Proposing the use of the J.1. engine in the Bensport chassis, with performance comparisons.
| Identifier | ExFiles\Box 3\4\ 04-page100 | |
| Date | 6th October 1932 | |
| To AG. {HOR.} from E. {Mr Elliott - Chief Engineer} N.4/Hr.6.10.32. C. C. GX, Hn {F. C. Honeyman - Retail orders} , FN, BN {W.O. Bentley / Mr Barrington} , BX. re Bensport(Codename for 3 1/2-litre Bentley). From conversations we have had with Hn. {F. C. Honeyman - Retail orders} regarding the requirements of the Bentley Co's clientele, we should agree that the J.1. engine in the Bensport(Codename for 3 1/2-litre Bentley) chassis should be a very attractive proposition. If we take the brake horse-power at 110 and apply the results obtained from Peregrine(Experimental Bentley car never produced / Aero Engine) on Brooklands to the Bensport(Codename for 3 1/2-litre Bentley) bodies we get the following approximations: BODY. Peregrine(Experimental Bentley car never produced / Aero Engine) Saloon N.Sch.3346. Bensport(Codename for 3 1/2-litre Bentley). Saloon N.Sch.3478. Bensport(Codename for 3 1/2-litre Bentley)s Open M. {Mr Moon / Mr Moore} Sch. 3479. Frontal Area. 20.5 sq.ft. 19.6 sq. ft. 17.1 sq. ft. Engine & B-HP. Peregrine(Experimental Bentley car never produced / Aero Engine) 64 B HP. J.1. 110 B HP. J.1. 110 B HP. Lap Speed on 71 m.p.h. measured. 89 m.p.h. calculated. 102 m.p.h. calculated. Brooklands. We think these speeds and the accelerating likely to be obtained will compete with anything that is being sold as a sports car. The supercharged Bensport(Codename for 3 1/2-litre Bentley) we expect to be a lighter and livelier car, but while the whole design aims at the avoidance of fuss and noise the blower is an unknown quantity yet as applied to a really silent engine. We should recommend using the J.1. engine in conjunction with the Bensport(Codename for 3 1/2-litre Bentley) clutch and gearbox, which would enable the two engines to be largely interchangeable in the same chassis. | ||
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).