Graph comparing power output against RPM for four different carburettor and intake configurations with a 5.25 compression ratio.
| Identifier | ExFiles\Box 13\4\ 04-page020 | |
| Date | 3rd May 1932 | |
| COMPARISON OF POWER OUTPUT WITH 5.25 COMP RATIO R.M.P 54 1 1/4" CAMSHAFT (E.82448) (LONG TYPE SILENCER COMPLETE) (DOUBLE VALVE SPRINGS) (STANDARD ROCKERS) ① STANDARD P.II. CARB & INTAKE SILENCER ② SEMI-EXPANDING CARB AND INTAKE ③ 2 - 1 5/8 DIA S.U.-CARBS BALANCED BY 1 1/4 DIA HOLE ④ SINGLE 2 1/2 BORE S.U.-CARBS H.P. B.M.E.P. LBS/SQ IN R.P.M. M.P.H. 11 X 41 AXLE 7 X 20" TYRES 3/5-32 | ||
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).