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Alfa Romeo Twin Cam Engine

 
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Alfa Romeo Twin Cam engine
 
 
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The all alloy Alfa Romeo Twin Cam engine series was an inline-4 cylinder engine produced by Alfa Romeo
Alfa Romeo

Alfa Romeo Automobiles S.p.A. is an Italian automaker founded on 24 June 1910 in Milan. Alfa Romeo has been a part of the Fiat Group since 1986....
 from 1954 to 1994. For earlier Alfa Romeo engines featuring twin camshafts, refer to the main Alfa Romeo
Alfa Romeo

Alfa Romeo Automobiles S.p.A. is an Italian automaker founded on 24 June 1910 in Milan. Alfa Romeo has been a part of the Fiat Group since 1986....
 page. For the later 16-valve Twin Spark engines which also feature twin camshafts, and are based on a Fiat
Fiat

Fiat S.p.A. Fiat based cars are constructed all around the world?the largest concern outside Italy is in Brazil . It also has factories in Argentina and Poland....
 designed engine block, please refer to the Alfa Romeo Twin Spark engine
Alfa Romeo Twin Spark engine

Alfa Romeo Twin Spark technology was used first time in Alfa Romeo Grand Prix car in 1914. In the early 1960s it was used their race cars to enable it to achieve a higher power output from its engines....
 page.

Alfa Romeo Twin Cam engine was introduced in the 1290 cc Giulietta
Alfa Romeo Giulietta

The Alfa Romeo Giulietta was a subcompact automobile manufactured by the Italy car maker Alfa Romeo from 1954 to 1965.The first Giulietta model was a coup?, the Giulietta Sprint, introduced in late 1954....
 of 1954.






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The all alloy Alfa Romeo Twin Cam engine series was an inline-4 cylinder engine produced by Alfa Romeo
Alfa Romeo

Alfa Romeo Automobiles S.p.A. is an Italian automaker founded on 24 June 1910 in Milan. Alfa Romeo has been a part of the Fiat Group since 1986....
 from 1954 to 1994. For earlier Alfa Romeo engines featuring twin camshafts, refer to the main Alfa Romeo
Alfa Romeo

Alfa Romeo Automobiles S.p.A. is an Italian automaker founded on 24 June 1910 in Milan. Alfa Romeo has been a part of the Fiat Group since 1986....
 page. For the later 16-valve Twin Spark engines which also feature twin camshafts, and are based on a Fiat
Fiat

Fiat S.p.A. Fiat based cars are constructed all around the world?the largest concern outside Italy is in Brazil . It also has factories in Argentina and Poland....
 designed engine block, please refer to the Alfa Romeo Twin Spark engine
Alfa Romeo Twin Spark engine

Alfa Romeo Twin Spark technology was used first time in Alfa Romeo Grand Prix car in 1914. In the early 1960s it was used their race cars to enable it to achieve a higher power output from its engines....
 page.

History

The Alfa Romeo Twin Cam engine was introduced in the 1290 cc Giulietta
Alfa Romeo Giulietta

The Alfa Romeo Giulietta was a subcompact automobile manufactured by the Italy car maker Alfa Romeo from 1954 to 1965.The first Giulietta model was a coup?, the Giulietta Sprint, introduced in late 1954....
 of 1954. The features of the Giulietta engine included:

  • Aluminium
    Aluminium

    Aluminium or aluminum is a silvery white and ductile member of the boron group of chemical elements. It has the symbol Al; its atomic number is 13....
     alloy
    Alloy

    An alloy is a partial or complete solid solution of one or more chemical element in a metallic matrix. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may be homogeneous in distribution depending on thermal history....
     engine block with cast-iron cylinder liners
  • Aluminium alloy cylinder head with hemispherical
    Sphere

    A sphere is a symmetrical geometrical object. In non-mathematical usage, the term is used to refer either to a round ball or to its two-dimensional surface....
     combustion
    Combustion

    Combustion or burning is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames, appearance of light flickering....
     chambers
  • Forged steel
    Steel

    Steel is an alloy consisting mostly of iron, with a carbon content between 0.2% and 2.14% by weight , depending on grade. Carbon is the most cost-effective alloying material for iron, but various other alloying elements are used such as manganese, chromium, vanadium, and tungsten....
     crankshaft
    Crankshaft

    The crankshaft, sometimes casually abbreviated to crank , is the part of an engine which translates reciprocation linear piston motion into rotation....
     running in five main bearing
    Main bearing

