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).
Abstract of data from tests of a Ford 'Model A' engine.
| Identifier | ExFiles\Box 15\6\ Scan128 | |
| Date | 25th November 1929 | |
| The College of the City of New York THE SCHOOL OF TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING ABSTRACT OF DATA from TESTS OF FORD 'MODEL A' ENGINE [Table 1] Actual R.P.M. | Lbs. Scale | B.H.P | Lbs. Fuel per B H-Hr | Inlet Vac 'Hg. | Exhaust Bk.{A. Birkett - Commercial Manager} Pres 'Hg. | Temp. Inlet °C. | Temp. Exh. °F | Temp. H₂O 609 | 67.6 | 13.70 | .692 | 0.4 | 0.4 | 50.0 | 820 | 120 816 | 66.8 | 18.15 | .672 | 0.65 | 0.55 | 51.0 | 970 | 120 1020 | 68.8 | 23.30 | .656 | 1.0 | 0.8 | 51.5 | 1035 | 120 1206 | 68.5 | 27.50 | .656 | 1.4 | 1.45 | 51.5 | 1070 | 120 1397 | 67.9 | 31.60 | .636 | 1.75 | 1.40 | 50.5 | 1080 | 120 1619 | 66.1 | 35.65 | .620 | 2.0 | 1.20 | 51.0 | 1180 | 118 1799 | 63.3 | 37.95 | .620 | 2.25 | 0.95 | 51 | 1270 | 120 2025 | 60.1 | 40.60 | .633 | 2.6 | 0.7 | 48 | 1330 | 120 2200 | 57.0 | 41.80 | .646 | 2.85 | 0.6 | 47 | 1380 | 120 2295 | 54.1 | 41.40 | .662 | 3.00 | 0.6 | 46 | 1390 | 120 Notes for Table 1: Test of Nov. 2, 1929 with Standard Equipment made with Gasoline Sp.{Mr Spinney}gr.{George Ratcliffe} .734 @22°C Standard Carburetor Setting Choke 27/32 Main Jet 19 Comp. Jet 19 [Table 2] 1018 | 70.8 | 24.0 | 1.17 | 1.2 | 1.0 | 22.0 | 1050 | 118 1230 | 68.6 | 28.1 | 1.158 | 1.7 | 1.2 | 20.0 | 1100 | 120 1450 | 66.7 | 32.25 | 1.127 | 2.0 | 1.0 | 18.0 | 1150 | 120 1615 | 65.2 | 35.20 | 1.108 | 2.25 | .85 | 18.0 | 1240 | 120 1824 | 62.9 | 38.25 | 1.115 | 2.65 | .85 | 19.0 | 1280 | 120 2015 | 60.7 | 40.8 | 1.133 | 3.0 | .65 | 16.0 | 1320 | 120 2210 | 56.8 | 41.8 | 1.160 | 3.40 | .65 | 15.0 | 1360 | 120 416 | 68.5 | 9.52 | 1.245 | .35 | .30 | 26.0 | 730 | 120 806 | 70.0 | 18.78 | 1.215 | .85 | .30 | 22.0 | 980 | 125 612 | 68.4 | 13.95 | 1.230 | .55 | .30 | 26.0 | 880 | 128 Notes for Table 2: Test of Nov. 25, 1929. with GODWARD GAS GENERATOR made with “Pyro” Alcohol as fuel. Standard Ford Zenith Carburetor with Standard Choke 27/32” Main Jet 26, Comp. Jet 26 1st Trial setting with Alcohol. | ||