Slick size differences?

chris ok · 05-01-2012, 09:48 AM

I had the same problem w my goodyears 3/4inch. tried stretching, nfg.
I set tires by measuring around them and not tire pressure as I was tought by a drag racer friend who always measures to get tires equal over making equal pressure.
I have to set one at 11, one at 14.5. I hope to afford a real pair this year.
I know its tough to find your tire size, good luck.
car looked good at 4 wide, sorry I did not get to introduce myself as I was helping a friend and his son in SuperStock.
Chris

buzzinhalfdozen · 05-01-2012, 02:16 PM

Art, though I've never done it or heard of a drag racer doing it my nephews who circle jerk race do it all the time. They will overinflate a tire, leave it in the sun for a bit all the while checking it's circumference, when it's close they'll let the excess pressure out and remeasure. It takes a while but seems to work for them. WARNING! this is a procedure that people who go round in circles perform use at your own risk! Joe

Ed Wright · 05-02-2012, 09:00 AM

Did it all the time in my sprint car days. Works on bias tires, doubt it would work with radials. Out in the sun for a few hours with 30 psi will certainly stretch one. Measure it after airing it up, and keep checking. 1/2" is no problem.

Jeff Lee · 05-02-2012, 03:21 PM

Art,
I had this problem once and M/T offered to replace them free even though they were 1/2 used. Try it. All they can say is no.

rod · 05-02-2012, 04:15 PM

last summer i bought a pair of Phoenix F/X tires from jegs. i was told they were a matched pair. however when they arrived [and that was one on one day the second on the second day -i had to wonder if that was on purpose] anyway there were, in fact, not matched. when i called jegs, the guy was that was normal and well within what they call matched. it was summer here, so i did the roundy round deal, put the small tire out in the sun. man i did not take long. now the small tire is bigger than the 'big' tire. just by a little, point is if you do that, keep close watch. i have been using a tape and measuring the loaded radius. footprint seems to be only a bit different.
this is a case of becoming smart as you age. i bought my first set in 1967, and i have no idea how many i have bought since. i never ever checked any of those for circumference. point is didn't know, didn't worry. nowadays, you worry about everything and it drives you crazy.
rod in AZ

Ed Wright · 05-02-2012, 06:30 PM

I found if I stretched one a little too far I could completely deflate it over night, and air it back up to the correct pressure and usually get some of it back.

05-01-2012, 09:48 AM	#1
chris ok Senior Member Join Date: Jul 2002 Location: Long Island, New york Posts: 592 Likes: 131 Liked 46 Times in 29 Posts	Re: Slick size differences? I had the same problem w my goodyears 3/4inch. tried stretching, nfg. I set tires by measuring around them and not tire pressure as I was tought by a drag racer friend who always measures to get tires equal over making equal pressure. I have to set one at 11, one at 14.5. I hope to afford a real pair this year. I know its tough to find your tire size, good luck. car looked good at 4 wide, sorry I did not get to introduce myself as I was helping a friend and his son in SuperStock. Chris

05-01-2012, 02:16 PM	#2
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Slick size differences? Art, though I've never done it or heard of a drag racer doing it my nephews who circle jerk race do it all the time. They will overinflate a tire, leave it in the sun for a bit all the while checking it's circumference, when it's close they'll let the excess pressure out and remeasure. It takes a while but seems to work for them. WARNING! this is a procedure that people who go round in circles perform use at your own risk! Joe __________________ Joe Buchanan SS/BX 3117

05-02-2012, 09:00 AM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Slick size differences? Did it all the time in my sprint car days. Works on bias tires, doubt it would work with radials. Out in the sun for a few hours with 30 psi will certainly stretch one. Measure it after airing it up, and keep checking. 1/2" is no problem. __________________ Ed Wright 4156 SS/JA

05-02-2012, 03:21 PM	#4
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Slick size differences? Art, I had this problem once and M/T offered to replace them free even though they were 1/2 used. Try it. All they can say is no. __________________ Jeff Lee 7494 D/S '70 AMX

05-02-2012, 04:15 PM	#5
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 315 Likes: 0 Liked 20 Times in 15 Posts	Re: Slick size differences? last summer i bought a pair of Phoenix F/X tires from jegs. i was told they were a matched pair. however when they arrived [and that was one on one day the second on the second day -i had to wonder if that was on purpose] anyway there were, in fact, not matched. when i called jegs, the guy was that was normal and well within what they call matched. it was summer here, so i did the roundy round deal, put the small tire out in the sun. man i did not take long. now the small tire is bigger than the 'big' tire. just by a little, point is if you do that, keep close watch. i have been using a tape and measuring the loaded radius. footprint seems to be only a bit different. this is a case of becoming smart as you age. i bought my first set in 1967, and i have no idea how many i have bought since. i never ever checked any of those for circumference. point is didn't know, didn't worry. nowadays, you worry about everything and it drives you crazy. rod in AZ

05-02-2012, 06:30 PM	#6
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Slick size differences? I found if I stretched one a little too far I could completely deflate it over night, and air it back up to the correct pressure and usually get some of it back. __________________ Ed Wright 4156 SS/JA