Panther plus on a decently driven Z at Sebring WILL NOT hold up. Sebring is a horrible track for brakes. Also, expect some tire chunking there as well.

 

LOL Nick, I like how you understately say "decently driven" if that is anywhere near the way you drive, there are very few of us in that ballpark.

 

I have raced my Z at too different tracks, In general street tires will perform the best with half the tread gone. With full tread and you heat them up they will "chunk". Tire pressures are not the real "gauge". To know what is really happening you need to measure tire temps (with a pyrometer). There should be only a 5 degree difference between the outside and inside tempertures (i.e. 140 142 145). You adjust tire pressure to bring the middle number in-line (i.e. if your readings were 140 142 138 you would let air out). My rule of thumb on a left hand course is I go out with 30 all-around with the exception of the RF (at 31) and adjust after 3 "hot laps". If you cannot get within tolerance then you have an alignment (camber problem). Doesn't matter whether you run race tires or street the principle is the same. Bottom-line if you are overheating your tires you are scrubbing off speed . . . adjust your line or trailbrake to rotate the car, This is probably more than you wanted to know, but I threw a lot of money away on tires until I learned ! Good luck to you

 

I have also chunked tires on the Z on track days (even with shaved r-compound tires). I think I needed more camber to prevent this (so I now have the Cusco A-arms).

My best success on track days with street tires have been with shaved Toyo T1-S tires. Good grip, no squealing, and no chunking (even before my A-arms). I think shaving any tire should help greatly to prevent or reduce chunking.

 

I’m very pleased with Goodyear Eagle F1 GS-D3: both rain and shine.

 

I won't forget the time he decided to take me for a off track tour at Roebling Road.
Tire chunking really you mean for the average driver too.Now I do not come close to driving 100% and thats the way I like, no exceptions.So Nick do you really think the 350z will be harder on tires at Sebring than my SRT4 was.You might remember me better if I remind you of being my instructor at Roebling Road (2 days) and Sebring, Chin events,Red SRT4(Eric drove like *** clown at Sebring).well I'm in the world of the 350Z now.So I will be looking for some advise from you when I go back to Sebring with Safe Motorsports.What brake pads do you recommend I get on the 350Z then since you know I am a puss in the braking zone.

Memories: Name that instructor.

 

Eric, you drove so well at Roebling. Sebring was disastrous for you, but I think it was a combination of factors the had you psyched out and left you cold.

At this point, I'm not sure what to tell you to expect, tire-wise, because I'm just not sure what your cornering/braking forces will be. Run about 37 psi cold up front, and 36 in the rear, and see what your hot pressures run up to, and how the car feels (this, if still stock). As for brakes, of course I recommend our pads... Will you be changing them before events and after?

 

Yea disastrous is a good way to descibe that day.I've been studying that track day in day out on vid,ichin to get back out there,soon.As far as brake pads, looking for a set I can drive to the event run and drive back home on.Then switch out pads and rotors at home.What happened to the supercharger I see you are now TT.How's that doing for you,well you do not have to worry about blower belts anymore .
Thanks for your help Nick as always much appreciated.
Eric

 

Eric, give me a call during business hours... (863) 324-6692.