Daimler V8 engines

Daimler V8
1963 Daimler SP250 V8 Engine
Overview
ManufacturerThe Daimler Company Limited
Production
Layout
Configuration90 degree V eight-cylinder[1]
Displacement
  • 4½ litre: 4.561 litres (278 cu in)[2]
  • 2½ litre: 2.548 litres (155 cu in)[1]
Cylinder bore
  • 4½ litre: 95.25 mm (3.75 in)[2]
  • 2½ litre: 76.2 mm (3.0 in)[1]
Piston stroke
  • 4½ litre: 80.01 mm (3.15 in)[2]
    2½ litre: 69.85 mm (2.75 in)[1]
Cylinder block materialCast iron[3]
Cylinder head materialAluminium alloy[3]
ValvetrainOHV by pushrods and rockers[2] from a single camshaft,[4] two valves per cylinder, hemispherical head[5]
Compression ratio
  • 4½ litre: 8.0:1[2]
  • 2½ litre: 8.2:1[1]
Combustion
Fuel system
  • 4½ litre: Carburettors—twin S.U. HD8; fuel pump—SU electric
  • Aua 61[2]
  • 2½ litre: Carburettors—twin S.U. HD6[1]
Fuel typePetrol[2]
Oil systemFilter—Full flow replaceable element[2]
Cooling systemWater[2]
Output
Power output
  • 4½ litre: 220 bhp (160 kW; 220 PS) @ 5,500 rpm[2]
  • 2½ litre: 140 bhp (100 kW; 140 PS) @ 5,800 rpm[1]
Torque output
  • 4½ litre: 383.7 N⋅m (283.0 lbf⋅ft) @ 3,200 rpm[2]
  • 2½ litre: 210 N⋅m (150 lbf⋅ft) @ 3,600 rpm[1]
Dimensions
Length
  • 4½ litre: 31.25 in (793.8 mm)
  • 2½ litre: 30 in (762.0 mm)
Width
  • 4½ litre: 25.5 in (647.7 mm)
  • 2½ litre: 24 in (609.6 mm)
Height
  • 4½ litre: 31 in (787.4 mm)
  • 2½ litre: 27 in (685.8 mm)
Dry weight
  • 4½ litre: 498 lb (226 kg)
  • 2½ litre: 419 lb (190 kg) exc. flywheel
Chronology
Predecessor

V-8 engines were produced by the Daimler Company in displacements of 2.5 L (153 cu in) (1959-1968) and 4.5 L (275 cu in) (1959-1968). Designed for Daimler by Edward Turner, they were initially used in the SP250 sports car and the Majestic Major saloon respectively; ultimately, the 2.5 L was mostly used in the Daimler 2.5 V8 (later named V8-250) saloon made with Jaguar Mark 2 unit bodies from 1962 to 1969. Approximately 20,000 of the 2.5 L were used in the SP250 and the 250 saloon, and approximately 2,000 4.5 L in the Majestic Major saloon and its Daimler DR450 limousine variant which remained in production until 1968.

  1. ^ a b c d e f g h Smith 1972, p. 279.
  2. ^ a b c d e f g h i j k Cite error: The named reference ART was invoked but never defined (see the help page).
  3. ^ a b Smith 1972, p. 271.
  4. ^ Smith 1972, p. 276.
  5. ^ Smith 1972, p. 277.