Having given the car a bit of a blast yesterday I felt that it was a bit wollowy on corners with the rear tending to want to swap ends if I was nearing the limit.
I have suggested I will go for larger wheels in a separate thread but for the time what tyre pressures would anyone suggest I try.
Currently I have 26psi Front and 30psi rear. The weight is about 420ks front and 580 rear (not 100% as it is in another thread but there or thereabouts) Tyres are 185x55x13.

Have you had the pressures of the hydrogas checked out? That may be part of the problem. My old K3 had a sag from one side to another and all we did was level it up, but I didn't take a note of the pressure.

I'm sure I ran the same pressure all round. But it's been a while since I had it!

I'm running 22 all round (Rossa II), any lower and the steering gets too heavy.

right tongue in check time

im going to suggest you try this and work from here

23 front

26 rear

never run a Rosssa but going on Coupe expriance i would start here. and try experimenting one end at a time. also stiffer on the rear shocks compared to teh front if possible, not a lot just a couple of clicks.

WEST

Allen, I would have thought 22 all round would be under inflated and you will start to wear out the edges over time especially at the rear which is heavier, plus you will probably get more side wall flexing on hard cornering.

West, I'll give it a go at the settings you mention for a couple of weeks and see how it feels then either drop the fronts to Allen's 22 for a while and see if that makes any difference and will also try increasing the rears to say 28 for a while.

Tim, Haven't had the gas pressure tested but the ride hieght is within 5mm from one side to the other, hopefully this means that the suspension is in good order.