It really depends on your power level, track prep and car setup. And a couple PSI can make a huge difference. I just ran my Friends car at a GOOD track, but I had to use my backup gauge because I forgot my normal one. According to the TPMS I was running a higher pressure. And guess what. I was struggling. On my last pass, when the track was at it's worst, I finally got the pressure where it should be and dead hooked.
The Pressures I quote are from MY gauge. Yours may be different. But, a couple PSI can make a huge difference. Did I just say that????