package that less than 2% of production had this specified and only 0.3% were manual - In the UK only seven F355’s with a manual gearbox were delivered to the UK market. Just four Berlinettas', Zero GTS and three Spiders. This makes

4292-402: The spark plugs. Only two cars were built. Ferrari developed their Quattrovalvole (or QV) engines in the 80s. Four valves per cylinder were added for the 1982 308 and Mondial Quattrovalvole , bringing power back up to the pre- FI high of 245 hp (183 kW) . A very unusual Dino Quattrovalvole was used in the 1986 Lancia Thema 8.32 . It was based on the 308 QV's engine, but used

4366-462: The tail and a fairing on the underbody that generates downforce when the car is at speed. The car's standard seats are upholstered with hides from Connolly leather, and are fitted asymmetrically in the car; this results in the driver being slightly closer to the car's centerline than the passenger. At launch, the only model available was the Berlinetta . The Spider ( convertible version), and

4440-516: The world speed record of 170 km/h. Robert Peugeot also commissioned the young Ettore Bugatti to develop a GP racing car for the 1912 Grand Prix. This chain-driven Bugatti Type 18 had a 5-litre straight-4 with SOHC and three valves per cylinder (two inlet, one exhaust). It produced appr. 100 bhp (75 kW; 101 PS) at 2800 rpm (0.30 bhp per cubic inch) and could reach 99 mph (159 km/h). The three-valve head would later be used for some of Bugatti's most famous cars, including

4514-551: The world to have an engine with two overhead camshafts and four valves per cylinder was the 1912 Peugeot L76 Grand Prix race car designed by Ernest Henry . Its 7.6-litre monobloc straight-4 with modern hemispherical combustion chambers produced 148 bhp (110 kW) (19.5 HP/Liter(0.32 bhp per cubic inch)). In April 1913, on the Brooklands racetrack in England, a specially built L76 called "la Torpille" (torpedo) beat

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4588-464: Was 148 hp (110 kW) at 6,000 rpm and 133 lb⋅ft (180 N⋅m) at 4,800 rpm. The FJ20 was also offered with a turbocharger, producing 188 hp (140 kW) at 6,400 rpm and 166 lb⋅ft (225 N⋅m) at 4,800 rpm. Following Nissan's lead, Toyota released the 1.6-liter (1,587 cc) 4A-GE engine in 1983. The cylinder head was developed by Yamaha Motor Corporation and was built at Toyota's Shimayama plant. While originally conceived of as

4662-605: Was Bugattis clean sweep of the first four places at Brescia in 1921. In honour of this memorable victory all 16-valve-engined Bugattis were dubbed Brescia . From 1920 through 1926 about 2000 were built. Peugeot had a triple overhead cam 5-valve Grand Prix car in 1921. Bentley used multi-valve engines from the beginning. The Bentley 3 Litre , introduced in 1921, used a monobloc straight-4 with aluminium pistons, pent-roof combustion chambers , twin spark ignition, SOHC, and four valves per cylinder. It produced appr. 70 bhp (0.38 bhp per cubic inch). The 1927 Bentley 4½ Litre

4736-468: Was a 419.6 cid (6.9-liter) straight-8 with DOHC, 4 valves per cylinder and a supercharger. It achieved 400 bhp (298.3 kW) at 5,000 rpm and 0.95 bhp per cubic inch. The 1937 Mercedes-Benz W125 racing car used a supercharged 5.7-liter straight-8 with DOHC and four valves per cylinder. The engine produced 592-646 bhp (441.5-475 kW) at 5800 rpm and achieved 1.71-1.87 bhp per cubic inch (77.8-85.1 kW/liter). The W125 top speed

4810-531: Was an asset to the bootleggers of that era. Multi-valve engines continued to be popular in racing and sports engines. Robert M. Roof, the chief engineer for Laurel Motors, designed his multi-valve Roof Racing Overheads early in the 20th century. Type A 16-valve heads were successful in the teens, Type B was offered in 1918 and Type C 16-valve in 1923. Frank Lockhart drove a Type C overhead cam car to victory in Indiana in 1926. Bugatti also had developed

