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  McLaren M9A Cosworth      

  Article Image gallery (24) M9A-1 Specifications  
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Country of origin:Great Britain
Produced in:1969
Numbers built:1
Designed by:Jo Marquart for McLaren
Author:Wouter Melissen
Last updated:April 29, 2016
Download: All images

Engine
Configuration Ford Cosworth DFV 90º V8
Location Mid, longitudinally mounted
Weight 168 kilo / 370.4 lbs
Construction aluminium 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 430 bhp / 321 kW @ 10,000 rpm
BHP/Liter 144 bhp / liter

Drivetrain
Body fibreglass
Chassis aluminium monocoque with fully stressed engine
Suspension (fr/r) double wishbones, rocker-actuated coil springs over shock absorbers, anti-roll bar
Steering rack-and-pinion
Front Brakes Lockheed ventilated discs, 305mm (12 in)
Rear brakes Lockheed ventilated discs, in-board, 305mm (12 in)
Gearbox McLaren / Hewland 5 speed Manual
Drive All wheel drive

Dimensions
Weight 526 kilo / 1,160 lbs
Length / Width / Height 3,759 mm (148 in) / 914 mm (36 in) / 640 mm (25.2 in)
Wheelbase / Track (fr/r) 2,413 mm (95 in) / 1,600 mm (63 in) / 1,499 mm (59 in)
Wheels (fr/r) 12 x 13 / 14 x 13
Tyres Goodyear

Performance figures
Power to weight 0.82 bhp / kg

Race history
Drivers of note Derek Bell

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 (24) M9A-1 Specifications