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Motor said of this illustration: 'An impression of the finished car which we hope will prove clairvoyant.'
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Details reprinted from article "Lotus 30", Motor, 22 Jan. 1964
ENGINE - Modified Ford V8
Cylinders - V8 with 5-bearing crankshaft
Bore and stroke - 101.6 mm. X 72.9 mm. (4 in. X 2.87 in.)
Cubic capacity - 4,727 cc (289 cu in.)
Piston area - 100.5 sq. in.
Compression ratio - 11:1
Valvegear - Push rod o.h.v.
Carburation - 4 Weber 48 IDM twin choke down-draught carburetters, fed by 3 Bendix
electric fuel pumps from 31½-gallon tanks
Ignition - 12-volt coil, centrifugal timing control
Lubrication - Full flow filter and 3 to 4 gal. dry sump Cooling ..
Water cooling with pump but no fan or thermostat
Maximum power - 350 b.h.p. at 6,500 r.p.m,
Maximum torque - 320 lb./ft.
TRANSMISSION
Clutch - Laycock 8½ in. twin plate diaphragm type with hydraulic operation
Gearbox - 5-speed type 5D5 20 ZF gearbox with synchromesh on all ratios
Internal gearbox ratios 1.00, 1.172, 1.43, 1.765, and 2.50
Final drive - Spiral bevel in unit with gearbox.
Differential - Limited slip
Alternative ratios - 3.0, 3.22, 3.40, 3.56, 3.78, 4.00
CHASSIS
Chassis - 20 gauge sheet metal for first 3 chassis produced, then subsequent cars produced with 18 gauge
Brakes - Girling disc with BR calipers
Brake dimensions - Front and rear, 11 in. dia.
Front suspension - 2 transverse wishbones with Armstrong coil spring/damper units and anti-roll bar
Rear suspension - Double wishbones, Armstrong coil spring/damper units and anti-roll bar
Wheel and tyres - Cast magnesium alloy knock-on wheels with 7 in. front rims and 8½ rear rims;
Tyres - 6.0013 front 7 0013 rear
Steering - Alford and Alder rack and pinion
DIMENSIONS
Length overall 13 ft. 9 in.; Wheelbase 7ft. 10½ in.
Width overall 5 ft. 8 in.; Track 4 ft. 5 in. at front and rear
Height -
Top of screen - 26 in.
Rear wheel humps - 31 in.;
Ground clearance - 4½ in.
Crash bar (if fitted) - 36 in.
Turning circle - 32 ft.
Kerb weight - Approx. 15 cwt, (without fuel but with oil, water, tools, spare wheel, etc.) (1680 lbs, 764 kg)
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Details reprinted from article "Lotus 30", Motor, 22 Jan. 1964
Lotus30.com is dedicated to preserving the history of vintage Lotus 30 and 40 sports racing cars.
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