16 Valves history
Publié : 07 sept. 2006, 21:59
Je m'interrogeais sur l'origine du 16 soupapes, son histoire, voilà ce que j'ai trouvé sur http://www.answers.com/topic/multi-valve, je ne pensais pas que celà pouvait remonter aussi loin !! et je ne pensais pas non plus trouver le nom de Lotus dans cette historique : 
History
The first multivalve engine was built by Peugeot in 1912 for Grand Prix racing. The technology was also attempted by Bugatti, Bentley, and Stutz, but it was not until the 1970s that this technology became widespread. The first was Jensen in the 1972 Jensen Healey roadster.
This used a Lotus developed version of a GM design which resulted in a 1973 cc (2.0 L) DOHC engine that delivered 140 hp. Others, including Cosworth (on the 1975 Chevrolet Vega's 2300 engine), Lotus Cars (on the 1976 Esprit — which used a 160 hp version of the same engine first seen in the Jensen Healey), and BMW (on the 1979 M1's M88 engine). Triumph also introduced a single overhead cam 16-valve head on the Slant-4 in their Dolomite Sprint.
Ferrari followed Lotus and GM in to the multivalve designs with their Quattrovalve 308. From there, Honda and Toyota rapidly spread the technology to their mainstream models in the 1980s.
History
The first multivalve engine was built by Peugeot in 1912 for Grand Prix racing. The technology was also attempted by Bugatti, Bentley, and Stutz, but it was not until the 1970s that this technology became widespread. The first was Jensen in the 1972 Jensen Healey roadster.
This used a Lotus developed version of a GM design which resulted in a 1973 cc (2.0 L) DOHC engine that delivered 140 hp. Others, including Cosworth (on the 1975 Chevrolet Vega's 2300 engine), Lotus Cars (on the 1976 Esprit — which used a 160 hp version of the same engine first seen in the Jensen Healey), and BMW (on the 1979 M1's M88 engine). Triumph also introduced a single overhead cam 16-valve head on the Slant-4 in their Dolomite Sprint.
Ferrari followed Lotus and GM in to the multivalve designs with their Quattrovalve 308. From there, Honda and Toyota rapidly spread the technology to their mainstream models in the 1980s.
t'as eu la chance de rouler là dedans ! 
...j ai rouler dans a peu pres tout ce qui a ete fait chez les anglais, en fait, depuis l age du berceau, j ai vrainet quasi jamais rouler das autres chose que d el anglais!