Standard Flying Twelve (12c) (1939)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke |
69.5mm x 106mm |
| Displacement |
1608.5cc |
| Firing order |
1,3,4,2 |
| Oil pressure (hot) |
40 lb./sq. in. at 30 mph
|
Fuel Supply
| Carburetor |
Solex 30 FAI |
| Choke |
27 |
| Main |
120 |
| Compensating |
210 |
| Progression |
GA45 : GS105 |
| Idling |
45 |
Valving
| Intake tappet clearance |
0.015″ (cold) |
| Exhaust tappet clearance |
0.015″ (cold) |
| Valve-timing indication |
Arrow on flywheel for TDC |
| Intake valve opens |
10° BTDC |
Ignition
| Breaker gap |
0.010″ – 0.012″ |
| Plug gap |
0.040″ |
| Ignition timing indication |
– |
| Ignition timing |
TDC |
Clutch
| Clutch type |
Borg & Beck Single Dry Plate |
| Clutch linings |
Borg & Beck Composition |
Brakes
| Brake type |
Bendix |
| Brake linings |
Bendix Composition |
Wheel Alignment
| Toe-In |
Parallel to 1⁄8” Toe-OUT |
| Camber |
⅓° |
| Caster angle |
3° |
| King pin angle |
10° 8′ |
