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117-626: The Triumph Dolomite was a small saloon car produced by the Triumph Motor Company division of the British Leyland (BL) in Canley , Coventry , between October 1972 and August 1980. The Dolomite was the final addition to Triumph's small-car range (codenamed "Project Ajax"), which had started in 1965 with the Triumph 1300 . Designed to be a replacement for the rear-wheel drive Triumph Herald ,

234-413: 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

351-549: 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

468-484: A black simulated leather roof covering, contrasting coachlines along the body and new badges." From May 1975 on, overdrive on third and fourth gear (giving the Sprint a six-speed gearbox) and tinted glass were fitted as standard. In addition, all Sprints were fitted with body side trims, a plastic surround for the gearlever, and a driver's door mirror. Headrests were now available as an optional extra. From March 1976 headrests,

585-401: A car of this configuration is called a saloon ( / s ə ˈ l u n / ). Hatchback sedans are known simply as hatchbacks (not hatchback saloons ); long-wheelbase luxury saloons with a division between the driver and passengers are limousines . In Australia and New Zealand , sedan is now predominantly used; they were previously simply cars. In the 21st century, saloon remains in

702-450: A cigar lighter. Styling was similar to the Triumph 1500, with some updates such as a black painted rear panel, vinyl D-posts, and new wheel trims. The car was capable of 100 mph (160 km/h), with 60 mph (97 km/h) coming up in just over 11 seconds. An overdrive gearbox was soon made available as an option and there was also an optional automatic transmission . Although

819-593: A descendant of the British Leyland company that owned Triumph, converted the Rover 75 / MG ZT model to rear-wheel drive. The Dolomite changed very little (in all its variants) from the beginning to the very end, only minor trim differences and additional standard equipment being the main changes. 1979 saw the introduction of the Dolomite SE, of which 2,163 were built. The bodyshell was of the basic 1500 (single headlamps) but

936-711: A fairly rare sight on British roads with only about 1300 roadworthy examples registered in the UK with 300-400 16 valve Sprints in 2009. This is favourable when compared to other contemporaries such as the Morris Marina , of which fewer than 800 examples out of 953,576 produced were still roadworthy, despite the Marina being a stronger seller than the Dolomite. They have a popular following throughout Europe and Australia, where Sprints were imported between 1975 and 1978, and raced at Amaroo Park and at

1053-814: 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

1170-671: A four-door station wagon from 1958 until 1960 in the Rambler and Ambassador series. In 1973, the US government passed Federal Motor Vehicle Safety Standard 216 creating a standard roof strength test to measure the integrity of roof structure in motor vehicles to come into effect some years later. Hardtop sedan body style production ended with the 1978 Chrysler Newport . Roofs were covered with vinyl, and B-pillars were minimized by styling methods like matt black finishes. Stylists and engineers soon developed more subtle solutions. A close-coupled sedan

1287-460: 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

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1404-433: 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

1521-622: 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

1638-556: A plan to extract more power. With co-operation from Harry Mundy and the Engineers at Coventry Climax , a 16-valve cylinder head was designed", with all of the valves being actuated using a single camshaft rather than the more conventional DOHC arrangement. The capacity was also increased to 1,998 cc (122 cu in), and combined with bigger carburettors the output was upped to 122 lb⋅ft (165 N⋅m) at 4,500 rpm and 127 bhp (95 kW) at 5,700 rpm. This represented

1755-545: A profile far higher than outright sales would suggest. In addition to stunning performance, the $ 7700 road going Sprints were praised for full instrumentation, a walnut interior, clock, and corded bri-nylon upholstery as seen on the Porsche 911. Like the UK, the aforementioned 'special tuning' options were also available as dealer fitted options. Australian market Sprints cost more new than the high performance Ford XB Falcon GT 351 which had an asking price of $ 7100. Other rivals included

