96-525: The AJ6 ( Advanced Jaguar 6-cylinder ), and the similar AJ16 , are inline-6 piston engines used by Jaguar cars in the 1980s and 1990s. The AJ6 was designed to replace the successful and long-used Jaguar XK6 engine , and was introduced in 1984. It was only the third all-new engine ever designed by the company. The AJ16 evolution was replaced in 1996 with the Jaguar developed AJ-V8 engine . Jaguar had considered cutting their existing V12 in half to build
192-519: A Manifold Absolute Pressure (MAP) sensor just like the V12 cars from the same era. Later 3.6 L (3,590 cc) AJ6 engines as used in the 1986–1989 XJ40 cars had a crank-sensor type of ignition system with a bare distributor that only carried the spinning ignition rotor inside the distributor cap. The fuel-injection system used on the later 3.6 L (3,590 cc) AJ6 engines used a hot-wire Mass Air Flow sensor to determine engine load. Vehicles using
288-457: A triple in power delivery. As such, it also requires crank throws at 60° – . Such designs appear to have been limited to diesel engines such as the Detroit 71 series , marine engines, and outboard motors. Some of the 120 possible crankshaft configurations have useful properties. Still, all of them have a rocking imbalance that may or may not require a balance shaft, depending on
384-626: A 1.8 L flathead petrol engine used by the Opel 8/40 PS . The displacement of this engine was expanded as it was used in later models such as the Opel Kapitän and Opel Admiral , with later versions switching to an overhead valve (pushrod) design. In 1968, the straight-six versions of the Opel CIH engine were introduced, initially using a single overhead camshaft (SOHC) with some later versions using double overhead camshafts (DOHC). Production of
480-411: A 6-speed Borg Warner T-56 manual transmission. The car had an estimated top speed of 293 km/h (182 mph) due to a longer final gear ratio. On the exterior, the car had a specially designed body kit and a rear spoiler for improved downforce. The car was fitted with wider Yokohama tyres for enhanced grip and to handle the power of the engine and had specially designed 20-spoke alloy wheels. During
576-531: A V6 engine replaced it. The Nissan TB overhead valve engine was introduced in 1987 and produced alongside the other straight-six engines. The six-cylinder versions of the Prince G engine were introduced in 1963 and remained in production until 1969, three years after Prince's merger with Nissan. The 1969–1973 Nissan S20 dual overhead camshaft engine (used in the Nissan Fairlady and first generation of
672-536: A V6, or possibly a V8, but chose instead to develop a new inline six. The cylinders are inclined, as in a slant-6 , by 22 degrees. It uses an aluminium block to reduce weight, and has an optional DOHC head for higher efficiency and power. The original engines were the DOHC 3.6 and the SOHC 2.9. The DOHC 3.6 was revised and enlarged to 4.0 in 1990. It is still essentially an "AJ6", however. This was, as per usual, offered for
768-462: A boot (trunk) spoiler, an aluminium gear lever, optional carbon fibre interior trim and new wheels. It also has 355 mm (14.0 in) front and 330 mm (13.0 in) rear vented disc brakes made by Brembo . When being tested by Jeremy Clarkson on Top Gear in 2003, he demonstrated the car's ability to pull away in fourth gear and continue until it hit the rev limiter: the speedometer indicated 217 km/h (135 mph). Production of
864-533: A lower-cost version of the Oakland six, powered by the Pontiac Split-Head Six flathead engine, which used two cylinder heads. This engine was replaced by the 1941–1954 Pontiac flathead six . The unrelated Pontiac OHV 6 overhead valve engine was produced in 1964–1965, based on a Chevrolet design. Pontiac's final straight-six engine was the 1966–1969 Pontiac OHC 6 overhead camshaft engine, which
960-596: A popular engine in Europe (sales outnumbered 4.0 L (3,980 cc) saloons roughly 4:1) but was not exported to America. Following the launch of the Aston Martin DB7 , the Jaguar AJ6 was used by Aston Martin as well (both companies being owned by Ford at the time). This version featured an Eaton supercharger . Cars using the 4.0 and 3.2 included: Both the 3.2 and 4.0 were substantially revised for
1056-399: A revised steel crankshaft and specially designed four-valves per cylinder heads. The twin cam-shafts worked by a unique chain drive mechanism. The engine has a claimed power output of 482 PS (355 kW; 475 hp) at 6,000 rpm and 637 N⋅m (470 lb⋅ft) of torque at 4,500 rpm. Power was transferred to the rear wheels by an AP racing twin-plate clutch and the engine was mated to
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#17327913967371152-455: A single overhead camshaft engine in 1979 and upgraded to dual overhead camshafts before production ended in 2008 (with the 1G-FE being the final variant). Nissan's first straight-six engine was the 1950–1952 Nissan NAK flathead petrol engine, which continued in various forms until production of the Nissan P engine ended in 2003. The 1963-1965 Nissan K overhead valve petrol engine was used in
