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Author Topic:   Reconditioning older tires?
jammin
Administrator
posted February 08, 2001 10:50 PM
Is there anything out there that will help on this? I know there have got to be other guys out there that have some used tires that are not too bad as far as condition, but our McCreary's get hard over the winter.....anything off the shelf that will help?


dqr-7
Member
posted February 08, 2001 11:17 PM
FIRST BUFF THE GLAZE OFF WITH A 36 GRIT SANDER DISC. have soaked them in tranny fluid or brake fluid. they dont always chk the tire.


jklostermann
Member
posted February 09, 2001 10:47 AM
Bleach! I found this out when I Drag Raced a few years back. It will make the rubber nice and soft.


Chad
Member
posted February 10, 2001 03:39 PM
A 50/50 mixture of tuolene and xylene is what an engineer at Goodyear told me to use. I have before, and it did seem to help. Don't forget to put 10-14 oz. inside the tire as well. I'd also like to 2nd the other post that suggested buffing the tires. This is definitely a must and should be done first (and always) before every race. Check out any top late model or sprint car team. They always buff their tires before every race. Just my thoughts.


GnarlyCar
Member
posted February 11, 2001 01:31 AM
Having never raced on McRearys, I can't say firsthand, but I know that the Hoosiers I run are way past thier prime as far as softness goes at about half the tread depth. The thickness (or lack thereof) of the rubber directly affects how soft the track thinks the tire is. The best way to explain it is like this: Take a 1 inch piece of foam rubber between your fingers and pinch it tight.. you get about a 1/4 inch thick peice of hard rubber. Now take a 1/2 inch piece of the same foam and pinch that.. you get a 1/8 inch thick piece of hard rubber. The difference is that the first piece compressed 3/4 of an inch and the second compressed only 3/8. So, with half the thickness of rubber, you only get half the effect of the softness of it. In other words, as the tread on your tires gets thinner, the track thinks they're harder. Hope this makes sense...

just a theory, but I think it's sound..
Matt


race8k
Member
posted February 11, 2001 07:51 AM
I think what makes the tire hard is heat cycles.The more cycles the harder it gets.I don't wear out tires because wheel spin does not make speed.Can win on new tirs or maybe second night but by third night on tires car is back to third or worse.


race8k
Member
posted February 11, 2001 07:55 AM
Hey chad do you leave the toulene and xylene in the tire or do you drain before the race? Where do you get the stuff? Do you also apply to the outside of the tire and how often? Thanks.


dirt mod 70
Member
posted February 11, 2001 06:41 PM
sell them to the stock car guys....then go buy some new ones. works every time....LOL


MOD RACER#93
Member
posted February 11, 2001 11:04 PM
Have used tuolene and xylene in the past. This stuff is very bad. Use caution and plenty of fresh air.

BE **** CAREFUL!!!!!!!!!!!

Chad
Member
posted March 02, 2001 12:09 PM
Sorry it's taken me a while to respond. As the Tuolene and Xylene, I have been told to leave it in the tire as well as coat the outside. Telling you this I'm not going to say that it won't wear out the tire prematurely, but it will definitely soften the tire and give you some speed, especially if you have to qualify. I want to second the previous post about using caution and proper venilation.


7a
Member
posted March 04, 2001 10:26 AM
some good ideas guys we tried a lot of things
we now fill all or tires with nitrogen only
air has to much moisture gets the tires to hot try it


Goldigger
unregistered
posted March 24, 2001 10:04 PM           
quote:
Originally posted by Chad:
A 50/50 mixture of tuolene and xylene is what an engineer at Goodyear told me to use. I have before, and it did seem to help. Don't forget to put 10-14 oz. inside the tire as well. I'd also like to 2nd the other post that suggested buffing the tires. This is definitely a must and should be done first (and always) before every race. Check out any top late model or sprint car team. They always buff their tires before every race. Just my thoughts.

Some chemicals can be bad, so watchout, were talking toxic stuff, sometimes detrimental and can cause cancer just with minimal skin contact. Careful is right, they have pulled alot of these Chemicals off of store shelves for this reason.