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).
Fitting a supercharger to a Wraith and future engine and model strategy.
| Identifier | ExFiles\Box 97\1\ scan0052 | |
| Date | 22th May 1937 | |
| -2- Rml1/R.22.5.37. Lammas Graham intake to the blower system, a supercharger could be fitted to this unit, and installed under the existing Wraith bonnet height without difficulty. The centres of the auxiliary drive shaft and the speed are almost exactly right for taking the Graham worm drive. The only query we have to raise is, whether 16% increase in capacity over the existing Wraith engine size is considered adequate by the Sales Dept. for future requirements. If we do not do something on these lines, we think that it should be appreciated it will be at least five years before we shall have any replacement unit to offer for the Wraith and Bentley III. In view of the cost of 6-cylinder cars in America conceivably the 6-cylinder unit may become a Sales' resistance in the highest price class in a few years' time. Rm.{William Robotham - Chief Engineer} | ||