Steering

The steering wheel is the secondary sensory input device and the primary control interface for the driver.

In a car as light as this, you simply don't need any power assistance for the steering. It amazes me that modern sports cars and super cars have this, when it ruins the feedback that comes back through the steering wheel. Power assistance also adds uneccessary weight.

Steering Wheel

Momo 290mm Model 26 steering wheel In the Fisher Fury R1, I used a Momo 290mm Model 26 wheel on a quick release boss.

Momo quick-release steering wheel boss This was mounted on a quick release boss, to make it easy to remove the steering wheel. whilst I don't need to take the wheel off to get into the car, it has proved very useful when working on the car interior.

Steering Column

In order to pass the IVA test, the steering column needs to have a collapsable section. Typically, kitcars re-use a refurbished column from cars like the Ford Sierra and this is waht I did for my Fisher Fury R1. Whilst this solution was good quality and solid, it is quite a heavy item.

It is very important that the column spins freely and without any movement in other directions. Typically a fairly cheap nylon bush is used to mount the upper part of the column and this works well, proving a reliable mount that freely and and smoothly.

A challenge in the installion in the Fisher Fury R1 was the presence of the steel footwell and engine mounts. With a mid-engined car, it should be possible to get a better steering wheel angle and take a more direct line to the steering rack.

Steering Rack

The height of the rack needs to be easily adjustable. The plan is to enable the car to have two different ride-heights, one for road and one for track. The steering rack will need to be able to move fairly easily to handle the susoension changes and ride height adjustment. I'm assuming this can be done with bolt-through spacers. The rack mounts and mounting points will be designed with this adjustment in mind.

The 2.4 ratio 'quick' rack used in the Fisher Fury R1 is pretty much perfect and although I will try a range of racks to see which is preferred, this is the current favourite.

Top • Last page update: 20/11/11