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).
Performance graph comparing manifold only, cut-out open, and full exhaust systems.
| Identifier | ExFiles\Box 13\2\ 02-page156 | |
| Date | 30th November 1931 | |
| COMPARISON OF MANIFOLD ONLY, C.O OPEN & FULL EXHAUST SYSTEM P.II COMPLETE SHORT TYPE EXHAUST SYSTEM 114° CAMSHAFT TO E82236 4.65 C/R STD. CYL HEAD. 1.9" VALVE THROAT MANIFOLD ONLY R.R TWIN CARBS. 1.4" DIA. CHOKES C.O OPEN COMPLETE P.II SHORT EXHAUST SYSTEM FULL EXHAUST SYSTEM EXHAUST BACK PR.{Percy H. Rose} D.R.P LBS/SQ IN C.O. OPEN EXHAUST BACK PRESS. Valve Timing Diagram: Ex. 60, 15, IN 55, .013 CLCE Axes Labels: B.H.P., R.P.M., B.M.E.P LBS/SQ", LBS/D' | ||