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).
List of action points for engine modifications, component testing, and comparisons with other models.
| Identifier | ExFiles\Box 13\3\ 03-page111 | |
| Date | 21th October 1929 guessed | |
| -2- (8) Put in hand a larger bore inlet manifold. All up to item (6) can be tested first (open exhaust) (7)&(8) can be tried later. (9) Look into the limits of dimensions of cylinder block, con. rods, etc. to find why compn. ratios vary between 4.45 and 4.90. Compare with std. 20 H.P. (small bore) and Phantom. Item (8) can be tested when other things are ready by altering inlet flange on the exptl. copper manifold. Hs{Lord Ernest Hives - Chair}/ACL. | ||