    In a piston engine, the main bearings are the Bearing on which the crankshaft rotates, usually Plain bearing or journal bearings.All engines have a minimum of two main bearings, one at each end of the crankshaft, and they may have as many as one more than the number of crank pins....
    s
  • Double overhead camshafts driven by a double row timing chain
  • Camshafts directly actuate valves via bucket tappets
  • Two inclined valves per cylinder with near central located spark plug
    Spark plug

    A spark plug is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed Particulate gasoline by means of an electric spark....
  • Inlet and exhaust valves separated by an angle of 80 degrees


This made the Alfa Romeo Twin Cam engine an advanced design for a production car of the mid 1950s. These design features, with minor variations, would form the basis of all future versions of the engine. The capacity was increased to 1570 cc with the introduction of the Giulia
Alfa Romeo Giulia

The Alfa Romeo Giulia is an Alfa Romeo automobile. Alfa was one of the first manufacturers to put a powerful engine in a light-weight car for mainstream production....
 in 1962. Racing versions of the Giulia engine, include the twin plug engine used in the GTA
Alfa Romeo GTA

The Alfa Romeo GTA is a coup? automobile manufactured by the Italy manufacturer Alfa Romeo from 1965 to 1971. It was made for racing and road use....
 which featured a cylinder head with two spark plugs per cylinder.

The twin cam engine was later increased to 1779 cc for the 1750 GTV and Berlina in 1968. The 1962 cc engine was introduced in 1971 for the 2000 GTV and Berlina 2000. Twin spark plug versions of the 1750 and 2000 were used for racing and there were a limited number of racing engines fitted with a 16 valve cylinder head.

In 1986, a turbocharged version of the 1779 cc single plug engine was fitted to the Alfa Romeo 75
Alfa Romeo 75

The Alfa Romeo 75, sold in North America as the Milano, was a compact car sports sedan / compact executive car produced by the Italy automaker Alfa Romeo between 1985 and 1992....
, providing in standard form and a potential for a power output of in Group A
Group A

In relation to motorsport governed by the F?d?ration Internationale de l'Automobile, Group A referred to a set of regulations providing production-derived vehicles for outright competition....
 touring car racing
Touring car racing

Touring car racing is a general term for a number of distinct auto racing competitions in heavily-modified street cars. It is notably popular in United Kingdom, Germany, Scandinavia, and Australia....
 form.

In 1987, the Alfa Romeo 75
Alfa Romeo 75

The Alfa Romeo 75, sold in North America as the Milano, was a compact car sports sedan / compact executive car produced by the Italy automaker Alfa Romeo between 1985 and 1992....
 was fitted with a twin spark plug per cylinder head design, which provides improved fuel ignition and allows an improved combustion chamber shape with narrower angle between intake and exhaust valve. This was combined with variable valve timing
Variable valve timing

Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift, duration or timing of the intake or exhaust Poppet valve to be changed while the engine is in operation....
 and electronic fuel injection to give a power output of .

The last examples of this engine are the pre 1994 1590 cc, 1750 cc and 1995 cc 8V Twinspark engines featured in the 145
Alfa Romeo 145

The Alfa Romeo 145 and 146 is a small family car produced by the Italy automaker Alfa Romeo between 1994 and 2001, it was launched at the 1994 Turin Motor Show....
, 146, 155
Alfa Romeo 155

The Alfa Romeo 155 is a compact executive car produced under the Italy Alfa Romeo marque between 1992 and 1998....
 and 164
Alfa Romeo 164

The Alfa Romeo 164 was an executive car with sedan body, produced by the Italy automaker Alfa Romeo from 1988 to 1997.The 164 was re-badged as the 168 for the Hong Kong and Malaysian markets, as the number "164" had a very negative connotation , and "168" has quite the opposite ....
. Post-1994 versions of these models featured the 16-valve Twinspark, which although sharing features with the previous engine, is a new design.

Production of the Alfa Romeo Twin Cam ended in 1994, by which time it had been superseded by the newer 16 valve Twin Spark
Alfa Romeo Twin Spark engine

Alfa Romeo Twin Spark technology was used first time in Alfa Romeo Grand Prix car in 1914. In the early 1960s it was used their race cars to enable it to achieve a higher power output from its engines....
 engine.

