Volvo version of the PRV engine

The PRV engine is an automobile petrol V6 engine that was developed jointly by Peugeot, Renault and Volvo Cars and sold from 1974 to 1998. It was gradually replaced after 1994 by another joint PSA-Renault design known as the ES engine at PSA and the L engine at Renault. Car redirects here. ... The Ford Essex V6 engine V6 and V-6 redirect here. ... For other uses, see Engine (disambiguation). ... Peugeot is a major French car brand, part of PSA Peugeot Citroën. ... For the author, see Mary Renault. ... Volvo Cars, or Volvo Personvagnar, is a well-known Swedish automobile maker founded in 1927 in the city of Gothenburg in Sweden. ... The PSA Peugeot Citroën Group (in French, Groupe PSA) is a vehicle company that owns the marques Peugeot and Citroën. ... For the author, see Mary Renault. ... The PSA ES engine is a V6 engine used in automotive applications. ... The PSA Peugeot Citroën Group (in French, Groupe PSA) is a vehicle company that owns the marques Peugeot and Citroën. ... The PSA ES engine is a V6 engine used in automotive applications. ... For the author, see Mary Renault. ...

Corporate history

The PRV story begins in 1966 when Peugeot and Renault entered a cooperative agreement to manufacture common components. The first joint subsidiary, La Française de Mécanique (also called Compagnie Française de Mécanique or simply FM) was launched in 1969. The FM factory was built in Douvrin near Lens in northern France. The PRV engines are sometimes referred to as "Douvrin" engines, though that name is more-commonly applied to a family of straight-4s produced at the same time. Douvrin is a commune of northern France. ... Lens is commune in northern France, in the Pas-de-Calais département. ... The Douvrin family was an all-aluminum straight-4 automobile engine made in a joint-venture between Peugeot and Renault in the 1970s. ...

In 1971, Volvo joined Peugeot and Renault in the creation of the PRV company, a PLC in which each of the three manufacturers owned an equal portion. The company originally planned to build V8 engines, although these were later scrapped in favor of a smaller and more fuel efficient V6. The initials PLC after a UK or Irish company name indicate that it is a public limited company, a type of limited company whose shares may be offered for sale to the public. ... The Liberty V8 aircraft engine clearly shows the configuration A V8 engine is a V engine with eight cylinders. ... Fuel efficiency, in its basic sense, is the same as thermal efficiency, meaning the efficiency of a process that converts energy contained in a carrier fuel into energy or work. ...

The PRV engine could be seen as a V8 with two missing cylinders, having a 90 degree angle between cylinder banks, rather than the customary 60, but with crankpins being 120 degrees apart. The Maserati V6 of the Citroën SM followed a remarkably similar pattern of development. A 1957 Maserati 200SI at the Scarsdale Concours Maserati Birdcage 1959 Maserati 5000 GT Coupe Maserati Sebring This article is about the automobile manufacturer. ... Vestigal chrome fins betray American styling cues The Citroën SM was a high performance coupé produced by the French manufacturer Citroën between 1970 and 1975. ...

The 1973 energy crisis and taxes levied against engine displacement greater than 2.8 L made large V8 engines somewhat undesirable and expanded the market for smaller engines. (Redirected from 1973 energy crisis) United States, drivers of vehicles with odd numbered license plates were allowed to purchase gasoline only on odd-numbered days of the month, while drivers with even-numbers were limited to even-numbered days. ... One complete cycle of a four cylinder, four stroke engine. ...

Additionally, Renault needed a V6 engine to fit in its new model, the Renault 30. The Renault 20 and Renault 30 are two executive cars produced by the French automaker Renault between 1975 and 1984. ...

