hi, can i put 225/45/17 on a classic impreza my99?? also would it make a difference if i had 225 on the front and 215 on the back?? thanks simon

 

btt

 

I run 215/45/17 on mine sometimes and I find I need to raise the coilovers to stop scrubbing, where as the 225/35/18 are a lot better

If you run 215 45 that is 45% of 215 which is 96.75mm of tyre sidewall
the 225/45 is 45% of 225 which is 101.25mm of tyre sidewall

So the rolling radius will be different, cant say how this will effect the cars handling tho?

 

Hi

On a AWD car its best not to alter the tyre sizes between the rear and the front, this will cause overworking of the differentials and eventual failure.

225/45R17's will be ok, but just bear in mind what you have on at the moment. For instance if you have 205/50R16's on at the moment, your gearing would experience a 3.75% increace in road speed per RPM.

Have a look here and compare you exsisting tyres with ones you wish to put on.

http://www.tyresave.co.uk/tyresize.html

Hope this helps
Comper100