I'm a Newbie 7 owner, and so some this may be complete 🙆🏻, as I don't have experience of other 7's. (Sorry this goes on a bit)
The car is very unstable at high speeds (>60mph)and the steering is heavy. If at you turn into a bend, at any speed, the steering lock stays at that angle until I turn it back straight again - it doesn't 'roll off' lock like a tin top does.
I've adjusted the toe from 2deg toe out 😳 to 20' toe in and adjusted the camber to -1deg 20'
This has made a vast improvement, you can now let go of the wheel to change gear on a bumpy road 😬
However the car is still twitchy, especially on bumpy roads.
The track rods are about 6mm out of parallel with the lower wish bones, so I think I need to shim the rack as per the LF article for bump steer.
But the lower wishbones don't have the washer configuration specified in the manual. There is only one, c4mm thick, washer on the rear side of the bushes - pushing the wishbone as far forward as it can go.
I assume this is wrong, minimising the castor angle. Is this is what is making the steering heavy?
Should the washers be 'normal' (1 mm thick ish) washers to suit the bolts?
Or am I just being a wimp 😳 😬