Track day tyre pressures

 Morning all, do you mind if it pick your brains on something.  I have my first track day booked for tomorrow at Brands Hatch, open pitlane, which i am very excited about (so excited that work is really suffering today!)…

I am running a Mk1 1800 with no mods (apart from new solid discs and Greenstuff pads all around, front chassis brace bar ) , its on 14 inch Toyo T1-r all around.  Conditions will be dry, chance of rain, what tyre pressures should i run…i’ve read about 26 Psi for road, is this the same for track use?

Anybody got any experience of the track or any last minute advice? (slighly worried about being eaten alive by 911’s)

Thanks alot in advance

James