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Petersen 4.5 Litre Blower
The Petersen 4.5 litre Blower is an authentic recreation of the charismatic 'blowers' developed for racing by Sir Henry Birkin and his team in the late 1920s. W.O. Bentley himself was not very keen to see his cars supercharged fearing that they would be unreliable.
We feel however, that the petersen Blower would have met his approval, especially if the reactions of our satisfied customers are anything to go by.
Acceleration and performance at speed are breathtaking. With the powerful whine of the supercharger to complement the raucous exhaust, a stunning 'entrance' to any event is guaranteed.
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SPECIFICATIONS:
CHASSIS: |
We can build on either a 1930's Bentley or Rolls Royce chassis totally stripped, strengthened and stiffened to be closer to the W.O. Bentley specifications. New crossmembers, suspension mounts, etc., are then fitted to accommodate the new engine and supercharger. 132" wheelbase. Original registration number and documents. |
ENGINE: |
4.5 litre Bentley 'R' - Type, 6 cylinder fully rebuilt and 'blue printed' modified to drive supercharger. Fitted with special camshafts, pistons, flywheel and Petersen heavy duty clutch. |
THE 'BLOWER': |
Our superchargers are built specially for us and look very similar to the Amhurst Villiers unit used by the Birkin racing team. |
POWER OUTPUT: |
In excess of 235 B.H.P. |
GEARBOX: |
Modified Mk VI Bentley unit fitted with Laycock/Petersen 'P' - Type overdrive which gives a 26% increase on fourth gear. |
REAR AXLE: |
Rolls Royce 25/30 or 20/25 |
FRONT AXLE: |
Rolls Royce 20/25 |
BRAKES: |
Updated power servo hydraulic with specially made 17" diameter racing drums with twin leading shoe system on the front axle (14" drums). |
WHEELS & TYRES: |
700x19" 70 spoke wires; 700x19" tyres. |
BODY: |
Vanden Plas Le Mans style. Ash frame, aluminium skin, fabric covered. Green Wilton carpet and Connolly leather upholstery. Black double duck hood and tonneau cover. Fitted toolbox. |
DASHBOARD: |
Machine-turned aluminium fitted with large aircraft-type instruments made specially for us to the Birkin team car pattern. Period illumination. |
RADIATOR: |
4.5 litre Blower type with heavy duty core. Mechanical fan which can be supplemented with electric fan if required. |
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All components not new which are used in our cars are completely reconditioned to the highest standards. Many of the fittings are made by us: filler caps, stone guards, footplates, fuel tanks, radiators, wheels, hubs, superchargers, bodies, trim, dashboards as well as many other smaller parts. These are supplied regularly to members of The Bentley Drivers' Club for their cars and we believe set the standard.
All specifications quoted are subject to availability of donor chassis and power units, as well as changes in road and traffic regulations. |
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