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).
Letter on University of Glasgow letterhead from John C. Morrison discussing engine noise, manifold modification, and new engine performance.
| Identifier | ExFiles\Box 134\1\ scan0086 | |
| Date | 13th May 1938 guessed | |
| UNIVERSITY OF GLASGOW to the Principal! I'll invite him in while a test is going on & knock off the silencer & give him some idea of what a noise can be like! After obtaining representative diagrams with the standard system & becoming familiar with the engine I shall cut the manifold and use two separate branches & see what can be done to improve matters. I'll let you know as soon as I get reliable data. I would be interested to hear if you have made a model of your new engine with the OHV Inlet & side exhaust, & if so, how it is performing. I presume you still have the O.H.C. model on which you can try out a system when I get a good one. I am missing my car already & I dont see much prospect of having it on the road before July. Yours faithfully John C. Morrison. | ||