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 comparison graph for Standard & Sports Phantom engines, plotting Brake Horse Power and BMEP against RPM.
| Identifier | ExFiles\Box 65a\1\ scan0291 | |
| Date | 15th February 1929 | |
| COMPARISON OF STANDARD & SPORTS PHANTOM ENGINES. STD ENGINE COMP. RATIO = 4.1 FLAT CYLINDER HEAD. STD. INDUCTION PIPE SPORTS ENGINE COMP. RATIO = 4.75 ANTI-DETONATING CYL HD.{Mr Hayward/Mr Huddy} WEIR INDN PIPE (SCH 965) VERTICAL CLAUDEL HOBSON CARBURETTOR on WEIR PIPE BRAKE HORSE POWER B.H.P. STANDARD ENGINE SPORTS ENGINE B.M.E.P. STANDARD ENGINE SPORTS ENGINE B.M.E.P. (LBS / □") R P M OF ENGINE V251 15-2-29 | ||