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).
Graph showing the percentage increase in BHP over a standard camshaft by using 110° and 108° camshafts.
| Identifier | WestWitteringFiles\K\October1923\ Scan24 | |
| Date | 21th September 1923 | |
| B.H.P. INCREASE % OVER STANDARD CAMSHAFT OBTAINED BY USING 110° AND 108° CAMSHAFTS. % INCREASE IN POWER ABOVE STANDARD R.P.M. 110° CAMSHAFT 108° CAMSHAFT H.J. LIDSEY, 21.9.23. | ||