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).
Technical specifications and test results for a Buick car.
| Identifier | ExFiles\Box 124\3\ scan0101 | |
| Date | 16th December 1920 | |
| X.3317/6 16.12.20. RE "BUICK" CAR. Weight complete with - 4-seater open touring body - hood and windscreen. One spare wheel, petrol, oil and water included - Front 13 cwts. Rear 15 " 3 qrs. Total - 1 ton. 8 cwts. 3 qrs. Gear Ratios. Direct 4.16 to 1 2nd. 7.36 to 1 1st. 13.22 to 1 Reverse 17.5 to 1 1,000 R.P.M. of the engine = 24 M.P.H. on the road. Dynamometer Test. Eng:Revs. Pts. per hr. HP. 500 10.43 750 15.6 1000 20 21.2 1250 25 25.4 1500 28 28.6 1750 29 30.2 2000 31 27.9 Bore and stroke. 3.375 x 4.5" Valve Lift. Inlet .2845" Exhaust .297" Cu. Capacity of Combustion Chamber - 13 cu.ins. Compression. 69 lbs. Vacuum in induction pipe at 1000 Revs: =1.375 mercury. Ignition Timing. Retarded 7º P.T.D.C. Advanced. 10.5º B.T.D.C. Governor Advanced 25º B.T.D.C. Contd. | ||