Applications

  • Alfa Romeo Disco Volante
    Alfa Romeo Disco Volante

    The Alfa Romeo Disco Volante was a concept car series with production starting from 1952. The cars were racing car concepts with mechanics from the Alfa Romeo 1900 and made in collaboration with Milan based coachbuilder Carrozzeria Touring....
  • Alfa Romeo Giulietta
    Alfa Romeo Giulietta

    The Alfa Romeo Giulietta was a subcompact automobile manufactured by the Italy car maker Alfa Romeo from 1954 to 1965.The first Giulietta model was a coup?, the Giulietta Sprint, introduced in late 1954....
  • Alfa Romeo Giulia
    Alfa Romeo Giulia

    The Alfa Romeo Giulia is an Alfa Romeo automobile. Alfa was one of the first manufacturers to put a powerful engine in a light-weight car for mainstream production....
  • Alfa Romeo Spider
    Alfa Romeo Spider

    The Alfa Romeo Spider is a roadster produced by the Italy manufacturer Alfa Romeo from 1966 to 1993 .Widely regarded as a design classic, it remained in production for almost three decades with only minor aesthetic and mechanical changes....
  • Alfa Romeo GTA
    Alfa Romeo GTA

    The Alfa Romeo GTA is a coup? automobile manufactured by the Italy manufacturer Alfa Romeo from 1965 to 1971. It was made for racing and road use....
  • Alfa Romeo TZ
  • Alfa Romeo Gran Sport Quattroruote
    Alfa Romeo Gran Sport Quattroruote

    The Alfa Romeo Gran Sport Quattroruote is a two-seater roadster constructed between 1965 and 1967 by the Italian car manufacturer Alfa Romeo. The car is a "retro" replica of the 1930s Alfa Romeo 6C#6C 1750 model , and was inspired by an article published in the Milan-based car magazine Quattroruote....
  • Alfa Romeo Giulietta (Nuova)
    Alfa Romeo Giulietta (nuova)

    The Alfa Romeo Giulietta is an automobile manufactured by the Italy car maker Alfa Romeo. The car was introduced in 1977 and while it took its name from the original Alfa Romeo Giulietta of 1954 to 1965, it was a new design based on the Alfa Romeo Alfetta chassis ....
  • Alfa Romeo 75
    Alfa Romeo 75

    The Alfa Romeo 75, sold in North America as the Milano, was a compact car sports sedan / compact executive car produced by the Italy automaker Alfa Romeo between 1985 and 1992....
  • Alfa Romeo 1750
    Alfa Romeo 1750

    The Alfa Romeo 1750/2000 was a medium-priced range of cars presented in 1967 by Alfa Romeo.The 1750 Berlina sedan was introduced in 1967, together with the Alfa Romeo Sprint GT coupe and Alfa Romeo Spider....
  • Alfa Romeo 2000
    Alfa Romeo 2000

    Alfa Romeo 2000 is a car produced by the Italy automobile manufacturing company Alfa Romeo as a successor to the Alfa Romeo 1900.First shown in 1957 on the Turin autosalon, the car was produced in two models, the Berlina with and the Spider with since 1958....
  • Alfa Romeo Alfetta
    Alfa Romeo Alfetta

    The Alfa Romeo Alfetta is a rear-wheel drive executive saloon car and fastback coup? produced from 1972 until 1987 by Alfa Romeo. It was popular due to its combination of a modest design with powerful engines, selling over 400,000 units until the end of its production run, but in the final years its sales were down due to Alfa Romeo's reliabi...
  • Alfa Romeo 90
    Alfa Romeo 90

    The Alfa Romeo 90 is an executive car produced by the Italy automaker Alfa Romeo between 1984 and 1987.Designed by Bertone and introduced at the 1984 Turin Motor Show, the 90 was pitched between the Alfa Romeo Alfetta and the Alfa Romeo Alfa 6, both of which were soon discontinued after the 90's launch....
  • Alfa Romeo 164
    Alfa Romeo 164

    The Alfa Romeo 164 was an executive car with sedan body, produced by the Italy automaker Alfa Romeo from 1988 to 1997.The 164 was re-badged as the 168 for the Hong Kong and Malaysian markets, as the number "164" had a very negative connotation , and "168" has quite the opposite ....
     (early 8V T/spark, modified cyl. head)
  • Alfa Romeo 155
    Alfa Romeo 155

    The Alfa Romeo 155 is a compact executive car produced under the Italy Alfa Romeo marque between 1992 and 1998....
     (early 8V T/spark, modified cyl. head)
  • Alfa Romeo 145
    Alfa Romeo 145

    The Alfa Romeo 145 and 146 is a small family car produced by the Italy automaker Alfa Romeo between 1994 and 2001, it was launched at the 1994 Turin Motor Show....
     (early 8V T/spark, modified cyl. head)
  • Alfa Romeo 146 (early 8V T/spark, modified cyl. head)


See also

  • Double overhead cam
  • Fiat Twin Cam engine
    Fiat Twin Cam engine

    Designed by Aurelio Lampredi the Fiat Twin Cam was an advanced inline-4 automobile engine produced from 1959 through 1994 as a Fiat/Lancia engine until it was replaced by the "family B" series of engines....