Click to view attachmenthttp://www.elephantracing.com/suspension/d...siondiagram.htmhttps://www.google.ca/search?q=911+914+fron...UvIjiUsHOgwM%3ABill Kirkland,904FF:
"The two Alan Staniforth Books are an absolute God-send to beginners starting out in chassis design and suspension set-up.
At this stage, it was realised that the 914 front Macpherson struts could be modified in the usual manner by cutting off
the top of the tube in the hub,welding in a threaded plug to take a rose (heim) joint which could then become part of the top wishbone.
So now we were into front and rear roll centres, effective swing axle lengths, wishbone angles, chassis mounting points, steering rack
location to avoid bump steer etc etc.Some of the design work around that time is shown below."
A simple approach,in a minimalist method,working from what you have to what you need.
An experiment with some spares you have layin around,the cutting and welding of the tube.
Setting up the chassis on hardpoints,true level and at static ride height,will provide the baseline geometry to work from.
Map the lengths out to scale,drawing on the floor,chalkboard or cad,using the actual numbers.
The effective rolling radius of the tires selected must be accounted for.
Some study of the theory is involved,an improvement of camber gain while minimizing bumpsteer is the objective.
Arbritrary wild ass guesses would result in a horribly handling 904/14,some attempt made at making it better,
not merely hanging it off the chassis.The placement of the top ball or heim is critical,the effective top arm length too.
Many factors that must be made right,some cutting,welding and hacking is involved,the top wishbone's front pivot box inside the sheetmetal.
Measure twice,cut once.Maybe shortening the tube will work dandy,avoiding the unequal length top wishbone,and defining the top attach point.
None of this is plug n play,this is pay your way.
Err,play your way.
Gettin interesting now.
A few examples to peruse,to like,stimulate the inventor juices.
https://grabcad.com//