1872-492: A radio, and laminated windscreen were standard. In 1979, to comply with upcoming UK legislation, a rear fog lamp was also standard. As with many other British Leyland cars of the period, a number of "special tuning" options were available for the Dolomite Sprint, offering dealer fitted upgrades to the car that included larger carburettors, freer flowing exhaust systems, and competition camshafts. These upgrades were designed by

1989-574: A railroad train's club carriage (e.g.,, the lounge or parlour carriage). From the 1910s to the 1950s, several United States manufacturers have named models either Sedanet or Sedanette. The term originated as a smaller version of the sedan; however, it has also been used for convertibles and fastback coupes. Models that have been called Sedanet or Sedanette include the 1917 Dort Sedanet, King , 1919 Lexington , 1930s Cadillac Fleetwood Sedanette, 1949 Cadillac Series 62 Sedanette, 1942-1951 Buick Super Sedanet , and 1956 Studebaker . Sedans, as

2106-521: 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

2223-551: A range of models prior to the Second World War and this was revived for the new car. The Dolomite used the longer bodyshell of the front wheel drive Triumph 1500 , but with the majority of the running gear carried over from the rear-wheel drive Triumph Toledo . Initially, the only version available used the new slant-four 1,854 cc engine , which mated an alloy overhead cam (OHC) head to an iron block, providing 91 bhp (68 kW) which offered sprightly performance. This

2340-624: A roof. A one-off instance of similar coachwork is also known in a 1900 De Dion-Bouton Type D. A sedan is typically considered to be a fixed-roof car with at least four seats. Based on this definition, the earliest sedan was the 1911 Speedwell , which was manufactured in the United States. In American English , Latin American Spanish , and Brazilian Portuguese , the term sedan is used (accented as sedán in Spanish). In British English ,

2457-422: A sedan can have four or two doors. Although the sloping rear roofline defined the coupe, the design element has become common on many body styles with manufacturers increasingly "cross-pollinating" the style so that terms such as sedan and coupé have been loosely interpreted as "'four-door coupes' - an inherent contradiction in terms." When a manufacturer produces two-door sedan and four-door sedan versions of

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2574-403: A significant power increase over the smaller 1850 cc variant. The engine was expected to make 135bhp, and factory test engines were producing 150bhp. Hence, it was initially intended to be named the 'Dolomite 135'. This was changed to 'Dolomite Sprint' and published reasons vary. One oft-repeated rumour is that production lines could not guarantee 135bhp. However according to Matthew Vale, it

2691-408: 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

2808-414: A specific category of automobiles, have had serious social consequences shaped by their design and use. Their compact and fuel-efficient nature has made them a preferred choice for urban and suburban settings, promoting individual mobility. However, this accessibility has contributed to increased urban sprawl and car dependency. Sedans, like other private vehicles, encourage dispersed living patterns, reducing

2925-589: 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

3042-407: 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

3159-465: 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

3276-546: A unique competition car which was to be amongst the fastest of its type anywhere in the world. Inspired by L34 Torana program and dubbed 'Super Sprint' this was ultimately rejected by the Confederation of Australian Motorsport(CAMS). CAMS also insisted on 500 cars for homologation requirements whilst Leyland were willing to build only 300 (from the 600 already present in Australia). At the 1976 Bathurst 1000, Jack Brabham's Torana

3393-495: A year. Nonetheless, it may be assumed that production capacity was determined on the initial requirement for 5000 in the first 12 months and at least 1250 a year (417 a month at 4 month intervals) thereafter. It met with some success, with Andy Rouse winning the Drivers' Championship in 1975, and also lifting the manufacturer's title in 1974 with teammate Tony Dron. The Sprint driven by Andy Rouse and Tony Dron placed fifth overall in

3510-577: Is a Stretch-Limousine . In the United States, two-door sedan models were marketed as Tudor in the Ford Model A (1927–1931) series. Automakers use different terms to differentiate their products and for Ford's sedan body styles "the tudor (2-door) and fordor (4-door) were marketing terms designed to stick in the minds of the public." Ford continued to use the Tudor name for 5-window coupes, 2-door convertibles, and roadsters since all had two doors. The Tudor name