Machinery for assembling the engines arrived at Douvrin in early June of 1973 and buildings for producing the engines were finished in January of 1974. The first PRV engines were officially introduced on October 3, 1974 in the Volvo 264. Adoption was swift, and the PRV V6 had been sold in at least five different models by the end of 1975. is the 276th day of the year (277th in leap years) in the Gregorian calendar. ... Year 1974 (MCMLXXIV) was a common year starting on Tuesday (link will display full calendar) of the 1974 Gregorian calendar. ... European-market 1977 244 GL with aftermarket wheel covers 245 with North American-market 1976-1980 quad round sealed beam headlamp configuration 240 GLE with North American-market 1980-1985 quad rectangular sealed beam headlamp configuration 1979-80 242GT North American-spec 1990-93 240DL The Volvo 200 series was...

In 1984, the first commercially available turbocharged PRV V6 was sold in the Renault 25 V6 Turbo. This was the first to be even-fire with split crankpins and was the first of the second generation, and indeed EFI engine of any sort. Turbocharged versions went on to be used in the Renault Alpine GTA V6 Turbo (essentially the same engine as the 25 Turbo at 2458 cm³), Renault Alpine A610 and Renault Safrane Bi-turbo - both with 2963 cc low compression. Naturally aspirated 2963 cc and 2975 cc versions of both low and high compresson 3 litre engines appeared in a number of Peugeot, Citroen and Renault cars until 1997. Air foil bearing-supported turbocharger cutaway made by Mohawk Innovative Technology Inc. ... The Renault 25 is an executive car produced by the French automaker Renault from 1983 to 1992. ... The firing order is the sequence of sparking of the spark plugs in a reciprocating engine, or the sequence of fuel injection in each cylinder in a Diesel engine. ... Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black) Continental engine marine crankshafts, 1942 Components of a typical, four stroke cycle, DOHC piston engine. ...

While Renault were working forced induction into the PRV, Peugeot and Citroen developed their own 24v engines as an option in the 605 and XM respectively. The compression remained the same as the Renault 12v but the pistons differed, as did some of the timing gear, and the heads were re-engineered to allow easier maintenance (the cam being fitted from the opposite end for example). This engine was however extremely expensive and suffered cam wear problems. This was down to the exhaust valves sharing a single lobe, while inlet valves had a lobe each. This was at least partially solved by the use of ceramic followers as one of a succession of recalls. The camshaft is an apparatus used in piston engines to operate poppet valves. ... For the fictional characters of the same name, see Camshaft (Transformers). ... A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. ...

Meanwhile, French supercar manufacturer Venturi had been developing their own versions of the PRV. The most powerful versions they built were in the Atlantique 300 at 281 PS (207 kW) from a single turbocharged 3 litre 12v, and they successfully raced at the 24 Hours of Le Mans with the 600LM with a twin turbocharged 24v 3.0 L pushing out over 600 hp (over 450 kW) in race spec, and the road-going spin-off, the 400GT managed 408 PS (300 kW). This used the low compression bottom end common to the Renault turbo engines, coupled to 24 valve cylinder heads with bespoke rockers and tappets. VENTURI or Venturi Automobiles is a French manufacturer of sports cars born under the name of MVS (Manufacture de Voitures de Sport / sport car manufacture). ... The 24 Hours of Le Mans (24 Heures du Mans) is the worlds most famous sports car endurance race, held annually at Circuit de la Sarthe near Le Mans, France, in the French Sarthe département. ... The cylinder head from a GMC van. ...

Peugeot too allowed a small group of engineers to create a team for endurance racing and after a few years the team grew to be called WM Peugeot. The ultimate version of the car used a low compression 3.0 L bottom end coupled to bespoke twin-cam heads. It is the only DOHC PRV. This car still holds the top speed record at 24 Hours of Le Mans, but this was achieved only as a short-lived PR stunt, done by taping up the cooling intakes and sacrificing the engine after a very short time. Endurance racing can refer to races involving persons running in events such as marathons or triathlons, long cross-country skiing events, the racing of horses or other animals, or motorsport. ... The 24 Hours of Le Mans (24 Heures du Mans) is the worlds most famous sports car endurance race, held annually at Circuit de la Sarthe near Le Mans, France, in the French Sarthe département. ...

