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 induction pipe capacities for the 'Japan Unit'.
| Identifier | ExFiles\Box 181\M13\M13.2\ img107 | |
| Date | 23th May 1931 guessed | |
| COMPARISON OF INDUCTION PIPE CAPACITIES JAPAN UNIT INLET VALVE DIA. 1.40" E 56851 C/R 5.13-1 OPEN EXHAUST 112° CAMSHAFT STANDARD ROCKERS 2 CLAUDELS SHORT RAMMING PIPES HEAD MACHINED TO GIVE MIN. CLCE. ROUND INLET VALVE OF .275" 2 CLAUDELS AS ABOVE WITH 9" EXTENSION VALVE LIFT .344" B.H.P. R.P.M. INDUCTION DEPN. LBS./SQ" .013 TAPPET CLCE EX 46.4 IN 46.0 3.2 10.6 | ||