[racingdwarf]

Hmm I'm not a cat man, but it sounds like the front maybe colapsing mid corner thus giving a sudden fist full of front end grip and the weight transfer going to the front, when mid corner, No weight on the back = no grip and the car will just snap out

Im no set up man but maybe heavier front end, oil & spring, poss tigten the front diff a bit maybe the outer row on the front tyres