3627-534: Is a passenger car in a three-box configuration with separate compartments for an engine, passengers, and cargo. The first recorded use of sedan in reference to an automobile body occurred in 1912. The name derives from the 17th-century litter known as a sedan chair, a one-person enclosed box with windows and carried by porters. Variations of the sedan style include the close-coupled sedan, club sedan, convertible sedan, fastback sedan, hardtop sedan, notchback sedan, and sedanet. A sedan ( / s ɪ ˈ d æ n / )

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3744-457: Is a body style produced in the United States during the 1920s and 1930s. Their two-box boxy styling made these sedans more like crossover vehicles than traditional three-box sedans. Like other close-coupled body styles, the rear seats are farther forward than a regular sedan. This reduced the length of the body; close-coupled sedans, also known as town sedans, were the shortest of the sedan models offered. Models of close-coupled sedans include

3861-423: Is a car with a closed body (i.e., a fixed metal roof) with the engine, passengers, and cargo in separate compartments. This broad definition does not differentiate sedans from various other car body styles. Still, in practice, the typical characteristics of sedans are: It is sometimes suggested that sedans must have four doors (to provide a simple distinction between sedans and two-door coupés ); others state that

3978-464: 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

4095-450: Is good and the model's manners quite impeccable ... Most important of all, it is a tremendously satisfying car to drive. A press release dated May 1973, from BL's public relations department, states "To acknowledge the Dolomite Sprint's performance the Triumph sports car colour range will be used, with the first 2,000 cars finished in Mimosa with black trim. Other distinguishing features are

4212-441: Is not clear how this approval could have been granted, given that FIA/CSI rules (Appendix J, 1975) for Group 1 denied any such modification to the carburation and thus required an additional 5000 cars to be produced in 12 months and fitted with any such modification affecting performance. Yet there is no evidence of any production of Dolomite Sprints fitted with HS8s. Neither is there any evidence of BL documentation supposed to mislead

4329-676: The Chrysler Imperial , Duesenberg Model A , and Packard 745 A two-door sedan for four or five passengers but with less room for passengers than a standard sedan. A Coach body has no external trunk for luggage. Haajanen says it can be difficult to tell the difference between a Club and a Brougham and a Coach body, as if manufacturers were more concerned with marketing their product than adhering to strict body style definitions. Close-coupled saloons originated as four-door thoroughbred sporting horse-drawn carriages with little room for rear passengers' feet. In automotive use, manufacturers in

4446-527: 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

4563-838: 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

4680-632: The Spa 24 hours race in July 1974. In September Dron placed 3rd place overall in a Sprint competing in the RAC Tourist Trophy race of that year. In 1975 Andy Rouse won the British Saloon Car Championship outright by taking the driver's title in a Sprint. In 1976 Broadspeed only ran one Dolomite Sprint in British Saloon Car Championship, with Rouse finishing second in the two-litre class. 1977 saw

4797-554: 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

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4914-507: The 1,296 cc (79 cu in) Standard SC engine from the Herald and Spitfire , and replaced the Toledo as the basic model in the range. The body was identical except for the lengthened body which gave the larger boot of the original Dolomites. The 1300 retained simplified fittings, including single, square, headlamps, basic instrumentation and seats, with the wooden dashboard and carpeting of

5031-464: The 1300 was originally fitted with a 1,296 cc (79 cu in) engine and front-wheel drive . The later model, introduced in September 1970 as the Triumph 1500 , featured a remodelled front and rear, styled by Michelotti , and a larger 1,493 cc (91 cu in) engine. Triumph were however dissatisfied with the market performance of the 1300; although it had been moderately successful,

