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).
Blueprint graph comparing engine power curves resulting from different camshaft timings and specifications.
| Identifier | ExFiles\Box 5a\5\ 05-page224 | |
| Date | 4th November 1927 | |
| CHINA ENGINE - CAMSHAFT COMPARISONS ON THE HIGHER OUTPUT ENGINE. OPEN EXHAUST POWER CURVES. ENGINE DETAILS:- COMP'N RATIO 5.25/1. LARGER EX & IN VALVES & PORTS. 46% LARGER ZORPER CARB. CYL.BLOCK MIXTURE PASSAGE 1.200 DIA. STD IRON MANIFOLD. TIMING-116° CAMSHAFT. TAPPET CL'CE = .020 I.O. 15° AFTER T.D.C. I.C. 41° AFTER B.D.C. E.O. 41° BEFORE B.D.C. E.C. 4° AFTER T.D.C. 116° CAMSHAFT. E 55362 STD 110° CAMSHAFT. TIMING-110° CAMSHAFT. TAPPET CL'CE = .020 I.O. 14° AFTER T.D.C. I.C. 38° AFTER B.D.C. E.O. 33° BEFORE B.D.C. E.C. AT T.D.C. B.H.P R.P.M. V.{VIENNA} 739. AEB/A /27 4/11/27 | ||