1248-597: A straight six version of the Chrysler flathead petrol engine. This was replaced by the 1959–2000 Chrysler Slant-6 overhead valve straight-six petrol engine, which was so named due to the 30-degree angle used to reduce the height of the engine (with the trade-off of a wider engine). The Slant-6 was released in the Dodge Dart economy car and used in many models until a V6 engine replaced it after 30 years. The Chevrolet Stovebolt overhead valve straight-six petrol engine
1344-496: A straight-six engine compare favorably with the more common straight-four engines and V6 engines , which experience significant secondary dynamic imbalance, resulting in engine vibration. As engine reciprocating forces increase with the cube of piston bore, the straight-six is a preferred configuration for large truck engines. An even-firing six-cylinder two-stroke engine requires ignitions at 60° intervals, or else it would run with simultaneous ignitions and be no smoother than
1440-415: A straight-six was the 1961–1969 Alfa Romeo 2600 executive car before the company switched to V6 engines. Mercedes-Benz's history of straight-six engines began with the 1913 Mercedes D.I aircraft engine. The first automotive straight-six engine was the 1924–1929 Daimler M836 3.9 L petrol engine. Following World War 2, Mercedes resumed production of straight-six engines with the 1951 introduction of
1536-412: Is a piston engine with six cylinders arranged in a straight line along the crankshaft . A straight-six engine has perfect primary and secondary engine balance , resulting in fewer vibrations than other designs of six or fewer cylinders. Until the mid-20th century, the straight-six layout was the most common design for engines with six cylinders. However, V6 engines became more common in the 1970s. By
1632-754: Is also approximately 130 lb (59 kg) lighter than the standard DB7. The DB AR1 (standing for American Roadster 1 ) was introduced at the Los Angeles Auto Show in January 2003. It is based on the DB7 Vantage Volante and features a unique body designed by Zagato in collaboration with Henrik Fisker that is very similar to the previous coupé variant, but retaining a full-length chassis. Only 99 examples were produced for sale, though Aston Martin built one additional example for their own factory collection. They were only offered for
1728-558: Is around 250 bhp (186 kW; 253 PS) / 278 lb⋅ft (377 N⋅m). The prototype Jaguar XJ41/42 sports car used a twin-turbo version of the AJ6 4.0, developing 330bhp. A 24-valve DOHC 3.2 L (3,239 cc), essentially a shorter-stroke of 83 mm (3.27 in) 4.0 L (3,980 cc), replaced the 12-valve SOHC 2.9 in 1990. It produced 149 kW (203 PS; 200 hp) of power at 5,250 rpm and 298 N⋅m (220 lb⋅ft) of torque at 4,000 rpm, and proved
1824-402: Is due to the front and rear trio of cylinders moving in pairs (albeit 360° out of phase), thus canceling out the rocking motion present in a straight-three engine . The secondary balance is due to the crank throws being arranged in three planes offset at 120°, resulting in the non-sinusoidal forces summing to zero for all free forces until the sixth order. The engine balance characteristics of
1920-464: Is the German brand BMW , which has always used a straight-six layout for its six-cylinder engines. Since 2017, the trend of switching to V6 engines has reversed due to the ability to create a modular engine family of straight engines sharing many components. Examples include the 2017–present Mercedes-Benz M256 engine , the 2019–present Jaguar Land Rover Ingenium engines (AJ300 and AJ300D versions),
2016-570: The BMW M337 (produced until 1958). Production of straight-six engines resumed in 1968 with the BMW M30 single overhead camshaft engine, built for 27 years and used in various models. The 1978–1989 BMW M88 engine was a double overhead camshaft design that was introduced in the BMW M1 mid-engine sport car. BMW's introduction of turbocharged straight-six engines (aside from the low-volume variants of
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#17327913967372112-508: The Duramax Straight-6 turbocharged diesel engine has been available in several General Motors SUV and light truck models since 2020. On March 25, 2022, Stellantis announced their new turbocharged straight-six engine, called Hurricane. Two outputs are available, a standard 400 or 500 hp (298 or 373 kW; 406 or 507 PS) high performance rated at 450 or 475 pound force-feet (610 or 644 N⋅m) of torque. The turbos on
2208-534: The Ford 240 I6 from 1965 through 1972. The Ford 300 cu in (4.9 L) version of the straight-six engine was built from 1965 until 1996, with notable uses in trucks, SUVs, and vans. However, Ford straight-sixes were replaced by V6 engines in passenger cars during the mid-1970s. In 1908, the Oldsmobile Model Z was powered by a flathead straight-six petrol engine, which was produced until 1912 (in
2304-674: The Ford Falcon large sedan was introduced with a locally-built version of the American Ford Straight-6 overhead valve engine. In 1998, these engines were upgraded to a single overhead camshaft design. This was followed in 2002 by the Ford Barra dual overhead camshaft engine in 2002, which was produced in both naturally aspirated and turbocharged versions. The Ford Barra engine remained in use until Ford Australia ceased local production in 2016. The Chrysler Valiant
