Triumph 18tr Roadster (1946-48)

Triumph 18tr Roadster (1946-48)

The Car

Coming soon

The Specs

Below are the technical specifications and any performance numbers we could get.


Bore & Stroke 73mm x 106mm
Displacement 1776cc
Firing order 1,3,4,2
Oil pressure (hot)
30 – 40 lb./sq. in.

Fuel Supply

Carburetor Solex 35 FAIE
Choke 50


Intake tappet clearance 0.012″ (cold)
Exhaust tappet clearance 0.012″ (cold)
Valve-timing indication Timing wheel and flywheel
Intake valve opens 10° BTDC


Breaker gap 0.010″ – 0.012″
Plug gap 0.024″ – 0.030″
Ignition timing indication
Ignition timing 8° BTDC


Clutch type Borg & Beck Single Dry Plate
Clutch linings Borg & Beck


Brake type Girling Hydrastatic
Brake linings Girling

Wheel Alignment

Toe-In Parallel to 116” Toe-out
Camber 1¾°
Caster angle 6°’
King pin angle 8½°