5148-547: The 1500 TC (standard bodyshell, 1,493 cc (91 cu in) OHV, rear-wheel drive) and the Dolomite/Dolomite Sprint (Standard bodyshell, 1,854 cc (113 cu in) / 1,998 cc (122 cu in), OHC, rear-wheel drive). In 1976, with the manufacturer effectively nationalised and following recommendations in the government commissioned Ryder Report , the Dolomite and other similarly bodied ranges were rationalised as follows: The Dolomite 1300 used

5265-594: The 1630s. Etymologists suggest the name of the chair very probably came through varieties of Italian from the Latin sedere , or the Proto-Indo-European root " sed- " meaning "to sit." The first recorded use of sedan for an automobile body occurred in 1912 when the Studebaker Four and Studebaker Six models were marketed as sedans. There were fully enclosed automobile bodies before 1912. Long before that time,

5382-455: The 1850, and these were also fitted to the Sprint. Due to the increase in power brought by the new engine, the rest of the driveline was upgraded to be able to withstand the extra torque. The gearbox and differential were replaced by a version of those fitted to the TR and 2000 series cars, albeit with a close ratio gearset in the gearbox. The brakes were upgraded with new pad materials at the front, and

5499-513: 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

5616-437: 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

5733-500: 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

5850-438: 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

5967-873: The 1975 Lombard RAC Rally Culcheth and Syer won Group 1 and were first in class. In January 1976 Tony Pond and D. Richards won Group 1 in the Tour of Dean Rally. In the same month, Culcheth and Syer finished fifth overall in the Snowman Rally, and seventh overall in the Mintex Rally a month later, with Tony Pond and D. Richards coming first in Group 1. Culcheth and Syer had to retire in the Granite City Rally held in March, while Pond and Richards came home fourth overall and finished first in Group 1. Culcheth and Syer finished second overall in

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6084-604: The BSCC series. A similarly anomalous FIA approval for the Group 1 use of Weber 48DCOE carbs and suitable inlet manifold, dated 1 Jan 1977, was also removed later and not transferred to FISA Group A. The use of Weber equipped Dolomite Sprints in FIA Group 2 competitions (where choice of carburation was free) seems clear, but their use in Group 1 or "group one and a half" is not. Due to the heavier bodyshell and somewhat fragile Group-2 tuned engine,"rated at 225 bhp at 8000 rpm" by 1977,

6201-674: The Canley Factory as part of a restructuring process which also resulted in the closure of the MG factory at Abingdon two months later. The Dolomite was replaced a year later by the Triumph Acclaim , a four-door front-wheel drive family saloon produced in a joint venture with Honda . However, the Acclaim was not a sporty model, designed instead to compete with traditional family saloons, although it did manage strong sales on British market. This kept

6318-567: The Dolomite Sprint was less successful in rallying. Retirements were rather frequent resulting in failure to complete any rallies during 1974. Things improved slightly in 1975 when a Sprint crewed by Brian Culcheth and Johnstone Syer finished 11th overall in the Welsh Rally in May 1975 (FRW 812L). This was quickly followed up with an impressive second place overall in the Tour of Britain in August 1975, and in

6435-585: The Dolomite proved to be refined and rapid, competitors such as the BMW 2002 had a performance advantage which was costing Triumph both sales and prestige. To remedy this, Triumph unveiled the Dolomite Sprint in June 1973, although the launch had been delayed by a year; it had been due to go on sale in 1972. "A higher-powered development of the slant-four would provide the perfect engine to compete more effectively in motor sport. In response to this brief, Spen King ’s team devised

6552-453: The FIA that 5000 cars fitted with HS8s and a higher lift cam, as an 'emissions kit', were exported to California. Also, this approval was removed from a later version of the FIA form of recognition for the Dolomite Sprint and was not transferred to FISA Group A approvals. There does not appear to be any current evidence of the use of HS8s on Group 1 or the "group one and a half" Dolomite Sprints outside