2400-757: The Mazda 323 F , the chrome door handles came from the Mazda 323 Estate, the turn signals came from the Mazda MX-5 and the interior door mirror switches came from the Ford Scorpio . The only foreign component would be the wing mirrors which were shared with the Citroën CX . The whole project cost US$ 30 million. These vehicles were fitted with the Tibbe disc tumbler lock barrel design as used on Ford vehicles around
2496-686: The Mercedes-Benz M180 overhead camshaft engine. In 1985, the Mercedes-Benz OM603 3.0 L diesel straight-six engine was introduced. In 1996, the company replaced its petrol straight-sixes with a series of V6 engines, although it continued producing diesel straight-six engines. Production of petrol straight-six engines resumed in 2017 with the introduction of the Mercedes-Benz M256 turbocharged DOHC engine. Opel began production of straight-six engines in 1927 with
2592-659: The Nissan Cedric Special 50 luxury car. Using a similar design, the Nissan H30 engine was used in several luxury cars from 1965 through 1989. In 1966, Nissan began production of the six-cylinder versions of the Nissan L single overhead camshaft engine, which was produced until 2009. The 1985–2004 Nissan RB engine , used in the Nissan Skyline and several other cars, was produced in single overhead camshaft and dual overhead camshaft configurations until
2688-721: The Nissan Skyline GT-R ) was based on the Prince G engine. Mitsubishi produced six-cylinder versions of the Mitsubishi KE engine from 1963 to 1970, as well as the rare six-cylinder versions of the Mitsubishi 6G34 version of the single overhead camshaft "Saturn" engine from 1970 to 1976. The 2000–2006 Daewoo Magnus (also called the Chevrolet Evanda, Chevrolet Epica, Holden Epica, or Suzuki Verona)
2784-531: The Oldsmobile Limited luxury car) in displacements of 453 cu in (7.4 L), 505 cu in (8.3 L) and 706 cu in (11.6 L). Oldsmobile's next straight-six engine was introduced in the 1913 Oldsmobile Six luxury car, initially with a displacement of 380 cu in (6.2 L), followed by a displacement of 177 cu in (2.9 L) for the 1917-1921 Oldsmobile Model 37 luxury car. The later generations of
2880-536: The Oldsmobile Straight-6 also used a flathead design from its introduction in the 1923 Oldsmobile Model 30 luxury car until it was replaced in 1950 by Oldsmobile's V8 engine. The 1913–1929 Oakland Six luxury car was powered by a flathead petrol engine produced in displacements of 177 cu in (2.9 L) and 334 cu in (5.5 L). In 1926, the Pontiac Six was introduced as
2976-582: The XJ-S before it was built into the XJ40 saloon . The 3.6 L (3,590 cc) was the first AJ6 engine, debuting in 1983 on the XJ-S . It had DOHC 4-valve heads with a 91 mm × 92 mm (3.58 in × 3.62 in) bore and stroke. Power was 165 kW (224 PS; 221 hp) with 325 N⋅m (240 lb⋅ft) of torque. Power was reduced to 201 hp (150 kW; 204 PS) for versions having catalytic exhaust system. Early versions of
Jaguar AJ6 engine - Misplaced Pages Continue
3072-675: The 1938 Jaguar 3½ Litre sports saloon/coupe and the 1948 Jaguar Mark V luxury car. The 1927 Rover Two-litre luxury car introduced the company's IOE straight-six petrol engine. This engine was used in various Rover models until the Rover P5 was discontinued in 1973, and in various Land Rover models from the 1961 Land Rover Series IIA until 1980 Land Rover Series III . The 1928 Austin 20/6 luxury car introduced Austin's flathead straight-six petrol engine. The 1938-1939 Austin Twenty-Eight used an enlarged version of this engine. This
3168-789: The 1990–1994 XJ40 cars continued with the crank sensor and empty distributor type of ignition system and the hot-wire Mass Air Flow sensor type of fuel injection control system as the 1988–1989 3.6 L (3,590 cc) XJ40 cars. TWR modified XJ40s resulting in the XJR. Jaguarsport was also formed as a partnership between TWR and Jaguar. The first XJR, the XJR 3.6 L (3,590 cc), had extensive appearance changes coupled with stiffer suspension, anti-roll bar /links, power steering valve that reduced efficiency by 40% and an LSD but no performance enhancements. Interior-wise it included special stitching, "sport" or "XJR" embossed front headrests, and Jaguarsport speedometer labels and tread-plates. 1990 XJRs had
3264-463: The 1995 launch of the renewed Jaguar XJ (X300) saloon. These are the "AJ16" engines, both featuring coil-on-plug distributorless ignition, new engine management systems, magnesium alloy valve covers, revised pistons and other detail changes. The AJ16 was discontinued with the launch of the AJ-V8 (XK8 and XJ8 in 1996/7). For the launch of the new X300 saloon for 1995, substantial revisions were made to
3360-459: The 1998–2006 Volvo S80 ) used the uncommon design of a transversely-mounted straight-six engine. Production of Volvo straight-six engines ceased in 2015. BMW's first product was the 1917 BMW IIIa straight-six aircraft engine. The company began production of automotive straight-six engines in 1933 with the BMW M78 petrol engine, a 1.2 L overhead valve design that evolved over the years into