Volvo began to withdraw from the PRV consortium in the late 1980s, shifting its powerplant reliance onto in-house inline engines. Peugeot, Renault and Citroën continued using the PRV until 1997. Usually found in 4 and 6 cylinder configurations, the straight engine (often designed as inline engine) is an internal-combustion engine with all cylinders aligned in one row, with no or only minimal offset. ... Peugeot is a major French car brand, part of PSA Peugeot Citroën. ... For the author, see Mary Renault. ... Citroën is a French automobile manufacturer, founded in 1919 by André Citroën. ...

After producing 970,315 units, production of the PRV V6 was stopped on June 15, 1998. is the 166th day of the year (167th in leap years) in the Gregorian calendar. ... Year 1998 (MCMXCVIII) was a common year starting on Thursday (link will display full 1998 Gregorian calendar). ...

Engineering

Ignition timing

The original engineering work done on the V8 can still be seen in the resulting V6: its cylinder banks are arranged at 90° instead of the much more common 60°. V8 engines nearly universally feature 90° configurations because this allows for a natural firing order. V6 engines, on the other hand, are generally arranged at 60° (again because of timing) but can be built as 90° engines with either staggered timing or split crankshaft journals. Piston engines are typically arranged with their pistons in rows, moving inside individual cylinders. ... The firing order is the sequence of sparking of the spark plugs in a reciprocating engine, or the sequence of fuel injection in each cylinder in a Diesel engine. ... Timing refers to how events are spaced in time. ...

First-generation PRV engines (1974-1985) featured uneven ignition timing. Second generation PRV engines (introduced in 1984 in the Renault 25 Turbo) featured split crankshaft journals and even ignition timing all electronically controlled. [1] Other similar design examples are the odd-fire and even-fire Buick V6 and the Maserati V6 seen in the Citroën SM. The Ford Essex V6 engine V6 and V-6 redirect here. ... The 3800 family is a large V6 engine used by General Motors. ... A 1957 Maserati 200SI at the Scarsdale Concours Maserati Birdcage 1959 Maserati 5000 GT Coupe Maserati Sebring This article is about the automobile manufacturer. ... Vestigal chrome fins betray American styling cues The Citroën SM was a high performance coupé produced by the French manufacturer Citroën between 1970 and 1975. ...

Specifications

• Power (DIN): 100 kW (134 hp) at 92 r/s (136 hp at 5,500 rpm) [2]
• Power (SAE): 97 kW (130 hp) at 92 r/s (130 hp at 5,500 rpm)
• Torque (DIN): 215 N·m (159 ft·lbf) at 48 r/s
• Torque (SAE): 208 N·m (153 ft·lbf) at 48 r/s (153 ft·lbf at 2,750 rpm)
• Compression ratio: 8.8:1
• Bore: 91 mm (3.6 in)
• Stroke: 73 mm (2.9 in)
• Displacement: 2,849 cm³
• Firing order: 1-6-3-5-2-4
• Weight: ~150 kg (331 lb)

PRV powered automobiles

PRV engine in a De Lorean

The dates following each entry denote the introduction of a PRV V6-equipped model-1... -1... The De Lorean DMC-12 is a sports car that was manufactured by the De Lorean Motor Company for the American market from 1981 to 1983 in Northern Ireland. ...

• Alpine A310 (October 1976)
• Alpine A610 (1991)
• Alpine GT/GTA (1984)
• Citroën XM (1989)
• De Lorean DMC-12 (1981-1983)
• Dodge Monaco (1990-1992)
• Eagle Premier (1988-1992)
• Helem V6
• Lancia Thema (1984)
• Peugeot 504 coupé/cabriolet (1974/1975)
• Peugeot 505 (July 1986)
• Peugeot 604 (March 1975)
• Peugeot 605 (1990)
• Peugeot P4
• Renault 25 (1984)
• Renault 30 (March 1975)
• Renault Espace
• Renault Laguna
• Renault Safrane
• Talbot Tagora (1980)
• Venturi (all models)
• Volvo 242GLT/6/244GLT/6/245GLT/6 (October 3, 1974)
• Volvo 262/262C/264/265 (October 3, 1974)
• Volvo 760 GLE (February 1982)
• Volvo 780 (1985)

