Duesenberg Straight-8 engine
This article is about straight-eight engines made by Duesenberg. For the automobile marketed and sold under the name "Duesenberg Straight Eight" from 1921 to 1926, see Duesenberg Model A.
| Duesenberg Straight 8 | |
|---|---|
| Overview | |
| Manufacturer | Duesenberg/Lycoming |
| Production | 1921–1937 |
| Combustion chamber | |
| Configuration | Overhead cam Multivalve Overhead valve Straight-8 engine |
The Duesenberg Straight-8 engine was produced from 1921 to 1937 and sold in Duesenberg automobiles. Fred and August Duesenberg got their start building experimental racing engines which achieved a great deal of success. Among their accomplishments are wins at the Indianapolis 500, the 1921 French Grand Prix and speed records at the Bonneville Salt Flats. They used the expertise they had gained to start building production engines and cars which were renowned for their performance and luxury.
Among the novel design features (for a pre-1940 production engine) seen on various Duesenberg engines are single- and double-overhead camshafts, three- and four-valve heads, superchargers and aluminum castings.
Production engines
Main articles: Duesenberg Model A and Duesenberg Model J
| Duesenberg Model J engine[1] | |
|---|---|
 | |
| Overview | |
| Manufacturer | Duesenberg |
| Production | 1928-1937 |
| Combustion chamber | |
| Configuration | Straight-eight engine |
| Displacement | 420 cu in (6,900 cc) |
| Cylinder bore | 3.74 in (95 mm) |
| Piston stroke | 4.76 in (121 mm) |
| Cylinder block alloy | cast iron |
| Cylinder head alloy | cast iron |
| Valvetrain | DOHC, 4 valves per cylinder |
| Compression ratio | 5.7:1 |
| Combustion | |
| Supercharger | Duesenberg centrifugal (optional from 1932) |
| Fuel system | Single updraft Schleber carburetor |
| Fuel type | gasoline |
| Cooling system | water-cooled |
| Output | |
| Power output |
|
| Chronology | |
| Predecessor | Duesenberg Model A engine |
| Production | Engine | Displacement | Bore x stroke | Cam and valve | Model |
|---|---|---|---|---|---|
| 1921-27 | 260 | 259.7 cu in (4,256 cc)[2] | 2.8750" X 5.0000" (72.16 x 125.50 mm) | SOHC 2v | A,X |
| 1928-37 | 420 | 419.7 cu in (6,878 cc) | 3.7500" X 4.7500" (94.12 x 119.23 mm) | DOHC 4v | J,SJ,SSJ |
Competition engines
| Production | Engine | Displacement | Bore x stroke | Cam and valve |
|---|---|---|---|---|
| 1919-21 | 300 | 296.9 cu in (4,865 cc) | 3.0000" X 4.7500" (75.30 x 131.78 mm) | unk |
| 1921-23 | 183 | 183.0 cu in (2,999 cc) | 2.5000" X 4.6600" (62.75 x 116.97 mm) | SOHC 3v |
| 1923-25 | 122 | 121.3 cu in (1,988 cc) | 2.3750" X 3.4220" (59.61 x 85.89 mm) | unk |
| 1926-29 | 91 | 90.3 cu in (1,480 cc) | 2.2860" X 2.7500" (57.38 x 69.03 mm) | unk |
| source: The Golden Age of the American Racing Car[3] | ||||
See also
Notes
- ↑ Cheetham, Craig (2006) [2004]. Vintage Cars. St. Paul, MN USA: Motorbooks. pp. 75, 79. ISBN 978-0-7603-2572-8. Retrieved 2013-12-13.
- ↑ "Directory Index: Duesenberg/1922_Duesenberg_Model_A_Catalogue". Oldcarbrochures.com. Retrieved 2011-11-20.
- ↑ Borgeson, Griffith. The golden age of the American ... - Google Books. Books.google.com. ISBN 978-0-7680-0023-8. Retrieved 2009-07-05.
References
- Griffith Borgeson (1997). The Golden Age of the American Racing Car. SAE International. ISBN 978-0-7680-0023-8.
External links
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