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 results for a 6-cylinder Renault 80 x 120 engine.
| Identifier | ExFiles\Box 23\4\ Scan039 | |
| Date | 7th April 1911 | |
| Dynamometer test 6 Cylinder Renault 80 x 120. WO13 Power increased rapidly by having air control lever at max. air position, the power increased further 1HP at 1000, 1250 and 1500 engine revs. by breaking joint in induction pipe and allowing extra air this way. The consumption tests and powers were taken with joint broken. Engine had bad periodical timing wheel knocks at 800, 1200, 1800 revs ( generally at all speeds ) Engine did not smoke and was rather stiff, after running this stiffness did not improve and kept constant. Engine runs light equal to 1 gall 3 hrs 15 mins. Pints per HP hour:750 revs 1.36 pts per HP hour 1000 revs 1.35 pts per HP hour. Engine Revs. 750. 1000. 1250. 1500. 1750. 2000. H.P. 13.2. 15.4. 15.7. 15.9. 14.7. 9. Free exhaust +1. +1½. 111 miles runs. taken by Lowe 7/4/11 See Report File "R" - 17-4-11. | ||