Tire temperature "hot" ??
Thread Starter
Pro
Joined: Sep 2014
Posts: 701
Likes: 179
From: Muskoka ontario
Tire temperature "hot" ??
Here in Port Charlotte FL 88*F today and out on I-75, 75MPH. tire temperatures show "WARM" ( on the instrument cluster) just as they do in the driveway on a 40*F morning. Has anyone ever seen them read "COLD" or "HOT" ever and under what circumstances......tks,
Doug.
Doug.
Drifting
Joined: Jun 2013
Posts: 1,472
Likes: 33
From: Billings Montana
Cold; yes, Hot; no. I don't remember for sure but I think it was down around 30 before it read Cold. I didn't drive it I just had never seen anything but Warm and wanted to make sure it was working.
Thread Starter
Pro
Joined: Sep 2014
Posts: 701
Likes: 179
From: Muskoka ontario
Thanks, I'm going to guess someone will say they have only ever seen "HOT" when the car is being tracked .....
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,102
From: Fulshear, TX
"Tire temps are split into three categories: cold (below 45 degrees), warm (45-115 degrees) and hot (above 115 degrees). In "cold" mode ABS intervenes sooner and more progressively, while the differential is more aggressive to limit inside wheelspin. As temps increase, ABS control intervenes later and becomes more lenient, while differential locking ramps up more slowly."
http://www.edmunds.com/car-reviews/f...ut-the-c7.html
http://www.edmunds.com/car-reviews/f...ut-the-c7.html
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Thread Starter
Pro
Joined: Sep 2014
Posts: 701
Likes: 179
From: Muskoka ontario
"Tire temps are split into three categories: cold (below 45 degrees), warm (45-115 degrees) and hot (above 115 degrees). In "cold" mode ABS intervenes sooner and more progressively, while the differential is more aggressive to limit inside wheelspin. As temps increase, ABS control intervenes later and becomes more lenient, while differential locking ramps up more slowly."
http://www.edmunds.com/car-reviews/f...ut-the-c7.html
http://www.edmunds.com/car-reviews/f...ut-the-c7.html
Team Owner
Joined: Mar 2012
Posts: 49,349
Likes: 3,922
From: Best Island in the U.S.
St. Jude Donor '12 thru '17
Yup, that is one option. I've seen it a few times this winter. It's kinda funny the first time it shows the tires as Frozen. 
C7 has no temp sensor in tire/wheel assemblies. Temp is determined through a variety of parameters including TPMS & an algorithm based on ambient temperature, solar load & tire tread thickness.
Temp readouts:
• Frozen (below 32°)
• Cold (46.4°F to 32°)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated
C7 has no temp sensor in tire/wheel assemblies. Temp is determined through a variety of parameters including TPMS & an algorithm based on ambient temperature, solar load & tire tread thickness.
Temp readouts:
• Frozen (below 32°)
• Cold (46.4°F to 32°)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated
Last edited by Steve_R; Mar 11, 2015 at 05:22 PM.
Le Mans Master
Joined: Nov 2005
Posts: 6,099
Likes: 64
From: Houston TX
St. Jude Donor '09
My owners manual just says "cold" "warm" and "hot" with no indication of other messages or the temp ranges.
In my car, I've only seen it say "warm" when I've checked. I'll check this summer when the ambient temps are in the high 90s and I'm running on the highway and see if they go to "hot".
Tire Temperature: Shows tire
temperature status as either Cold,
Warm, or Hot. Warm is typical for
normal driving while Hot is typical
for aggressive driving. Unknown
may be displayed if tire temperature
information is unavailable.
temperature status as either Cold,
Warm, or Hot. Warm is typical for
normal driving while Hot is typical
for aggressive driving. Unknown
may be displayed if tire temperature
information is unavailable.
Le Mans Master
Joined: Dec 2013
Posts: 5,888
Likes: 1,559
From: Calgary Alberta
Yup, that is one option. I've seen it a few times this winter. It's kinda funny the first time it shows the tires as Frozen.
C7 has no temp sensor in tire/wheel assemblies. Temp is determined through a variety of parameters including TPMS & an algorithm based on ambient temperature, solar load & tire tread thickness.
Temp readouts:
• Frozen (below 32°)
• Cold (46.4°F to 32°)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated
C7 has no temp sensor in tire/wheel assemblies. Temp is determined through a variety of parameters including TPMS & an algorithm based on ambient temperature, solar load & tire tread thickness.
Temp readouts:
• Frozen (below 32°)
• Cold (46.4°F to 32°)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated
Le Mans Master
Joined: Dec 2013
Posts: 5,888
Likes: 1,559
From: Calgary Alberta
My owners manual just says "cold" "warm" and "hot" with no indication of other messages or the temp ranges.
In my car, I've only seen it say "warm" when I've checked. I'll check this summer when the ambient temps are in the high 90s and I'm running on the highway and see if they go to "hot".
In my car, I've only seen it say "warm" when I've checked. I'll check this summer when the ambient temps are in the high 90s and I'm running on the highway and see if they go to "hot".
Safety Car
Joined: Jan 2015
Posts: 3,941
Likes: 499
From: Northern Virginia
Drifting
Joined: Oct 2011
Posts: 1,872
Likes: 333
From: Olmsted Falls Ohio
St. Jude Donor '12 thru '24
If you have the PDR, you can see the algorithm's computed temperatures by using the Cosworth toolbox software. Take a PDR recording and input it into the toolbox software, click the stats tab, and then the tires tab. It will display a minimum and maxmum temperature for each tire and lap in that session, .
Last edited by pickleseimer; Mar 11, 2015 at 10:36 PM. Reason: addl info
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,018
Likes: 12,401
From: NE South Carolina
C7 has NO temp sensor in tire/wheel assemblies.
Temp is determined through a variety of parameters including
TPMS & an algorithm based on ambient temperature,
solar load & tire tread thickness.
Temp readouts:
• Frozen (below 32°)
• Cold (46.4°F to 32°)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated
With Frozen indicator ON, adhesion's a concern.
Cosmetic cracks may appear in sidewalls which won't affect tire performance/longevity.
Note the comment about cracks!!