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).
Dynamometer test report for chassis number 17-G-IV.
| Identifier | ExFiles\Box 133\4\ scan0344 | |
| Date | 3rd June 1929 | |
| Hs.{Lord Ernest Hives - Chair} K/1004 3rd June 1929 REPORT ON DYNAMOMETER TEST CHASSIS NO. 17-G-IV. Engine freedom - very good. Temperature outside radiator 26° Temperature at Carburetter inlet 33° Petrol consumption 28 pints per hour Water consumption (80°) 5 gallons in 4 minutes 10 secs. Axle ratio 11 x 50 Wheel diameter 32¾ Battery ignition as received standard setting. Tappets .006 Average H.P. Curve. H.P. 17.G.IV. Cut-out Test Bed Test Bed Dyno Loss Test Bed. Dyno Loss Test Bed BMEP BMEP 500. 88.9 9.4. 10.7 1.3 11.6 13.7 2.1 97.2 750 94.1 15.00 17.0 2.0 18 21.7 3.7 102.0 1000 93.4 19.5 22.5 3.0 23.6 28.7 5.1 101.3 1500 90.5 26.7 32.7 6.0 31.6 38.9 7.3 91.5 2000 88.2 33.3 42.5 9.2 38 49.5 11.5 87.3 2500 80.6 37.6 48.5 10.9 41.6 54.5 12.9 43.6 77.3 2750 74.0 37.6 49.0 11.4 40.5 53.3 12.8 44.2 68.5 | ||