6669-566: 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,

6786-571: The Lancia Beta ($ 8233) and BMW 2002 ($ 8419). Influential Australian journalist Harold Dvoretsky (who in Europe, drove 1260 km in a Sprint) hailed the Sprint as British Leyland's best and most advanced model since the Jaguar XJ12. Sprints were raced throughout Australia including by dealers such as Ron Hodgson. As described by Mark Oastler, Hodgson invested six figure amounts developing the Sprint into

6903-468: The Sprint still won class B in the last year a factory entered Sprint would compete in the British Saloon Car Championship. It appears that, at least from some point, the racing Dolomites Sprints used in the BSCC series were fitted with larger 2" SU HS8 carburettors, instead of the 1.75" HS6 carbs of the production cars. These are referred to as the "group one and a half cars". The larger HS8s were also approved for FIA Group 1 from 1 Feb 1975. However, it

7020-416: The Sprint was priced at £1,740, which compared extremely well to similar cars from other manufacturers. The press gave the Dolomite Sprint an enthusiastic reception. Motor summarised its road test (subtitled "Britain leads the way") with glowing praise: ...the Sprint must be the answer to many people's prayer. It is well appointed, compact, yet deceptively roomy. Performance is there in plenty, yet economy

7137-403: The Toledo. There was no two-door option as there had been for the Toledo, and the shorter-boot bodyshell of the Toledo ceased production. Standard equipment included reclining front seats, cigar lighter, "fasten seat belt" warning light, driver's door mirror, twin reversing lights and a dipping rear-view mirror. The dashboard design was the same as that fitted to the facelifted Toledo of 1975. There

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7254-731: The Tour of Britain and in the Manx Trophy Rally held in August, while P. Ryan and F. Gallagher came in ninth overall. P. Ryan and M. Nicholson also came first in Group N in the Lindisfarne Rally held in October, and they also came second in Group 1 in the Castrol '76. From May 1976 onwards, the Dolomite Sprint would run alongside the TR7 before being eventually withdrawn from rallying, the TR7 V8 taking over

7371-556: The UK, mainland Europe, and Australia, as well as the USA. The early Robin Hood S7 used the front subframe and mechanical components from any Dolomite, attached to a monocoque body made out of stainless steel. Later Robin Hoods were Ford based. The Latham F2 used Dolomite mechanicals (usually Sprints), but attached to a fibreglass sports car body. The Panther Rio was based on the Dolomite 1850 but

7488-468: The United Kingdom used the term to develop the chummy body, where passengers were forced to be friendly because they were tightly packed. They provided weather protection for extra passengers in what would otherwise be a two-seater car. Two-door versions would be described in the United States and France as coach bodies. A postwar example is the Rover 3 Litre Coupé . Produced in the United States from

7605-464: The United States from the early 1950s into the 1970s provided at least a 2-door hardtop model in their range and a 4-door hardtop. The lack of side bracing demanded a strong, heavy chassis frame to combat unavoidable flexing. The pillarless design was also available in four-door models using unibody construction. For example, Chrysler moved to unibody designs for most of its models in 1960 and American Motors Corporation offered four-door sedans, as well

7722-574: 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,

7839-448: The car for a small niche market. Of the 620 Dolomite Sprints imported into Australia, it is believed fewer than 80 examples (in varying condition) have survived. They are considered collectible today. By the mid-1970s, the range had become complex, with a large number of models and specifications. The Dolomite bodyshell was still being made as the basic Toledo (short boot bodyshell, 1,296 cc (79 cu in) OHV, rear-wheel drive),

7956-501: 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

8073-482: The density of communities and limiting opportunities for local social interactions. This can lead to a decline in neighborhood growth and an increase in reliance on cars for even short trips, increasing environmental and health concerns through CO2 and Greenhouse Gas emissions and reduced physical activity . Furthermore, while sedans are a practical solution for families and individuals, their role in encouraging road-centric urban planning has been criticized for reducing

