Lancia Theta (1913 - 1918)

Details
Layout FR layout
Powertrain
Engine 4941.72 cc straight-4 sidevalve
Transmission 4-speed manual gearbox
Dimensions
Wheelbase 310 cm (122.0 in)
337 cm (132.7 in)(long version)
Length 465 cm (183.1 in)
500 cm (196.9 in)(long version)
Width 161.5 cm (63.6 in)
161.9 cm (63.7 in)(long version)
Curb weight 1,060 kg (2,337 lb)

 

Technical characteristics - Lancia Theta chassis
Configuration
Bodywork : chassis Engine position : front , longitudinal Drive : rear
Dimensions and weights
Overall dimensions (length × width × height in mm ): 4650-5000 × 1615-1619 ×? Minimum turning diameter :
Wheelbase : 3100-3370 mm Track : front 1330 - rear 1330 mm Minimum ground clearance :
Total seats : Trunk : Tank : 80 liters
Masses / in running order: 1060  kg
Mechanics
Engine type : Type 61 with 4 cylinders in line , monobloc (in cast iron), fixed cylinder head, crankcase in aluminum alloy , crankshaft on three supports; compression ratio 5.2: 1,; forced lubrication, with pump; capacity of the lubrication circuit 10 liters; water cooling , forced circulation, finned tube radiator, mechanical fan; Displacement : ( bore 110 mm, stroke 130 mm) 4941.72  cm³
Distribution : side valves (2 valves per cylinder) controlled by aside camshaft (in the crankcase) driven by gears Power supply : through a pump with carburetor lampholder Lancia vertical (with 3 nozzles)
Engine performance Power : maximum CV 70 at 2,200 rpm
Ignition :high voltage magnet ( Bosch ) with manually adjustable advance value Electrical system : 6 Volts, Dynamo 12.5 Ah , Battery 120 Ah
Clutch : dry multi-plate (9 pairs of plates) Gearbox : ( light alloy box) 4-speed plus reverse with side lever control; gear ratios: 4.651: 1 in first, 2.326: 1 in second, 1.550: 1 in third, direct drive (1: 1) in fourth, 3.521: 1 in reverse; final reduction ratio (bevel gears) 3.0625: 1 (16/49), the following other ratios are also available: 3.467: 1 (15/52) and 3.600: 1 (15/54)
Frame
Car body in steel , with longitudinal and cross members, shaft transmission with cardan joints .
Steering driving position on the right; screw and wheel steering; steering column adjustable to 3 different angles (34 °, 37 ° or 40 °)
Suspensions front: rigid axle and semi-elliptic longitudinal leaf springs / rear: rigid axle with semi-elliptic longitudinal leaf spring
Brakes front: drum / rear: drum, hand brake (mechanical) acting on the rear wheels
Tires 820 x 120 or 835 x 135 or 880 x 120 / Rims : wooden with spokes (on request: disc, sheet metal)
Performance declared
Speed : (max speed in the various gears: 26 in 1st, 52 in 2nd, 77 in 3rd, over 120 in 4th) about 120  km / h Acceleration :

 

Lancia Theta on Wikipedia

 

 


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