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).
Record of petrol consumption tests for car X459 with different carburettor settings.
Identifier | ExFiles\Box 147\5\ scan0010 | |
Date | 3rd November 1910 | |
Petrol consumption 3800. Section 2300 Laker. by E.P. & Hives on X459 1602 Car 29 & 30/10/10 Distance m.{Mr Moon / Mr Moore} | Petrol used | M.P.G. | Carburettor --- | --- | --- | --- Derby to London. 130 miles including Traffic driving | 8 5/8 gals. | 15.07 | .55 & .8 throats. air valve 9/16" lap 30g spring. Power- Good - Suction noise V.{VIENNA} Fair. London to Derby 46 miles. 25th milestone to 71st | 3 gals. | 15.3 | .5 & .7 throats - air valve 2) ports 1/16" lap 50g spring. Power = Fair Suction noise bad Engine rattles - same. London to Derby 71st milestone to No.1 = 60 miles driving at night | 4 gals. | 15. | Standard .6 & .9 throats Power = V.{VIENNA} Good! Suction noise good. Engine rattles - same eR Recorded by & 3/11/10 | ||