6 to 28psi .
Which just goes to show: there really are no stupid questions. just stupid answers.
On a dry day depending on track conditions I used to run mine between 12 and 15 PSI, at Todd road in restricted medium the majority of the time i was running 14-15 PSi, other tracks 13-14.
I second what Nikola said. Usually running between 12 and 15 cold generally aiming for around 15-16 hot psi in restricted med