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).
List of requested modifications for 'Sg's Car' (58.GN).
| Identifier | ExFiles\Box 18\3\ Scan343 | |
| Date | 18th August 1932 | |
| x7960. To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}6/KT.18.8.32. 58.GN. Sg{Arthur F. Sidgreaves - MD}'s Car. Will you please make the following modifications to this car. (1) 5¾ : 1 High Compression Head with valves and washers as on 19-EX. (2) W.W. 114º High lift camshaft. (3) Valve springs to Hs.{Lord Ernest Hives - Chair}688, Hs.{Lord Ernest Hives - Chair}665. (4) New thickened central plate to slipper wheel as on 19-EX. (5) Stronger clutch springs to Hs.{Lord Ernest Hives - Chair}652. (6) Clutch pedal to F.84379. Clutch fingers to Hs.{Lord Ernest Hives - Chair}666 Clutch pedal to be set level with brake pedal. Clutch operating lever to Hs.{Lord Ernest Hives - Chair}687. (7) Exhaust system as per Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/KT.10.8.32. (8) Friction in the column as on 20-EX. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||