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  McLaren MP4/1 Cosworth
 

  Article Image gallery (18) MP4/1-1 Specifications  
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Country of origin:Great Britain
Produced in:1981
Numbers built:4
Designed by:John Barnard for McLaren
Successor:McLaren MP4/1B Cosworth
Author:Wouter Melissen
Last updated:June 16, 2014
Download: All images

Engine
Configuration Ford Cosworth DFV 90º V8
Location Mid, longitudinally mounted
Weight 147 kilo / 324.1 lbs
Construction magnesium alloy block and head
Displacement 2,993 cc / 182.6 cu in
Bore / Stroke 85.7 mm (3.4 in) / 64.8 mm (2.6 in)
Compression 11.5:1
Valvetrain 4 valves / cylinder, DOHC
Fuel feed Lucas Fuel Injection
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 490 bhp / 366 KW @ 10,750 rpm
Torque 353 Nm / 260 ft lbs @ 9,000 rpm
BHP/Liter 164 bhp / liter

Drivetrain
Chassis carbon fibre honeycomb monocoque
Front suspension lower wishbones, upper rocker arms actuating coil springs over dampers
Rear suspension double wishbones, rocker-arm actuated coil springs and dampers
Steering rack-and-pinion
Brakes ventilated discs, all-round
Gearbox McLaren/Hewland FGA 400 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 585 kilo / 1,290 lbs
Length / Width / Height 4,318 mm (170 in) / 2,057 mm (81 in) / 1,016 mm (40 in)
Wheelbase / Track (fr/r) 2,640 mm (103.9 in) / 1,730 mm (68.1 in) / 1,676 mm (66 in)
Tyres (fr/r) 23/59 x 13 / 38/66 x 13

Performance figures
Power to weight 0.84 bhp / kg

Race history
Major wins
1981 British Grand Prix (John Watson in MP4/2)

Resources
Suggested reading
  • McLaren, the Grand Prix, Can-Am and Indy Cars, by Doug Nye
  • McLaren - The cars 1964 - 2008, by William Taylor
Related articles
Useful links

  Article Image gallery (18) MP4/1-1 Specifications