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).
Performance evaluation and technical specifications of a Graham-Paige 8 car.
| Identifier | ExFiles\Box 126\1\ scan0123 | |
| Date | 25th May 1934 | |
| To E.{Mr Elliott - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to By.{R.W. Bailey - Chief Engineer} c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to MX.{John H Maddocks - Chief Proving Officer} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}9/KW,25.5.34. Graham-Paige 8, 4349 c.c. The most remarkable feature about this car is the performance, the time up Ticknall Hill being better than any car we have ever tried other than the Vulture. The engine is almost as smooth as the Terraplane. A faint whine is audible from the supercharger at low speeds; at ordinary cruising speeds it is practically inaudible. The complete car weighs 33 1/4 cwts. and is geared 3000 r.p.m. at 60 M.P.H., giving a figure = 7650 litres/ton/mile. The figures for the 40/50 and 20/25 are about 6900 and 5900. Brief details of the performance are :- Standton Hill 18.6 secs., Ticknall 51.4 secs., Pistern 46.2 secs. (40/50 56 secs.) (20/25 65 secs.) The acceleration times from 10 M.P.H. are, in top gear :- to 30 m.p.h. 6.8 secs. 40 " 10.1 " 50 " 13.9 " 60 " 18.5 " and using the gears, from 10-60 m.p.h. in 15 secs. The maximum mean speed attainable on Shardlow straight was 83 1/4 m.p.h. On 2nd gear it is impossible to attain a speedometer reading above 65 m.p.h. (actual 57) owing presumably to valve bounce. This corresponds to an engine speed of 4700 r.p.m. Other Details. Weight, Front 15 1/2 cwts., Rear 17 3/4 cwts. Rear axle ratio - 4.27. Effective tyre circumference - 90.5". Hs{Lord Ernest Hives - Chair}/H.Grylls. | ||