Technology in conversation (1) - Boxer match

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Technology in conversation (1) - Boxer match

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Created on March 27, 2020

Text:

Gerhard Schütz

Photos:

Centro documentazione Alfa Romeo

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Mo Satarzadeh

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Archivbild

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Bruno von Rotz

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H.K.

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Julien Mahiels

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Antoine Dellenbach

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ZG Archiv

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Archiv

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Ferrari 512 BB LM (1979) - Chantilly Arts & Elégance 2016

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Ferrari 512 BB (1980) - Insight into the engine compartment - Photo from the 1980 sales brochure

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Cisitalia 360 (1947) - twelve-cylinder engine with blocked gearbox, this is also not a boxer, but a V12 with a 180-degree angle

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Cisitalia 360 (1947) - crankshaft, pistons, sleeve of the twelve-cylinder flat engine (not a boxer engine, but a V12 with a 180-degree angle)

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Alfa Romeo Tipo 160 (1952) - 12 cylinder 2.5 liter V12 180 degree flat engine

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Alfa Romeo Tipo 160 (1952) - 12 cylinder boxer engine with 2.5 liter displacement

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VW 1500 (1961) - the air-cooled 1500 engine

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Chevrolet Corvair (1959) - the six-cylinder engine with boxer layout

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12-cylinder engine of the Porsche 917 from 1969 - not a boxer engine, but a V12 with a 180-degree angle

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The 12-cylinder engine of the Porsche 917 and the mythical 16-cylinder variant

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Ferrari BB (1971) - at the Turin Motor Show - the flat engine with open intakes - not taken over into production in this form

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Ferrari 365 GT/4-BB Berlinetta Boxer (1971) - the cylinders are at a 180-degree angle to each other, but it's still not a boxer

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Ferrari BB (1971) - the twelve-cylinder Ferrari engine

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Ferrari 365 GT/4-BB Berlinetta Boxer (1971) - the V12 with 180 degree fork angle

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Ferrari 512 BB LM (1981) - 1000km Monza 1981 - View of the 12 cylinder engine

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Ferrari 512 BB/LM (1978) - Spa Classic 2012

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Ferrari 512 BB (1978) - as lot 228 at the RM/Sotheby's auction in Monterey on August 13 - 15, 2015

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Ferrari 512 BB (1981) - the longitudinally mounted engine seen from the right

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Summary

The Ferrari 365 GT/4 Berlinetta Boxer had a twelve-cylinder engine. From the name of the model, one could assume that it was a boxer engine, like the VW Beetle or the Porsche 911. But far from it, because neither Ferrari nor Porsche or Cisitalia built 12-cylinder boxer engines, but V12 engines with a 180-degree fork angle. Really? But let's let the two buddies Albert and Exbert clarify the issue in conversation ...

This article contains the following chapters

Basic considerations about the boxer and the 180-degree V-engine
Who invented it?
Further information

Estimated reading time: 3min

Preview (beginning of the article)

Two colleagues discuss engines ... Albert: Someone recently wrote on zwischengas.com about a 180-degree V12 engine. That's silly. That's a boxer engine . Exbert: Albert, that's not silly. It's not a boxer engine, it's a flat engine. A: Flat engine? Are you kidding me? E: Not at all. It's a flat V-engine. A: Since when can you flatten engines? Is a V-engine then a flattened boxer engine? E: A folded-up flat engine. A boxer engine is a flat engine, but not every flat engine is a boxer engine. A: How now? E: A boxer engine is a flat engine in which each connecting rod of a slightly offset opposite cylinder has its own crank pin (crank) on the crankshaft. These are rotated 180 degrees in relation to each other. The two opposing pistons thus always move towards and away from each other, i.e. they box.

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