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).
Letter to Smith, Esq. discussing the effects of adjusting valve timing on engine performance.
| Identifier | ExFiles\Box 128\3\ scan0069 | |
| Date | 1st March 1940 | |
| - Smith, Esq. -2- 1st. March, 1940. By adjusting the valve timing slightly later, the lost power at the top would probably be regained, but low speed performance would suffer. Finally, we would say, that although the valve actually opens to the cylinder (after passing through the recessing) as from a "quick lift cam", we can see no advantage to be gained. Yours faithfully, for ROLLS-ROYCE LTD. | ||