Isotta-Fraschini

Italy, 1900 – 1949

(1) Società Milanese d’Automobili Isotta, Fraschini & Cia, Milan, 1900 – 1904

(2) Fabbrica Automobili Isotta-Fraschini, Milan, 1904 – 1949

Cesare Isotta and Vincenzo Fraschini went into partnership in 1899, importing French cars (Mors, Renault) and proprietary engines (Aster); when their company was floated a year later the first Isotta Fraschini cars to bear their names were thinly disguised Renaults with shaft drive and 5hp single-cylinder Aster power units. A 12hp twin Isotta Fraschini car appeared in 1902, but the first wholly Italian designed Isotta Fraschini cars were not seen until 1903. These new Isotta Fraschini cars followed the fashionable Mercédès idiom with pair-cast 4-cylinder engines, side valves in a T-head, low tension magneto ignition, 4-speed gearboxes and side-chain drive. Initially three Isotta Fraschini carmodels were listed – a 4.180cc Isotta Fraschini 12, a 5.426cc Isotta Fraschini 16 and a 7.433cc Isotta Fraschini 24 – and there were few major changes until 1908, though foot accelerators and high tension ignition came in 1906 on Isotta Fraschini cars, and compressed-air starters were offered briefly in 1907, when the largest Isotta Fraschini carcar in the catalogue was the 11.3-litre Isotta Fraschini Tipo C.

Like FIAT and Itala, theIsotta Fraschini carfirm was quick to recognize the prestige value of racing: in 1905 they built an unsuccessful 17.2-litre machine with gear-driven ohc; in 1907 Minoia won the Coppa Florio with a Isotta Fraschini car; and in 1908 Trucco won the Targa Florio. The last year brought numerous successes in the USA, where 40 Isotta Fraschini cars were sold. By 1906 Isotta Fraschini were Italy’s second-ranking manufacturers, after FIAT, but they were hard hit by the Agadir Crisis, and in 1907 there was a successful takeover bid by Lorraine-Dietrich of France, whose intention it was to integrate the Milan Isotta Fraschini car-factory into their organization. By 1909, however, Isotta Fraschini were independent again and had sold a manufacturing licence to Praga in Prague.

A novelty in 1908 was a 1.327cc racing voiturette with ohc 4-cylinder monobloc engine said to run up to 3.500rpm; this Isotta Fraschini car went into limited production as the FENC type. More important, a successful uncoupled 4-wheel braking system was evolved by Oreste Fraschini and Giustino Cattaneo (who had joined theIsotta Fraschini car firm in 1905 and was to be responsible for all Isotta Fraschini cars up to 1935). This was available on production Isotta Fraschini cars by 1911, and three years later was standardized on the larger Isotta Fraschini cars. The 1909 range included a modern sv monobloc four, the ENC, available in 2.1-litre and 2.2-litre forms, though the old combination of T-head engine and chain drive persisted until 1913. The smaller Isotta Fraschini cars of 1914 closely paralleled the offerings of FIAT and Itala, coming in 2.3-litre, 3-litre and 4.4-litre sizes, with monobloc engines, 4-speed gearboxes, and optional electrics. However, for the enthusiast the Isotta Fraschini car company offered some 16-valve ohc sports cars with 4-wheel brakes and chain drive – the 6.2-litre Isotta Fraschini TM and the 10.6-litre Isotta Fraschini KM. The latter boasted dual magneto ignition, could be had with pear-shaped or V-radiator, and this Isotta Fraschini car was capable of 85-90mph on 140bhp. A Isotta Fraschini car with 130bhp 7.2-litre engine was raced unsuccessfully at Indianapolis in 1913, and there was also a shaft-driven variant of the TM, designated the Isotta Fraschini TC.

After World War 1 Cattaneo switched to a one-model Isotta Fraschini car programme with the Isotta Fraschini Tipo 8, a 5.880cc 9-bearing pushrod ohv straight-8 with alloy block, magneto ignition, 3-speed unit gearbox, central ball change, multi-plate clutch, semi-elliptic springing, and coupled 4-wheel brakes. Output was 80bhp at a low 2.200rpm, and the Isotta Fraschini car was conceived from the start as a chauffeur-driven carriage – hence the ponderous handling that attracted unfavourable comparisons with the contemporary 32CV Hispano-Suiza. Most straight-8s were exported: of 1.370 delivered Isotta Fraschini cars between 1919 and 1935 about 450 went to the United States and there were agencies in eight foreign capitals. In 1925 the Isotta Fraschini Tipo 8 gave way to the 7.4-litre Isotta Fraschini 8A with servo brakes, higher gear ratios, and an output of 110 – 120bhp; the 135 bhp Isotta Fraschini 8ASS sports version was said to do 104mph. By 1929 a Isotta Fraschini carlimousine cost £2.900 in London or $22.750 in New York. Two years later came the last of Isotta Fraschini car with a straight-8, the Isotta Fraschini 8B. This had a redesigned engine capable of 3.000rpm, coil ignition, and a stiffer and deeper frame; from 1932 Isotta Fraschini car was available with a 4-speed preselective gearbox, a conversion initiated by Antione Lago, then the Isotta Fraschini company London agent. In 1934 a 4-speed synchromesh box was offered, but by now sales were down to a trickle (only 25-30 8Bs were made all told, as against 950 8As) and the Isotta Fraschini car company, after unsuccessful negotiations for a merger with Henry Ford, elected to concentrate on aero engines. In 1936 Isotta Fraschini joined the Caproni organization, and their only roadgoing products were diesel trucks made under MAN-licence.

