Performance comparison graph between a 2.500 Bore Single SU carburettor and an RR Updraught Expanding carburettor.
| Identifier | ExFiles\Box 179\2\ img242 | |
| Date | 22th August 1932 | |
| COMPARISON BETWEEN 2.500 BORE SINGLE S.U. CARB AND R.R. UPDRAUGHT EXPANDING CARB (LEC 2972) TESTS WITH OPEN EXHAUST " " W.W. 114 (E82LL8) CAMSHAFT 4.8:1 COMPRESSION RATIO AREA PAST S.U. CARB - 1.9" □ " " R.R. " - 2.08" □ BHP RPM MEP LB/sq" INDUCTION TEMP °C SU RR V1304 HHF 22.8.32 | ||
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).