The Alpine A310 was a sports car built by French manufacturer Alpine, from 1971 to 1984. ... The Renault Alpine GTA and Renault Alpine A610 were two successive versions of a coupe automobile produced by the Renault-owned French manufacturer Alpine between 1986 and 1995. ... The Citroën XM is an executive car that was produced by the French automaker Citroën between 1989 and 2000. ... The De Lorean DMC-12 is a sports car that was manufactured by the De Lorean Motor Company for the American market from 1981 to 1983 in Northern Ireland. ... The Dodge Monaco was a full-size automobile built and sold by the Dodge division of the Chrysler Corporation (now DaimlerChrysler) between 1965 to 1978 and 1990 to 1992. ... The Eagle Premier was an automobile developed by the American Motors Corporation (AMC) and Renault partnership. ... UK-spec Lancia Thema IE Turbo 1990 Wikimedia Commons has media related to: Lancia Thema The Lancia Thema is an executive car produced by the Italian automaker Lancia between 1985 and 1994, and was one of four cars to share the Type Four chassis alongside the Alfa Romeo 164, Fiat... Peugeot 504 saloon Peugeot 504 cabriolet The Peugeot 504 is a large family car produced by French automaker Peugeot between 1968 and 1983 in Europe. ... The Peugeot 505 was a full-size automobile produced by the French manufacturer Peugeot from 1978 to 1992. ... Wikimedia Commons has media related to: Peugeot 604 The Peugeot 604 was an executive car produced by the French manufacturer Peugeot from 1975 to 1985. ... Wikimedia Commons has media related to: Peugeot 605 The Peugeot 605 was an executive car produced by the French manufacturer Peugeot between 1989 and 1999. ... A P4 from a transportation unit (apparently recently returned from KFOR service) The P4 is a 4-wheel-drive unarmored light vehicle used by the Military of France. ... The Renault 25 is an executive car produced by the French automaker Renault from 1983 to 1992. ... The Renault 20 and Renault 30 are two executive cars produced by the French automaker Renault between 1975 and 1984. ... The Renault Espace is a large MPV produced by French automaker Renault since 1984 and manufactured in Matra factories. ... The Renault Laguna is a large family car produced by the French manufacturer Renault. ... Wikimedia Commons has media related to: Renault Safrane The Renault Safrane was an automobile designed and built by French manufacturer Renault from 1992 to 1998. ... The Talbot Tagora was an executive car developed by Chrysler Europe and produced by Peugeot Société Anonyme (PSA). ... VENTURI or Venturi Automobiles is a French manufacturer of sports cars born under the name of MVS (Manufacture de Voitures de Sport / sport car manufacture). ... is the 276th day of the year (277th in leap years) in the Gregorian calendar. ... Year 1974 (MCMLXXIV) was a common year starting on Tuesday (link will display full calendar) of the 1974 Gregorian calendar. ... is the 276th day of the year (277th in leap years) in the Gregorian calendar. ... Year 1974 (MCMLXXIV) was a common year starting on Tuesday (link will display full calendar) of the 1974 Gregorian calendar. ... A 1990 Volvo 760 Sedan The information in this article has been included verbatim in the Volvo 700 series article. ... Volvo 780 by Bertone The information in this article has been incorporated into the Volvo 700 series article. ...

PRV engines in racing

• Alpine A310 V6
• Fouquet buggies
• Peugeot 504 V6 Coupé
• Schlesser Original
• Venturi 400GTR and 600LM
• UMM Alter II
• WM Peugeot

External links

• The Douvrin V6 Resource Center provides a very detailed history of the PRV V6.
• Renault Alpine Owners Club provides specific information on Renault Alpine vehicles using the PRV V6.
• ART - Alpine Renault Tuning provides tuning and performance parts for Renault Alpines using the PRV V6 turbo and non turbo.
• Peugeot PRV Older but useful reference.