BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques
 
GTB Performance
Post Reply
 
Thread Tools Search this Thread
      08-24-2011, 09:38 AM   #1
paradocs98
Major
 
paradocs98's Avatar
 
Drives: 2014 991 Carrera S
Join Date: May 2009
Location: NY

Posts: 1,344
iTrader: (0)

How cold outside to stop using R-comps?

Looking for advice from some of the usual track junkies...I plan on doing a couple more HPDE events into the fall, where ambient temps here in the Northeast can get into the 50s or even 40s. (Watkins Glen in late September and NJMP in late October.)

At what point should I no longer run my Nitto NT01s on track? Are you still able to get them up to temperature in the cold? I'd imagine at some point as the outside temperature falls they get hard and lose grip, so I'll just run my street tires instead, but I'm not sure at what temperature to worry about this. Thanks in advance.
paradocs98 is offline   United_States
0
Reply With Quote
      08-24-2011, 10:12 AM   #2
lucid
Major General
 
lucid's Avatar
 
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
iTrader: (0)

As long as it is not freezing (and I doubt that they'd let people on the track if it was freezing), you can use r-compounds if you can put heat into them. I haven't found it to be a problem. You just need to be patient and corner slowly and try to warm them up by accelerating and braking on the straights. September and October are not prolematic in the NE in general. You might also need to be careful with some parts of the track (tarmac) being warmer and colder than others.
lucid is offline   United_States
0
Reply With Quote
      08-25-2011, 07:54 AM   #3
Gearhead999s
Major General
 
Gearhead999s's Avatar
 
Drives: F25 2.8d(wifes)F82 M4
Join Date: Apr 2007
Location: Toronto

Posts: 6,779
iTrader: (0)

I have run down as low as 0c(32f) on Hoosiers with no great issues.Just need a few laps to get some heat in the tires.My Nt05's seem to need about 5c before they start to work.I have done lots of bike track days when it is cold and you just need a longer warm up time to get some grip.I find my track tires are not good when there is snow or ice on the ground though
Gearhead999s is offline  
0
Reply With Quote
      08-25-2011, 07:13 PM   #4
Radiation Joe
Veni Vidi Vici
 
Radiation Joe's Avatar
 
Drives: '11 JB/BBe-6sp-e90
Join Date: Jul 2008
Location: Macungie PA

Posts: 2,749
iTrader: (0)

Garage List
2011 e90 M3-Sold  [4.25]
2003 RS6 - Sold  [0.00]
2009 e90 M3 - Gone  [0.00]
2003 M3 SOLD  [0.00]
old 2002  [5.00]
What Lucid and Gearbuddy said.

It just takes a little longer to get heat into them.
__________________

Dinan compliment of stuff plus PF rotors and RG63s. Enough for now.
Why, yes. I am an abrasive bastard.
Radiation Joe is offline   United_States
0
Reply With Quote
      08-25-2011, 08:20 PM   #5
m3bs
Lieutenant
 
Drives: '11 M3 ZCP, 95 M3 Track Toy
Join Date: Feb 2008
Location: North Augusta, SC

Posts: 544
iTrader: (1)

Depends on the tire. I've run Nittos and Toyos with temps in the mid-teens with good results, but I've had trouble getting Hankooks and Michelin PSCs up to temp in the 40s in a 30 minute session. Old, cold PSCs and a cold morning put me into the wall in 2004. Lesson Learned.
m3bs is offline  
0
Reply With Quote
      08-25-2011, 09:32 PM   #6
Radiation Joe
Veni Vidi Vici
 
Radiation Joe's Avatar
 
Drives: '11 JB/BBe-6sp-e90
Join Date: Jul 2008
Location: Macungie PA

Posts: 2,749
iTrader: (0)

Garage List
2011 e90 M3-Sold  [4.25]
2003 RS6 - Sold  [0.00]
2009 e90 M3 - Gone  [0.00]
2003 M3 SOLD  [0.00]
old 2002  [5.00]
Quote:
Originally Posted by m3bs View Post
Depends on the tire. I've run Nittos and Toyos with temps in the mid-teens with good results, but I've had trouble getting Hankooks and Michelin PSCs up to temp in the 40s in a 30 minute session. Old, cold PSCs and a cold morning put me into the wall in 2004. Lesson Learned.
You're not the first person to say that about PSCs.

Someone else here put it into the blue armco at WGI on cold PSCs. So remember to get up to speed carefully on cold days.

Personally, I've driven on them year round in California. They are noticeably weak when it's cold, though.
__________________

Dinan compliment of stuff plus PF rotors and RG63s. Enough for now.
Why, yes. I am an abrasive bastard.
Radiation Joe is offline   United_States
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 02:23 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST