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).
Trial of a Duesenberg car, detailing its engine and induction system.
| Identifier | ExFiles\Box 128\1\ scan0060 | |
| Date | 1st October 1929 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/An. c. SG.{Arthur F. Sidgreaves - MD} c. WOr.{Arthur Wormald - General Works Manager} Da.{Bernard Day - Chassis Design} C. E.{Mr Elliott - Chief Engineer} EY. DUESENBERG CAR London arranged for us to try one of these cars, the property of a Rolls-Royce owner Mr. Duveen. The car was a two seater sports fitted with a drop hood. We attach (to R's copy) a booklet giving the main details of the engine and chassis, we therefore only mention the points in its construction that seem to be worthy of special attention. The engine is a straight eight of 6870 c.c. displacement. It has two overhead camshafts. The exhaust and inlet manifolds are on opposite sides of the engine. INDUCTION SYSTEM. The inlet manifold is heated, as on the Stutz, by exhaust gas carried through the cylinderhead. The exhaust gas is carried away from the inlet manifold hot spot by a pipe of about 5/8" bore to a separate small auxillary silencer at the back of the car. A double throat carburetter is employed. The water temperature is controlled by thermostatically operated radiator shutters. The net result of the hot spot and controlled water temperature is excellent snap acceleration at all speeds. (VALVE GEAR. The overhead camshafts and auxiliaries are driven by a great quantity of silent chain. Though the | ||