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 power variations with different induction systems for a 500cc Rudge unit.
| Identifier | ExFiles\Box 133\1\ scan0013 | |
| Date | 7th January 1936 | |
| C.3 500C.C. RUDGE UNIT FIG II POWER VARIATIONS WITH VARIOUS INDUCTION SYSTEMS BORE - 3.346" STROKE 3.464" C.R.= 7.3 VALVE TIMING .020" CLCE. I.O. 19° L E.O 42° E I.C. 48° L E.C. 8° L 1300C.C. EXHAUST PIPES. CARB ENGINE L=1.00" L=3.50" L=5.50" L=7.50" Y-Axis Left: B.M.E.P. (LB/IN^2) Y-Axis Right: B.H.P., SPEC: CONS: (PT-BHP/HR.) X-Axis: PISTON SPEED (FT/MIN), R.P.M J.L.E 7-1-36 | ||