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Daimler-Benz DB 603
Daimler Benz DB 603 WRG# 0021722
The DB 603 is based on the DB 601 twelve-cylinder inverted Vee liquid-cooled engine with a larger bore, increasing displacement to 44.52 litres. the increase was achieved by reducing the wall thickness between cylinders.

Specifications (DB 603A):

General characteristics
  Type: 12-cylinder liquid-cooled supercharged inverted Vee aircraft piston engine
  Bore: 162 mm (6.38 in)
  Stroke: 180 mm (7.09 in)
  Displacement: 44.52 L (2,716.9 cu. in.)
  Length: 2610.5 mm (102.8 in)
  Diameter: 830 mm (32.7 in)
  Dry weight: 920 kg (2,030 lb)

Components
  Supercharger: Gear-driven centrifugal type supercharger
  Fuel system: Direct fuel injection
  Cooling system: pressurized water cooling

Performance
  Power output:
      1,287 kW (1,750 PS) for takeoff
      1,111 kW (1,510 PS) maximum continuous
  Specific power: 26.7 kW/L (0.59 hp/cu. in.)
  Compression ratio: 7.5:1 left cylinder bank, 7.3:1 right cylinder bank
  Specific fuel consumption: 0.288 kg/(kW·h) (0.474 lb/(hp·h))
  Power-to-weight ratio: 1.29 kW/kg (0.79 hp/lb)

Applications:
– Blohm & Voss BV 155
– Blohm & Voss BV 238
– Dornier Do 217
– Dornier Do 335
– Focke-Wulf Ta 152
 – Heinkel He 177B
– Heinkel He 219
– Heinkel He 274
– Messerschmitt Me 410
Sources:
Wikipedia
Jane's All The Worlds Aircraft 1943-1944, New York, The Macmillan Company
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