There was a final comeback of Isotta Fraschini cars in 1947 with the Rapi-designed 8C Monterosa – Isotta Fraschini never marketed a six. This Isotta Fraschini car had a 90 degrees ohc V8 engine mounted at the rear of a platform chassis, with independent front suspension by rubber in compression and swing-axle rear suspension. The 5-speed all-synchromesh gearbox incorporated an overdrive top, brakes were hydraulic, and a curious feature was an ignition warning light that went out in the event of trouble. Various cylinder capacities were tried: the 1947 Paris Salon Isotta Fraschini car had a 3.4-litre unit, but production models were to have had 2.544cc engines. Prototype Isotta Fraschini cars wore aerodynamic convertible and closed coachwork by Touring of Milan, but less than 20 Isotta Fraschini 8Cs had been built when the factory was shut down by order of the Italian government. The name Isotta Fraschini was acquired by the Breda armaments firm, who attempted a revival of the diesel commercial vehicle range as late as 1958

Source: Georgano, encyclopedia of motorcar; MCS

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Duesenberg

US, 1920 – 1937, 1966

(1) Duesenberg Motor Co, Indianapolis, Ind., 1920 – 1937

(2) Duesenberg Corporation, Indianapolis, Ind., 1966

Fred Duesenberg began by making bicycles and designed his first Duesenberg car, the Mason, in 1904. He and his brother August made engines with horizontal overhead valves for the 1912 Mason racing cars, and founded Duesenberg Motors in the following year in order to produce marine engines and complete racing cars bearing the Duesenberg name. The most famous of the latter appeared in 1920: a 3-litre Bugatti-inspired Duesenberg straight-8 with single overhead camshaft and three (vertical) valves per cylinder. This Duesenberg won the 1921 French Grand Grand Prix. In the 1920s the Duesenberg racing cars were the great rivals of the Millers at Indianapolis, and victory was assured in 1924 by the adoption of a centrifugal blower on Duesenberg cars. Though a two-stroke 1½-litre 8-cylinder racing engine capable of 7.000rpm was made in 1926, this was not proceeded with. The horizontal-valve Duesenberg engine was taken over in 1920 by the Rochester Motor Manufacturing Co Inc and was used in various sporting and luxury cars.

Meanwhile, at the end of 1920, the first Duesenberg production car made its debut. This Duesenberg Model A was an extremely expensive, if very advanced, luxury car, embodying an 8-cylinder in-line engine – the first to be seen in an American production car – of 4.2 litres, basically similar to the Duesenberg racing unit, but with only two valves per cylinder and developing about 100bhp. There were also hydraulically-operated front wheel brakes – another ‘first’ as far as America was concerned. The Model A was current until 1926. A handful of its little-altered successor, the Duesenberg Model X, was made in 1926-1927, but in the former year E.L. Cord of Auburn acquired control of the Duesenberg company. He stipulated that Fred Duesenberg’s next car should be completely new, and a quite exceptional machine. In fact, the Duesenberg Model J, which made its bow at the end of 1928, was the most remarkable automobile in America: bigger, faster, more elaborate and more expensive than any other, yet also superior to them in refinement and good looks. Its 6.9-litre, 8-cylinder engine, made by Lycoming (a firm which Cord had also bought), had two chain-driven overhead camshafts operating four valves per cylinder; a layout of racing type unique among American cars at the time and said to develop 265bhp at 4250rpm – more than double the output of any rival. Although the complete Duesenberg car weighed more than 4980lb, it was claimed to be capable of 116mph in top gear and 89mph in second. Only Duesenberg Model J chassis were made for which $8500 was asked in 1929. Immensely long and strong and lowbuilt, Duesenberg cars were very popular with all the leading coachbuilders. The Duesenberg company preferred to sell cars complete with bodies designed by them but made by approved builders, such as Murphy, Bohman & Schwarts, Judkins, Derham and Le Baron. In this form, catalogued Duesenberg models cost up to $17.950. The transmission – apart form the double dry-plate clutch – was conventional, as was the suspension by half-elliptic springs and hydraulic shock absorbers. The brakes, of course, were hydraulic, with vacuum servo assistance from late 1929.

In 1932 a supercharged version of the Model J, the Duesenberg SJ, was added. To cope with the 320bhp now alleged to be available, bearings, reciprocating parts and valve springs were strengthened. Usually, the shortest Duesenberg J chassis was used, with the highest axle ratio and stronger front springs. A maximum speed of 129mph was attributed to the Duesenberg SJ, with an acceleration figure of 0-100mph in 17 seconds.

Duesenberg survived the Depression, but died in the collapse of the Cord Corporation in 1937. Attempts to revive the Duesenberg name were made in 1947 and in 1966. The first Duesenberg was unsuccessful, and in 1966 only one Duesenberg car was actually made, powered by a 7-litre V8 Chrysler engine with push-rod overhead valves, developing 431bhp at 5.000rpm. Transmission was automatic, front suspension was independent, and there were disc brakes. Body styling was by Ghia. This Duesenberg venture, too, collapsed.

Source: Georgano, encyclopedia of motorcar; TRN 

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com