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).
The inadequacy of the petrol supply for the 8-litre engine.
| Identifier | ExFiles\Box 13\4\ 04-page160 | |
| Date | 20th May 1933 | |
| Y 7080 To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c.c. to Wor.{Arthur Wormald - General Works Manager} c.c. to By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KT. 20.5.33. 8 LITRE ENGINE PETROL SUPPLY. We find that with the improved power output we are getting from the 8 litre engine, our petrol supply is scarcely adequate with the existing system. The major restriction appears to be in the pipe line to the carburetter which depends on gravity. This pipe line will only pass about 95 pts/hr., whereas our power output with the big engine will require 119 pts/hr. This discrepancy is not quite so large as would appear with these figures, as actually there is a considerable depression in the floatchamber which assists the petrol feed. The vacuum pump also requires attention as actually for the existing continental Phantom it is incapable of keeping the autovac level constant at high speeds. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||