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).
Test results for an S.U. Carburetter with standard and heated induction pipes.
Identifier | ExFiles\Box 31\4\ Scan035 | |
Date | 26th February 1923 | |
S.U. CARBURETTER. The following tests were carried out with a S.U. Carburetter, (variable jet) engine standard timing and standard induction pipe. | R.P.M. | lbs. | pet/hr. pints. | B.H.P. | pet/HP/hr. pints. | Torque at 1ft. (lbs.ft.) | Brake M.E.P. lbs/sq.in | |--------|-------|----------------|--------|-------------------|--------------------------|------------------------| | 500 | 79.5 | 15.0 | 16.54 | 0.9067 | 172.2 | | | 750 | 87.5 | 20.7 | 27.34 | 0.7574 | 189.3 | | | 1000 | 90.25 | 28.0 | 37.60 | 0.7447 | 195.4 | | | 1250 | 90.5 | 36.3 | 47.13 | 0.7702 | 196.0 | | | 1500 | 90.5 | 43.1 | 56.56 | 0.7621 | 196.0 | | | 1750 | 90.5 | 47.5 | 65.99 | 0.7197 | 196.0 | | | 2000 | 89.0 | 52.0 | 74.16 | 0.7011 | 192.8 | | | 2200 | 85.0 | 55.5 | 78.0 | 0.7115 | 184.1 | | | 2400 | 84.0 | --- | 84.0 | ----- | 182.0 | | | 2500 | 78.0 | --- | 81.2 | ----- | 169.0 | | Following with Heated Induction Pipe. | R.P.M. | lbs. | pet/hr. pints. | |--------|-------|----------------| | 500 | 77.5 | 14.5 | | 750 | 86 | 20.2 | | 1000 | 90.25 | 29.5 | | 1250 | 93.0 | 37.0 | | 1500 | 93.0 | 44.5 | | 1750 | 90.0 | 49.5 | | 2000 | 89 | 55 | | 2200 | 86 | 59 | | 2400 | 81.5 | --- | | 2500 | 77.5 | --- | A.{Mr Adams} C. Lovesey | ||