Rolls-royce Silver Dawn (1946-51)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
Bore & Stroke | 89mm x 114mm |
Displacement |
4257cc
|
Firing order |
1,4,2,6,3,5
|
Oil pressure (hot) |
25 lb./sq. in.
|
Fuel Supply
Carburetor |
Stromberg AAV26M
|
Compensating |
0.54
|
Main |
0.044
|
Slow Running |
0.70
|
Idle Bleed |
60
|
Valving
Intake tappet clearance |
0.006″ (cold)
|
Exhaust tappet clearance |
0.012″ (cold)
|
Valve-timing indication | Flywheel (tappets at 0.030″) |
Intake valve opens | 12° ATDC |
Ignition
Breaker gap | 0.019″ – 0.021″ |
Plug gap | 0.024″ – 0.027″ |
Ignition timing indication |
Flywheel
|
Ignition timing |
TDC (fully retarded)
|
Clutch
Clutch type | Borg & Beck Single Dry Plate |
Clutch linings | Mintex |
Brakes
Brake type |
Rolls-Royce Hydraulic Mechanical servo-assisted
|
Brake linings |
Ferodo
|
Wheel Alignment
Toe-In | 1⁄16” to 5⁄32“ |
Camber | 0° to 1° out (no adjustment) |
Caster angle | +½° to -½° |
King pin angle | 4¼° (3¼° on early models) |