Calibrating the C-Type Brantz

John and Jon have been out this weekend calibrating the Brantz historic rally navigation unit, fitted to our C-Type replica.

The unit installed on our car has the remote speedo and distance indicator. Sensors on the prop shaft and front wheel ensure that the greatest speed accuracy occurs.

The calibration process involves driving the vehicle on a long straight and setting the markers at various points in the journey. The process is then replicated a number of times to set up the distance accuracy.