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 for a 4¼ Litre Bentley engine, unit B.19 (Series II) for the 'Paulin' car.
| Identifier | ExFiles\Box 83\3\ scan0097 | |
| Date | 1st March 1939 | |
| 4¼ LITRE BENTLEY (UNIT FOR 'PAULIN' CAR) MAR. 1939 5 UNIT N° B.19 (SERIES II) C/R = 8.7:1 (.030 GASK) ESSO 'ETHYL' CYL. HEAD EX 22954-A IN VALVE EX 23266 EX VALVE EX 23267 PISTONS P. 325 (AEROLITE) 1 7/8 INDN. SYSTEM CAMSHAFT EB. 2746 TIMING AT .020 CLCE. I.O. 3° BT.{Capt. J. S. Burt - Engineer} E.O. 47° BB. I.C. 50° AB. E.C. 8° AT. ① OPEN EXHAUST (NO INTAKE BENDS ETC.) ② FORWARD INTAKE FITTED (FORCED DRAUGHT IN ACCORDANCE WITH 12 x 41 AXLE AND 1.183 : 1 OVERDRIVE) B.H.P. B.M.E.P INDN. PIPE DEPN. "HG R.P.M M.P.H. CTS{C. Trot Salt - Carburation} | ||