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).
Performance graph comparing two different carburetter systems for a 3½ Litre Bentley engine, unit B.7.
| Identifier | ExFiles\Box 85\4\ scan0182 | |
| Date | 1st December 1937 | |
| 3½ LITRE BENTLEY. - UNIT B.7 COMPARISON OF CARBURETTER SYSTEMS FIG. I INDUCTION SYSTEMS. 1. Two S.U. CARBS 1 3/8" BORE AND STANDARD INDUCTION PIPE. 2. SIX AMAL CARBS 1 3/16" BORE AND NO INDUCTION PIPE. CYLINDER HEAD:- STANDARD 3½ LITRE HEAD. INLET VALVE:- 1.400" DIA. EXHAUST VALVE:- 1.300" DIA. COMPRESSION RATIO:- 6.4:1 FUEL:- D.T.D. 224. OPEN EXHAUST. B.M.E.P. B.H.P. -R.P.M- ① ② E.I.D. / 1.12.37 | ||