3456-452: The 2.9l used Bosch LH Jetronic fuel injection and EZ-K ignition (rather than Lucas 9 or 15CU EMS) The 24-valve DOHC 4.0 L (3,980 cc) version replaced the 3.6 L (3,590 cc) AJ6 in 1989. It featured a longer 102 mm (4.02 in) stroke, and generated 183 kW (249 PS; 245 hp) power at 4,750 rpm and 392 N⋅m (289 lb⋅ft) of torque at 3,650 rpm. The 4.0 L (3,980 cc) engines as used in
3552-465: The 2000s, V6 engines replaced most straight-six engines. In terms of packaging, straight-six engines are almost always narrower than a V6 engine or V8 engine , but longer than straight-four engines , V6s, and most V8s. Straight-six engines are typically produced in displacements ranging from 2 to 4 L (122 to 244 cu in), however engines ranging in size from the 0.7 L (43 cu in) Benelli 750 Sei motorcycle engine to
3648-512: The 2001 Geneva Motor Show , Italdesign presented an open-top concept car based on the DB7 mechanicals. The Aston Martin Twenty Twenty was designed in such a way as to overlay the structural extruded aluminium panels and beams over the car's carbon and plastic bodywork. The name 'Twenty Twenty' was meant to invoke a futuristic design intended for the year 2020. Two front seats were protected by
3744-569: The 2021–present Stellantis Hurricane engine and the 2022–present Mazda Skyactiv-X and Skyactiv-D engines. Alfa Romeo's first production straight-six engine - 6.3 L flathead petrol engine - was introduced in 1921 in the Alfa Romeo G1 luxury car. An overhead valve design was introduced in the 1922 Alfa Romeo RL sports car, and an overhead camshaft design was used in the 1927 Alfa Romeo 6C sports car and various racing cars from 1927 until 1954. The last Alfa Romeo model using
3840-580: The 3.6 were: The 2.9 L (2,919 cc) used a SOHC head from the Jaguar V12 engine , and was prone to failure. The block is the same as the 3.6, with the crankshaft and pistons lowering the stroke to 74.8 mm (2.94 in). Only the 1986–1989 Jaguar XJ6 used the 2.9. It was used for the entry-level XJ6 in Britain and Europe but rarely, if ever, seen in models exported to the US. The SOHC 2.9, which
3936-533: The 3.6 L (3,590 cc) AJ6 as used in the 1984 - 1987 XJ-S cars had a conventional distributor type of ignition system with electronics within the distributor body. This early AJ6 ignition system is nearly identical to the system used on the XK engine in the Series III XJ6 cars. The Lucas fuel injection system on the 3.6 L (3,590 cc) AJ6 engines in these early XJ-S cars sensed engine load using
Jaguar AJ6 engine - Misplaced Pages Continue
4032-670: The 4.0 L (3,980 cc) and 3.2 L (3,239 cc) AJ6 engines. The new design was called the AJ16 to reflect the major differences between it and the original AJ6. Cars using the 4.0 and 3.2 included: A supercharged version of the 4.0 L (3,980 cc) AJ16 was released in 1994 in the Jaguar XJR which used an Eaton M90 blower to boost output to 240 kW (326 PS; 322 hp) and 512 N⋅m (378 lb⋅ft) Inline-6 The straight-six engine (also referred to as an inline-six engine ; abbreviated I6 or L6)
4128-535: The 6.3 litre variant as also seen in the Virage 6.3. Unique features to distinguish this car include twin power bulges on the bonnet including brass coloured mesh grilles for additional cooling. TWR owner Tom Walkinshaw commissioned a one-off model in 1996 for his ownership based on the Aston Martin DB7. The car was fitted with a 6.4-litre Jaguar-TWR V12 engine based on a 6.0-litre V12 engine. The engine had
4224-401: The 6.7 L (409 cu in) Cummins B Series engine pickup truck engine have also been produced. Due to its well-balanced configuration, the straight-six can be scaled up to substantial sizes for heavy trucks, locomotives, industrial and marine use. If an appropriate firing order is used, a straight-six engine has perfect primary and secondary engine balance . The primary balance
4320-630: The DB7 GT compared to 3.77 for the manual DB7 Vantage). This resulted in dramatically improved mid-range performance and defined the different character of the DB7 GT compared to the DB7 Vantage (see table below ). Additionally, the GT and GTA chassis had substantially updated suspension from the DB7 Vantage models. Aesthetically, compared to the Vantage it has a mesh front grille, vents in the bonnet (hood),
4416-420: The DB7. For this purpose, Prodrive was commissioned to create a racing DB7 based on the first DB7 production car. This car features a red noseband. A second car, built by Works Service, followed and had a yellow noseband. The plans for the racing series were cancelled. In 1998, Works Service was given the task of supplying a DB7 powered by the famous V8. To make things more interesting, Works Service opted to use
4512-489: The GT and GTA was extremely limited, as only 190 GTs and 112 GTAs were produced worldwide and only 64 GTs and 17 GTAs were shipped to the US market, out of a total of 302 cars. (48 - 113 Km/h) (80 - 113 Km/h) (80 - 113 Km/h) (80 - 113 Km/h) A number of special-edition DB7 cars were built: Two special edition variants were made at the end of the DB7's production run, the DB7 Zagato and DB AR1 . The DB7 Zagato
4608-500: The Geneva Motor Show. Its 5.9-litre, 48-valve, Aston Martin V12 engine has a power output of 426 PS (313 kW; 420 hp) and 400 lb⋅ft (542 N⋅m) of torque. It has a compression ratio of 10.3:1. Two transmission choices were available, those being a TREMEC T-56 six-speed manual or a ZF 5HP30 five-speed automatic. Aston Martin claimed the car had a top speed of either 299 km/h (186 mph) with
