The Bristol 400 is a luxury car produced by the

Bristol Aeroplane Company The Bristol Aeroplane Company, originally the British and Colonial Aeroplane Company, was both one of the first and one of the most important British aviation companies, designing and manufacturing both airframes and aircraft engines. Notable a ...

of Great Britain, its first. After

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

in 1947, BAC decided to diversify and formed a car division, which would later be the

Bristol Cars Bristol Cars were manufacturers of hand-built luxury cars headquartered in Bristol, England. After being placed in receivership and being taken over in 2011, it entered liquidation in February 2020. After the Second World War, the car division ...

company in its own right. BAC inspected the former BMW car factory in what was now a Soviet-controlled East German factory, and returned to Britain with plans for the 327 model and the six-cylinder engine as official war reparations. Bristol then employed BMW engineer Fritz Fiedler to lead their engine development team. In 1947, the newly formed Bristol Cars released their 400 coupé, a lengthened version of the BMW 327. that featured BMW's double-kidney grille. Norbye, Jan P. (1984). BMW - Bavaria's Driving Machines. Skokie, IL, USA: Publications International. ISBN 0-517-42464-9. LCCN 84060309., p. 80 BAC had also acquired

Frazer Nash Frazer Nash was a brand of British sports car manufactured from 1922 first by Frazer Nash Limited founded by engineer Archibald Frazer-Nash. On its financial collapse in 1927 a new company, AFN Limited, was incorporated. Control of AFN passed t ...

who had held a licence to build BMW models pre war. Bristol chose to base its first model on the best features of two outstanding pre-war BMWs, namely the 328's engine, and the 326's frame. These were covered with a mainly steel body but with aluminium bonnet, door and boot skins inspired by the BMW 327's. The Bristol 400 featured a slightly modified version of BMW's six-cylinder

pushrod A valvetrain or valve train is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. The intake valves control the flow of air/fuel mixture (or air alone for direct-injected engines) ...

engine of 1,971 cc (bore 66 mm, stroke 96 mm). This engine, considered advanced for its time due to its hemispherical combustion chambers and very short inlet and exhaust ports, developed 80

horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...

at 4,500 revs per minute and could carry the 400 to a top speed of around 148 km/h (92 mph) with acceleration to match. In order to maintain a hemispherical combustion chamber, the valves had to be positioned at an angle to the head. In order to drive both sets of valves from a single camshaft, the Bristol engine used a system of rods, followers and bell-cranks to drive the valves on the far side of the engine from the camshaft. Owners soon found that setting and maintaining the numerous clearances in the system was difficult but vital to keep the engine in tune. The gearbox was a four-speed manual with

synchromesh A manual transmission (MT), also known as manual gearbox, standard transmission (in Canada, the United Kingdom, and the United States), or stick shift (in the United States), is a multi-speed motor vehicle transmission system, where gear changes ...

on the upper three ratios and a

freewheel Freewheel mechanism In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. An ov ...

on first. The model 400 was the only Bristol to be fitted with a steel and aluminium skin, and had all flat glass, but for the curved rear window, glazed in perspex, which was available to specification with a top hinge. This feature was very welcome on warmer climate export markets, where the sliding door windows provided only marginal ventilation to the passengers. The 400 featured

independent front suspension Independent suspension is any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump on the road) independently of the others. This is contrasted with a beam axle or deDion axle system in w ...

with a

transverse Transverse may refer to: *Transverse engine, an engine in which the crankshaft is oriented side-to-side relative to the wheels of the vehicle *Transverse flute, a flute that is held horizontally * Transverse force (or ''Euler force''), the tangen ...

leaf spring A leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles. Originally called a ''laminated'' or ''carriage spring'', and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, it ...

and a

live axle A beam axle, rigid axle or solid axle is a dependent suspension design in which a set of wheels is connected laterally by a single beam or shaft. Beam axles were once commonly used at the rear wheels of a vehicle, but historically they have als ...

, located by an A-bracket over the differential case and longitudinal

torsion bar A torsion bar suspension, also known as a torsion spring suspension, is any vehicle suspension that uses a torsion bar as its main weight-bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end termi ...

s with transverse arms and brackets at the rear. It featured a lengthy 2895 mm (114 inch) wheelbase and a very BMW-like grille at the front of its long bonnet. The passenger area was very short, with the spare tyre mounted inside the boot on the first cars, but eventually mounted on the rear hinged boot lid, inside an aluminium cover. Bristol 2Litre 2.jpg, Bristol 400 2-litre Bristol 2 litres 4910332282.jpg, 400 2-litre (1949) Bristol 400 Farina 1949 Front.JPG, 400 Farina (1949) Bristol 400 Farina 1949 Heck.JPG, 400 Farina (1949), the lines of which prefigure the 401

References

External links

Bristol Owners Club - Bristol Type 400 - 2 litre Saloon

Buying a Six-Cylinder Bristol

jel450.com Bristol 2 litre engined cars
{{Bristol Cars

400 __NOTOC__ Year 400 ( CD) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Stilicho and Aurelianus (or, less frequently, year 11 ...

Sports sedans Cars introduced in 1947 Rear-wheel-drive vehicles