Why NOT to drive with your autocross "street" tires on the street... - Mazda3 Forums : The #1 Mazda 3 Forum
View Poll Results: What should i do?
Have a tire shop patch the nail hole and keep running it like normal 11 55.00%
Call Tire Rack and schmooze for a deal on a replacement 4 20.00%
Just leave the nail in until it actually starts leaking then deal with it 1 5.00%
Stop autocrossing 0 0%
Steal someone else's tire 4 20.00%
Voters: 20. You may not vote on this poll

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post #1 of 13 (permalink) Old 03-11-2008, 10:03 PM Thread Starter
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Why NOT to drive with your autocross "street" tires on the street...

I've got a new set of RE-01R's on some SSR comps, which I've only run with twice, but so far they are proving to be pretty amazing. However, I am lazy, and since my events are pretty close to me I have been swapping them on in the comfort of my own driveway the night before, and I left them on yesterday since I didn't use the car.

Went to put my stockers back on tonight, and lo and behold, there is a FAR nail piercing all the way straight through the right-rear tire. I'm pretty mad... I've heard that it's not good to run patched tires, I think it's even illegal in track racing but not sure about autocross. Any thoughts/experience?


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post #2 of 13 (permalink) Old 03-11-2008, 10:14 PM
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Re: Why NOT to drive with your autocross "street" tires on the street...

I've run on patched Azenis without issues, but the hole wasn't near the shoulder. I did run that tire in the rear though, as fronts take the most beating.
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post #3 of 13 (permalink) Old 03-11-2008, 10:17 PM Thread Starter
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Re: Why NOT to drive with your autocross "street" tires on the street...

Yeah, I wouldn't be as scared about running a patched tire in the rear either, but I like to rotate them F/R (they're directional) extremely often to keep wear as even as possible. Is there such a thing as like a heavy-duty patch maybe? And I'm definitely interested in what the rulebook has to say about the situation, I'm having trouble finding anything relevant.


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post #4 of 13 (permalink) Old 03-11-2008, 10:22 PM
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Re: Why NOT to drive with your autocross "street" tires on the street...

I don't know about heavy-duty patch. I suggest rotating tires to get even wear, but whenever you are at the event, run the patched one in the rear.
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post #5 of 13 (permalink) Old 03-11-2008, 11:43 PM
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Re: Why NOT to drive with your autocross "street" tires on the street...

I would go ahead and run the patch in the tire. I have also heard its not allowed. But you shouldn't get any crap with autox. unless your are a member and have a very competitive class, I doubt anybody will call you out on it either. But for sure at a track event I am pretty sure if its visible to tech....then will pull you. Kinda all depends on the seriousness of the tech inspector. Certain a track official has more to loose with their insurance.

But I would get in the habit of switching them out on the track. Not sure how your events are held, but most people are pretty stand up and shouldn't mess with your rims.

If you are that worried I have seen people even chain them to trees or just together. That certinly will make it hard for someone to steal, and very noticeable.

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post #6 of 13 (permalink) Old 03-12-2008, 02:48 AM
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Re: Why NOT to drive with your autocross "street" tires on the street...

sorry to hear that bro....at least u can patch yours....i had to replace my truck's tire cuz some metal cut open a big hole...have to replace it with a new one....$180

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post #7 of 13 (permalink) Old 03-12-2008, 03:22 AM
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Re: Why NOT to drive with your autocross "street" tires on the street...

If it is not near the sidewall, go ahead and have it patched. To my knowledge, there is nothing in the SCCA Solo rulebook about running on a patched tire. Especially if its a smaller, local event...very rarely will anyone give you much flak about it. If it IS close to the sidewall, chances are you shouldn't bother...it will end up leaking anyway.
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post #8 of 13 (permalink) Old 03-12-2008, 04:07 AM Thread Starter
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Re: Why NOT to drive with your autocross "street" tires on the street...

Thanks for all the suggestions guys... it's not too near the sidewall, it's about 2/3 of the way towards the sidewall but still barely in the middle 1/3 of the tread I'd say. I'm gonna take it to get patched tomorrow and we'll seee how it lasts!


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post #9 of 13 (permalink) Old 03-12-2008, 08:22 AM
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Re: Why NOT to drive with your autocross "street" tires on the street...

[quote author=cali_axela link=topic=105293.msg2143171#msg2143171 date=1205305632]
Thanks for all the suggestions guys... it's not too near the sidewall, it's about 2/3 of the way towards the sidewall but still barely in the middle 1/3 of the tread I'd say. I'm gonna take it to get patched tomorrow and we'll seee how it lasts!
[/quote]

Ex-tire store manager here -

A repair should be fine as long as it is done correctly (and the hole the nail made is not too big). It should be a combination repair done from the inside with a combination unit that has a patch with an attached plug to fill the hole. Filling the hole is important as you do not want water entering the hole and rusting the belts.

From an autocross standpoint you may want to keep that tire in the back to reduce the stresses, but really, a good repair should hold. The center of the tread area does not go through as much flexing as the outer shoulders.

Good luck.

2008 New England Region SCCA HS Class Champion
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post #10 of 13 (permalink) Old 03-12-2008, 11:42 AM
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Re: Why NOT to drive with your autocross "street" tires on the street...

ive actually plugged a couple of R-tires. The rear R6's we used at nationals in Gstock were plugged. It was on the outside tread block section about one inch from the sidewall. Before nationals, we ran it on the front for one event on the fresh plug.

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