4704-739: The Hurricane Standard Output deliver a peak boost of 22 psi, while the Hurricane High Output turbos deliver 26 psi of peak boost. The 3.0 L Hurricane is produced at Stellantis’ Saltillo Engine Plant in Mexico. Toyota's first straight-six engine was the Toyota Type A , produced from 1935 through 1947. The Type A was an overhead-valve petrol engine based on the Chevrolet Stovebolt engine. This
4800-505: The M30 engine in the 1980s) was in 2006 BMW N54 and the production of naturally aspirated engines ceased in 2015. As of 2022 , the BMW B58 turbocharged straight-six engine remains in production, along with its higher performance BMW S58 variants. Rolls-Royce's first straight-six engine was a 6.0 L IOE petrol engine, which was used in the 1905 Rolls-Royce 30 hp luxury car. This car
4896-667: The Opel CIH engine continued until 1993, when a V6 engine replaced it. Volvo began production of straight-six engines with the 1929–1958 Penta DB flathead petrol engines. The company resumed production in 1969 with the Volvo B30 overhead valve petrol engine, followed by the straight-six versions of the Volvo Modular Engine introduced in 1995 and then the Volvo SI6 engine introduced in 2006. Several models (such as
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#17327913967374992-415: The U.S. market. The AR1 was intended for sunny American states and as such had no roof of any kind. Collectors elsewhere in the world have attempted to remedy this, but long-time DB AR1 owner Robert Stockman commissioned Zagato to construct a small folding convertible top. The resulting electrically operated unit is very slight, referred to as a "shelter" rather than a roof by Andrea Zagato, and hides behind
5088-580: The United States, the Coupé was sold for US$ 140,000, and the Volante for US$ 150,000. Works Service provided a special Driving Dynamics package, which greatly enhanced performance and handling for drivers who wanted more than what the standard configuration offered. The straight-6 models were phased out in mid-1999 due to lack of market interest. In 1999, the more powerful DB7 V12 Vantage was introduced at
5184-450: The Vantage, with its V12 engine now having a power output of 441 PS (324 kW; 435 hp) and 410 lb⋅ft (556 N⋅m) of torque for the manual GT, although the GTA retained the engine having a power output of 426 PS (313 kW; 420 hp) and 400 lb⋅ft (542 N⋅m) of torque of the standard DB7 Vantage. The DB7 GT also received a shorter final drive ratio (4.09 for
5280-606: The Virage (soon rechristened "V8" following Vantage styling revisions) continuing at Newport Pagnell , a new factory was acquired at Bloxham , Oxfordshire that had previously been used to manufacture the XJ220, where every DB7 would be built throughout its production run. The DB7 and its variants were the only Aston Martin automobiles produced in Bloxham and the only ones with a steel unit construction inherited from Jaguar (Aston Martin had traditionally used aluminium for construction of
5376-492: The XJ40 XJR (from H-registration year onwards). Bodykit was re-sculptured and the boot spoiler was deleted. Side mouldings were added, with the smaller "XJR" badge embedded in them. Engine had a plaque saying "Jaguarsport XJR 4L" on the rocker cover. XJR badge size was decreased on the boot (had previously ranged from XJR-3.6, XJR-4L, 4-litre and "XJR". The later one ("XJR") is most common and the only badge that could be chosen on
5472-610: The XJS due to its weak financial position. A project codenamed the XJ41/42 (41 for the coupé, 42 for the convertible) was already in development stage in the company, mooted to be called the F-Type when completed and was designed by Keith Helfet. When American automobile manufacturer Ford acquired both Jaguar and Aston Martin, the new management cancelled the XJ41/42 project in 1990 because of
5568-534: The XJS' potential after driving it in the European Touring Car Championship in the late 1970s and early 1980s and wanted to re-body the car so it would have more modern styling. He initially wanted to engage Peter Stevens to design such a car but he refused due to his on going projects at the time. Walkinshaw then engaged Ian Callum, who was new in the car design work at the time, to design the car. Jaguar had been struggling to replace
5664-525: The application. The six pistons with six unique phases cannot be "paired" as in the four-stroke case. The Detroit engines used a configuration that, once the primary rocking couple was balanced out, was also perfectly balanced at all other rocking couples until the 6th order. Mercury came to use a configuration that canceled only the primary rocking couple and was run without a balancer. The reciprocating masses of all configurations are still imbalanced at only 6th-order and up in their plane of motion. Still,
5760-465: The balance of kinetic energy exchange between pistons has improved to a residual 6th-order-and-up inertial torque oscillation compared with the four-stroke design being imbalanced at 3rd-order and up. Crankshafts for straight-six engines usually have either four main bearings (i.e., a bearing in between each pair of crankpins and one at each end) or seven main bearings (i.e., a bearing between every crankpin): The first production straight-six engine
