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 showing ignition advance and detonation characteristics for various piston types and compression ratios using Redline petrol.
Identifier | ExFiles\Box 148\1\ scan0164 | |
Date | 1st May 1939 | |
PISTONS IGNITION ADVANCE & DETONATION MAY 1939 S.84 W III N°4 (BENTLEY CAMSHAFT IDN. SYSTEM) 200 PISTONS 330 PISTONS 470 PISTONS FLAT TOP PISTONS COMP RATIO 6.5:1 7:1 8:1 6:1 โ MIN. ADV. FOR MAX. POWER โ TO AVOID DETONATION REDLINE PETROL B.M.E.P. R.P.M. IGN. ADV. DEGREES B.T.D.C C.T.S. | ||