Aston Martin Db4 (1959)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 92mm x 92mm |
| Displacement |
3670cc
|
| Firing order | 1,5,3,6,2,4 |
| Oil pressure (hot) | 50 lb./sq. in. at 3000 rpm |
Fuel Supply
| Carburetor | Twin S.U. HD8 |
| Choke |
2″
|
| Needle |
UJ Needle
|
Valving
| Intake tappet clearance |
0.009″ – 0.011″ (cold)
|
| Exhaust tappet clearance |
0.010″ – 0.012″(cold)
|
| Valve-timing indication | Timing cover and vibration damper |
| Intake valve opens | TDC at 0.010″ open 0.064″; exhaust TDC at 0.011″ open 0.040″ |
Ignition
| Breaker gap | 0.014″ – 0.016″ |
| Plug gap | 0.022″ |
| Ignition timing indication | 13⁄16” BTDC mark on T.V.D. |
| Ignition timing |
10° – 12° BTDC
|
Clutch
| Clutch type | Borg & Beck 10 A6IG |
| Clutch linings |
Mintex 7/240
|
Brakes
| Brake type |
Dunlop disc Mk. II, servo assisted
|
| Brake linings |
Mintex M33
|
Wheel Alignment
| Toe-In | 1⁄8“ |
| Camber | 1/3° to 1½° |
| Caster angle | 1° to 1¼° |
| King pin angle |
5°
|
