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It was a good day...... it was a bad day..... almost a disaster

Tomster

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So I'm out at the Daytona Speedway having fun on the track with my good friend Jim @16Kobra obra

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I go over the car as usual. Verify all the major systems are track worthy. The tires were serviceable with plenty of life left on them.

I'm well into the first session and I felt an unusual vibration around the roval turn 3 and 4. The wind was somewhat strong running perpendicular to turn 4. I figured it was just the wind creating mechanical turbulence somewhat similar to that of a ridgeline near an airport during approach.

I closed the windows and around the same turns, the vibration seemed to go away. Fine, I said to myself, continue. Back to the gas pedal.

So fast forward to the paddock where I always do a cursory check on the car between sessions. Jim is heckling me with comments like what are you doing??..

Here is what I found. Keep in mind that this was the right rear tire. The right rear tire is the most important tire on the car at Daytona. It bears the most proportionate weight and load while on the roval portion of the course.

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Now, some good news..... they removed the old hazardous rumble strips in the bus stop. They were replaced with more traditional strips that do not cause tire damage. It was nice to see.

I want to thank Jim for his help. He loaned me a wheel with a tire so that I could get my last run in.
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The Demon

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Glad you got back in OK. That looks nasty.
 

MAGS1

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Wow! Any idea what caused the damage Tom? Luckily you were able to get back to the paddock without car damage or bodily injury.
 

K4fxd

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Any idea what caused that?
 

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Tomster

Tomster

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Wow... that was still holding pressure?
Yes. But as you can see, a lot of the structural support of the tire was gone. Had I went honking on that tire, it would have come apart. That would have possibly been a spin and subsequent wall impact.
 
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Tomster

Tomster

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Wow! Any idea what caused the damage Tom? Luckily you were able to get back to the paddock without car damage or bodily injury.
No. Everyone who runs Daytona knows that you have to get your tires up to temp and pressure before going to town. I did all of that. The only thing I can speculate would be debris on the track or something.

The infamous and hazardous rumble strips that were in the bus stop were removed. So not that..

The tires were all inspected before I went out. As you can see, there is no unusual wear that would have indicated an alignment issue.
 

Egparson202

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Glad you dodged that bullet. Kudos for awareness. Prolly saved you for something bad.
 
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Tomster

Tomster

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Glad you dodged that bullet. Kudos for awareness. Prolly saved you for something bad.
I always run through the same routine between sessions. I don't just hop in the car and go. People sometimes look at me like I'm nuts, but it's catches like these that thwart disaster.

If you do Daytona enough, you understand how important tires, pressure, and alignment are. What you can't forsee is damage from other sources such as debris or defects.

Why this tire almost let go is a mystery. The wear and pressures were just fine. Go figure.
 

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Coastal-Mach

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Iā€™m glad you and the car are ok Tom. Nothing wrong with having a routine for safety and OCD, especially when it comes to racing.
 

stanglife

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Close one - glad you're ok.
 
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Tomster

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Thank goodness it didnā€™t completely let go.
I saw this happen 4 years ago at VIR to a GT350R. Here the the photos of the resulting damage to the car from the tire flapping at speed

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Damn @Tomster ... šŸ˜²

I'm glad everyone and everything came through this safely :sunglasses:

I've mentioned it before but I will say it again - I for sure know that you are 'on it' with pre (and post) session checks and safety etc and I've no doubt that mentality has just paid off for you.

After the last tyre related incident, I'm also glad they have altered the rumble strips around the bus stop.

Stay safe out there :like:

WD :like:
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