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  BRM Type 25
 

  Article Image gallery (46) 258 Specifications  
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Country of origin:Great Britain
Produced from:1955 - 1959
Numbers built:11
Predecessor:BRM Type 30 'V16'
Successor:BRM P48
Author:Wouter Melissen
Last updated:September 09, 2010
Download: All images

Engine
Configuration Straight 4
Location Front, longitudinally mounted
Displacement 2,491 cc / 152 cu in
Bore / Stroke 102.9 mm (4.1 in) / 74.9 mm (2.9 in)
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 2 Weber Carburettors
Aspiration Naturally Aspirated
Power 275 bhp / 205 KW @ 8,000 rpm
Torque 278 Nm / 205 ft lbs
BHP/Liter 110 bhp / liter

Drivetrain
Chassis aluminium body steel spaceframe
Front suspension double wishbones, coil springs over dampers
Rear suspension DeDion axle, coil springs over dampers
Steering rack-and-pinion
Brakes front discs, single rear disc on the gearbox
Gearbox 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 690 kilo / 1,521 lbs
Wheelbase / Track (fr/r) 2,286 mm (90 in) / N/A / N/A

Performance figures
Power to weight 0.4 bhp / kg
Top Speed 274 km/h (170 mph)

Race history
Major wins
1959 Dutch Grand Prix (Jo Bonnier in 258)

Resources
Suggested reading
  • BRM Volume 1, by Doug Nye
  • BRM Volume 2, by Doug Nye
Related articles
Useful links

  Article Image gallery (46) 258 Specifications