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  March 821 Cosworth      

  Article Image gallery (16) RM11 Specifications  
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Country of origin:Great Britain
Produced in:1982
Numbers built:5
Designed by:Adrian Reynard
Predecessor:March 811 Cosworth
Author:Wouter Melissen
Last updated:May 10, 2021
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 aluminium honeycomb monocoque with fully stressed engine
Suspension (fr/r) double wishbones, pull-rod actuated coil springs and dampers, anti-roll bar
Steering rack-and-pinion
Brakes (fr/r) ventilated discs
Gearbox Hewland FGA 400 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 585 kilo / 1,290 lbs
Wheelbase / Track (fr/r) 2,781 mm (109.5 in) / 1,734 mm (68.3 in) / 1,581 mm (62.2 in)
Tyres (fr/r) Avon 10.5/23.0 - 15 / 15.0/25.0 - 13

Performance figures
Power to weight 0.84 bhp / kg

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  Article Image gallery (16) RM11 Specifications