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Old 01-15-2015, 01:14 AM   #1
erke0034
 
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When do you say tires are warm enough for maximum grip

Hello everyone. What is your reference point for sticky tires. When do you say tires are warm enough for maximum grip.
after xx psi increase in tire pressure while driving? xx minutes of spirited driving? burnout?
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Old 01-15-2015, 03:02 AM   #2
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I'm interested in the answer also.
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Old 01-15-2015, 03:11 AM   #3
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Old 01-15-2015, 08:35 AM   #4
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just bake em up. I don't seriously think anyone has every taken a temperature of them. weather/road conditions are going to always constantly change so there is no set numbers. bake em up and drive accordingly.
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Old 01-15-2015, 09:05 AM   #5
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I think I read 40 degrees and up. The problem isn't just with traction it's with cracking as well. I know someone here in town who drove his in cold weather and blew out tire on his zl1. He had just checked air that morning.
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Old 01-15-2015, 11:23 AM   #6
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I have a laser thermometer for track days. I learned to take inside shoulder, center, and outside shoulder temps to dial in camber to the specific track.

The answer of when you get the best grip requires you to do a good, grippy lap and then pull off and measure. The answer differs from tire-to-tire, though (different compounds require more/less heat for absolute best grip), so your question lacks some information. In my opinion. Which is only that.
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Old 01-15-2015, 12:05 PM   #7
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This is a loaded question and I assume you are specificaly talking about the stock goodyear tires. I think if you could graph the grip vs. rubber temperature you would find that it is more like a peak than a plateau. The grip continues to increase right up to the point the rubber gets molten and sloughs off. It is much easier to keep the tires on the performance edge on a 90 degree day than a 60 degree day. I have found it impossible on a 40 degree day... even drifting every corner the fronts don't get hot enough to prevent oversteer.
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Old 01-15-2015, 12:16 PM   #8
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Old 01-15-2015, 12:57 PM   #9
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Quote:
Originally Posted by jessrayo View Post
This is a loaded question and I assume you are specificaly talking about the stock goodyear tires. I think if you could graph the grip vs. rubber temperature you would find that it is more like a peak than a plateau. The grip continues to increase right up to the point the rubber gets molten and sloughs off. It is much easier to keep the tires on the performance edge on a 90 degree day than a 60 degree day. I have found it impossible on a 40 degree day... even drifting every corner the fronts don't get hot enough to prevent oversteer.
Yes, I am talking about stock GY's. My car is my DD, I've attended only 4 track days last summer. At the track I was at beginner class, I was not driving at the limits. As a DD car, I am assuming that 2-3 psi increase in tire pressure is enough for a good grip. Until that point I drive easy.

Quote:
Originally Posted by 370zyzfr1 View Post
I think I read 40 degrees and up. The problem isn't just with traction it's with cracking as well. I know someone here in town who drove his in cold weather and blew out tire on his zl1. He had just checked air that morning..
I think cracking is a different story. I am not driving if it is below 40.
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Old 01-15-2015, 03:31 PM   #10
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I never found that the Stock GY's were any good, maybe I was over driving the tires..
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