Modifications to the inlet valve and cylinder head for 'Bensport' power output.
| Identifier | ExFiles\Box 86\1\ scan0022 | |
| Date | 21th June 1933 | |
| x 219. To RHC. {R. H. Coverley - Production Engineer} from Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 2/KT. 21.6.33. BENSPORT(Codename for 3 1/2-litre Bentley) POWER OUTPUT. We send you herewith a sketch of modifications to the inlet valve and cylinder head suggested by Lr. {Mr Ellor} to obtain better volumetric efficiency. Will you please put in hand a head and valves to the attached Hs. {Lord Ernest Hives - Chair} 1045. We shall adjust the compression ratio by suitable gaskets. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).