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).
Performance comparison between a sports engine and a standard engine, covering aspects like noise, running, acceleration, suspension and braking.
| Identifier | WestWitteringFiles\R\2December1927-February1928\ Scan138 | |
| Date | 30th January 1928 guessed | |
| contd :- -2- (5) Silence. The sports engine will be more audible than the standard engine owing to the louvred bonnets that must be fitted. We think that we shall be as good as the standard car for :- (1) Absence of detonation. This is achieved by the turbulent head. (2) Slow running. The new head makes the slow running remark-ably good. We think that we shall be better than the standard car for :- (1) Engine smoothness at all speeds above 30 M.P.H. on top gear and correspondingly on the lower gears. This is due to the rubber engine mounting. (2) Acceleration and hill climbing. In spite of the 16-tooth axle ratio, the Continental Phantom is considerably better than the standard car in this respect due to reduction in body weights and increase in engine power. (3) High speed suspension. Due to the type of spring fitted and the shock absorbers employed, also the weight distribution, at normal tour-ing speeds and at high speeds the suspension of EAC.14 is better than that of a standard car. (4) Braking. Owing to the torque control being fitted to the front axle, it has been made possible to increase the efficiency of the brakes on this car and at the same time increase the security of the occupants under maximum braking. The springing eliminates axle jaggering when pulling up. contd :- | ||