
The Lotus Seven was launched in 1957 after the Lotus Eleven was in limited production. The Seven name was left over from a model that was abandoned by Lotus and would have been a Riley-engined, single-seater that Lotus intended to enter into Formula Two in 1952. However, the car was completed around Chapman’s chassis as a sports car by its backers and christened the Clairmonte Special. The Lotus Seven S2 followed in 1960 and was supplemented by the Lotus Super Seven S2 from 1961. The Super Seven initially used the larger Cosworth modified 1,340cc Ford Classic engine and later examples were fitted with 1,498cc or 1,599cc engines. The Seven S3 was released in 1968 and in 1970, Lotus radically changed the shape of the car to create the slightly more conventional sized Series 4 (S4), with a squarer fibreglass shell replacing most of the aluminium bodywork. It also offered some ‘luxuries’ as standard, such as an internal heater matrix. A stunning three-owner from new, this Lotus 7 has been the subject of a meticulous restoration over an 18 month period by a respected lotus expert. The tubular steel space frame chassis was chemically dipped and any suspect tubes replaced before being etched primed and painted in gloss black. The fiberglass body shell was hand sanded down to the gel coat and repainted in the original specification of tangerine orange. The Lotus twin-cam engine was rebuilt with new rings, bearings, valves, oil pump with the clutch and gearbox overhauled. A new wiring loom was installed, interior re-trimmed and refurbished period/optional Dunlop D1 wheels fitted running Yokohama A539 tyres. This 1971 Lotus 7 is supplied with a V5C registration document, an MoT test certificate which expires in November 2016, a picture album of the restoration and a small history file. A genuine Lotus 7 that sounds incredible and drives superbly with looks to match.
BODYWORK
BODY TYPE 2 seater roadster
NUMBER OF DOORS 2
DESIGNER
DIMENSIONS & WEIGHTS
WHEELBASE 2286 mm 90 inches
TRACK/TREAD (FRONT) 1239 mm 48.8 inches
TRACK/TREAD (REAR) 1308 mm 51.5 inches
LENGTH 3716 mm 146.3 inches
WIDTH 1537 mm 60.5 inches
HEIGHT 1086 mm 42.8 inches
GROUND CLEARANCE 165 mm 6.5 inches
LENGTH:WHEELBASE RATIO 1.63
KERB WEIGHT 594 kg 1310 lb
WEIGHT DISTRIBUTION
FUEL TANK CAPACITY 34 litres 7.5 [9] UK [US] gal.
AERODYNAMICS
DRAG COEFFICIENT
FRONTAL AREA
CDA
POWERTRAIN
ENGINE TYPE naturally aspirated petrol
ENGINE MANUFACTURER
ENGINE CODE
CYLINDERS Straight 4
CAPACITY 1.3 litre
1298 cc
(79.209 cu in)
BORE × STROKE
81 × 63 mm
3.19 × 2.48 in
BORE/STROKE RATIO 1.29
VALVE GEAR overhead valve (OHV)
2 valves per cylinder
8 valves in total
MAXIMUM POWER OUTPUT
(DIN) 71 PS (70 bhp) (52 kW)
at 5700 rpm
MAXIMUM TORQUE
(DIN) 92 Nm (68 ft·lb) (9.4 kgm)
SPECIFIC OUTPUT
(DIN) 40.2 kW/litre
54.7 ps/litre
53.9 bhp/litre
0.88 bhp/cu in
SPECIFIC TORQUE
(DIN) 70.88 Nm/litre
0.86 ft·lb/cu3
ENGINE CONSTRUCTION cast iron block & head
SUMP wet sumped
COMPRESSION RATIO 9:1
FUEL SYSTEM 1 We carb
BMEP (BRAKE MEAN EFFECTIVE PRESSURE) 890.7 kPa (129.2 psi)
MAXIMUM RPM 6000 rpm
CRANKSHAFT BEARINGS 5
ENGINE COOLANT Water
UNITARY CAPACITY 324.5 cc
ASPIRATION Normal
COMPRESSOR N/A
INTERCOOLER None
CATALYTIC CONVERTER N
PERFORMANCE
ACCELERATION 0-80KM/H (50MPH)
ACCELERATION 0-60MPH
ACCELERATION 0-100KM/H
ACCELERATION 0-160KM/H (100MPH)
STANDING QUARTER-MILE
STANDING KILOMETRE
MAXIMUM SPEED 160 km/h (99 mph)
POWER-TO-WEIGHT RATIO Higher is better
119.48 PS/tonne (1000 kg)
0.12 PS/kg
87.88 kW/tonne (1000 kg)
0.09 kW/kg
117.85 bhp/tonne (1000 kg)
0.12 bhp/kg
0.05 bhp/lb
WEIGHT-TO-POWER RATIO Lower is better
11.38 kg/kW
19.01 lb/bhp
FUEL CONSUMPTION
FUEL CONSUMPTION
UNIVERSAL FUEL CONSUMPTION (CALCULATED FROM THE ABOVE)
LITRES/100KM
KM/LITRE
UK MPG
US MPG
CARBON DIOXIDE EMISSIONS
CARFOLIO CALCULATED CO2 ?
VED BAND (UK)
CO2 EFFIZIENZ (DE)
CHASSIS
ENGINE POSITION front
ENGINE LAYOUT longitudinal
DRIVE WHEELS rear wheel drive
TORQUE SPLIT N/A
STEERING rack & pinion
TURNS LOCK-TO-LOCK 2.800
TURNING CIRCLE
FRONT SUSPENSION I.W.CS.ARB.
REAR SUSPENSION LA.WL.CS.
WHEEL SIZE FRONT 5.5
WHEEL SIZE REAR 5.5
TYRES FRONT 165 x 13
TYRES REAR 165 x 13
BRAKES F/R Di/Dr
FRONT BRAKE DIAMETER 216 mm
REAR BRAKE DIAMETER 216 mm
BRAKED AREA
GEARBOX 4 speed manual











