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 of a C.S. unit engine showing BHP and BMEP curves at various RPMs with different exhaust setups.
| Identifier | ExFiles\Box 3\4\ 04-page183 | |
| Date | 28th January 1933 | |
| BENSPORT. J.I UNIT. C.S RM.{William Robotham - Chief Engineer}B2 JAN. 28/33 COMP.RATIO 6.3:1 CAMSHAFT E.59139 (113/16°) CYL: HEAD STANDARD E.56604. 2 1.375 S.U. CARBS: ON SPECIAL PIPE BETWEEN CYLS: 1&2, 5&6 BALANCED WITH SPECIAL 'FOOD' RESTN: ① COMPLETE EXHAUST SILENCER SYSTEM. ② SWAN-NECK REMOVED ③ REAR CHAMBER REMOVED ④ OPEN EXHAUST ⑤ C.O. FITTED HERE. THIS CYL: HEAD HAD NOT BEEN TREPANNED ROUND THE INLET VALVE SWAN NECK REAR CHAMBER FRONT CHAMBER B.H.P. B.M.E.P. C.T.S. R.P.M. | ||