Bugatti Type 46

{{One source|date=May 2007}}

File:1933 Bugatti Coach Type 46, 140cv 5350cc 140kmh (inv 0914) photo 2.JPG

The Bugatti Type 46 and later Type 50 were large enclosed touring cars and along with the Type 50B racing version, were all produced in the 1930s. Their relative ubiquity and numbers, combined with their styling caused them to sometimes receive the appellation of being a Molsheim Buick.{{Citation needed|date=March 2019}}

Type 46

The Type 46 used a 5.4 L (5359 cc/327 in3) straight-8 engine with 3 valves per cylinder driven by a single overhead camshaft. Power was reported at 140 hp (104 kW). The engine was undersquare like most Bugatti designs with an 81 mm bore and 130 mm stroke.

The Type 46 was a large car, weighing 2500 lb (1134 kg) and riding on a 138 in (3505 mm) wheelbase. 400 examples were produced from the end of 1929 through 1936. The three speed gearbox was in unit with the live rear axle, resulting in high unsprung weight, and a relatively harsh ride. Despite this, the model was a favourite of Le Patron, and it remained in production longer than might have been expected

=Type 46S=

A supercharged version, the Type 46S, was introduced in 1930. With just 160 hp (119 kW), from its Rootes-type blower, it was not a great success. 18 supercharged cars were made in all.

Type 50

The Type 50 was a sporting coupe version of the Type 46. It rode on a shorter wheelbase, 122 in (3099 mm), and used a smaller 5.0 L (4972 cc/303 in3) version of the engine. This engine had squarer dimensions, however, at 86 by 107 mm, and twin camshafts actuated two valves per cylinder. Power output was impressive at 225 hp (167 kW). Many cars had landaulet roofs and Bugatti-style two-tone paint.

===Type 50T===

Image:Bugatti-T50-model.jpg

The Type 50 Touring was a sedan version of the Type 50. It used the same 138 in (3505 mm) wheelbase as its predecessor, the Type 46, but shared the 5.0 L engine of the Type 50. The engine was tuned for torque, though, with just 200 hp (149 kW) on tap. In total, 65 Type 50 and Type 50T Bugattis were produced between 1930 and 1934.

=Type 50B=

A racing version, the Type 50B, was also produced. It shared the 5.0 L 2-valve engine but was blown to produce {{Convert|470|hp|0|abbr=on}}. It was used from 1937 through 1939. A pair of these engines were installed in the Bugatti P100 airplane, with specially cast magnesium crankcases.

Technical data

class="prettytable"
---- bgcolor="#DDDDDD"

! width="20%"|

! width="16%"|Type 46

! width="16%"|Type 50

! width="16%"|Type 50B

! width="16%"|Type 50B III

---- bgcolor="#EEEEEE"

|Engine: 

colspan="4" align="center" |Front mounted 8-cylinder in-line engine
---- bgcolor="#EEEEEE"

|displacement

align="center" |5359 cm3align="center" |4972 cm3align="center" |4741 cm3align="center" |2985 cm3
---- bgcolor="#EEEEEE"

|Bore × stroke: 

align="center" |81 × 130 mmalign="center" |86 × 107 mmalign="center" |84 × 107 mmalign="center" |78 × 78 mm
---- bgcolor="#EEEEEE"

|Max power at rpm: 

align="center" |140 hp at 3 500 rpmalign="center" |225 hp at 4 000 rpmalign="center" |402 hp at 5 300 rpmalign="center" |275 hp at 4 500 rpm
---- bgcolor="#EEEEEE"

|Valve control: 

align="center" |1 overhead cam shaft, 3 valves per cylinder, SOHCcolspan="3" align="center" |2 overhead camshafts, 2 valves per cylinder, DOHC
---- bgcolor="#EEEEEE"

|Compression

align="center" |align="center" | 7.5:1colspan="2" align="center" |
---- bgcolor="#EEEEEE"

|Carburetor

align="center" |Smith-Bariquandcolspan="2" align="center" | 2 Zenithalign="center" |
---- bgcolor="#EEEEEE"

|Upload

align="center" | Naturally Aspiratedcolspan="4" align="center" |Roots compressor
---- bgcolor="#EEEEEE"

|Gearbox

colspan="5" align="center" |4-speed manual
---- bgcolor="#EEEEEE"

|suspension front: 

colspan="2" align="center" |Rigid axle, semi-elliptic leaf springscolspan="2" align="center" |Solid axle, semi-elliptic leaf springs
---- bgcolor="#EEEEEE"

|suspension rear: 

align="center" |Live axle, quarter-elliptic leaf springscolspan="3" align="center" |Live axle, reversed quarter-elliptic leaf springs
---- bgcolor="#EEEEEE"

|Brakes: 

colspan="5" align="center" |drums, all-round
---- bgcolor="#EEEEEE"

|Chassis & body

colspan="2" align="center" |Cast-iron block and headcolspan="2" align="center" |steel ladder frame
---- bgcolor="#EEEEEE"

|Wheelbase

colspan="2" align="center" |310 cmcolspan="2" align="center" |260 cm
---- bgcolor="#EEEEEE"

|Dry weight

colspan="4" align="center" |
---- bgcolor="#EEEEEE"

|Top speed: 

align="center"|align="center"|170 km/hcolspan="2 align="center"|
---- bgcolor="#EEEEEE"

References

{{Reflist}}

{{Bugatti road car timeline}}{{Bugatti}}

46

Category:24 Hours of Le Mans race cars

Category:1930s cars