From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of airflow properties for three different Bentley cylinder head designs.
| Identifier | ExFiles\Box 86\1\ scan0048 | |
| Date | 7th December 1933 | |
| FILES. X219. 7.12.33. COMPARISON OF AIR FLOW PROPERTIES OF STANDARD BENTLEY HEAD, LEC.3673 DESIGN, AND 8 LITRE BENTLEY HEAD. STANDARD BENTLEY. 8 LITRE BENTLEY. LEC.3673. VALVE AREA 1.54 sq.in. 3.03 sq.in. 1.765 sq.in. AIR FLOW SQ.IN. VALVE AREA. (1.8" Hg. press diff) 111.4 110.8 ORIFICE COEFF. .63 .84 .83 Hs{Lord Ernest Hives - Chair}/ Std. | ||