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 different camshaft configurations on the 'Japan' engine model.
| Identifier | ExFiles\Box 5\4\ 04-page241 | |
| Date | 28th November 1930 | |
| CAMSHAFT COMPARISONS ON "JAPAN" TWIN ZENITH CARBS - 26 M/M CHOKES. SMALL INDN PIPE (1.25" INT. DIA) 5.25/1 COMPn RATIO OPEN EXHAUST V 868. B.H.P. (CORRECTED TO 760 M/M) R.P.M. B.H.P. F.M.E.P. 112° CAMSHAFT 116° CAMSHAFT 112° CAMSHAFT LONG DUCT 116° CAMSHAFT LONG DUCT 110° CAMSHAFT SHORT DUCT (ALFORD TYPE SILENCER) VALVE BOUNCE HERE 28/11/30 | ||