Graph comparing engine performance (B.HP vs R.P.M.) with different induction pipe configurations.
| Identifier | ExFiles\Box 31\5\ Scan053 | |
| Date | 28th April 1933 | |
| BENSPORT(Codename for 3 1/2-litre Bentley) UNIT No B.2. INDUCTION PIPES R.M.B.10. APRIL 28. 1933 COMP RATIO 6.35 : 1 (A.B. 222) CAMSHAFT ES9139 (139) 2 - 1 3/4" S.U CARBS WITH INDUCTION PIPES ① E.B. 59/60 WITH TWIN HOT SPOT & PH II HOT SPOT SILENCER (See BALANCE RESTN) ② AS ① WITH SINGLE CENTRE HOT SPOT CONN. & PH I HOT SPOT SILENCER (NO RESTN X.1544) ③ ES9292/3 MOD EX TO FO1 OTHERWISE AS ② B.H.P R.P.M. INDUCTION DEPN Hg SPARK PLUGS KLG 744 FUEL SHELL MEX T.D.C 54° 13° 9 1/4° 3 1/4° B.D.C (TAPPETS AT .030") CTS {C. Trot Salt - Carburation} | ||
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).