Daimler V8 engines

Daimler V8
Daimler V8
	1963 Daimler SP250 V8 Engine
Overview
Manufacturer	The Daimler Company Limited
Production	4½ litre:; 1959-1968 2,044 cars; 864 Daimler limousines; 1,180 Majestic Major saloons; 2½ litre:; 1959-1969; 20,268 or more; 2648 SP250 sports cars; 17,620 2.5 V8 & V8-250 saloon cars; marine engines produced from 1961;
Layout
Configuration	90 degree V eight-cylinder
Displacement	4½ litre: 4.561 litres (278 cu in); 2½ litre: 2.548 litres (155 cu in);
Cylinder bore	4½ litre: 95.25 mm (3.75 in); 2½ litre: 76.2 mm (3.0 in);
Piston stroke	4½ litre: 80.01 mm (3.15 in); 2½ litre: 69.85 mm (2.75 in);
Cylinder block material	Cast iron
Cylinder head material	Aluminium alloy
Valvetrain	OHV by pushrods and rockers from a single camshaft, two valves per cylinder, hemispherical head
Compression ratio	4½ litre: 8.0:1; 2½ litre: 8.2:1;
Combustion
Fuel system	4½ litre: Carburettors—twin S.U. HD8; fuel pump—SU electric; Aua 61; 2½ litre: Carburettors—twin S.U. HD6;
Fuel type	Petrol
Oil system	Filter—Full flow replaceable element
Cooling system	Water
Output
Power output	4½ litre: 220 bhp (160 kW; 220 PS) @ 5,500 rpm; 2½ litre: 140 bhp (100 kW; 140 PS) @ 5,800 rpm;
Torque output	4½ litre: 383.7 N⋅m (283.0 lbf⋅ft) @ 3,200 rpm; 2½ litre: 210 N⋅m (150 lbf⋅ft) @ 3,600 rpm;
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	4½ litre:; DE36 Straight-Eight; DK400 Straight-Six; 2½ litre:; 2½-litre Straight-Six Daimler Conquest;

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.