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 and specifications for a Bentley Chassis B.17 (Unit B.4).
| Identifier | ExFiles\Box 3\4\ 04-page360 | |
| Date | 1st July 1938 | |
| BENTLEY CHASSIS B.17 (UNIT B.4) GEAR BOX TO N SP{Mr Spinney} 8658 10/41 REAR AXLE IGNITION SETTING 15° BTDC (L.E.C. 9882) EXHAUST CUT OUT (L.E.C. 3544 OPEN) SPEEDS UP TO AND INCLUDING 3800 R.P.M IN TOP GEAR 3000 R.P.M IN 3RD GEAR 3250 R.P.M UPWARDS IN 2ND GEAR Y-Axis: B.H.P at ROAD WHEELS X-Axis: ENGINE R.P.M. VALVE TIMING (.020" CLEARANCE) I.O. 5° B.T.D.C. E.C. 8° A.T.D.C. UNIT B.4. CAMSHAFT - 113° - E.B. S18 PISTONS - E.B. 405 CYLINDER BLOCK - E.B. 89 CYLINDER HEAD - E.B. 91S - 97cc CAPACITY R.{Sir Henry Royce} 7. 38 | ||