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 three different induction system setups on a B.2 Unit.
| Identifier | ExFiles\Box 85\4\ scan0117 | |
| Date | 30th January 1935 | |
| COMPARISON OF INDUCTION SYSTEMS BV.76 B.2 UNIT SPECIFICATION - R.H.C/CP 7/EP{G. Eric Platford - Chief Quality Engineer} 30-1-35 AEROLITE PISTONS H 1 (17.0 ozs.) E.B. 2050 CYLINDER HEAD 7.0:1 COMP. RATIO 1.500 DIA. INLET VALVES, 1.300 EXHAUST VALVES OPEN EXHAUST, NO AIR SILENCER ① STANDARD INDUCTION SYSTEM. 1.500 DIA. PIPE 1.375 DIA. CARBURETTERS ② 1.625 DIA. PIPE WITH 1.625 DIA. CARBURETTERS WITH .500 DIA. BALANCE HOLE ③ AS ② BUT WITH 1.062 DIA. BALANCE HOLE B.H.P. R.P.M. B.M.E.P. (LB/□") VALVE TIMING (.020 CLEARANCE) T.D.C. 83° 31° EXH. INL. 50° 50° | ||