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  Article Image gallery (25) JS21/3 Specifications  
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Country of origin:France
Produced in:1983
Numbers built:4
Author:Wouter Melissen
Last updated:December 12, 2023
Download: All images

Engine
Configuration Ford Cosworth DFV 90º V8
Location Mid, longitudinally mounted
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)
Valvetrain 4 valves / cylinder, DOHC
Fuel feed Lucas Fuel Injection
Aspiration Naturally Aspirated
Power 510 bhp / 380 kW @ 11,000 rpm
Torque 387 Nm / 285 ft lbs @ 9,000 rpm
BHP/Liter 170 bhp / liter

Drivetrain
Chassis aluminium monocoque
Suspension (fr/r) double wishbones, hydro-pneumatic springs and dampers, anti-roll bar
Brakes (fr/r) ventilated discs
Gearbox Hewland FGB 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 540 kilo / 1,191 lbs
Wheelbase / Track (fr/r) 2,630 mm (103.5 in) / 1,800 mm (70.9 in) / 1,652 mm (65 in)
Fuel tank 210 Litre (55.5 Gallon US / 46.2 Gallon Imperial)
Tyres (fr/r) Michelin 23/62 - 13X / 40/66 - 13X

Performance figures
Power to weight 0.94 bhp / kg

Resources
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  Article Image gallery (25) JS21/3 Specifications