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).
Performance gain from camshaft and compression changes.
| Identifier | ExFiles\Box 125\2\ scan0081 | |
| Date | 25th February 1934 | |
| -4- Ha/Am.7/At.25.2.34. Contd. gain due to the 112º camshaft and higher compression. | ||