5856-436: The bodies of their cars, and models introduced after the DB7 use aluminium for the chassis as well as for many major body parts). The convertible Volante version was unveiled at the North American International Auto Show held in Detroit in 1996. Both versions initially had a supercharged straight-six engine that has a power output of 340 PS (250 kW; 335 hp) and 361 lb⋅ft (489 N⋅m) of torque. In
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#17327913967375952-415: The boot infill panel models. A "sport" one on the front within its own unique XJR grill. In this unique grill a "sport" badge was installed. Interior even had XJR specific wood (SPB part number). Total XJ40 cars built was 208,733 and supposedly 500 JaguarSport cars built, 200 of the round headlight versions and then about 300 with the square headlights like the Sovereigns and Daimler's. 1990+ XJR power output
6048-499: The car's heavier weight than the XJS, the project's high budget and also the employee overtime spent on the car. Seeing the potential of the abandoned project, Walkinshaw based his concept on the XJ41 and tasked Ian Callum to design his envisioned body around the XJ41. He presented the completed car to Jaguar's management who rejected it. Due to the development of the Jaguar XJ220 , Ford had not been very keen on development of new Aston Martin models, considering high development costs and
6144-424: The headlamps along with "DB7 Vantage" badging at the rear. After the launch of the Vantage, sales of the base DB7 with the supercharged straight-6 engine had reduced considerably so its production ended by mid-1999. In 2002, a new variant was launched, named V12 GT or V12 GTA when equipped with an automatic transmission (the A referring to the automatic transmission itself). It was essentially an improved version of
6240-428: The manual gearbox or 266 km/h (165 mph) with the automatic gearbox, and could accelerate from 0–97 km/h (60 mph) in 4.9 seconds. The V12 Vantage is 4,692 mm (184.7 in) long, 1,830 mm (72.0 in) wide, 1,243 mm (48.9 in) high, with a weight of 1,800 kg (3,968.3 lb). Aesthetic differences from the straight-6 DB7 include different wing mirrors and large fog lamps under
6336-471: The market in the wake of the 1990s economic downturn. Aston Martin CEO at the time, Walter Hayes approached Walkinshaw as he had seen the potential in Walkinshaw's proposition to succeed. Development started with a project name of XX. Ian Callum was again tasked to redesign the car so it would look like an Aston Martin. Due to a limited financial backing at the time, the final product shared many components from other marques owned by Ford. The tail lights came from
6432-414: The rear wheels via a 6-speed manual transmission or an optional 5-speed automatic. It featured upgraded suspension and brakes as well It has a top speed of 186 mph (299 km/h) and a 0–60 mph acceleration time of 4.9 seconds. Unlike the later DB AR1, the Zagato is built on a shortened chassis that has a 60 mm (2 in) shorter wheelbase and is 211 mm (8 in) shorter overall. It
6528-413: The seats when not in use. The DB AR1 uses the 5.9 litre, 48-valve, V12 engine from the DB7 producing 435 bhp (324 kW; 441 PS) at 6000 rpm and 410 lb⋅ft (556 N⋅m) of torque at 5000 rpm. It has a top speed of 185 mph (298 km/h) and a 0–60 mph (97 km/h) acceleration time of 4.9 seconds. Aston Martin planned on a gentleman's racer programme featuring
6624-567: The then chief designer of Aston Martin Henrik Fisker and features the signature 'double-bubble' Zagato roofline. Other features include a unique Analine leather interior not found on the normal DB7 and Zagato styled five-spoke alloy wheels. The car was only available in the UK, Europe and Southeast Asia. Like the DB7 Vantage on which it is based, the DB7 Zagato is powered by a 6.0 L V12 engine that has been tuned to now produce 441 PS (324 kW; 435 hp) at 6,000 rpm and 410 lb⋅ft (556 N⋅m) of torque at 5,000 rpm. Power goes to
6720-416: The time of this vehicle's manufacture. The difference between Ford locks and the ones fitted to the DB7 is the fact the DB7 utilises 8 discs rather than 6, hence the key blade and the lock barrel is longer. Jaguar vehicles also used the 8 disc Tibbe locks. An alternate DB7 proposal was considered in 1991 to develop a 6-cylinder platform from the Escort RS Cosworth's 4x4 system. On 1 January 1993, Jac Nasser
6816-415: The upgraded 3L engine with the old style body-kits, and appearance changers. XJR 1.0Ls from 1990 on had all of the XJR 3.6 handling upgrades and benefits from engine enhancements such as high lift cams, improved double plenum inlet manifold, and a compression ratio of 9.75:1. They were sent to TWR in Coventry to be modified directly after being produced. The exterior changed again for the last generation of
6912-400: Was appointed the new chairman of Ford Europe. He presented the finished car, which had yet to be named, to the general public at the 1993 Geneva Motor Show . Due to the positive and overwhelming reception, the car was put into production as the Aston Martin DB7. The positive response also prompted Jaguar to use the platform for the XJS' successor. The car was redesigned by Geoff Lawson and
