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  Lotus 25 Climax
 

  Article Image gallery (61) Chassis (2) Specifications User Comments (3)  
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Country of origin:Great Britain
Produced from:1962 - 1963
Numbers built:7
Predecessor:Lotus 24 Climax
Successor:Lotus 33 Climax
Author:Wouter Melissen
Last updated:December 21, 2009
Download: All images

Engine
Configuration Coventry Climax FWMV Mk 3 90º V8
Location Mid, longitudinally mounted
Construction aluminium alloy block and head
Displacement 1,495 cc / 91.2 cu in
Bore / Stroke 67.9 mm (2.7 in) / 51.6 mm (2 in)
Compression 11.5:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed Lucas Fuel Injection
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 195 bhp / 145 KW @ 9,500 rpm
Torque 160 Nm / 118 ft lbs @ 8,000 rpm
BHP/Liter 130 bhp / liter

Drivetrain
Chassis fibreglass body on aluminium monocoque
Front suspension double wishbones, inboard coil springs over dampers
Rear suspension reversed lower wishbones, top links, twin radius arms, coil springs over dampers, anti-roll bar
Brakes Girling discs, all-round
Gearbox ZF 5DS-10 5 speed Manual
Drive Rear wheel drive

Dimensions
Weight 451 kilo / 994 lbs
Length / Width / Height 3,553 mm (139.9 in) / 1,548 mm (60.9 in) / 787 mm (31 in)
Wheelbase / Track (fr/r) 2,310 mm (90.9 in) / 1,320 mm (52 in) / 1,345 mm (53 in)

Performance figures
Power to weight 0.43 bhp / kg

Race history
Major wins
1962 Belgian Grand Prix (Jim Clark in R1)
1962 British Grand Prix (Jim Clark in R2)
1962 USA Grand Prix (Jim Clark in R3)
1963 Belgian Grand Prix (Jim Clark in R4)
1963 Dutch Grand Prix (Jim Clark in R4)
1963 French Grand Prix (Jim Clark in R4)
1963 British Grand Prix (Jim Clark in R4)
1963 Italian Grand Prix (Jim Clark in R4)
1963 Mexican Grand Prix (Jim Clark in R4)
1963 South African Grand Prix (Jim Clark in R4)
1964 Dutch Grand Prix (Jim Clark in R6)
1964 Belgian Grand Prix (Jim Clark in R6)
1964 British Grand Prix (Jim Clark in R6)
1965 French Grand Prix (Jim Clark in R6)

Resources
Suggested reading
  • The Lotus Book S2, by William Taylor
  • 1½-Litre Grand Prix Racing - Low Power, High Tech, by Mark Whitelock
Related articles
Useful links

  Article Image gallery (61) Chassis (2) Specifications User Comments (3)