Michelin Cup 2 after 5 track days

Achtung_M3 · 12-07-2022, 04:15 PM

Pretty sure it was from running in the cold at COTA for 3 days in Nov., temps around +/- 40.

Then followed by 2 days at MSR houston, warmer temps, but not hot. As well a few chilly mornings in the upper 30's as a daily driver, the tires are only 2 months old.

Running camber plates at -3.2 and KW HAS. Obviously going to back off the camber.

Opinions? Thoughts?

Limegrntaln · 12-07-2022, 10:05 PM

Wheew, spicy. Thunderhill is an hour from my house. This is what keeps me from going, weekly.

Hit_Apex · 12-08-2022, 12:54 PM

Check hot temps across the tire with your next set and back off camber until temps even out inside to out. It's also possible you are over driving a bit causing understeer rather than getting the car rotated so that outside front can get set.

Forzanerazzurri · 12-09-2022, 12:36 AM

That's sexy

tsk94 · 12-09-2022, 10:23 AM

Less camber and probably less hot pressure based on the 2nd photo of it being corded near the center.

PLF69 · 12-10-2022, 09:42 PM

Quote:

Originally Posted by Hit_Apex

Check hot temps across the tire with your next set and back off camber until temps even out inside to out. It's also possible you are over driving a bit causing understeer rather than getting the car rotated so that outside front can get set.

I'd second that, definitely some overdriving going here, what is your toe setting 0 ?

gnx · 12-11-2022, 01:19 AM

Quote:

Originally Posted by tsk94

Less camber and probably less hot pressure based on the 2nd photo of it being corded near the center.

Exactly

D_SheerDrivingPleasure · 12-11-2022, 08:16 AM

The camber and pressure adjustments will help a bit but 5 days is to be expected on a 3,900 lbs front engine car.

PLF69 · 12-11-2022, 12:20 PM

Quote:

Originally Posted by D_SheerDrivingPleasure

The camber and pressure adjustments will help a bit but 5 days is to be expected on a 3,900 lbs front engine car.

Indeed, on the M4C Vert (4300lbs) I had to replace the front cup2s after 3 days and the rear were shot after 5.

D_SheerDrivingPleasure · 12-11-2022, 12:51 PM

Quote:

Originally Posted by PLF69

Indeed, on the M4C Vert I had to replace the front cup2s after 3 days and the rear were shot after 5.

Ditto. I cooked a set of A052s in 3 track days despite rotating criss cross after each day.

It's been Toyo RRs ever since. They are a tad slower but wear great, tolerate heat and cost half the price of most super 200TW tires. You can't street drive them though.

tsk94 · 12-11-2022, 07:00 PM

Agreed, 5 days is good already. But if you can get more with a few easy adjustments why not?

jmg · 12-13-2022, 12:40 AM

I'm also running -3.2 on the same tires. Will report if I can make them last longer than 5 days, but honestly, 5 sounds about right.

fl1by · 12-24-2022, 02:43 PM

Are you running square setup? I if so what sizes and wheels? I'd like to run a square setup, but having xDrive might make it a little more sensitive to matching circumference..?

Achtung_M3 · 12-28-2022, 11:13 PM

Quote:

Originally Posted by fl1by

Are you running square setup? I if so what sizes and wheels? I'd like to run a square setup, but having xDrive might make it a little more sensitive to matching circumference..?

Stock wheels.

12-07-2022, 04:15 PM	#1
Achtung_M3 Enlisted Member 29 Rep 33 Posts Drives: 2022 M3 MT Join Date: Nov 2021 Location: Texas iTrader: (0)	Michelin Cup 2 after 5 track days Pretty sure it was from running in the cold at COTA for 3 days in Nov., temps around +/- 40. Then followed by 2 days at MSR houston, warmer temps, but not hot. As well a few chilly mornings in the upper 30's as a daily driver, the tires are only 2 months old. Running camber plates at -3.2 and KW HAS. Obviously going to back off the camber. Opinions? Thoughts? Attached Images
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12-07-2022, 10:05 PM	#2
Limegrntaln Major General 13600 Rep 7,008 Posts Drives: 2022 DG/BLk xDrive M4C Wk 34 Join Date: Mar 2008 Location: Sacramento Area iTrader: (3) Garage List 2022 G82 M4 Competi ... [9.31]	Wheew, spicy. Thunderhill is an hour from my house. This is what keeps me from going, weekly. __________________ 2022 DravitGrau /Black Full Merino M4 Competition M xDrive / Production Week 34/ Delivered 10/19/21/ IG: dravit_m4_comp YT: G Dubyou
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12-08-2022, 12:54 PM	#3
Hit_Apex Riding the knock sensor 2413 Rep 1,605 Posts Drives: 21 X5MC \| 23 M4CSL Join Date: May 2008 Location: PCH iTrader: (1) Garage List 2021 BMW X5MC [0.00]	Check hot temps across the tire with your next set and back off camber until temps even out inside to out. It's also possible you are over driving a bit causing understeer rather than getting the car rotated so that outside front can get set. __________________
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12-09-2022, 12:36 AM	#4
Forzanerazzurri Banned 6920 Rep 3,277 Posts Drives: E46 M3 Coupe/G80 M3CX Join Date: Jul 2021 Location: Alberta iTrader: (0) Garage List 2003 BMW M3 Coupe [0.50] 2022 BMW M3 Competi ... [5.12]	That's sexy
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12-09-2022, 10:23 AM	#5
tsk94 Lieutenant Colonel 1526 Rep 1,597 Posts Drives: E92 M3, E82 128i, F82 M4, E36 Join Date: May 2017 Location: Calgary iTrader: (2)	Less camber and probably less hot pressure based on the 2nd photo of it being corded near the center.
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12-11-2022, 08:16 AM	#8
D_SheerDrivingPleasure Captain 1100 Rep 924 Posts Drives: F80 Join Date: Aug 2020 Location: NYC iTrader: (0)	The camber and pressure adjustments will help a bit but 5 days is to be expected on a 3,900 lbs front engine car.
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12-11-2022, 07:00 PM	#11
tsk94 Lieutenant Colonel 1526 Rep 1,597 Posts Drives: E92 M3, E82 128i, F82 M4, E36 Join Date: May 2017 Location: Calgary iTrader: (2)	Agreed, 5 days is good already. But if you can get more with a few easy adjustments why not?
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12-13-2022, 12:40 AM	#12
jmg Lieutenant General 18848 Rep 14,138 Posts Drives: G82 M4C X-Drive Join Date: Mar 2013 Location: Orange County, CA iTrader: (1) Garage List 2022 G82 M4C X-Drive [9.85] 2018 F80 M3 CS [9.87] 2019 i3 BEV [0.00]	I'm also running -3.2 on the same tires. Will report if I can make them last longer than 5 days, but honestly, 5 sounds about right. __________________ 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
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12-24-2022, 02:43 PM	#13
fl1by First Lieutenant 696 Rep 394 Posts Drives: G80, Raptor, STI and C8 Join Date: Sep 2020 Location: Southeast Virginia iTrader: (0)	Are you running square setup? I if so what sizes and wheels? I'd like to run a square setup, but having xDrive might make it a little more sensitive to matching circumference..?
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