Lotus 81/81B (1980-81)

BatteryYuasa
BearingsVandervell
BrakesLockheed
Brake PadsFerodo
Capacity2,993cc
Carburettors-
ClutchBorg & Beck
DampersKoni
EngineFord Cosworth DFV
FuelValvoline
Fuel Capacity38.5 gallons (175 litres)
[35.5 gallons (161.4 litres)]
Fuel SystemLucas
Fuel TanksAerotech
GearboxLotus/Hewland FGA 5-speed
Gearbox Weight-
Half-shaftsLobro
Height Overall-
IgnitionLucas
InstrumentsSmiths/Veglia
Length Overall-
Maximum Power470bhp (min)
OilValvoline
PistonsCosworth
PlugsNGK
RadiatorSerck/Marston
[Serck]
Rim Width Front11in
Rim Width Rear18.5in
[16in]
RingsCosworth
RPM10,800
[11,000]
SteeringKnight rack and pinion
Suspension FrontLower wishbones, upper rocking arms
inboard coil/spring dampers
Suspension RearLower wishbones, upper rocking arms
inboard coil/spring dampers
Track Front70in (1,778mm)
[66in (1,676mm)]
Track Rear64in (1,626mm)
Turbocharger(s)-
TyresGoodyear
[Michelin/Goodyear]
Weight (Engine)360lb (163kg)
Weight (Tub)75lb (34kg)
[85lb (39kg)]
Weight (Dry)-
Weight (Start)-
Formula Weight1,268lb (575kg)
[1,290lb (585kg)]
Wheelbase108in (2,743mm)
[111in (2,819)]
Wheel Diameter-f13in or 15in
Wheel Diameter-r13in

Note: 1981 differences shown in [] brackets