Loose steering at high speeds

[adamg30]

Ive noticed recently that when i get upto about 80mph the steering begins to feel light to the right,to the left it feels perfectly fine.What i mean is the steering wheel feels lighter to move.Ive had tyres changed recently and balanced and the pressures are all ok.Ive been to my local tyre specialists they said theres certainly nothing wrong with the car they think its the toyo's which are directional tyres.Surely the steering shouldnt feel light and unstable though???Any help would be gratefully received.

 

[adamg30]

Sorry guys should of put in that i have a ph2 172.The tyre pressures are 32psi at the front and 30psi at the back.

 

[Phill90]

Doesnt your steering become much more responsives at high speeds like that ?

 

[adamg30]

It feels twitchy at high speeds maybe its like that and thats how its meant to be but to me it feels slightly unstable

 

[mark_182_54]

mine had the same too it for a service came back all sweet