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).
Graph comparing the Brake Mean Effective Pressure curves for Cadillac and Rolls-Royce products.
| Identifier | ExFiles\Box 125\1\ scan0178 | |
| Date | 13th February 1935 guessed | |
| G.M.C. CORRECTION TO 103 °F.{Mr Friese} BRAKE MEAN EFFECTIVE PRESSURE CURVES CADILLAC & ROLLS-ROYCE PRODUCTS. Graph Axes: Left Y-Axis: B.M.E.P., LBS/SQ. IN., H.P., DEGREES Right Y-Axis: LB/FT., LB/HP. HR. FUEL x 100 ÷ AIR x 10, PER CENT (10) Bottom X-Axis: R.P.M. (÷100) Graph Data Labels: SIXTEEN DUPLEX CARB DOWNDRAUGHT 6.49 C/R BENTLEY SIXTEEN SINGLE UPDRAUGHT 6.49 C/R 20/25 R.R DURATION Table: INLET | EX | MODEL 204 | 206 | CADILLAC V.12 197 | 196 | CADILLAC V.16 210 | 210 | LA{L. A. Archer} SALLE LINE 8. 213 | 230 | STANDARD 20/25 234 | 238 | BENTLEY 3½ LITRE TIMINGS .020 TAPPET CLEARANCE Table: EX. O.{Mr Oldham} | EX. C. | IN. O.{Mr Oldham} | IN. C. | MODEL 25° B. | 1° A.{Mr Adams} | 15° A.{Mr Adams} | 39° A.{Mr Adams} | CADILLAC V.12 23° B. | 6° B. | 15° A.{Mr Adams} | 31° A.{Mr Adams} | CADILLAC V.16 30° B. | T.D.C. | 11 A.{Mr Adams} | 41° A.{Mr Adams} | LA{L. A. Archer} SALLE LINE 8. 44 B. | 6° A.{Mr Adams} | T.D.C. | 40.5 A.{Mr Adams} | STANDARD 20/25 47 B. | 11° A.{Mr Adams} | I.B. | 52.5A | BENTLEY 3½ LITRE Legend Table: Rotated Headers: ENGINE, MOD & SERIAL N°, TEST DATE, POWER & ECONOMY, OBJ. CORR. B.M.E.P. CURVES ---o--- : DUPLEX DOWNDRAFT CARBURETTERS - 6.49 C/R, CADILLAC 452 CU. IN. V-16 ---*--- : STD UPDRAFT CARBURETTERS - 6.49 C/R, CADILLAC 452 CU. IN. V.16 ------- : STD UPDRAFT CARBURETTERS - 6.49 C/R, CADILLAC 368 CU. IN. V-12 ---x--- : *G.M.C. CORRECTION 60°F, CARBURETTERS - 5.59 C/R, LA{L. A. Archer} SALLE 5.9 C/R, 240 CU. INS. 8 CYL. --∆-- : LATEST S.U. CARB., 20/25 5.8 C/R 222 CU. INS. -- -- -- : BENTLEY 6-4 C/R DUPLEX CARB., 222 Cu INS. | ||