8190-508: The departure of Rouse and the return of Tony Dron as driver of the Broadspeed prepared Dolomite Sprint. Dron won no less than seven of the twelve races outright against some stiff competition, and narrowly missed out on winning the championship outright because of tyre failure on the final race when leading his class by over a minute. In 1978 Broadspeed entered a sole Dolomite Sprint (driven by Tony Dron) where it won only one race outright, although

8307-493: 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

8424-659: The factory race team and offered in order to homologate the tuning parts for competition purposes. In 1977, a number (probably 62) of Triumph TR7s with the same Sprint engine were manufactured as pre-production cars at Speke , Liverpool. However, this Triumph TR7 Sprint variant was cancelled with the closure of the Speke assembly plant in 1978. From August 1975 to June 1978, 620 Sprints were exported to Australia, all in Mimosa Yellow. The Triumph TR6 and Stag could be specified in Mimosa but not other Dolomites. The 16v Sprint generated

8541-555: The famous Bathurst 1000 . A small number of Dolomites including the Sprint variation were also imported into New Zealand during the original production run. The Dolomite Sprint was campaigned in the British Saloon Car Championship from 1974 to 1978. The BSCC changed to an FIA Group-1 (series-production touring cars) competition from 1974 and the Dolomite Sprint was homologated into Group-1 on 2 Jan 1974. This required initial production of 5,000 cars in 12 months, which

8658-646: 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

8775-401: The fitment of larger drums and a load-sensing valve at the rear. Other changes over the standard Dolomite included the option of a limited slip differential . The optional overdrive and automatic transmissions from the 1850 model were also offered as options on the Sprint. Initial models were only offered in " mimosa yellow", although further colours were available from 1974 on. At its launch,

8892-415: 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

9009-486: 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

9126-517: The higher price and greater complexity meant sales never reached the levels of the simpler and cheaper Herald which preceded it. In an attempt to improve matters, the car was comprehensively reengineered. Launched in September 1970, the Triumph Toledo was a cheaper and more basic variant of the 1300, but with conventional rear-wheel drive . This new model was assembled alongside the now larger-engined front-wheel drive version (the Triumph 1500 ) which

9243-404: The interior was fitted with luxury trim including burr walnut dashboard and door cappings (the dashboard was the same style as fitted to that of the Dolomite 1300), grey velour seats and matching carpet. All the cars were painted black with wide silver stripes running full length, with the letters "SE" at the end of the rear wing. The SE also sported a front spoiler and Spitfire style road wheels. By

9360-447: The introduction of the Dolomite Sprint. The design of the cylinder head won a British Design Council award in 1974. 0–60 mph acceleration took around 8.4 seconds, with a maximum speed of 119 mph (192 km/h). Trim was similar to the 1850, with the addition of standard alloy wheels (another first for a British production car), a vinyl roof , front spoiler, twin exhausts and lowered suspension. The seats were now cloth on

9477-443: The late 1970s the Dolomite was looking increasingly old fashioned against newer competition, though still popular. Designer Giovanni Michelotti delivered a promising new design (Sprint based) resembling a Fiat 132 , with a squared front and BMW style 'kink'. At least one full-size example was built. With severe problems at BLMC, management refused, there was simply not enough money. Production continued until August 1980 when BL closed

9594-407: The long-established names of particular motor races. In other languages, sedans are known as berline ( French ), berlina ( European Spanish , European Portuguese , Romanian , and Italian ), though they may include hatchbacks. These names, like the sedan, all come from forms of passenger transport used before the advent of automobiles. In German , a sedan is called Limousine and a limousine

9711-530: The luxury 1850 (now designated 1850HL), but again featured the 1,493 cc engine. Performance was good, and once again overdrive and automatic transmissions were optional. The HL model had an improved specification level over the standard Dolomite 1500 including a rev counter, volt meter, separate fuel and temperature dials, clock, adjustable steering column and driver's-seat height adjust, head rests, front seat rear pockets, rear centre arm rest and walnut door cappings on all four doors. The new 1500 models replaced

