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 results report detailing carburetter performance, lap speeds, and fuel/oil consumption.
| Identifier | ExFiles\Box 93\2\ scan0160 | |
| Date | 6th April 1936 | |
| -2- Cut out open. Lap - 90.55 m.p.h. 1/2 mile - 94.74. m.p.h. Result clear. Test 4 2nd Carburetter. Pumps, flex, pipe line in the V but the petrol feed taken up directly under the needle seating. Needle seating - 180" Needle 60° snub nose. Lap 87.38 m.p.h. 1/2 mile 92.78. Result clear, no sign of starving. Derby - Brooklands - Petrol consumption - 7.9 m.p.g. average speed - 44.4 m.p.h. Brooklands - Derby ) Change of carburetter) - Petrol consumption 8.81 m.p.g. as used in test 4 ) average speed 40.28 m.p.h. Derby - Brooklands ) and return including) - Oil consumption - 553.6 m.p.g. mileage at the track ) | ||