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).
Power curves for a Marmon 34 engine, showing the effect of different valve timing with a Stromberg carburetter.
| Identifier | WestWitteringFiles\J\March1923\ Scan21 | |
| Date | 15th March 1923 | |
| [ "MARMON 34 ENGINE", "POWER CURVES.", "SHOWING EFFECT OF DIFFERENT VALVE TIMING.", "'STROMBERG' CARBURETTER.", "B.H.P.", "REVS. PER MIN.", "H.P. EARLY TIMING. N°1", "H.P. STANDARD TIMING.", "H.P. LATE TIMING. N°2", "VALVE TIMING FOR CURVE N°1", "VALVE TIMING FOR CURVE N°2", "EXH.CLOSES", "INLET OPENS", "14.7°", "2.7°", "INLET CLOSES", "28.2°", "EXH. OPENS", "54.8°", "41.8°", "STANDARD VALVE TIMING", "EXH. CLOSES", "IN. OPENS", "16°", "28°", "IN.CLOSES", "41.5°", "EXH.OPENS", "28.5°", "ACL", "5-3-23", "ROLLS-ROYCE LIMITED", "PRINT ROOM", "15 MAR 23", "DERBY" ], | ||