#w.o.bentley

[monkeyssalad-blog]

146 Bentley 3/4.5 litre (1925) XY 29 by Robert Knight Via Flickr: Bentley 3- 4.5ltr. (1919-30) Engine 4398cc S4 Production 665 Chassis 1089 Original 3 litre Engine Number 1089 Body 4 seat Gurney Nutting Competition Number 238 Roger Collings Owner Mrs. L Collings Competition Class 11 Special Sports-Cars and Saloons over 3000cc Unsupercharged and over 2250cc Supercharged Registration Number XY 29 (London) BENTLEY SET www.flickr.com/photos/45676495@N05/albums/72157623759855498/ The Bentley 3 Litre was a car chassis designed by Walter Owen (W O) Bentley it was developed from 1919 and made available to customers' coachbuilders from 1921 to 1929. The 3 Litre was delivered as a running chassis to the coachbuilder of the buyer's choice. Bentley referred many customers to their near neighbour Vanden Plas for bodies. Dealers might order a short cost-saving run of identical bodies to their own distinctive design. Most bodies took the simplest and cheapest form, tourers, but as it was all bespoke or custom coachwork there was a wide variation. The 3.0 L (2,996 cc or 183 cu in) straight-4 engine was designed by ex-Royal Flying Corps engineer Clive Gallop and was very advanced for the time, It was one of the first production car engines with 4 valves per cylinder, dry-sump lubrication and an overhead camshaft. The four valve SOHC Hemi design, with a bevel-geared shaft drive for the camshaft, was based on the pre-World War I 1914 Mercedes Daimler M93654 racing engine. Un-tuned power output was around 70 hp (52 kW), allowing the 3 Litre to reach 80 mph (129 km/h). The Speed Model could reach 90 mph (145 km/h); the Super Sports could exceed 100 mph (161 km/h). There were three main variants of the 3-litre and they became known by the colours commonly used on the radiator badge BLUE was the standard model with 117.5 in (2,984 mm) wheelbase from 1921 to 1929 or long 130.0 in (3,302 mm) wheelbase from 1923 to 1929 RED This used a 5.3:1 high compression engine in the 117.5 in (2,984 mm) wheelbase chassis and was made from 1924 to 1929 GREEN Made between 1924 and 1929 this was the high performance model with 6.3:1 compression ratio and short 108 in (2,743 mm) wheelbase chassis. 100 mph (160 km/h) performance was guaranteed As time went on and replacement engine parts became hard to source or even obsolete many 3 litre Bentleys were upgraded to the 4398cc power plant found in the Bentley 4.5 litre. The 4.5 litre was built 1927-31 with production overlapping the 3 litre for its first two years. A total of 720 4½ Litre cars were produced between 1927 and 1931, including 55 cars with a supercharged engine popularly known as the Blower Bentley. The displacement was 4,398 cc producing 110 hp (82 kW) for the touring model and 130 hp (97 kW) for the racing model. The engine speed was limited to 4,000 rpm Diolch am 95,901,601 o olygfeydd anhygoel, mae pob un yn cael ei werthfawrogi'n fawr. Thanks for 95,901,601 amazing views, every one is greatly appreciated. Shot 07.08.2022, at the VSCC Prescott Speed Hill Climb, Prescott, Gloucestershire REF 162-146

[monkeyssalad-blog]

162 Bentley 4½ ltr. Tourer (1927-31) Australian Registered by Robert Knight Via Flickr: Bentley 4.5 litre Tourer (1927-31) Engine 4398 cc S4 OC Production 720 (includes 55 Blower Bentley's) Body Unknown Registration Number 79496 H (New South Wales, Australia) BENTLEY SET www.flickr.com/photos/45676495@N05/albums/72157623759855498/ Designed by W O Bentley (Walter Owen Bentley) and built at Cricklewood, the Bentley 4½ litre is a British car based on a rolling chassis built by Bentley Motors, in model years 1927-31, as a more powerful replacement for the Bentley 3 litre, although the two models did coexist until 1929. Bentley buyers purchased a rolling chassis and selected their desired bodies, mostly Saloons and Tourers, to be built to their own specification from a variety of independent coach builders. A total of 720 4½ Litre cars were produced between 1927 and 1931, including 55 cars with a supercharged engine popularly known as the Blower Bentley. A 4½ Litre Bentley won the 24 Hours of Le Mans in 1928. Though the supercharged 4½ Litre Bentley's competitive performance was not outstanding, it set several speed records The 4½ litre was a heavy car, weighing 1,625 kg (3,583 lb), and spacious, with a length of 4,380 mm (172 in) and a wheelbase of 3,302 mm (130.0 in), it was also well balanced and with nimble handling. The robustness of the 4½ Litre's lattice chassis made of steel and reinforced with ties, was needed to support the heavy cast iron inline-four engine. The 4398cc engine was fed by twin SU carburettors and dual ignition with Bosch magnetos with an output of 110hp for the touring model and 130 hp for performance and racing models, with the engine speed limited to 4000 revs. A single, crossflow, overhead camshaft actuated four valves per cylinder, inclined at 30 degrees. This was a technically advanced design at a time where most cars used only two valves per cylinder in a side-valve cylinder head. The camshaft was driven by bevel gears on a vertical shaft at the front of the engine, as on the 3 Litre engine. Brakes were conventional, consisting of 17-inch (430 mm) drum brakes finned for improved cooling and operated by rod. Semi-elliptic leaf springs were used at front and rear 79496 H No details of this car, other than it carries a New South Wales, historic vehicle registration number. Together with a badge of the Vintage Sports Car Club of Victoria Diolch am 95,917,405 o olygfeydd anhygoel, mae pob un yn cael ei werthfawrogi'n fawr. Thanks for 95,917,405 amazing views, every one is greatly appreciated. Shot 07.08.2022, at the VSCC Prescott Speed Hill Climb, Prescott, Gloucestershire REF 162-162