I am looking to start taking my P85 to track Days as this is new territory for me I would like some suggestions on rims and tire combos specifically for a "track day"
After some research I was leaning towards the Kumho V700a but am open to other suggestions, in addition should I be looking for a certain rim other than the stock 19"
Lastly for a car this heavy and after hot lapping what pressure should the front and back be noting I am in Florida and the temp here is up in the low 90s most days.
It sounds like you haven't had much (if any) track time. In this case, honestly, you should just run whatever tires are on the car, and save the R-compounds/track wheels until you have more experience.
Regular street tires are more forgiving on the track, are more predictible, and are easier for a beginner to "read" by the sounds they make. Dedicated track tires (R-compounds, slicks, etc) are harder for a beginner to read, and are have more "non-linear traction", if that makes sense. They tend to stick tight until they break free, and then the traction drops dramatically, whereas you get a lot more warning of impending skidding from street tires. Most car clubs won't allow (or at least highly discourage) beginners to run R-compounds for this very reason.
I'm of the mindset that starting with street tires and saving the track tires until later makes you a better track driver, faster. You have more opportunities to learn the line, learn to slide the car, learn to detect and correct over/understeer and drive smoothly, and to understand what the tires are "saying" by their sounds ("singing" vs "howling"). And this all happens at lower speeds that give you more time to react, with less chance of bending expensive aluminum.
I know people who jumped to R-compounds too early in their driving career, and they never mastered these basic skills before cranking up the speeds. They drive rediculously fast, take screwy lines, but the higher traction of their r-compounds save them. Then they start pushing the speeds and things go bad, quickly. With little time to react, and under-developed skills, they wind up in a world of hurt.
If you can get an instructor in the car with you, do it. If not, try to go with someone who has a lot of track time, can/will ride with you, and can explain what's going on (
teaching track driving is very different than just being good at track driving).
re: tire pressures - I can't help you with specific numbers, but you are looking to measure tire pressures hot, right after the session ends, ideally in pit lane. Dropping 5 PSI from cold street pressures is a good start.
). After I used up my 21" rubber I got some RE-11's in 19" and they are much, much better cornering.
