I'd verify the tire pressures as most installers are not careful to bleed the pressure down accurately after setting the bead.

I'd guess the squirminess/wandering you're noticing is more likely due to the tread squirm from the relatively tall tread depth of a new tire. Increasing tire pressure won't make that go away and beyond a point, will make it worse.

For the street, assuming the tire sizes are reasonably close to stock, I'd run the stock 32 psi front and rear. That's what I do and if I'm honest, I doubt I could feel a difference of 2 psi on the street.

 

32PSI on mine. Front and rear.

 

Thanks - it's entirely possible that the squirm I'm feeling is just the contrast from my old tires which were WAAAYYYY down to almost slicks - obviously no tread squirm there.
(Purchased tires are stock sizes, no adjustments for the reports about this tire being a tad narrower)

Time will tell.

 

I do 32psi now. Anything higher wears the middle of tire more, for street use (even 1psi higher). It's noticeable after several thousand miles.

 

From Continental but they're not unique.

New tires take a little bit of gentle breaking in. Discover why – and how to drive on new tires to optimize performance and safety.

https://www.continental-tires.com/ca...with-new-tires

-- Chuck

 

This is the tire I plan to go with next year. Lots of positive reports and the price is right.

 

Price is not especially "right" right now Most Bridgestones are on sale and, using Tire Rack prices as a yardstick, the "max performance" (tier 2) S-04s are the same price as the "ultra" (tier 3) 500s. And the (top tier) Re-71R and S007A roughly $10 more per tire. The Firestones are Bridgestones in drag but not on sale right now.

-- Chuck

 

With this tire if you are going to "drive it like you stole it" bump the tire pressure up to 35 lbs cold and the soft side wall will go away and the tire really works so much better. Later BD

 

When discussing tire pressures for street cars, there's a small but important point to keep in mind: for street use we tend to talk about cold tire pressures. At the track we talk about hot pressures because that's what really matters. Depending on a whole lot of variables including the difference between ambient cold and hot air temp as well as how hard I'm driving, in my own experience the hot pressure might only be a 2-3 psi over cold, or it could be 6+. Hoosier suggests using 0.7 psi for every 10 deg F of tire temp - not ambient.

In general, for most street tires, best grip will come in the mid 30s hot. In practice most of us aren't going to stop in the middle of a spirited drive on the street to measure tire pressures and use a compressor to add. So you might want to just start with 32 cold and then take a "hot" measurement to make sure pressures are in the mid 30s and not above. With upper 30s you're likely going to lose grip as well as see uneven wear.

 

I'm going to leave them at 32 for now. Maybe later this fall I'll be taking them to southern Ohio for some more spirited driving to test them out.
Thanks for all the tips!