TYRE PRESSURES

[cirvy]

I know this has been done before, but i just cant seem to get a consensus. What should the correct tyre pressures be for a 4.5 Cerbera, running on 18' Spiders with 225/40 front & 255/35 rear SO3's. Local dealer says 24psi, factory can't confirm, i have been running at 26psi...seems a bit high, any opinions appreciated.

[jeremyc]

22 Front 24 Rear according to the manual.

Works for me.

[cirvy]

Thanks for that Jeremy, my manual says the same ( its a 1998 car ).Your car being one of the later ones, has the manual been updated to reflect the later wheels & tyres?

[washy]

My 2003 manual still shows 17 inch wheels for the 4.5! I thought they'd been standard on 18's since 2001?!

[gazzab]

26 all round is a better pressure on 18s.

[jeremyc]

cirvy said: Thanks for that Jeremy, my manual says the same ( its a 1998 car ).Your car being one of the later ones, has the manual been updated to reflect the later wheels & tyres?

Not sure, but you should remember that TVR's recommended tyre pressures for all models, wheel and tyre sizes is 22 front, 24 rear.

[ro_butler]

Personal taste really. Run mine at 26psi all round.

I believe you should raise the pressure for track days though.

Rob.