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).
Comparison of high and low lift rockers with ramming using Claudel carburettors, showing performance graphs and valve timing diagrams.
| Identifier | ExFiles\Box 102\5\ scan0094 | |
| Date | 5th October 1931 guessed | |
| R.M.145 COMPARISON OF HIGH & LOW LIFT ROCKERS WITH RAMMING CLAUDEL CARBS. JAPAN. A.{Mr Adams} C/R 5.15 HEAD MACHINED TO GIVE .225 CLCE ROUND INLET VALVE BEST TIMING FOR POWER 112° CAMSHAFT VALVE LIFT .395 VALVE LIFT .344 EX 46 IN 46 3.2 10.5 .013 CLCE C. AS ABOVE BUT INLET VALVE SHROUDED TIMING TOO EARLY FOR MAX POWER. VALVE LIFT .395 VALVE LIFT .344 EX 40 IN 55 4.6 2 .013 CLCE B.H.P. B.M.E.P. R.P.M 500, 1000, 1500, 2000, 2500, 3000, 3500, 4000 60, 70, 80, 90 100, 110, 120 | ||