Graph comparing the Brake Mean Effective Pressure curves of various Cadillac and Rolls-Royce products.
| Identifier | ExFiles\Box 85\3\ scan0038 | |
| Date | 3rd November 1932 | |
| G.M.C. CORRECTION TO 103° F. {Mr Friese} BRAKE MEAN EFFECTIVE PRESSURE CURVES CADILLAC & ROLLS - ROYCE PRODUCTS AXES: Left Y-Axis: B.M.E.P., LBS / SQ. IN., H.P., DEGREES. Right Y-Axis: LB/FT., LB / H.P. HR., FUEL x 100 - AIR x 10, PER CENT (O). Bottom X-Axis: R.P.M. (÷ 100) CURVE LABELS ON GRAPH: SIXTEEN DUPLEX CARB DOWNDRAUGHT 6.49 C/R BENTLEY SIXTEEN SINGLE UPDRAUGHT 6.49 C/R 20/25 R.R TABLE 1: DURATION - CADILLAC V 12: INLET 204, EX. 206 - CADILLAC V 16: INLET 197, EX. 196 - LA {L. A. Archer} SALLE LINE 8: INLET 210, EX. 210 - STANDARD 20/25: INLET 213, EX. 230 - BENTLEY 3 1/2 LITRE: INLET 234, EX. 238 TABLE 2: TIMINGS .020 TAPPET CLEARANCE - CADILLAC V 12: EX. O. {Mr Oldham} 25° B., EX. C. 1° A. {Mr Adams} , IN. O. {Mr Oldham} 15° A. {Mr Adams} , IN. C. 39° A. {Mr Adams} - CADILLAC V 16: EX. O. {Mr Oldham} 23° B., EX. C. 6° B., IN. O. {Mr Oldham} 15° A. {Mr Adams} , IN. C. 31° A. {Mr Adams} - LA {L. A. Archer} SALLE LINE 8: EX. O. {Mr Oldham} 30° B., EX. C. T.D.C., IN. O. {Mr Oldham} 11 A. {Mr Adams} , IN. C. 41° A. {Mr Adams} - STANDARD 20/25: EX. O. {Mr Oldham} 44 B., EX. C. 5° A. {Mr Adams} , IN. O. {Mr Oldham} T.D.C., IN. C. 40.5 A. {Mr Adams} - BENTLEY 3 1/2 LITRE: EX. O. {Mr Oldham} 47 B., EX. C. 11° A. {Mr Adams} , IN. O. {Mr Oldham} 1.B., IN. C. 52.5 A LEGEND (POWER & ECONOMY): - DUPLEX CARB LATEST S.U. CARB. - 20/25 5.8 C/R 222 CU. INS. DUPLEX CARB. - BENTLEY 6.4 C/R DUPLEX CARB. 222 CU. INS. - C.M.C. CORRECTION 60°F LA {L. A. Archer} SALLE 5.9 C.R. DUPLEX CARB. 240 CU INS 8 CYL. - STD UPDRAFT CARBURETTERS - 5.59 C.R. - CADILLAC 368 CU. IN V.12 STD. UPDRAFT - CADILLAC 452 CU. IN V.16 CARBURETTERS - 6.49 C/R - DUPLEX DOWNDRAFT CARBURETTERS - 6.49 C/R - B.M.E.P. CURVES. OBJ. CORR. TEST DETAILS: ENGINE MOD & SERIAL Nº: [Not specified] TEST DATE: NOV. 3. 32 | ||
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).