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 engine advance curves for Delco Remy governors on Bentley engines, comparing a deturbulated head with a standard head.
| Identifier | ExFiles\Box 86\1\ scan0205 | |
| Date | 2nd July 1936 guessed | |
| CURVES REQUIRED ON DELCO REMY GOVERNORS FOR BENTLEY 1 DETURBULATED HEAD 2 STD. HEAD CURVES OVERCOME DETONATIONS AT LOW SPEEDS AND GIVES MAX. POWER AT HIGH SPEEDS Handwritten Note: Wyman, what do we now correct this to to avoid detonations 18-30tt. P.H on No.1. petrol CM Axis Labels: Y-Axis: FLYWHEEL + ADVANCE B.T.D.C. X-Axis: ENGINE R.P.M. Graph Labels & Legend: (1) (2) A DE-TURBULATED HEAD B STD HEAD Data points are marked on the curves as A, B, C, and D.{John DeLooze - Company Secretary} | ||