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 comparison graph of different induction pipes and carburetors.
| Identifier | ExFiles\Box 121\3\ scan0043 | |
| Date | 4th November 1936 guessed | |
| RM.{William Robotham - Chief Engineer}50 COMPARISON OF 1 7/8 THROTTLE DIA S.U. ON TWO DIFFERENT INDUCTION PIPES PIPE A PIPE B EX. 112° CAMSHAFT JAPAN UNIT WITH TREPANNED VALVES HIGH LIFT ROCKERS S 13 C/R OPEN B.H.P. 90 80 70 INDUCTION DEPN. INS. Hg 6 4 2 CLAUDEL C S.U PIPE A COMPARISON OF BEST S.U. INDUCTION PIPE & CLAUDEL CARB. R.P.M. 1500 2000 2500 3000 3500 4000 | ||