picked up 1990T/T on friday. 2 days of grinning later:D, decided to change crap jap rubber with some decent stuff.

does anyone know the correct pressures for these tyre sizes

 

235/45x17 & 255/40x17

 

tyre fitter put in 32 & 33 psi but think thats too much!

 

cheers

 

nick

Standard pressures are 36 rear, 33 front. Yours may vary a little with different sized tyres - experiment and see what 'feels' right.

cheers andy, time for more fun then:cool:

Nick

im running the same tyre sizes as you, and the pressures yours have been set to is the same as mine, and im having no problems

I too have the same sizes. I started with 1psi below factory settings and found this OK so far......:)

 

Incidentally when I had stock wheels and ran with factory settings, my rear tyres always wore down showing classic signs of overinflation:confused:

 

Too low and you will burn more fuel. Also the tyres will flex more and therefore overheat on a long high speed run (hence the owners manual suggests increasing pressures for continued 100mph driving) which could cause a blowout. Remember, the Zed is a heavy car hence the higher standard pressures.

 

Best start near standard pressures and reduce until it feels right.

 

HTH

 

Richard:)