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).
Test report logging lap times, various temperatures, and oil pressure under different vehicle conditions.
| Identifier | ExFiles\Box 24\5\ Scan227 | |
| Date | 13th June 1930 guessed | |
| MEAN LAP TIME. AIR TEMP. TOP WATER TEMP. BOTTOM WATER TEMP. OIL TEMP. SCUTTLE TEMP. GEAR-BOX TEMP. OIL PRESSURE. CONDITION (2) A.{Mr Adams} TEST. Owing to the cut-out having seized up and pressure for time this test was omitted CONDITION (2) B. C.O. CLOSED. 75.17 | 25° | 90°C. | 180°F.{Mr Friese} | 85°C. | 38°C. | 63°C. | 30 lbs/sq. in. 75.17 | 25° | 94° | 190° | 90° | 39° | 63° | 28 " " Petrol supply starving. Ball valve in petrol line inverted. Porous pot filter left in. CONDITION (2) C. C.O. CLOSED. VENTILATED BONNET. 77.57 | 25° | 89° | 179° | 90° | 35° | 63° | 30 lbs. 77.57 | 25° | 95° | 188° | 100° | 35° | 65° | 27 " CONDITION (2) D.{John DeLooze - Company Secretary} VENTILATED BONNET. FAN BELT REMVD. 78.43 | 25° | 92° | 184° | 88° | 37° | 62° | 30 lbs. 76.03 | 25° | 101° | 198° | 96° | 27.5° | 63° | 28 " Starving in petrol supply. Porous pot filter removed and plate element fitted. NOTE. 'D' test was run before 'C'. | ||