7008-609: Was designed by Ian Callum and Keith Helfet as a grand tourer in coupé and convertible bodystyles. The prototype was complete by November 1992 and debuted at the Geneva Motor Show in March 1993. The six-cylinder DB7 (based on the Jaguar AJ6 engine) was positioned as an "entry-level" model below the hand-built V8 Virage introduced a few years earlier. This model was the most-produced Aston Martin automobile up to that point in time, with more than 7,000 built before it
7104-469: Was followed by an IOE version in 1916. The 1951 Hudson Hornet introduced a 308 cu in (5.0 L) flathead straight-six engine. These engines dominated dirt track and NASCAR racing at the time. Production of the Hudson I6 continued after the 1954 merger forming American Motors Corporation and was eventually replaced by a new Rambler V8 after 1956. In 1924, Chrysler began production of
7200-589: Was followed by the AJ6 and AJ16 engines, produced from 1984 to 1996, before being replaced by a Ford-derived V6 engine. The 1948–1959 Lagonda straight-6 dual overhead camshaft petrol engine was used in various Aston Martin and Lagonda cars. This engine's successor was the Tadek Marek-designed straight-six used in the DB4 (1958), DB5 (1963), DB6 (1965) and DBS (1967). The Ford Zephyr 6 overhead valve engine
7296-412: Was followed by the 1962–1988 Chevrolet Turbo-Thrift engine (also using an overhead valve design), which was replaced by various General Motors V6 engines. The 1952 through 2006 AMC Straight-6 petrol engine initially used a flathead design before being upgraded to an overhead valve design in 1956. A new I6 design with a short stroke and seven main bearing crankshaft was introduced in 1964. The engine
7392-423: Was followed by the first generation Toyota F overhead valve engine, which was produced from 1949 to 1975, which in turn was followed by the 2F version from 1975 to 1988 and the fuel-injected 3F / 3FE version from 1988 to 1992. This was replaced by the dual overhead camshaft Toyota FZ engine , produced from 1993 until 2008. Produced alongside these engines was the single overhead camshaft Toyota M engine , which
7488-419: Was generally considered somewhat underpowered for such a large car, was discontinued in late 1990 and replaced with a DOHC 3.2 (essentially identical to the DOHC 4.0). The 2.9 Engine was, as in earlier years the 2.8 XK-engine, sized to match road-tax regulations in some European Countries like Italy or France. In France cars with more than 3 litres of engine size had to pay a luxury tax. Unlike all other AJ6's,
7584-651: Was introduced at the Pebble Beach Concours d'Elegance in August 2002 and later shown at the Paris Motor Show the following October. It was only offered for the 2003 model year, with a limited run of 99 cars built (a 100th car was produced for the Aston Martin museum), all of which immediately sold out. The car has a steel body designed in collaboration between Andrea Zagato at Zagato and
7680-531: Was introduced in 1929 as a replacement for the brand's straight-four engines and was produced in displacements of 181 cu in (3.0 L), 194 cu in (3.2 L) and 207 cu in (3.4 L). The second generation of this engine family - often referred to as the Blue Flame engine - was produced from 1937 to 1962 in displacements of 216 cu in (3.5 L), 235 cu in (3.9 L) and 261 cu in (4.3 L). This
7776-696: Was introduced in 1962, powered by the American Chrysler Slant 6 . In 1970, the Valiant switched to the Chrysler Hemi-6 overhead valve engine, an Australia-only engine that was produced until Chrysler Australia ceased production of large cars in 1981. Aston Martin DB7 The Aston Martin DB7 is a car that was produced by British luxury car manufacturer Aston Martin from September 1994 to December 2004. It
7872-407: Was introduced in 1965 and produced over seven generations until 1993 (with the 7M-GTE being the final version of the M engine). The M engine was replaced by the dual overhead camshaft Toyota JZ engine , which was produced from 1990 to 2007 and is arguably known as Toyota's best straight-six engine. Toyota's third line of straight-six engines was the 2.0 L Toyota G engine , which was released as
7968-670: Was introduced in the Willys Jeep Station Wagon . At the time of its introduction, the Tornado engine had the lowest specific fuel consumption of an American gasoline (petrol) engine. The Tornado engine was replaced by the AMC I6 engine. In 2001, General Motors resumed production of straight-six engines with the Vortec 4200 dual overhead camshaft petrol engine. This engine was used in various SUV models until 2009. Also,
8064-647: Was introduced in the Dutch Spyker 60 HP racing car in 1903. Straight-six engines increased in popularity in the years after and by 1909, approximately 80 manufacturers were using them (including 62 in the United Kingdom). Prior to the 1950s, V6 engines were rarely used, due to the poorer engine balance of V6 engines compared to straight-six engines. Since the 1980s, however, the shorter length of V6 engines has seen most manufacturers replace straight-six engines with V6 engines. An exception to this trend
