6x10 problem

[camelotr]

I have 6x10 Cosmics on my Cox GTM. I use a008 Yokos on them. The car has a nice grip to say. Unfortunatly to much as in fast corners if I accelerate out, the outer rear tyres tend to let the pressure off. First I used 1,8bars, then 2, but still. The car is running 1.5deg negative on the rear. Should I raise this? Or should I raise the pressure? Or use different tyres with stronger walls?

Edited by camelotr on Sunday 3rd October 07:59

[Cooperman]

I've rallied on 008's on both 4.5" and 5" alloys and despite really hurling it through tarmac corners have never had a pressure loss (except when I went off!).
Could it be that the wheels are too wide and don't have the right rim shoulder for a 165 section tyre? If I were you I would ring Yokohama Tech Support for advice. By the way, I run 34 psi on Yokos on the Mini.