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).
Comparison of flying half-mile and lap speeds for various car configurations tested at Brooklands Track, including car weights.
| Identifier | ExFiles\Box 155\1\ scan0011 | |
| Date | 10th March 1932 | |
| BROOKLANDS TRACK 10.3.32 (1) FLYING HALF MILE SPEEDS 92.8 MPH (87.5) - 27EX. TWIN SU CARBURETTORS, R=5.25:1, 114° CAMSHAFT 87 MPH (83) - 27EX STD R.R. CARBURETTOR, R=5.25:1, 114° CAMSHAFT 87.4 MPH - 34GN (FAIREY) R.R. CARBURETTOR, R=5.25:1, STD CAMSHAFT, HIGH LIFT ROCKERS. 79.65MPH - 60 J.S. STANDARD CAR (2) LAP SPEEDS 91.38 (85.28) - 27EX TWIN SU CARBURETTORS, R=5.25:1, 114° CAMSHAFT 84.99MPH (81.51) - 27EX R.R. STD CARBURETTOR, R=5.25:1, 114° CAMSHAFT 84 MPH - 34GN (Fairey) R.R. CARBURETTOR, R=5.25:1, STD CAMSHAFT, HIGH LIFT ROCKERS. 77.9 MPH - 60 J.S. STANDARD CAR CAR WEIGHTS 27EX:- 47CWT 2QRS 14LBS (5334 LBS) 34GN:- 47CWT 3QRS 26LBS (5374 LBS) 60JS {Mr Johnson's Secretary} :- 45CWT 1QR 26LBS (5094 LBS) | ||