[Ant]

Some good advice,

The question is I assume these kits use a Nissan R32 IRS, issues like the rear roll centre being designed in conjunction with the front suspension roll centre, can make a big difference. I assume other cobra owners of these kits work well on the track, and you are having the normal teething issues?

Toe in etc on a IRS makes a huge difference to the way the rear works for turn in etc. Your car could be only really using half of the outer tyre to put the power down with all the body rollover.
Also the car rolls excessively it might be a good idea to check the suspension motion ratio and get the right springs to work and then sort the shockies out.

Adjustability is a good thing with a camber kit, and also fitting poly bushes as rubber isnt suitable for track work. I have 100 shore poly bushes in the front of my car, but am using all rod end (rose joints) in the rear. I think you can build a good fast club race type car which is still road driveable using some nice sticky semi slick tyres, going full slicks makes the car purpose built for the track only, and race type springs and shocks generally will cause road tyres to cut out.

Bottom line if the suspension is well designed, then the next thing is getting it in the right place, and then controlling the movement, go back to basics which I tend to do things back to front myself at times....!