07-21-2022, 12:56 PM | #1 |
Second Lieutenant
234
Rep 269
Posts |
First set of tires finally dead
These are the Michelin PS4 that came with the car, ~15 months ago. After 4th and most recent track day, they are loosing chunks of rubber. I haven't seen this before. I assume they are dead and need to be replaced, right? What causes chunks to break off?
Planning to replace with new set of the same - unless there is consensus that something else is way better? I use it for 95% daily commute, 5% track. |
07-21-2022, 08:45 PM | #3 |
Second Lieutenant
234
Rep 269
Posts |
|
Appreciate
1
BMWRacer5232519.00 |
07-21-2022, 08:52 PM | #4 |
Lieutenant Colonel
2519
Rep 1,773
Posts |
Oh yeah, thats a well maintained facility. Def asphalt. I've seen tracks like Sebring tear tires up like that because many sections are concrete and they are very abrasive. Are you sure this is from track? Do you regularly commute on crappy torn up roads?
|
Appreciate
0
|
07-22-2022, 08:10 AM | #5 |
Beware of cheap bait!
709
Rep 715
Posts |
Chunking can happen when tires are quite overheated, but I'm guessing it's a combo of overheat and just being worn out.
Did you run with revmatch? |
Appreciate
0
|
07-22-2022, 08:15 AM | #6 | |
Second Lieutenant
234
Rep 269
Posts |
Quote:
|
|
Appreciate
0
|
07-22-2022, 08:16 AM | #7 | |
Second Lieutenant
234
Rep 269
Posts |
Quote:
Probably they are just worn at this point. |
|
Appreciate
0
|
07-23-2022, 02:30 AM | #9 |
Private
172
Rep 99
Posts |
Also I think for your use case the oem star spec PS4s are the still the best choice. There are more track oriented tires that can take more heat but they dont do well in the rain and are not comfortable on the street.
https://grassrootsmotorsports.com/ar...qMRLYWHotW0TT4 |
Appreciate
1
dimab0233.50 |
07-23-2022, 07:26 AM | #10 |
Captain
1447
Rep 924
Posts |
If you need wet/winter driving them the mps4s* are the way to go. A little soft and numb for the track but given your usage should be good to go. There's nothing else going to give you good wet traction and decent dry traction like that tire.
__________________
2023 F90 M5
Retired - 2021 G82, 2019 440xi, 2020 X7, 2019 X5, 2013 F10, 2010 F10 |
Appreciate
0
|
07-23-2022, 10:41 PM | #11 |
Beware of cheap bait!
709
Rep 715
Posts |
|
Appreciate
0
|
07-23-2022, 10:43 PM | #13 |
Second Lieutenant
234
Rep 269
Posts |
Oh rev match is some organization? Then no, not with them. I thought you meant the feature on the m4 to auto rev match when shifting.
|
Appreciate
0
|
07-23-2022, 11:23 PM | #14 | |
Captain
1447
Rep 924
Posts |
Quote:
__________________
2023 F90 M5
Retired - 2021 G82, 2019 440xi, 2020 X7, 2019 X5, 2013 F10, 2010 F10 |
|
Appreciate
0
|
07-29-2022, 04:10 AM | #15 |
Lieutenant
788
Rep 488
Posts |
Except for the massive "ice storms" i have been though here in Texas the last 46 years!
__________________
|
Appreciate
0
|
08-03-2022, 12:22 PM | #16 |
Lieutenant General
18711
Rep 14,115
Posts
Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA
|
Looks just like my front driver side started chunking after 4 CW track days. Most notably after neglecting to check temps and pressure during a triple digit day at Spring Mountain, which has several high speed right turns. With how heavy our G8Xs are, and how much softer the MPS4S* compound is at the corner compared to the non-star, it seems to be much more temperature and pressure sensitive.
I've since mounted Cup2 (240)... I'll be posting an update on wear characteristics and overall performance when I get my car back and get some more seat time. From my one track day on these tires, however, I've already beat my PB and they are pretty damn good.
__________________
2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3 IG: Raging_G82 |
08-03-2022, 12:40 PM | #17 | |
Second Lieutenant
234
Rep 269
Posts |
Quote:
|
|
Appreciate
0
|
08-03-2022, 12:57 PM | #18 |
Lieutenant General
18711
Rep 14,115
Posts
Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA
|
The MPS4S* has more of the Cup2 compound on it's outer tred, so I imagine it will be about the same or worse, but I figure that since the MPS4S* is a compromise for street wear and occasional track use, I might as well get the track tire for optimal grip since I don't daily drive it!
__________________
2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3 IG: Raging_G82 |
08-04-2022, 09:04 AM | #19 | |
Captain
1447
Rep 924
Posts |
Quote:
the 4s's are not as heat tolerant as the cup2, and the sidewalls are much softer. Cup2* are a lot stickier at 180 degrees.
__________________
2023 F90 M5
Retired - 2021 G82, 2019 440xi, 2020 X7, 2019 X5, 2013 F10, 2010 F10 |
|
08-04-2022, 09:06 AM | #20 |
Captain
1447
Rep 924
Posts |
Yeah but nobody drives in that weather.... Ive completely lost my tolerance for cold. First winter I never wore a jacket...now I have a hoody on at 65 degrees...
__________________
2023 F90 M5
Retired - 2021 G82, 2019 440xi, 2020 X7, 2019 X5, 2013 F10, 2010 F10 |
08-05-2022, 08:29 PM | #21 | |
Lieutenant
788
Rep 488
Posts |
Quote:
Yea used to be in Local Union 146 when i was a kid...coldest I ever felt in was on the runway at Carswell AFB. I swear it was colder than the 4 years I was in Germany! Something about the tarmac, the concrete super cools the air! I almost seen grown men cry that day. They said "drag up". Tools go back in the gang box. Go the F home! Only one time did I see that in the Union. That one day!
__________________
Last edited by M4Tejas; 08-05-2022 at 08:42 PM.. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|