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 engine performance curves for different carburettor and camshaft configurations.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan170 | |
| Date | 6th July 1925 guessed | |
| B.H.P. B.M.E.P. R.P.M. C D CURVE NO VIII CARBURETTER COMPARISON CURVES. COMPRESSION RATIO 5.27/1. EAGLE VIII CAMSHAFTS. INLET VALVE TIMING. C EAGLE VIII CARBS. D EAGLE IX CARBS. CORRECTED FOR BAR. & TEMP. T.D.C. I.C. 54° I.O. 10° | ||