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).
Graph comparing the performance of different B.60 cylinder head configurations and ignition advance.
Identifier | ExFiles\Box 132\4\ scan0228 | |
Date | 26th May 1939 guessed | |
B.60 CYLINDER HEAD COMPARISON S. 100 B.60 N°3 UNIT. CAMSHAFT: E.B. 4332 VALVE TIMING I.O. 1° A.T E.O. 27° B.B. I.C. 49° A.B E.C. 11° A.T PISTONS: AEROLITE (FLUSH TOP) INDN. SYSTEM. 2 - 1 1/2 S.U'S ON 1.6 PIPE. ① CYL. HEAD. EXS 1384/1758/1869 (.100 OFF FACE) CAP=111 CC'S. C/R=7:1 ② As ① NON-DETN. TEST BED EXH. SYSTEM. REDLINE. ③ OPEN EXH - B.M.P. ④ NON-DETN POWER ON CYL. HEAD E.B. 3844 ⑤ NON-DETN POWER ON CYL. HEAD E.B. 4706 B.H.P. & B.M.E.P. IGNITION ADVANCE CYL HEAD EXS 1384 Ⓐ MIN. ADV. FOR MAX. POWER. Ⓑ NON-DETN. LINE. IGN. ADV. B.T.D.C. | ||