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 carburettor systems on a 4 1/4 Litre Bentley B14 engine.
| Identifier | ExFiles\Box 85\4\ scan0183 | |
| Date | 1st April 1937 | |
| 4 1/4 LITRE BENTLEY - UNIT B14 COMPARISON OF CARBURETTER SYSTEMS FIG. II INDUCTION SYSTEMS. 1. TWO S.U. CARBS. 1 1/2" BORE AND STANDARD INDUCTION PIPE. 2. SIX AMAL CARBS 1 3/16" BORE AND NO INDUCTION PIPE. CYLINDER HEAD :- STANDARD 4 1/4 LITRE INLET VALVE 1.600", EXHAUST VALVE 1.400"; CYLINDER BLOCK:- CHROMIUM-PLATED BORES. COMPRESSION RATIO 6.4: FUEL:- D.T.D. 224 OPEN EXHAUST. B.M.E.P. - B.H.P. - - R.P.M. - E.D. / 1.4.37 | ||