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).
Graph plotting suction in inches of H₂O against RPM, comparing a Marvel and a Stromberg carburetor for a 1934 Series 8-40 engine.
| Identifier | ExFiles\Box 133\4\ scan0008 | |
| Date | 1st January 1934 | |
| 1934 SERIES 8-40 ENGINE. ---MARVEL CARBURETOR FLOW NO.34 ---STROMBERG CARBURETOR FLOW NO.18 SUCTION - INCHES OF H₂O R.P.M. IN HUNDREDS | ||