Hillman 20 8-cylinder

Hillman Vortic 8
Hillman Vortic 8
Overview
Manufacturer	Hillman Motor Car Co Ltd
Production	1931
Layout
Configuration	straight 8-cylinder
Displacement	2,620 cc (159.9 cu in)
Cylinder bore	63 mm (2.48 in)
Piston stroke	105 mm (4.13 in)
Cylinder block material	cast iron, aluminium alloy die cast pistons, 5-bearing crankshaft with a vibration damper at the front
Cylinder head material	cast iron
Valvetrain	overhead valves with double springs operated by pushrods; timing by chain; inlet manifold square section with 4 branches; 5-branch exhaust manifold with a double outlet
Combustion
Fuel system	carburettor fed from vacuum tank on dash, main reservoir 12 gallons at back of car
Fuel type	petrol
Oil system	forced. pump is outside sump and pressure may be adjusted
Cooling system	water, impeller combined with fan, true honeycomb radiator (protected by a shell), thermostatically-controlled shutters
Output
Power output	58 bhp (43 kW; 59 PS) @2,0 rpm; Tax horsepower 19.69;
Chronology
Predecessor	Hillman Straight Eight
Successor	Hillman Wizard 75

Hillman Straight-Eight
Hillman Straight-Eight
Overview
Manufacturer	Hillman Motor Car Co Ltd
Model years	1929, 1930
Body and chassis
Class	Executive car
Body style	open tourer; saloon; Weymann fabric saloon; Segrave fabric coupé; Segrave fabric sports saloon;
Layout	FR
Powertrain
Engine	2,620 cc (159.9 cu in); straight-8;
Transmission	single plate dry clutch, 4-speed gearbox, Hardy Spicer propellor shaft with metal universal joints is mated with a half-floating spiral bevel driven back axle
Dimensions
Wheelbase	120.5 in (3,061 mm); track 56 in (1,422 mm);
Length	175 in (4,445 mm)
Width	68.25 in (1,734 mm)
Kerb weight	fabric saloon 24 cwt, 2,688 lb (1,219 kg); Vortic all-steel saloon 32½ cwt, 3,640 lb (1,650 kg);
Chronology
Predecessor	none
Successor	Hillman Vortic 8

The Hillman Straight Eight and its successor the Hillman Vortic were moderate priced mid-sized 20 tax-horsepower executive cars made by Hillman from 1929 to 1930. The lowest priced eight-cylinder car on the market the car was scarcely in full production when sales were hit by the onset of the Great Depression.

This pair of cars has been described as "the complete lemon". The straight eight engine was subject to bearing failure. The name was changed to Vortic and some modifications made including a silent third gear but it was to try to sell off unwanted stock. They were still offered in 1932.^[6]

The straight eight was replaced in Hillman's catalogue in April 1931 by their six-cylinder Wizard 65 and 75.

^ ^a ^b ^c ^d ^e ^f ^g ^h Cars Of 1929. The Times, Thursday, Oct 04, 1928; pg. 8; Issue 45015
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Cars Of To-Day. The Times, Tuesday, May 28, 1929; pg. 22; Issue 45214
^ Motor Show. The Times, Monday, Oct 15, 1928; pg. 24; Issue 45024
^ ^a ^b ^c Culshaw and Horrobin (1974). Complete Catalogue of British Cars London: Macmillan. ISBN 0-333-16689-2.
^ Cite error: The named reference TT45952 was invoked but never defined (see the help page).
^ Michael Sedgwick and Helen Marshall, Cars of the 1930s, Batsford, London, 1970 ISBN 0713404655 OCLC 471164043

[TT45015-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Cars Of 1929. The Times, Thursday, Oct 04, 1928; pg. 8; Issue 45015

[TT45214-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Cars Of To-Day. The Times, Tuesday, May 28, 1929; pg. 22; Issue 45214

[TT45024-3] Motor Show. The Times, Monday, Oct 15, 1928; pg. 24; Issue 45024

[C&H-4] Culshaw and Horrobin (1974). Complete Catalogue of British Cars London: Macmillan. ISBN 0-333-16689-2.

[TT45952-5] Cite error: The named reference TT45952 was invoked but never defined (see the help page).

[6] Michael Sedgwick and Helen Marshall, Cars of the 1930s, Batsford, London, 1970 ISBN 0713404655 OCLC 471164043

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