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Author Topic:   Hoosier tires
happy
Dirt Full Roller

Total posts: 73
posted April 14, 2005 11:09 AM  
Does anybody else have problems with the size markings on the Hoosiers and end up having to buy extra tires to make the correct stagger? For those of you that run the A-R's and G-Y's is this common with them also?

[This message has been edited by happy (edited April 14, 2005).]

CCGRT9s
Dirt Full Roller

Total posts: 31
posted April 14, 2005 01:27 PM  
The chalk marks are not actual inflated sizes. The roll out will be about 2- 2 1/2" SMALLER than the chalk mark. This ballpark will get you close, then if you need to stretch (to increase size & decrease stagger), inflate to 30lbs and sit in the sun for about an hour. Once you run the tire, it's size should then stay pretty consistant. I like to store my biggest tires with no air in them, and my smallest with about 20 lbs in them. That will help week to week. Check out Hoosiers website, lots of info there also. The D-40 and H-40 are good, most have trouble getting any consistancy out of the A-40, they are **** and most don't run them.

happy
Dirt Full Roller

Total posts: 73
posted April 15, 2005 05:33 AM  
Strange, most people up here find the "D" too soft and the "H" too hard and run the "A". I actually called Hoosier and talked to them about what temps ranges the tires were designed to run at and found the "A" to be the tire that most people should be running. But like I said earlier the sizes marked on the tires come in anywere from 2 inches small and have gotten them big as 3 inches, to me that just seems like they are writing any old **** on them they feel like and has made it real diffacult.

NJantz
Dirt Forum Champ
Total posts: 755
posted April 15, 2005 05:42 AM  
yes Hoosier and American RAcer are both guilty of their tires never measuring what they are supposed to.

36modracer
Dirt Maniac

Total posts: 126
posted April 15, 2005 06:28 AM  
i also like to run the new D tires either in a heat race or if you can run a few laps at practice, they will get a heat cycle in them and after sitting a week then they will cure over a little and last longer. I have used this method for many years with good success. I also have had good luck with having a new set for qualifying only on the rears and last season they lasted all yr long with the nubs just barely wearing off by seasons end. I would run hotlaps and qualifying only on them.if they get pretty hot then they will grow. I had two new rr tires grow and inch or so after a good run on practice day going 4 hard laps. the tires got good and scuffed in though.

wfoondirt
Dirt Forum Champ
Total posts: 505
posted April 15, 2005 07:02 AM  
I usually avoid using A's also. They are too inconsistant and have a tendancy to glaze unless you are running an abrasive track. I will usually do like m36 and scuff the d's in a week before I run them usually qualifing or hot laps.

As far as chalk marks go cc is right on the money.

2nd2none
Dirt Forum Champ
Total posts: 755
posted April 15, 2005 07:12 AM  
the best way to do it is to take your tape measure with you and measure them yourself!

CCGRT9s
Dirt Full Roller

Total posts: 31
posted April 15, 2005 08:20 AM  
We would love to be able to run A's, but I will always run a good seasoned D before I do that. We have a great balanced setup, and will have nubs left on a D where others will have chunked the tread off in spots. Our H's will "fire up" in 1-11/2 laps, and last for up to 8 features. A's always glaze over on the first or second caution, then you are scre*ed for rest of race. Any tips from you guys who always run A's? I have ground and siped to no avail.

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