8160-636: Was launched in the market as the Jaguar XK which uses an evolution of the XJS platform (called the X100 by Jaguar) and the cars share a family resemblance, although the DB7 was more expensive than the XK. The DB7 was engineered in Kidlington, Oxfordshire, by TWR on behalf of Aston Martin. The engines continued to be built in Kidlington during the production run of the vehicle. With the production of
8256-527: Was powered by a 1.3-1.6 L overhead camshaft straight-six petrol engine. The 1931–1932 MG F-type tourers, 1932–1934 MG K-type sports cars, and 1934–1936 MG N-type sports cars were powered by an overhead camshaft straight-six petrol engine. During the mid-1930s, the Riley MPH sports car and Riley Kestrel 6 saloon were produced in small numbers and were powered by dual overhead camshaft straight-six petrol engine. The 1947 Bristol 400 luxury car
8352-613: Was powered by an overhead valve straight-six petrol engine based on the design of the BMW M328 engine. This engine remained in use until the Bristol 406 was discontinued in 1961. The dual overhead camshaft Jaguar XK6 engine petrol engine was produced from 1948 to 1992 in the Jaguar XK120 sports car. Introduced as a 3.4 L, it was used in passenger and racing cars, produced in displacements of 2.4 to 4.2 L. The XK6 engine
8448-573: Was powered by the Daewoo XK6 straight-six petrol engine, which is one of the few straight-six engines to be used in a transverse engine front-wheel drive car. From the 1950s to the 2010s, many cars produced in Australia were powered by a straight-six engine. Holden's first car, the 1948 Holden 48-215 sedan, was powered by the Holden 'grey' motor , an overhead valve petrol engine. This engine
8544-419: Was replaced by Chevrolet's straight-six engine and Buick's V6 engine. a The overhead valve Buick Straight-6 petrol engine was introduced in the 1914 Buick Six luxury car and was produced until 1930. Buick did not make another six-cylinder engine until they introduced a V6 engine in 1962. The 1916 through 1926 Hudson Super Six was powered by a 289 cu in (4.7 L) straight-six petrol engine. This
8640-605: Was replaced by the Austin D-Series engine , an overhead valve engine initially designed for trucks, which was used in passenger cars from 1947 until 1968 (along with several Jensen Motors models from 1946 to 1962). The overhead valve BMC C-Series was used by various BMC brands from 1954 to 1971, followed by the 2.2 L version of the BMC E-Series overhead camshaft engine, which was produced from 1970 until 1982. The 1930–1936 Wolseley Hornet six lightweight car
8736-732: Was replaced by the DB9 in 2004. The DB7, known internally as the XX project , was made mostly with resources from Jaguar Cars and had the financial backing of the Ford Motor Company , owner of Aston Martin from 1988 to 2007. The DB7's platform is an evolution of the Jaguar XJS platform, though with many changes. The DB7 began life as a successor to the Jaguar XJS envisioned by Tom Walkinshaw of TWR . Walkinshaw had been impressed by
8832-532: Was replaced by the Holden 'red' motor , which was produced from 1963 to 1980 and in turn followed by the 1980–1984 Holden 'blue' motor . The final locally produced Holden straight-six was the 1984–1986 Holden 'black' motor , which was initially replaced by the Japanese-built Nissan RB30 engine before Holden switched to a locally-built V6 engine. Ford produced straight-six engines for the longest time of any Australian manufacturer. In 1960,
8928-479: Was replaced by the 1906–1926 Rolls-Royce Silver Ghost , which switched to a flathead (side-valve) design for its straight-six engine. In 1906, the Standard Six luxury car was introduced, powered by a 20 hp (15 kW; 20 PS) I6 petrol engine. Standard's engines were also used in several cars built by SS Cars and its successor Jaguar, such as the 1932 SS 1 sports car, the 1936 SS Jaguar 100 and
9024-467: Was rugged, reliable, and became noted for longevity. A turbocharged racing engine based on the AMC Straight-6 engine block produced 875 hp (652 kW) and competed in the 1978 Indianapolis 500 race. The final application for the AMC Straight-6 engine was the 2006 Jeep Wrangler (TJ) , after which a V6 replaced it. The 1962 through 1973 Jeep Tornado overhead camshaft straight-six engine
9120-575: Was used in several of the company's sports cars. The 1906–1908 Ford Model K luxury car used a 405 cu in (6.6 L) straight-six petrol engine and was the only Ford six-cylinder passenger car engine until the 1940s. The Ford flathead I6 was produced from 1941 until 1951, followed by the Ford OHV I6 overhead valve engine from 1952 through 1964, then the Ford Thriftpower Six overhead valve engine from 1960 until 1982, and
9216-742: Was used in the Ford Zephyr executive car and several other models from 1951 to 1966. The Triumph I6 overhead valve straight-six petrol engine was produced from 1960 to 1977 and debuted in the Standard Vanguard Six sports saloon. The Leyland PE166 engine was loosely based on the Triumph design and was produced from 1977 to 1986. The 1972–1977 TVR 2500M sports car was powered by the Triumph I6 engine. Then, from 1999 to 2007, TVR's own TVR Speed Six dual overhead camshaft engine
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