Checking slicks on FED for rollout. Use to be same,another side effect of too long getting to track, Now almost 1" difference at 7 psi.

Best way to equalize. Have in past pumped to 50 psi and layd in sun,mostly more rollout but also equize at times. 35* and rain out today and while before above 55*. So what have you done and results?

No need to equalize rollout.

excuse me? Maybe not with what you are running but with a solid mount FED it needs to be almost perfect. Or so the guys who have been running them for decades tell me,hell what do they know.

Please explain reasoning on not equalizing.

been told shrinking bigger tire best route.

You don't race.

So applying for Ed's position?

If concerned about how long taking to get operation rolling contributions are welcomed.

Phil you racing today? Guessing since on here,answer is no. Are rods in your car torqued?

This message has been edited. Last edited by: wideopen231,

For those with real input or suggestion. I did find that shrinking bigger tire works great or shows promise back to .25" difference. Will keep check and see if measurement remains.

quote:

Originally posted by wideopen231:
I did find that shrinking bigger tire works great or shows promise back to .25" difference.

What did you use to heat the tire up?

not the sun today. PM sent to avoid bs.

Rain today, raced yesterday.

quote:

not the sun today. PM sent to avoid bs.

That PM somehow got in my inbox. What the hell are you doing using a hair dryer???

I don’t know how you shrink a tire but my thinking says it will grow right back when it gets hot. I never measure my tires just mount and go and never had an issue in 24 years of racing except for the only set of Goodyear’s I ever ran and they would run straight mount on one side but flip them and car would goo right. I left them on mount so car went straight until they wore out then back to Hoosiers.

quote:

Originally posted by Canted Valve:

quote:

not the sun today. PM sent to avoid bs.

That PM somehow got in my inbox. What the hell are you doing using a hair dryer???

must have been in system. Heck you where not even on page no way I clicked wrong person. Oh well message got where needed to be all is good.

BIG hair dryer.

let air out of tire. heat tire in sun or other means as I had to. Let cool and pump up to operating pressure and remasure. My change but its still holding exact same measurement.

As for change later I had old fella who has been racing for decades and selling racing tires longer tell me it was best approach. One reason I love chatting with old timers,they got some tricks.

HERE'S the thread that explains why Chris used heat to shrink his tires. His method of how he did it was also clever.

I’m definitely going to try shrinking the larger of the 2 tires the next time I have this happen. I’m considering building a cardboard box large enough to hold the tire, piping the exhaust from my truck into the top of the box and have smaller exit holes around the lower outer sides to let the exhaust out to heat the tire up in the absence of sun and heat which is common where I live.

I say do not worry about it. Take it out to the track and run it, then if it is pulling to one side swap them side to side or try to change them.

not worried as said above already corrected it. Why gp to track with something that you know is going to be problem.Wasted trip,money and wear and tear to learn what you pretty much knew leaving house. Plus if suspect it and car does go left or right and you figure thats issue,correct it and still does it because something you overlooked was real problem.Now you have 2 wasted trips.

quote:

Originally posted by Curly1:
I say do not worry about it. Take it out to the track and run it, then if it is pulling to one side swap them side to side or try to change them.

Why would you not measure them to begin with?
Swapping side to side just moves the problem.
How much time and money gets wasted going to the track to sort out a thought to be suspension issue, and it dissapears after a tire change. And it gets blamed on the tire manufacturer.
I would say something stupid like do you just take pistons or bearings out of the box and use them, but I see that happens a lot.......

Used or new tires ? If they have been heat cycled and ran I don't know that you will change them appreciably .

^^^^^^^You can’t. Once run you’re done. Make them right like Chris did before first run and you’ll be good to go.