
Bentley 4 1/4 Litre,
1937, Gurney Nutting 3-Position-Drophead Coupé
From the Rolls-Royce factory in Derby the second model
to bear the Bentley label was the Bentley 4 1/4 Litre.
For an extra £ 50 a 4 1/4 litre engine was offered from
March 1936 as an option in the already well-received
Bentley 3 1/2 Litre chassis. Within short period sales
of the 3 1/2 Litre declined and in fact the Bentley 4
1/4 Litre had become its substitute. The MR and MX
chassis series introduced in 1939 were the final
development of this model. Features like over-drive top
gear as standard and improved White Metal bearings made
the car ideal, then and now, for unstressed long
distance Continental touring. 1243 cars were built.

Bentley 4 1/4 Litre,
1939, H.J. Mulliner fixed head coupé
|
Wheelbase |
3200 mm |
126
in |
|
|
Track |
front |
1422 mm |
56 in |
|
|
rear |
1422 mm |
56 in |
|
|
Length |
4420 mm |
174 in |
|
|
Width |
1753 mm |
69 in |
|
|
Ground clearance |
155 mm |
6.1 in |
|
|
Kerb weight |
1118 kg |
2465 lb |
|
|
Fuel capacity |
81.8
litres |
18
UK Gal |
21.6
US Gal |
|
Type |
S-6
|
oise
12 valves total
2 valves per cylinder |
|
Bore × stroke |
88.89mm × 114.30mm |
|
3.5 in × 4.5 in |
|
Bore/Stroke ratio |
0.78 |
|
Displacement |
4256 cc
(259.717 cu in) |
|
Unitary capacity |
709.33 cc/cylinder |
|
Compression ratio |
6.40:1 |
|
Fuel system |
2 SU carbs |
|
Aspiration |
Normal |
|
Coolant |
Water |
|
chassis |
|
Engine location |
Front |
|
Engine alignment |
Longitudinal |
|
Turning circle |
12.50 m |
|
Transmission |
4M |
|
Drive |
RWD |
|
Top gear ratio |
0.84 |
|
Final drive ratio |
4.30 |
|
|
|