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 power output of an E.A.C. engine with different carburettors against R.P.M.
| Identifier | ExFiles\Box 66a\1\ scan0041 | |
| Date | 17th February 1925 | |
| No I L8080 E.A.C. ENG CARBURETTERS POWER OUTPUT WITH DIFFERENT CARBURETTERS E.A.C. ENGINE COMPN RATIO. 4.12 TO 1 STD. INDUCTION SYSTEM & STD. EXH. CUTOUT OPEN CURVES ARE CORRECTED FOR N.T.P. (760 M/M & 15°C) B.H.P. R.P.M. ① R.R. C.H. CARBURETTER ② STD. E.A.C. CARB. SPRING E.71540 RATING 38 OZ / IN ③ EXPERIMENTAL E.A.C. CARB. SPG. 82 OZ/IN ④ STD 40/50 HP ENGINE WITH CUT OUT OPEN ROLLS-ROYCE LIMITED 17 FEB. 25 DERBY | ||