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Puncture Repair To Semi's

ming spec

By ming spec,
in Motorsport Discussion & Builds

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Strik3r Experienced

Strik3r

Posted
Posted

Have you confirmed that the nail has actually penetrated through all the rubber ? I've seen what i thought was a nail in my tyre before - turned out to just be the head mashed into the rubber with no puncture.

I have had a semi slick repaired after a puncture before, and done 3 track days on it after the repair with no dramas. The repair needs to be done properly, but i dont see how it would change the performance of the tyre all that much ? Then again, both of the above posters have been into motorsport a lot longer than I have, so they probably know what they are talking about :)

Duncan Grand Master

Duncan

Posted
Posted

hahah well in this case you've actually tried it and lived so you are one up on me! I'm not giving it a go, tyres just take too much punishment, I've seen (and had) too many let go for no reason to trust that that does have something wrong

Ant97GTR Grand Master

Ant97GTR

Posted
Posted

I have had an RE55 repaired then tested at over 200kmh at PI. In my case the tyre was almost new and I couldn't bear to throw it away....had it been older I probably would've thrown it due to the reasons Dunc mentions above.

I don't have an issue with it but be aware that there is a possibility (however slight) that the tyre will let go.

ming spec Contributor

ming spec

Posted
  • Author
Posted

yer it has def punctured it. pumped it up and splashed water over it = bubbles.

there is about 70% tread left on them so would love to repair it if i know its safe and tried by a number of guys on here.

i had a front left let go on me not that long ago on Lakeside braking from 200km/h so i know that "oh f**k me" feeling and really wanna make sure its safe.

other problem is that i cant just replace one tire with full tread on a gtr can i ??? in regards to slight difference in rolling diameter or am i worrying to much..

cheers guys

Strik3r Experienced

Strik3r

Posted
Posted
yer it has def punctured it. pumped it up and splashed water over it = bubbles.

there is about 70% tread left on them so would love to repair it if i know its safe and tried by a number of guys on here.

i had a front left let go on me not that long ago on Lakeside braking from 200km/h so i know that "oh f**k me" feeling and really wanna make sure its safe.

other problem is that i cant just replace one tire with full tread on a gtr can i ??? in regards to slight difference in rolling diameter or am i worrying to much..

cheers guys

you're worrying too much. If they are at 70% tread, your talking a few mm difference in rolling diameter. ATTESSA is picky.. but not that picky :blink:

ming spec Contributor

ming spec

Posted
  • Author
Posted
i priced one of my re55s once, got it fix, my next trake day i did my fastest time, not saying the tires was better then b4 but it was fine at the track, just tell bob jane of whoever that u race on these tires so they do a great job!

best of luck

how many laps in total have you done on it after the repair. was it only sprints or 6+ lap sessions on them

cheers

Beer Baron Grand Master

Beer Baron

Posted
Posted

it really depends on where it's punctured and how badly. anywhere near or on the sidewall = throwaway. if it's on the tread face and is not too large consider repairing it. take it somewhere and explain that you will be doing over 200kph and will be doing heavy braking etc. get an internal vulcanised repair done and then put that tyre on the least "used" spot (most likely left or right rear depending on the track).

it certainly is a risk. have you ever watched the tyre cam in v8 supercars etc and seen the kind of loads that tyres are under on a track? then imagine that tyre with a hole and a repair on it. but I'e done it once before and I know many other tight arses who have without issue but just be aware of what you're in for...

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