9828-524: The mantle. In the Lombard RAC Rally of 1976, the Sprint was forced to retire with engine problems. 1977 would be the last season where factory entered Sprints would compete in any form of rallying. Ryan and Nicholson managed to win Group 1 while coming eighth overall in the Granite City Rally, and this was followed by ninth overall in the Welsh Rally and finishing second in Group 1. The Scottish Rally saw Ryan and Nicholson come 12th overall and helped win

9945-563: The marque alive until 1984 when the Acclaim was replaced with the Rover 200 and the Triumph Motor Company passed into history. The Dolomite gained a reputation for fragility. The introduction of the Dolomite came at a turbulent time for BL and Triumph in particular with many new model introductions, completely new architecture and alloy head/iron block construction of the OHC slant-four , meant that dealership mechanics were not fully aware of

10062-436: The mid-1920s to the mid-1950s, the name club sedan was used for highly appointed models using the sedan chassis. Some people describe a club sedan as a two-door vehicle with a body style otherwise identical to the sedan models in the range. Others describe a club sedan as having either two or four doors and a shorter roof and therefore less interior space than the other sedan models in the range. Club sedan originates from

10179-513: 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

10296-913: 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 ,

10413-588: 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,

10530-492: The previous front-wheel drive layout with rear-wheel drive, with few external differences apparent in the bodywork. At a time when most manufacturers of smaller cars were concentrating on front-wheel drive cars, this change was widely considered somewhat backward thinking. However, the otherwise completely rear-wheel drive model lineup at Triumph meant that switching to rear-wheel drive would afford significant cost savings. History repeated itself almost 30 years later when MG Rover ,

10647-513: The same fully enclosed but horse-drawn carriages were known as a brougham in the United Kingdom, berline in France, and berlina in Italy; the latter two have become the terms for sedans in these countries. It is sometimes stated that the 1899 Renault Voiturette Type B (a 2-seat car with an extra external seat for a footman/mechanic) was the first sedan, since it is the first known car to be produced with

10764-458: The same model range. Several sedans have a fastback profile but a hatchback-style tailgate is hinged at the roof. Examples include the Peugeot 309 , Škoda Octavia , Hyundai Elantra XD , Chevrolet Malibu Maxx , BMW 4 Series Grand Coupe , Audi A5 Sportback , and Tesla Model S . The names hatchback and sedan are often used to differentiate between body styles of the same model. To avoid confusion,

10881-531: The same model, the shape and position of the greenhouse on both versions may be identical, with only the B-pillar positioned further back to accommodate the longer doors on the two-door versions. A sedan chair, a sophisticated litter , is an enclosed box with windows used to transport one seated person. Porters at the front and rear carry the chair with horizontal poles. Litters date back to long before ancient Egypt, India, and China. Sedan chairs were developed in

10998-467: The servicing requirements of the engine. In particular, it required the cooling system to be kept in good condition, and partially filled with a rust inhibitor, otherwise corrosion leading to radiator blockages and overheating could occur. With a well-maintained example, ownership need not be an issue today. Amongst enthusiasts, the Dolomite and especially Sprint are still popular, with many parts still available and excellent club support. The Dolomite became

11115-402: 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

11232-465: The team prize with two other TR7s. The Manx Rally held in September 1977 was the very last rally where a works-entered Sprint was entered, but it ended its rallying career on a high, managing seventh overall and first in Group 1 (both "Class 1" and "Production" classes) driven by Ryan and Nicholson. Triumph Dolomites continue to be used in many forms of classic motorsport today, with cars being campaigned on track, hillclimbs, rally stages and autocrosses in

