Richard_Wallace

Couple of points.

I typically have mine set at 30 front 33 rears (cold PSI) for street use. They will warm up (lets take ambient air temp out of the equation for now). So normal mid/hot day. They will bump to another 3-5PSI once hot/operating temps. Of course on track they will gain another 2-3PSI on top of that due to all the time hard driving. I like to on a staggered tire to run 30-32 hot on the front, and 33-35 hot rear. So you either start lower or do a hot lap or two and lower your pressures. The issue with say my McLaren and the porsche under 28 PSI you will throw a TPMS error until it goes above that.

Also remembering that you are running a staggered setup (unlike your corvette). So the pressure in the front will be less than back, due to - well the tire is bigger.

Since I do not drive aggressively on the road as I would the track (I start with the street PSI at 30 front and 33 rear) so I do not have the TPMS showing an error, and it is low enough even with some aggressive driving not a big deal

PS, My Street PSI Cold, is also due to mornings being somewhat chilly in spring and fall here in ohio. I also don't have to constantly fill or remove air from my tires every time I drive my porsche (It is my Daily Driver). So if I have it at where I mentioned and it is colder out - I can still be above 28 in front (example) even if cold outside when just getting started.

TJ74

Thanks for the response Richard, just what I was looking for.

alreed

Experimented a bunch but didn't take good notes. I'm gonna start logging things better.

aggie57

Sounds good; I start a day with 29/32-33 cold and reset them hot to the same pressures after the first run. That seemed low to me but is what people here suggested and seems to work, no sign of rolling onto shoulders and wear is pretty even. Here are a front tire on mine after a day at Laguna Seca using that approach, as you can see the tire is pretty new at that stage.

ohniner

You've gotten very sound advice from guys who have been where you are. After way too many years of racing, which started with just a few PCA track days then $$$$. My suggestions are:
If you are only doing one maybe two "gentle" track days a year to feel what you car can do in safe environment then just replace the worn tires with the same and don't look back.
If you may do more than one or two gentle track days then for safety's sake (not your wallet) as a minimum (it gets real expensive from here) invest in: A set of dedicated track wheels with track tires, upgrade the brake pads to trackable pads that can withstand the heat and change the brake fluid to one that has higher boiling points. There are many local shops that support PCA track days who would provide assistance. Ask around the club for recommendations.
Yes it can get expensive but oh my is it fun!

ohniner

You've gotten very sound advice from guys who have been where you are. After way too many years of racing, which started with just a few PCA track days then $$$$. My suggestions are:
If you are only doing one maybe two "gentle" track days a year to feel what you car can do in safe environment then just replace the worn tires with the same and don't look back.
If you may do more than one or two gentle track days then for safety's sake (not your wallet) as a minimum (it gets real expensive from here) invest in: A set of dedicated track wheels with track tires, upgrade the brake pads to trackable pads that can withstand the heat and change the brake fluid to one that has higher boiling points. There are many local shops that support PCA track days who would provide assistance. Ask around the club for recommendations.
Yes it can get expensive but oh my is it fun!