Jowett Jupiter Mark 1a (1953)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
Bore & Stroke |
(2.855″) 72.5mm x (3.545″) 90mm |
Displacement |
1485cc |
Firing order |
1423 |
Oil pressure (hot) |
65- 75 lb./sq. in.
|
Fuel Supply
Carburetor |
Twin Zenith 30VM |
Choke |
27mm |
Main |
115 |
Compensating |
60 |
Progression |
120 |
Slow Running |
45 |
Valving
Intake tappet clearance |
0.003″ (cold) |
Exhaust tappet clearance |
0.006″ (cold) |
Valve-timing indication |
Sprockets and flywheel |
Intake valve opens |
12° BTDC |
Ignition
Breaker gap |
0.014″ – 0.016″ |
Plug gap |
0.020″ – 0.025″ |
Ignition timing indication |
Flywheel |
Ignition timing |
3⁄8” ATDC
|
Clutch
Clutch type |
Borg & Beck Dry Plate (7¼) |
Clutch linings |
Woven yarn |
Brakes
Brake type |
Girling Fully Hydraulic |
Brake linings |
3⁄16” thick x 8¾ long |
Wheel Alignment
Toe-In |
0″ – 1⁄8” (toe-out) |
Camber |
0° |
Caster angle |
1¼ |
King pin angle |
10°
|
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