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).
Methods to increase power from a 20HP engine and requesting an estimate on the expected results.
| Identifier | WestWitteringFiles\P\2October1926-December1926\ Scan031 | |
| Date | 2nd November 1926 | |
| TO E.{Mr Elliott - Chief Engineer} ) FROM R.{Sir Henry Royce} HS.{Lord Ernest Hives - Chair} ) ORIGINAL R9/M2.11.26. 20HP. X5770 X5771 X5230 Several times we have started out to get more power from this engine by - (1)........ Improved exhaust. (2)........ Slightly higher compression. (3)........ Greater volumetric efficiency. Will E.{Mr Elliott - Chief Engineer} make an estimate of what we should expect, and if we are not getting it, Derby say why? R.{Sir Henry Royce} | ||