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 of detonation curves for a 21 G.T. car using turbulent and deturbulated cylinder heads with fixed ignition.
| Identifier | ExFiles\Box 101\3\ scan0015 | |
| Date | 9th June 1936 guessed | |
| DETONATION CURVES TAKEN ON 21 G.T. CAR WITH FIXED IGNITION AND USING BOTH TURBULENT & DETURBULATED CYLINDER HEADS TURBULENT HEAD 126 C.C.'S 6 : 1 COMPRESSION RATIO E.60660 DE-TURBULATED " 133 " 5.86:1 LEC. 5002 A DE-TURBULATED HEAD. FIXED DELCO IGN. B " " " R.R. " C STANDARD TURBULENT HEAD DELCO " D " " " R.R. " E IDEAL CURVE FOR POWER SUPPLIED FROM TEST BED. BY L.H.S.{Lord Herbert Scott - Chair} DEGREES ADVANCE ON FLYWHEEL M.P.H. G.M. WHITMAN | ||