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Plugging Cup2 tire?

Old 06-13-2019, 10:06 PM
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horns
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Default Plugging Cup2 tire?

Would you plug this tire and drive on it for the remainder of the tire life if it was only street driven?
Old 06-13-2019, 10:17 PM
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9914s
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Only street. Absolutely.
Old 06-13-2019, 10:25 PM
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venom51
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A plug will be fine for street driving unless the tire was run for a long period vastly under inflated. The danger of a compromised tire is the internal damage that can't be seen without pulling the tire off the rim. That's why tire shops usually won't plug. They pull them to patch from the inside to see if the tire has been driven for an extended period under inflated thus destroying the inner sidewalls. Those are the so called "plugged" tire failures.

I wouldn't go hurdling around the track on a plugged tire but have no problem running to the store on one.

Old 06-13-2019, 10:26 PM
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R.Deacon
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my rear tires seem to be screw/nail magnets , once in a tire a week old , plugged n-p ran them out , done so numerous times in the last 4 years , now carry a 12 volt air pump in front frunk to pump up slow leaker to make it to a shop for plug.

Last edited by R.Deacon; 06-13-2019 at 11:15 PM.
Old 06-13-2019, 10:32 PM
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horns
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Thanks for the quick replies. My plan was to plug and get to the shop for a new tire at a minimum. It hasn't been driven much with low pressure, so I think I'll plug and drive (no track).

Any tire repair kit recommendations? I don't think anything in my pocket kit for my motorcycle will work lol. Probably worth having one in the car anyway.
Old 06-13-2019, 10:39 PM
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mdrums
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I would not plug the tire but I would dismount tire and have a glued in patch installed. Properly done you will be absolutely OK to drive the street on.
Old 06-13-2019, 10:43 PM
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GrantG
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Let’s keep in mind that these cars are capable of about 200mph on the street. So, if you are inclined to do any high speed driving, better to replace the tire. Any repair of a tire totally removes its speed rating...
Old 06-13-2019, 10:44 PM
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As a former home builder I have run around with plenty of plugged tires. Never had one fail. The mushroom plugs are the way to as they do seal from the inside and you'd be hard pressed to centrifugal force one out. String types are ok and they are non-vulcanized rubber that will bond to the tire when heated but I prefer the mushroom type.

https://www.amazon.com/Stop-Go-Tubeless-Tire-Plug/dp/B006B1XNPQ/ref=sr_1_14?hvadid=78340316413106&hvbmt=be&hvdev=c&hvqmt=e&keywords=mushroom+tire+plug+kit&qid=1560476640&s=gateway&sr=8-14 https://www.amazon.com/Stop-Go-Tubeless-Tire-Plug/dp/B006B1XNPQ/ref=sr_1_14?hvadid=78340316413106&hvbmt=be&hvdev=c&hvqmt=e&keywords=mushroom+tire+plug+kit&qid=1560476640&s=gateway&sr=8-14
Old 06-13-2019, 10:46 PM
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venom51
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Originally Posted by GrantG
Let’s keep in mind that these cars are capable of about 200mph on the street. So, if you are inclined to do any high speed driving, better to replace the tire. Any repair of a tire totally removes its speed rating...
If you are doing 200mph on the street it likely won't be a tire failure that kills you.
Old 06-13-2019, 10:49 PM
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Maverick787
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Originally Posted by venom51
A plug will be fine for street driving unless the tire was run for a long period vastly under inflated. The danger of a compromised tire is the internal damage that can't be seen without pulling the tire off the rim. That's why tire shops usually won't plug. They pull them to patch from the inside to see if the tire has been driven for an extended period under inflated thus destroying the inner sidewalls. Those are the so called "plugged" tire failures.

I wouldn't go hurdling around the track on a plugged tire but have no problem running to the store on one.

https://www.youtube.com/watch?v=WxnkGiAOOhM
Interesting video for damage caused by low pressure, but his comments have zero to do with a plug. The nail repair removal just uncovered another problem low pressure damage.
Old 06-13-2019, 10:51 PM
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bogey1
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have it removed and patched. Not expensive and could save you in the long run...
Old 06-13-2019, 10:58 PM
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venom51
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Originally Posted by Maverick787
Interesting video for damage caused by low pressure, but his comments have zero to do with a plug. The nail repair removal just uncovered another problem low pressure damage.
He is only pointing out why he won't just plug and send them on their way. I see it as a good policy. He has no way of knowing that the owner found the intrusion immediately or has been inflating the tire every few days or so when they notice it is low or how many miles were put on the tire in the under inflated condition. There are a ton of people who aren't as detailed in their assessment of the condition of the car they are running around in as perhaps would be the average Rennlister.

Even
this this
is still essentially a plug as it does also fill the void left by the intruding object. It just has the extra benefit of sealing a larger area inside the tire. Still the reason to not just plug and go as a shop owner is the liability of sending a tire that has unseen damage internally that could result in catastrophic failure 10 miles down the road and as we all know that shop owner would immediately get the blame since "That tire was fine before you plugged it."

Last edited by venom51; 06-13-2019 at 11:15 PM.
Old 06-13-2019, 11:12 PM
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Maverick787
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Originally Posted by venom51
He is only pointing out why he won't just plug and send them on their way. I see it as a good policy. He has no way of knowing that the owner found the intrusion immediately or has been inflating the tire every few days or so when they notice it is low or how miles were put on the tire in the under inflated condition. There are a ton of people who aren't as detailed in their assessment of the condition of the car they are running around in as perhaps would be the average Rennlister.

Even this is still essentially a plug as it does also fill the void left by the intruding object. It just has the extra benefit of sealing a larger area inside the tire. Still the reason to not just plug and go as a shop owner is the liability of sending a tire that has unseen damage internally that could result in catastrophic failure 10 miles down the road and as we all know that shop owner would immediately get the blame since "That tire was fine before you plugged it."
Old 06-14-2019, 01:28 AM
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RockyTopTenn
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If you can find a tire store that will use a pull thru plug like this, then I might consider it. But there is no way in hell I would do a track/DE day or run over 100 or so with that. Unless you are hoping for a Darwin Award...
Old 06-14-2019, 01:31 AM
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MarcusG
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Originally Posted by bogey1
have it removed and patched. Not expensive and could save you in the long run...
This.


Patch it and forget it. I live in Los Angeles and on my last set of tires had at least one patch in every tire. Put a lot of miles on them without issue.

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