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 comparing high and low lift profiles for inlet and exhaust cams.
| Identifier | Morton\M3.4\ img034 | |
| Date | 17th September 1924 | |
| TOP GRAPH: HIGH LIFT .482" LOW LIFT .413" LIFT IN THOUSANDTHS OF AN INCH 400 300 200 100 0 T.D.C 25° 50° 75° 100° 125° 150° 175° 200° 225° 250° 275° CRANKSHAFT DEGREES BOTTOM GRAPH: EXHAUST CAMS HIGH LIFT .484" LOW LIFT .416" LIFT IN THOUSANDTHS OF AN INCH 400 300 200 100 0 T.D.C 25° 50° 75° 100° 125° 150° 175° 200° 225° 250° 275° CRANKSHAFT DEGREES BOTTOM RIGHT CORNER: G.H.F. 17.9.24. | ||