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 comparison graphs for typical 1937 side-valve engines, and for Buick and Chrysler 8-cylinder engines.
| Identifier | ExFiles\Box 134\2\ scan0115 | |
| Date | 1st January 1937 guessed | |
| TOP GRAPH: TITLE: COMPARISON OF TYPICAL 1937 SIDE VALVE ENGINES TOP LEFT CORNER: 136 ⑦ LEFT Y-AXIS: B.M.E.P. GRAPH NOTE: CORRECTED TO N T P GRAPH NOTE: TERRAPLANE GIVES 94 H.P. AT 3,700 GRAPH CURVE LABELS: TERRAPLANE, OLDS., LYCOMING TABLE 1: | ENGINE | BORE | STROKE | CU INS. | H.P. / CU. INS. | |---|---|---|---|---| | CADILLAC | 3 1/2 | 4 1/2 | 346 | .39 | | TERRAPLANE 6.13 C/R | 3 | 5 | 212 | .45 | | LYCOMING 6.5 C/R | | | | | | OLDS. 6.1 C/R | 3 7/16 | 4 1/8 | 230 | .414 | BOTTOM GRAPH: TITLE: COMPARISON OF BUICK AND CHRYSLER 8 CYLS. MIDDLE LEFT: ⑧ LEFT Y-AXIS: B.M.E.P. RIGHT Y-AXIS: B.H.P. GRAPH NOTE: N T P CORRECTION GRAPH CURVE LABELS: BUICK, CHRYSLER TABLE 2: | ENGINE | BORE | STROKE | DISP | H.P. PER CU INS. | |---|---|---|---|---| | CHRYSLER 6.3 C/R | 3 1/4 | 4 7/8 | 323 | .38 | | BUICK 5.73 C/R | 3 7/16 | 4 5/16 | 320 | .39 | TEXT BELOW TABLE 2: 8 CYL ENGINES TABLE 3: | MECH. EFF. AT 4000 R P M | |---|---| | BUICK | 69.1 | | CHRYSLER | 65.0 | AXIS VALUES: SHARED X-AXIS (R.P.M.): 500, 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, 4,000, 4,500 TOP Y-AXES (B.M.E.P.): 130, 120, 110, 100, 90 BOTTOM LEFT Y-AXIS (B.M.E.P.): 110, 100, 90 BOTTOM RIGHT Y-AXIS (B.H.P.): 130, 120, 110, 100, 90, 80 | ||