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 high and low lift rockers, showing BHP and BMEP against RPM.
| Identifier | ExFiles\Box 102\1\ scan0037 | |
| Date | 1st January 1940 | |
| COMPARISON OF HIGH & LOW LIFT ROCKERS WITH SINGLE CARB: JAPAN UNIT INLET VALVE DIA 1·4. C/R 5·13/1 OPEN EX. 112° CAMSHAFT E 55640 CLCE (MIN) OF ·225 MACHINED ROUND INLET VALVE VALVE LIFT ·344 VALVE LIFT ·395 CHOKE DIA. 38 M/M.{Mr Moon / Mr Moore} DIFFUSER DIA. ·625 FREE AREA PAST CHOKE 1·46 D" B.H.P. R.P.M. B.M.E.P. INDUCTION DEPN. INS. Hg. VALVE TIMING DIAGRAM: Ex. IN 3·2 10·6 46·4 46 ·013 CLCE | ||