Singer Roadster 9-hp Series 4a (1949-50)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
Bore & Stroke |
60mm x 95mm |
Displacement |
1074cc |
Firing order |
1,3,4,2 |
Oil pressure (hot) |
30 – 35 lb./sq. in.
|
Fuel Supply
Carburetor |
Solex 30FAI |
Choke |
22 |
Main |
115 |
Air Correction |
230 |
Pilot |
45 |
Starter Petrol |
115 |
Starter Air |
4 |
Valving
Intake tappet clearance |
0.005″ (hot) |
Exhaust tappet clearance |
0.007″ (hot) |
Valve-timing indication |
¼ on flywheel |
Intake valve opens |
20° BTDC (125⁄32” on flywheel) |
Ignition
Breaker gap |
0.012″ |
Plug gap |
0.025″ |
Ignition timing indication |
¼ on flywheel |
Ignition timing |
5° – 10° BTDC (fully advanced)
|
Clutch
Clutch type |
7½ Borg & Beck Single Dry Plate |
Clutch linings |
– |
Brakes
Brake type |
Girling Hydro-mechanical |
Brake linings |
7″ x 1¼” x 3⁄16“ |
Wheel Alignment
Toe-In |
1⁄8“ |
Camber |
1° laden |
Caster angle |
2° laden |
King pin angle |
9° laden |
Keyword: Singer Roadster 9-hp Series 4a (1949-50)