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 power output, BMEP, and fuel consumption with an open exhaust versus a fitted car silencer during single-cylinder engine tests.
Identifier | ExFiles\Box 134\2\ scan0027 | |
Date | 23th April 1957 guessed | |
BENTLEY SINGLE CYLINDER TESTS. SHEET 5 V1748. POWER OUTPUT: EFFECT OF SILENCER, (HIGH POWER HEAD). HIGH POWER CYLINDER & HEAD TO LEC. 4075. SINGLE INLET VALVE 1.750" DIA EXHAUST VALVE 1.500" DIA COMPRESSION RATIO = 6.17 ZENITH CARBURETTOR (36 M/M CHOKE). FUEL = DTD 224. VALVE TIMING I.O. 2°E.{Mr Elliott - Chief Engineer} I.C. 28°L. E.O. 51°E.{Mr Elliott - Chief Engineer} E.C. 7°L. BRAKE HORSE POWER OPEN EXHAUST CAR SILENCER FITTED B.M.E.P. (LBS/SQ. IN.) SP.{Mr Spinney} FUEL CONS. (PTS/BHP/HR.) R.P.M. | ||