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  Lotus 21 Climax      

  Article Image gallery (36) Chassis (4) Specifications  
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Country of origin:Great Britain
Produced in:1961
Numbers built:11
Internal name:Type 21
Author:Wouter Melissen
Last updated:March 15, 2019
Download: All images

Engine
Configuration Coventry Climax FPF Mk II Straight 4
Location Mid, longitudinally mounted
Construction aluminium block and head
Displacement 1,498 cc / 91.4 cu in
Bore / Stroke 81.2 mm (3.2 in) / 81.9 mm (3.2 in)
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 2 Weber Carburettors
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 151 bhp / 113 kW @ 7,500 rpm
BHP/Liter 101 bhp / liter

Drivetrain
Body fibreglass reinforced plastic
Chassis steel tubular spaceframe
Front suspension lower wishbones, top rockers, in-board coil springs over dampers
Rear suspension lower wishbones, top links, twin radius arms, coil springs over dampers, anti-roll bar
Steering rack-and-pinion
Front Brakes Girling discs, 267mm (10.5 in)
Rear brakes Girling discs, 241mm (9.5 in)
Gearbox ZF 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 450 kilo / 992 lbs
Length / Width / Height 3,581 mm (141 in) / 1,524 mm (60 in) / 711 mm (28 in)
Wheelbase / Track (fr/r) 2,261 mm (89 in) / 1,346 mm (53 in) / 1,346 mm (53 in)
Wheels (fr/r) 5.5 x 15 / 6.5 x 15
Tyres (fr/r) 5 x 15 / 6 x 15

Performance figures
Power to weight 0.34 bhp / kg

Race history
Major wins
1961 USA Grand Prix (Innes Ireland in 933)

Resources
Related articles
Useful links

  Article Image gallery (36) Chassis (4) Specifications