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).
Blueprint graph comparing high and low lift profiles for E.A.C. inlet and exhaust camshafts.
| Identifier | Morton\M3.4\ img033 | |
| Date | 17th September 1924 guessed | |
| E.A.C. CAMSHAFTS. INLET CAMS HIGH LIFT. .482" LOW LIFT. .413 LIFT IN THOUSANDTHS OF AN INCH .400 .300 .200 .100 O T.D.C. 25° 50° 75° 100° 125° 150° 175° 200° 225° 250° 275° CRANKSHAFT DEGREES. EXHAUST CAMS. HIGH LIFT. .484" LOW LIFT. .416 | ||