Difference between revisions of "Lancia Flat-4 engine"

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A '''flat-4''' is a four cylinder [[internal combustion engine]] where the cylinders are arranged in a [[flat engine|flat configuration]].  As of today Flat-4 engines are '''boxer engine''', also known as a '''horizontally opposed engine''', in which the corresponding pistons reach [[top dead centre]] simultaneously, thus balancing each other with respect to momentum. Flat engines with four or fewer cylinders are most commonly boxer engines.  This is not a common configuration, but some brands of [[automobile]] have favored such engines and it is a common configuration for smaller [[aircraft engine]]s such as made by [[Lycoming]] or [[Continental Motors|Continental]].  Although they are considered to be superior to
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[[Lancia]], known for their advanced engineering, surprised the auto world by designing a new aluminum [[flat-4]] engine for their 1961 [[Lancia Flavia|Flavia]].  Though it was a [[pushrod engine]], it was advanced for the time.  The pushrod version of the Lancia boxer was only ever used in the Flavia. In the mid 1970s, an overhead cam engine based on a similar layout was designed and brought into production in 2 and 2.5 litre forms fitted to the [[Lancia Gamma|Gamma]].   
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==1500==
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The original version was the 1.5 L (1488 cc) '''1500'''.
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==1800==
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The 1.8 L '''1800''' was introduced in the mid-1960s.  It used an 88mm bore and 74mm stroke and produced up to 102 hp (76 kW) with [[Kugelfischer]] mechanical [[fuel injection]].
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==2000 (Pushrod)==
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The 2.0 L (1991 cc) '''2000''' version was the ultimate Flavia engine.  Bore was 89mm and stroke was 80mm for a good [[oversquare]] ratio.  This engine was produced from 1968 through 1974.
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==2000 (Overhead Cam)==
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Fitted to [[Lancia Gamma|Gamma]]. 
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==2500 (Overhead Cam)==
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Fitted to [[Lancia Gamma|Gamma]]. 
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[[Category:Lancia engines|Flat-4]]

Latest revision as of 08:22, 6 July 2009


Lancia, known for their advanced engineering, surprised the auto world by designing a new aluminum flat-4 engine for their 1961 Flavia. Though it was a pushrod engine, it was advanced for the time. The pushrod version of the Lancia boxer was only ever used in the Flavia. In the mid 1970s, an overhead cam engine based on a similar layout was designed and brought into production in 2 and 2.5 litre forms fitted to the Gamma.

1500

The original version was the 1.5 L (1488 cc) 1500.

1800

The 1.8 L 1800 was introduced in the mid-1960s. It used an 88mm bore and 74mm stroke and produced up to 102 hp (76 kW) with Kugelfischer mechanical fuel injection.

2000 (Pushrod)

The 2.0 L (1991 cc) 2000 version was the ultimate Flavia engine. Bore was 89mm and stroke was 80mm for a good oversquare ratio. This engine was produced from 1968 through 1974.

2000 (Overhead Cam)

Fitted to Gamma.

2500 (Overhead Cam)

Fitted to Gamma.

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