Bristol 403/100a (1953-55)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 66mm x 96mm |
| Displacement |
1971cc
|
| Firing order | 1,5,3,6,2,4 |
| Oil pressure (hot) |
60 lb./sq. in. at 3000 rpm
|
Fuel Supply
| Carburetor | 3 Solex 32BI |
| Choke |
26 (#1); 26 (#2); 26 (#3)
|
| Main jet | 115 (#1); 120 (#2); 115 (#3) |
| Compensating | 190 (#1); 190 (#2); 190 (#3) |
| GA jet | 2 |
| GS jet | 95 |
| Slow running | 45 (#1); 45 (#2); 45 (#3) |
Valving
| Intake tappet clearance |
0.010″ – 0.012″ (hot)
|
| Exhaust tappet clearance |
0.010″ – 0.012″ (hot)
|
| Valve-timing indication | Sprockets |
| Intake valve opens |
TDC at 0.044″ clearance
|
Ignition
| Breaker gap | 0.014″ – 0.016″ |
| Plug gap | 0.018″ |
| Ignition timing indication |
–
|
| Ignition timing |
5° BTDC
|
Clutch
| Clutch type | Borg & Beck Single Plate |
| Clutch linings |
Ferodo RYZ or Raybestos WR9
|
Brakes
| Brake type |
Lockheed 2LS
|
| Brake linings |
Mintex 232K2
|
Wheel Alignment
| Toe-In | 0″ to 0.1″ |
| Camber | 0° to 1° |
| Caster angle | 1½° to 2½° |
| King pin angle |
5° to 6°
|