4884-484: Was appr. 200 mph (322 km/h). The 1967 Cosworth DFV F1 engine, a NA 3.0-liter V8 producing appr. 400 bhp (298 kW; 406 PS) at 9,000 rpm (101.9 kW/liter), featured four valves per cylinder. For many years it was the dominant engine in Formula One, and it was also used in other categories, including CART , Formula 3000 and Sportscar racing . Debuting at the 1968 Japanese Grand Prix in

4958-403: Was considerably more powerful, generating a maximum power output 380 PS (279 kW; 375 hp) at 8,250 rpm and 363 N⋅m (268 lb⋅ft) of at 6,000 rpm. The longitudinally mounted 90° V8 engine was stroked by 2 mm over the 348's engine (77 mm rather than 75 mm), resulting in the small increase in displacement. Engine internals are produced using lightweight materials;

5032-720: Was designed by Paolo Martinelli . The F355 addressed transmission issues that plagued the earlier models. A coolant heat-exchanger was installed which upon startup, warmed the gearbox oil quicker. A rod-driven actuation system, which replaces the 348's cable operated system, was also added for precise gear shifts. The frame is a steel monocoque with tubular steel rear sub-frame with front and rear suspensions using independent, unequal-length wishbones, coil springs over gas-filled telescopic shock absorbers with electronic control servos and anti-roll bars . The car allows selection between two damper settings, "Comfort" and "Sport". The road-going models came with Pirelli tyres, size 225/40ZR 18 at

5106-412: Was developed by starting with a standard Ferrari F355 Berlinetta and modifying it with a US$ 30,000 factory-to-dealer supplied kit. The initial 1995 cars came with factory fitted cage mounts and without carpets. Each year, the cars arrived with more and more factory fitted race parts, culminating in 1998 with full-evolution cars which were supplied as virtually complete race cars except for some parts such as

5180-497: Was later increased to 3.0 litres and increased power output to 828 hp (617 kW). The 1984 Ferrari Testarossa had a 4.9-liter flat-12 with four valves per cylinder. Almost 7,200 Testarossa were produced between 1984 and 1991. In 1985 Lamborghini released a Countach Quattrovalvole , producing 455 PS (335 kW; 449 hp) from a 5.2-liter (5167 cc) Lamborghini V12 engine (64.8 kW/liter). The Mercedes-Benz 190E 2.3-16 with 16-valve engine debuted at

5254-492: Was of similar engine design. The NA racing model offered 130 bhp (0.48 bhp per cubic inch) and the 1929 supercharged 4½ Litre (Blower Bentley) reached 240 bhp (0.89 bhp per cubic inch). The 1926 Bentley 6½ Litre added two cylinders to the monobloc straight-4. This multi-valve straight-6 offered 180-200 bhp (0.45-0.50 bhp per cubic inch). The 1930 Bentley 8 Litre multi-valve straight-6 produced appr. 220 bhp (0.45 bhp per cubic inch). In 1931

5328-486: Was organised from 2011 to 2022, inaugurated in combination with the growing interest and sales for Ferrari in Asia. The seasons included events in Japan, China, Malaysia, Australia, New Zealand and Singapore. The Asia-Pacific also featured the Trofeo Pirelli and Coppa Shell class system. From 2013, the major Ferrari Challenge series have combined to host a World Final common event for all championships. This event culminates in

5402-401: Was the first Alfa Romeo DOHC engine. It had four valves per cylinder, 90-degree valve angle and twin-spark ignition. The GP engine had a displacement of 4.5-liter (4490 cc) and produced 88 bhp (66 kW) at 2950 rpm (14.7 kW/liter), and after modifications in 1921 102 bhp (76 kW) at 3000 rpm. The top speed of this car was 88-93 mph (140–149 km/h). It wasn't until

5476-405: Was used in the 1983 BMW M6 35CSi and in the 1985 BMW M5 . The 1978 Porsche 935/78 racer used a twin turbo 3.2-liter flat-6 (845 bhp/630 kW@8,200 rpm; 784 Nm/578 ft.lbs@6,600 rpm). The water-cooled engine featured four valves per cylinder and output a massive 196.2 kW/liter. Porsche had to abandon its traditional aircooling because the multi-valve DOHC hampered aircooling of

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