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Reciprocating internal combustion engine
Auto Union Grand Prix racing engine
Overview
Manufacturer
Auto Union
Production
1934-1939
Layout
Configuration
45° V-16 60° V-12
Displacement
4.4–6.0 L (269–366 cu in)
Cylinder bore
75 mm (3.0 in)
Piston stroke
85 mm (3.3 in)
Valvetrain
48-valve to 64-valve, DOHC, four-valves per cylinder
Compression ratio
9.2:1[1]
Combustion
Supercharger
Yes
Fuel system
Carburetor
Oil system
Dry sump
Output
Power output
291–620 hp (217–462 kW)
Torque output
391–651 lb⋅ft (530–883 N⋅m)
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Auto Union, a German automobile manufacturer, made a series of pre-war supercharged Grand Prix racing engines for their Auto Union racing cars; between 1934 and 1939.[2][3][4][5][6][7][8][9][10][11]
^"Specifications of 50 famous racing engines up to 1994 - Page 2 - F1technical.net".
^"1939 Auto Union Silver Arrow twin-supercharger Type D Racing Car". myautoworld.com. Retrieved 2021-10-15.
^Rettie, John (2012-08-10). "Audi Buys Their Dream Car: 1939 Auto Union Type D". Road & Track. Retrieved 2021-10-15.
^"Auto Union Type C". Sports Car Digest - The Sports, Racing and Vintage Car Journal. 2013-02-28. Retrieved 2021-10-15.
^"Auto Union Type D". Sports Car Digest - The Sports, Racing and Vintage Car Journal. 2014-09-17. Retrieved 2021-10-15.
^"1936 Auto Union Typ C | Auto Union". Supercars.net. 2016-04-22. Retrieved 2021-10-15.
^"1934 Auto Union Type A Specifications". Ultimatecarpage.com. Retrieved 2021-10-15.
^"1936 - 1937 Auto Union Type C Specifications". Ultimatecarpage.com. Retrieved 2021-10-15.
^1936 Auto Union Type C V16 Sound In Action at Festival of Speed 2018!, retrieved 2021-10-15
^"CMC Auto Union Type C, 1936-1937". CMC GmbH & Co. KG. Retrieved 2021-10-15.
^Santosh (2016-09-12). "Silver Arrows of the Auto Union". Rev and Shift. Retrieved 2021-10-15.
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