Are these tires still ok after 10 laps Nordschleife

Blech Büchse · 10-20-2018, 04:43 AM

Hey guys,

I was on my very first track day yesterday. I did 10 laps Nordschleife in 2 to 3 lap stints, moderate speed because I’m unexperienced.
Outside temp was around 12C (55 F) so really cold. I started with 34 PSI tire pressure and it went up to like 39PSI.
The car has the track alignment and stock tires.

The stock tires don’t look and feel good now. They moved rubber to the inside. So what do you experienced guys say, what went wrong and can I still use this tires? Does the rubber bead go away?

thanks for some tips.

JeromeS13 · 10-20-2018, 05:56 AM

They're fine. The built up rubber will wear away.

Badgerbimmer · 10-20-2018, 10:36 AM

They look good!

Roostie · 10-20-2018, 03:52 PM

That's not rubber from your tires, that's call "pickup" and it comes from boogers of other tires. Most of those boogers are from soft track tires. You can use a stiff scraper to pull off the pickup, or you can just wait for it to wear off.

Other than the pickup, your tires look great, you didn't overdrive the car like I usually do.

TrackClub · 10-20-2018, 11:10 PM

It is also a sign that your pressures were way too high (build up in the middle and zero wear on the shoulders).
Starting oem tires at 34 is way too high, given 32 is recommended for normal street driving. Cheers!

Blech Büchse · 10-21-2018, 01:59 AM

Thanks for your answers!
I already thought that the pressures were to high at 39 warm and will lower them next time when I m on a track.
Other than that I will just wait for the rubber to wear and life with the noise the tires make.
Thx guys!

TrackClub · 10-21-2018, 09:03 AM

A slight correction on my post above:
Ive just realized your car is not a 1le and your tires are not G3s, so i dont know what GM recommended cold street pressure is. Check the door sticker please and adjust from there. Not having driven on those tires id offer a general advice of 2psi less then what is specified on a door as a start. If they feel greasy after warming up that would be a sign of over heating and a need to lower the pressure further. From here go by 1psi and see how they feel. And perhaps ask on the forum what other folks run these tires hot pressure wise on a track. Cheers!

Tim202 · 10-23-2018, 09:57 AM

A bit off topic, but what were your times?

Way jealous of anyone that gets to run that track. I'm sure I'll never get over there.

Ryephile · 10-23-2018, 10:02 AM

You just picked up some clag during your cool-down. They're feel odd until you wear it off.

The hot pressures seem like they're a whiff high, but looking at your wear pattern, they look fine. On the 1LE setups the target is roughly 37 PSI hot, but they're also more track-oriented tires than what you're running. That's just FYI.

10-20-2018, 04:43 AM	#1
Blech Büchse Drives: summit white 2016 SS Join Date: Dec 2016 Location: Stuttgart, Germany Posts: 8	Are these tires still ok after 10 laps Nordschleife Hey guys, I was on my very first track day yesterday. I did 10 laps Nordschleife in 2 to 3 lap stints, moderate speed because I’m unexperienced. Outside temp was around 12C (55 F) so really cold. I started with 34 PSI tire pressure and it went up to like 39PSI. The car has the track alignment and stock tires. The stock tires don’t look and feel good now. They moved rubber to the inside. So what do you experienced guys say, what went wrong and can I still use this tires? Does the rubber bead go away? thanks for some tips. Attached Images

10-20-2018, 10:36 AM	#3
Badgerbimmer Drives: ZL1 A10 Join Date: Dec 2017 Location: Wisconsin Posts: 306	They look good! __________________ My rides: 2017 Camaro ZL1 A10 2015 Jeep Grand Cherokee Diesel 2012 Audi S4 1992 Porsche America Roadster 1990 BMW 325Ic

10-23-2018, 10:02 AM	#9
Ryephile Hot Dog Drives: '17 1SS 1LE Join Date: Feb 2016 Location: Metro Detroit Posts: 1,937	You just picked up some clag during your cool-down. They're feel odd until you wear it off. The hot pressures seem like they're a whiff high, but looking at your wear pattern, they look fine. On the 1LE setups the target is roughly 37 PSI hot, but they're also more track-oriented tires than what you're running. That's just FYI. __________________ 2017 "M1SS1LE" in Hyper Blue w/PDR

10-20-2018, 05:56 AM	#2
JeromeS13 Drives: 2017 1SS/1LE Join Date: Sep 2016 Location: FL Panhandle Posts: 1,559	They're fine. The built up rubber will wear away.

10-20-2018, 03:52 PM	#4
Roostie all it takes is cash Drives: 2018 LS V6 1LE; E350 wagon; Model3 Join Date: Jan 2017 Location: San Diego Posts: 372	That's not rubber from your tires, that's call "pickup" and it comes from boogers of other tires. Most of those boogers are from soft track tires. You can use a stiff scraper to pull off the pickup, or you can just wait for it to wear off. Other than the pickup, your tires look great, you didn't overdrive the car like I usually do.

10-20-2018, 11:10 PM	#5
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	It is also a sign that your pressures were way too high (build up in the middle and zero wear on the shoulders). Starting oem tires at 34 is way too high, given 32 is recommended for normal street driving. Cheers!

10-21-2018, 01:59 AM	#6
Blech Büchse Drives: summit white 2016 SS Join Date: Dec 2016 Location: Stuttgart, Germany Posts: 8	Thanks for your answers! I already thought that the pressures were to high at 39 warm and will lower them next time when I m on a track. Other than that I will just wait for the rubber to wear and life with the noise the tires make. Thx guys!

10-21-2018, 09:03 AM	#7
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	A slight correction on my post above: Ive just realized your car is not a 1le and your tires are not G3s, so i dont know what GM recommended cold street pressure is. Check the door sticker please and adjust from there. Not having driven on those tires id offer a general advice of 2psi less then what is specified on a door as a start. If they feel greasy after warming up that would be a sign of over heating and a need to lower the pressure further. From here go by 1psi and see how they feel. And perhaps ask on the forum what other folks run these tires hot pressure wise on a track. Cheers!

10-23-2018, 09:57 AM	#8
Tim202 Drives: 2018 ZL1 1LE Join Date: Dec 2016 Location: San Diego, CA Posts: 218	A bit off topic, but what were your times? Way jealous of anyone that gets to run that track. I'm sure I'll never get over there.

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