Lotus 7 (Series 4) 1970 Car Design Interior Exterior

Lotus 7 (Series 4) 1970 Car Design Interior Exterior – The Lotus Seven is a little, basic, lightweight two-seater open-top games auto delivered by Lotus Cars (at first called Lotus Engineering) somewhere around 1957 and 1972. It was planned by Lotus originator Colin Chapman and has been viewed as the encapsulation of the Lotus logic of execution through low weight and effortlessness. The first model was exceedingly fruitful with more than 2,500 autos sold, because of its fascination as a street lawful auto that could be utilized for clubman dashing. After Lotus finished generation of the Seven, Caterham purchased the rights and today Caterham make both packs and completely gathered autos in light of the first outline.

In spite of the fact that the Peter Lucas composed undercarriage of Seven Series 4 is essentially a mils steel tubular casing plan, it is altogether rearranged when contrasted with the procedure Seven models. Utilizing steel square upper and lower side tubes with triangulation and cross individuals with square steel tubes, the fundamental body was basic in configuration. A back casing was produced using round tubular steel. The upper back skeleton served as the connection point for the 71/2 gallon steel fuel tank, the safety belts, and the body to the undercarriage.

With the disposal of a great part of the triangulation utilized as a part of the Series 2 and Series 3 models, the unbending nature of the Series 4 was subject to the vicinity of two welded side boards made of sheet steel. Further rearrangements and quality was given by the front box segment being made of collapsed steel instead of tubular in structure. This took after the design of the Lotus Elan and Europa models. A collapsed steel bulkhead board was utilized as a part of spot of the standard tubular backing. Similarly as with the past Sevens, Arch Motors manufactured the lion’s share of skeleton.

The inside of the Series 4 was an extraordinary change over that of the Series 3 Seven. Specifically it offered more space and permitted taller drivers to fit, in spite of the fact that the pedals were still tight. The dashboard was either painted to give a cowhide grain complete, left in body shading or splashed matt dark. The seats were the same as fitted in the Europa, yet without a headrest. They are made of hardboard secured in froth and dark vinyl. As opposed to the uncovered metal completion of the S3 Seven, the S4 had a legitimately fitted dark rug and a vinyl transmission burrow spread to coordinate the seats.

Four rocker switches controlled the lights, warmer fan (discretionary), 2 speed windscreen wiper, and windscreen washer discretionary, while the pointer switch and front light dunk switches were situated in the “typical” position as storks on the guiding section surprisingly for a Seven. The horn push was situated in the focal point of the directing wheel. The controlling wheel was a 13″ composite talked wheel littler than utilized as a part of the Series 3 with PVC edge.

body type 2 seater roadster
number of doors 2
mm inches
wheelbase 2286 90
track/tread (front) 1245 49
track/tread (rear) 1321 52
length 3702 145.7
width 1537 60.5
height 1124 44.3
ground clearance 114 4.5
length:wheelbase ratio 1.62
kerb weight 590 kg 1301 lb
fuel tank capacity 34.1 litres 7.5 UK Gal 9 US Gal
engine type naturally aspirated petrol
cylinders Straight 4
capacity 1.6 litre
1599 cc
(97.577 cu in)
bore × stroke 80.96 × 77.6 mm
3.19 × 3.06 in
bore/stroke ratio 1.04
overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output
87 PS (86 bhp) (64 kW)
at 5500 rpm
specific output
53.8 bhp/litre
0.88 bhp/cu in
maximum torque
125 Nm (92 ft·lb) (12.7 kgm)
at 4000 rpm
specific torque
78.17 Nm/litre
0.94 ft·lb/cu3
compression ratio 9:1
fuel system 1 We carb
bmep (brake mean effective pressure) 982.4 kPa (142.5 psi)
engine coolant Water
unitary capacity 399.75 cc
aspiration Normal
compressor N/A
intercooler None
catalytic converter N
power-to-weight ratio 147.79 PS/g
108.7 kW/g
145.76 bhp/ton
0.07 bhp/lb
weight-to-power ratio 9.2 kg/kW
15.37 lb/bhp
engine position front
engine layout longitudinal
drive wheels rear wheel drive
torque split N/A
turns lock-to-lock 2.800
turning circle 9.10 m
front suspension I.CS.
rear suspension LA.CS.
brakes f/r Di/Dr
gearbox 4 speed manual
top gear ratio 1
final drive ratio 3.77

Lotus 7 (Series 4) 1970 Car Design Interior Exterior

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