I have the stock turbo and a greddy profec B II and i drive on 7.5 psi everyday but do like to up it to 13 one in a blue moon. The only problem with upping the boost is that it does reach that point and bounces right back to 7.5????

Where is the problem? I want to up the boost at the track and keep it at 13 throughout the whole gear. And also is 8k degrees normal for cruising on the highway or is it too hot? Also, why is the oil pressure really high lige 6 at idle when the car is cold and when it warms up, the oil pressure is at .5 and that scares me. (not like on a honda). Is it my pump or is that normal??? Thanx
Tom
PS Its and SR20 black top S13