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).
Test report on a Downdraught Stromberg Carburetter with a Central Heated Small Capacity Manifold, noting poor performance at low speeds.
| Identifier | ExFiles\Box 122\1\ scan0185 | |
| Date | 27th May 1935 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation} K1033 Hs{Lord Ernest Hives - Chair}/GR.{George Ratcliffe}10/KW.27.5.35. 18-G-IV. Downdraught Stromberg Carburetter with Central Heated Small Capacity Manifold. This manifold was found to be worse than the large capacity floor heated one at low speeds. Distribution is very poor between 5 and 15 m.p.h. full throttle on a fairly steep gradient in top gear. The slow running is uneven and lumpy. The fault of wet spirit entering the ports before being vaporised is still apparent on this manifold, as in the case of the twin Solex one. This manifold was erected with extensions to the ports in order to maintain the carburetter vertical, as it was designed for use on the inclined test bed unit. Hs{Lord Ernest Hives - Chair}/G.Ratcliffe. | ||