{"id":8809,"date":"2016-02-04T12:00:00","date_gmt":"2016-02-04T12:00:00","guid":{"rendered":"http:\/\/museonicolis.com\/?p=8809"},"modified":"2025-01-13T15:11:40","modified_gmt":"2025-01-13T14:11:40","slug":"om-superba-665-ssmm","status":"publish","type":"post","link":"https:\/\/www.museonicolis.com\/en\/om-superba-665-ssmm\/","title":{"rendered":"OM, 1931, Superba 665 SSMM"},"content":{"rendered":"

OM \u201cSuperba 665 SSMM\u201d, Carrozzeria Castagna, 1931<\/strong><\/h2>\n

The 665 Superba<\/strong> was introduced in 1923<\/strong> and produced in several series and models until 1932<\/strong>. It was the best known and appreciated OM production model because of its racing wins, culminated in the first three positions at the first edition of the Mille Miglia in 1927<\/strong>. After the victory of the Alfa Romeo in the 1928 Mille Miglia, OM realised the importance of the supercharger and in 1929 introduced a new sports model with a Roots supercharger<\/strong>.
\nFrom then on, OM models were available with or without supercharger, with over-head or side valves. The car on show in the museum is a 665 SSMM<\/strong> model; fitted with a Roots supercharger<\/strong>, is one of the cars the English OM importer modified, fitting cylinder heads with over-head instead of sides valves<\/strong>.
\nThe English heads were cast iron and the combustion side was \u201cflat\u201d. Domed pistons, because the low position of the sparkplugs did not leave room for trunk pistons. The cyclinder block was very special, made in cast iron with twelve 18mm sparkplugs, six on each side fixed in well-hidden holes.
\nIn the road version ignition was supplied with magneto, coil ignition and 6 cylinder spark coil. The racing models probably used two magnetos for double ignition. Thanks to the light and well shaped body built by Carrozzeria Castagna<\/strong>, the car could reach a speed of 150 kph<\/strong>.<\/p>\n

ACTIVITIES
\n<\/strong>1931 Salone dell\u2019Automobile<\/strong> in Milan. Foto1\u00a0\u00a0<\/a>Foto 2<\/a>
\nIn 1937 the car took part to Welsh Rally Historical competition\u00a0<\/strong>organised by South Wales Auto Club<\/strong> from 1935 to 1939.
\n2011 Shooting, Ruoteclassiche<\/a>
\n<\/strong>2015 Concorso di Eleganza Villa d\u2019Este<\/strong><\/a>
\n2014 the car won \u00a0\u201cBest of Class-famous Elegance\u201d<\/strong> and \u201cBest preserved pre-war car\u201d Trophies<\/strong>\u00a0Classic Days, Schloss Dick<\/a> <\/strong>international concours.
\n2014\u00a0Parco del Valentino Asi<\/strong><\/a>
\n2017 Shooting, Oldtimer MARKT<\/strong><\/a>
\n2018 \u00a0Poste Italiane<\/strong>\u00a0chose this car for a philatelic postcard.<\/p>\n\r\n\r\n \r\n