11349-472: The term hatchback sedan is not often used. There have been many sedans with a fastback style. Hardtop sedans were a popular body style in the United States from the 1950s to the 1970s. Hardtops are manufactured without a B-pillar leaving uninterrupted open space or, when closed, glass along the side of the vehicle. The top was intended to look like a convertible's top. However, it was fixed and made of hard material that did not fold. All manufacturers in

11466-641: The viability of public transportation and active transport modes like walking and cycling. In cities heavily dependent on sedans, air pollution, noise, and traffic fatalities often increase, posing public health risks and environmental challenges . Multi-valve 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

11583-516: 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

11700-540: 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

11817-464: 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

11934-605: 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

12051-468: 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

12168-413: Was a version of the engine that the company was already providing to Saab for use in their 99 model. The car was aimed at the new compact performance-luxury sector, vying for sales against cars such as the BMW 2002 and Ford Cortina GXL, and was offered with a high level of standard equipment, including twin headlamps, a clock, full instrumentation, luxury seats and carpets, a heated rear window, and

12285-487: Was also used to describe the Škoda 1101/1102 introduced in 1946. The public popularized the name for a two-door model and was then applied by the automaker to the entire line that included a four-door sedan and station wagon versions. In the United States, the notchback sedan distinguishes models with a horizontal trunk lid. The term is generally only referred to in marketing when it is necessary to differentiate between two sedan body styles (e.g., notchback and fastback) of

12402-526: 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

12519-478: 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

12636-520: Was during development that Triumph switched to measuring power from imperial(SAE) to metric(DIN), which calculated outputs approximately 5 per cent lower. In this case 135bhp SAE is 127bhp DIN. As a result of the use of this engine, the Dolomite Sprint has been claimed to be "the world's first mass-produced multi-valve car". While other multi-valve engines (notably the Lotus 907 ) were produced in volume, they were not used in mass production vehicles until after

12753-476: Was exceeded, just, in 1973. Continued production was then needed to maintain Group-1 eligibility. For 1974, "The series production is regarded as completely stopped if the monthly rate has decreased for more than four consecutive months to below 1/12th of the minimum figure required", i.e. it required more than 417 per month for 3 evenly spaced months in 12. But from 1975 (following FIA rule changes), it only required 500

12870-449: Was famously rammed and heavily damaged by a Dolomite Sprint driven by John Dellaca and Kerry Wade. In the following year, CAMS controversially refused to approve the Sprint's pistons, thereby denying the Sprint compliance to race in the 1977 Hardie-Ferodo Bathurst 1000. By July 1976 the strict Australian Design Rule ADR27A came into effect. With emission requirements unique to Australia it was not feasible for British Leyland to reengineer

12987-497: 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

13104-565: Was launched at the same time as the Toledo. The Triumph Dolomite was unveiled at the London Motor Show in October 1971 as the successor for the upmarket variants of front-wheel drive designs, and to replace the six-cylinder Triumph Vitesse , a sporting relative of the Herald. Due to a number of strikes and other industrial upsets, the car was not reported to be in full production until October 1972. The name "Dolomite" had been used by Triumph for

13221-437: Was no overdrive or automatic transmission option with the 1300. The next model up, replacing the Triumph 1500 TC, was the Dolomite 1500. The Dolomite 1500 offered identical specifications to the Dolomite 1300, apart from the seats, but with a 1,493 cc (91 cu in) engine and twin carburettors. Overdrive and automatic transmissions were offered as optional extras. The 1500HL had essentially identical specification to

13338-492: 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

13455-622: Was re-skinned with aluminium panels and had a completely revised interior. Also available was the Panther Rio Especiale, which used the Dolomite Sprint as a base. It was expensive, £9,445 for the Rio Especiale when, in February 1976, a Dolomite Sprint could be purchased for £3,283 and a V12 Jaguar XJ12 5.3 for £7,496. In total, 38 Rios were sold and were produced from 1975 to 1977. Sedan (car) A sedan or saloon ( British English )

13572-401: 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

13689-405: 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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