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).
Valve lift diagram for a Graham Paige Custom Eight engine, showing lift and velocity against camshaft degrees.
| Identifier | ExFiles\Box 126\1\ scan0128 | |
| Date | 21th June 1934 | |
| VALVE LIFT DIAGRAM — GRAHAM PAIGE CUSTOM EIGHT LIFT IN INCHES VELOCITY IN INCHES PER DIVISION 1 DIVISION = 2° ON CAMSHAFT INLET EXHAUST TIMING WITH .020 CL. EX 221 C° 212.8° IN 36° 58° 36.4° 35.8° TIMING WITH .012 CL D.C 10° EX 230° 220° IN 40° 40° MAX LIFTS IN .3145 Ex .3155 RUNNING CYL .010 F.L.L.S. | ||