The specs for the stock pirelli summer tires shows 27.2" diameter with revs/mile 763. That calculates to 26.43" diameter and closely matches my 111.29 trap speed on the rev limeter in 4th. So, it doesn't look like you can calculate trap speed/rpms from just the diameter of a tire.
I was trying to find the revs/mile on 28" slicks to see if 28's are big enough or should I go 29's.
I don't plan any mods except axlebacks, and just an occasional run at the track.
2013 GT Roush Stage1 TVS