Repco-Brabham V8

Repco-Brabham V8
RB740 on Brabham BT24 on the left, RB620 on Brabham BT19 on the right, at Donington Park
Overview
ManufacturerRepco-Brabham Engines Pty. Ltd.
Production1965–1970
Layout
ConfigurationNaturally aspirated V8
Displacement2.5 L (2,497 cc)
2.8 L (2,799 cc)
3.0 L (2,996 cc)
4.2 L (4,194 cc)
4.4 L (4,415 cc)
5.0 L ( n.a. )
Cylinder bore85.0 mm (2.5L)
3.500 in (others)
90.0 mm (2.8 & 5.0L)
Piston stroke55.0 mm (2.5 & 2.8L)
2.375 in (3.0L)
3.325 in (4.2L)
3.500 in (4.4L)
  n.a. (5.0L)
Cylinder block materialCast aluminium,
or, magnesium alloy
ValvetrainSOHC 2 valves per cylinder
DOHC 4 valves per cylinder
Compression ratio11.0:1 - 12.0:1
RPM range
Max. engine speed9,000rpm (2.5L)
8,500 rpm (3.0L)
7,000 rpm (SOHC4.4L)
7,500 rpm (DOHC5.0L)
Combustion
Fuel systemLucas Mechanical Port injection
Fuel typePetrol
Cooling systemWater-cooled
Output
Power output285 bhp (213 kW) (2.5L)
330 bhp (250 kW) (3.0L)
400 bhp (300 kW) (4.4L)
460 bhp (340 kW) (5.0L)
Dimensions
Dry weight150 kg (330 lb) (2.5L)
159 kg (350 lb) (3.0L)
163 kg (360 lb) (SOHC5.0L)
172 kg (380 lb) (DOHC5.0L)
Repco-Brabham as a Formula One engine manufacturer
Official name(s)Repco-Brabham Engines Pty. Ltd.
Formula One World Championship career
First entry1966 Monaco Grand Prix
Last entry1969 South African Grand Prix
Races entered33
ChassisBrabham, LDS
Constructors' Championships2 (1966, 1967)
Drivers'
Championships
2 (1966, 1967)
Race victories8
Podiums25
Points126
Pole positions7
Fastest laps4

The Repco-Brabham V8 engines are a series of V8 piston engines for racing in 2.5L to 5.0L displacement. This engine family features a flat-plane crankshaft with an aluminium or magnesium alloy engine block, as well as dry-sump lubrication. These engines were produced by Repco-Brabham Engines in Australia from 1965 to 1970.