Hispano-Suiza J12

Hispano-Suiza J12
1933 Hispano-Suiza J12 Sport Torpedo
Overview
Manufacturer Hispano-Suiza
Also called
Production 1931–1938
Assembly
Designer
Body and chassis
Class Luxury car
Body style by arrangement with the customer's coachbuilder
Layout FMR
Powertrain
Engine
  • 9,424 cc (575.1 cu in) OHV V-12
  • (11,310 cc (690.2 cu in) from 1935 on)[5]
Transmission 3-speed manual
Dimensions
Wheelbase
Chronology
Predecessor Hispano-Suiza H6[6]

The Hispano-Suiza J12 is a luxury automobile that was made by Hispano-Suiza from 1931 to 1938.[5] It was the largest and most expensive car ever built by Hispano-Suiza.[2][3] It replaced the Hispano-Suiza H6.[6]

The J12 was powered by a 60° V12 engine with pushrod-operated overhead valves and a seven-bearing crankshaft.[1] The engine initially displaced 9.4 L (574 cu in)[1][6] with bore and stroke both being 100 mm (3.9 in) and with a compression ratio of 5.0:1,[1] delivered 220 hp at 3000 rpm.[1][6] Two cars were fitted with long-stroke engines displacing 11.3 L (690 cu in) and delivering 250 hp, and several J12s were later upgraded to the larger engine.[11] Each engine block was machined from a single 700 lb (318 kg) billet.[6] To demonstrate the high quality engineering and reliability of the J12, one car was driven from Paris to Nice and back without needing oil or water.[11] The J12 was only available as a chassis, buyers having to arrange with outside coachbuilders to build a body.[11]

Hispano-Suiza suspended automobile production in 1938 to concentrate on the manufacture of aircraft engines.[12][13]

Notes

  1. 1 2 3 4 5 6 7 Rogliatti 1973, p. 77.
  2. 1 2 Kimes 1990, p. 646.
  3. 1 2 Nicholson 1982, p. 307.
  4. 1 2 Kimes 1990, p. 642.
  5. 1 2 Robson 1990, p. 72.
  6. 1 2 3 4 5 6 7 8 Scott 1991, p. 52.
  7. 1 2 3 4 Robson 2001, pp. 248–249.
  8. ↑ Given as 134 1⁄2 in (3,420 mm) in Kimes 1990, p. 648
  9. 1 2 Kimes 1990, p. 648.
  10. ↑ Given as 157 3⁄4 in (4,010 mm) in Kimes 1990, p. 648
  11. 1 2 3 Cheetham, Craig (2004). Vintage Cars - The Finest Prewar Automobiles. Rochester, United Kingdom: Grange Books. p. 105. ISBN 1840136359.
  12. ↑ Robson 1990, p. 73.
  13. ↑ Kimes 1990, p. 651.

References

  • Kimes, Beverly Rae, ed. (1990). "Hispano-Suiza". The Classic Car. Des Plaines, IL US: Classic Car Club of America. pp. 641–651. ISBN 0-9627868-0-2. LCCN 90084421.
  • Nicholson, T. R. (1982) [First edition 1968]. "Hispano-Suiza (ii) (F) 1911–1938". In Georgano, G. N. The New Encyclopedia of Motorcars 1885 to the Present (Third ed.). New York, NY US: E. P. Dutton. p. 307. ISBN 0525932542. LCCN 81-71857.
  • Robson, Graham (2001). "Hispano-Suiza V12". The Illustrated Directory of Classic Cars. St. Paul, MN USA: MBI Publishing. pp. 248–249. ISBN 0-7603-1049-1.
  • Robson, Graham (1990). "Hispano-Suiza V12". The Worlds Most Powerful Cars. 6 Blundell Street, London N7 9BH: Quintet Publishing. pp. 72–73. ISBN 1-85076-254-6.
  • Rogliatti, Gianni (1973). Posthumus, Cyril, ed. Period Cars. Feltham, Middlesex, UK: Hamlyn. pp. 76–77. ISBN 0-600-33401-5.
  • Scott, Michael G. H. (29 July 1991). "Escape Road: 1931-38 Hispano-Suiza Type 68 J12". AutoWeek. Detroit MI: Crain Communications. 41 (30): 52. ISSN 0192-9674.
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