Graph comparing the power output of a Solex twin-choke carburetter against the standard carburetter on a Phantom II chassis.
| Identifier | ExFiles\Box 121\2\ scan0139 | |
| Date | 22th January 1930 | |
| V774. SOLEX TWIN CHOKE CARBURETTER ON PHANTOM II ( 32MM. CHOKES IN SOLEX CARBURETTER ) POWER AT ROAD WHEELS IGNITION TIMING. MAG. 18° B.T.D.C. BATTY. 12° B.T.D.C. CUT-OUT CLOSED. CHASSIS N° 19 EX. ROAD WHEEL B.H.P. ENGINE R.P.M. R.R. CARBURETTER 19 Ex. -------x SOLEX " " " ----------o | ||
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).