hi i,ve got 225/40/18 tyres and was wondering what pressure they should be, i'm running standard sti 05 suspension any advice or thoughts most appreciated

 

I use 39F/35R on both 17 and 18" 225 tyres on 03 STi. Evens out tyre wear.

 

really that high? i was told 32 fr and 29 rear at well lane

 

Yes for road and track F1s, R888s, and RE040s. Personal choice to go hard. Prevents premature wear of outside edges, ride is a bit firm, negligable loss of grip. You don't have to go this hard but the scoob is a heavy car and murders the front tyre edges at normally recommended pressures. TSL recommended 34F/31R when I had alignment done there a while back, I'd say go no lower than this. Always check cold and do not reduce when warm.

 

cheers mate been to tsl a few times, nearly bought his car off him before this one, thanks for your help, i'm putting a car on for sale soon had nearly anything you can have done to it done by tsl let us know what you think