U2 can build a racing car….continued
Following January’s report I am pleased
to say that some positive progress has been made.
The most noticeable is the roll over cage which should conform to the stated requirements. In addition to the backstays I have incorporated forward stays which pick up on one of the front bulkheads helping to increase the rigidity.
The rear suspension operates via push
rods acting on chassis mounted rockers, that in turn are connected to the top
of the coil spring damper units. Using this type of mechanism allows the
characteristics of the suspension to be altered by c
hanging
the rockers to ones with different pick up positions if required. The
photograph shows what a basic rocker looks like.
The front suspension has progressed a little in that a standard disc and calliper have been fitted for the time being.
As I mentioned last time the steering needed to be taken account of so the rack has been temporarily positioned and one steering arm connected via the track rod end. The objective with the steering is to achieve the following:
1) Keep the steering arm parallel to the top wishbone.
2) The rack end ball joint should intersect a line drawn from the top wishbone mounting to the bottom wishbone mounting.
This should help eliminate bump steer.
Mindful of the fact that I may road
register the car and that of course means single vehicle approval, I have used
standard Ford steering column bits suitably modified but that will still be
able to use the collapsible part of the assembly ie, outer casing sliding joint
and universal joint.
At this stage the mods to the rack have still to be carried out.
Various brackets and pushrods have still to be made but once these are complete and with the addition of wheels and tyres the chassis should be rolling.
So if any of you out there fancy a Mallock give me a ring!
Rob Hume