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Author Topic:   Purestock tire choices
Dmac
Dirt Roller

Total posts: 23
posted November 11, 2004 04:10 PM  
We run 200 lap enduro's at our track and you have to run a street tire. Max size 275/60/15. I currently run Cooper cobra GT radials size 275/60/15. Has anyone ever run a Kelly tire or anything else with good success?

dirttrackmafia
Dirt Full Roller

Total posts: 26
posted November 11, 2004 06:28 PM  
We raced na open comp in casa grande az in the pro stock div. and they required us to run a 235-75-15 or 235-70-15.three of us bought three different brands coopers were bought and i bought performance tires from big o tire company. they lost half of the tires where i only lost one due to getting into another car. Theres was from tires that werent any good...Idont like the coopers.

Speedway65
Dirt Freak

Total posts: 344
posted November 12, 2004 08:14 AM  
We have good luck with Daytona SR's ,seem to have a really tough sidewall.

streetstock82
Dirt Forum Racer

Total posts: 81
posted November 13, 2004 05:22 PM  
Goodyear eagle GT II seem to work pretty well and Mastercrafts Are a hot seller around here.

Speedracer92
Dirt Full Roller

Total posts: 70
posted November 16, 2004 07:37 AM  
Way up north we pretty much all run the coopers and a few firehawks.

HOOSIERDIRT
Dirt Roller

Total posts: 24
posted November 17, 2004 01:11 PM  
I run on a slippery clay track in Southern Indiana and the Mastercraft tires seem to grip better on the slick track than a lot of other brands I have tried.

Speedway65
Dirt Freak

Total posts: 344
posted November 17, 2004 01:48 PM  
Which Mastercraft tire the Avenger GT ?

Dean Stinger
Cooper Cobra
Mastercraft Avenger GT
All look the same to me,all made by the same company.Might the Mastercrafts be softer?


HOOSIERDIRT
Dirt Roller

Total posts: 24
posted November 18, 2004 05:24 AM  
Yes, Mastercraft Avenger GT.

racin fool
Dirt Roller

Total posts: 12
posted November 18, 2004 06:12 PM  
i dont know i think its a certain track thing at a track we used to run they ran mastercrafts and then at the track we run now everybody runs cooper cobras

wildbil476
Dirt Newbie

Total posts: 1
posted November 18, 2004 09:36 PM  
quote:
Originally posted by racin fool:
i dont know i think its a certain track thing at a track we used to run they ran mastercrafts and then at the track we run now everybody runs cooper cobras

We used to run the Coopers and Mastercrafts, but have switched to the Kelly, especially the Lee Turbo Action GT or the Ultra GT....better grip, and a lot more durability

HOOSIERDIRT
Dirt Roller

Total posts: 24
posted November 19, 2004 12:03 PM  
Most of you probably already know this, but if you want to get more "stickiness" out of your tires, wipe them down with acetone until they are good and soaked about two days before your race. You will get a lot more grip. But you will not get as much life out of your tires by doing this. It is a give and take, but you will definitely notice a difference. Note: this may not be legal at some tracks.

17dracing
Dirt Full Roller

Total posts: 50
posted November 26, 2004 06:24 PM  
You can also use plain old wd-40 .It will drop the durometer about 4 points.

ryan
Dirt Forum Champ
Total posts: 776
posted November 28, 2004 08:10 PM  
Dmac- Whats the rollout(circumfrence) on those 275's. Do you run them on 8" rims? Thanks

Dmac
Dirt Roller

Total posts: 23
posted November 30, 2004 10:50 AM  
I do use 8 inch rims, not sure of the roll out (car is in storage) but the diameter is 28.5 inches

Speedway65
Dirt Freak

Total posts: 344
posted November 30, 2004 12:29 PM  
According to my rough calculations roll out should be around 89.5

Diameter x Pi= cicumfrence
28.5 x 3.14=89.49

ryan
Dirt Forum Champ
Total posts: 776
posted November 30, 2004 08:32 PM  
Thanks Dmac and Speedway.

Dmac
Dirt Roller

Total posts: 23
posted December 01, 2004 08:03 AM  
Checked on the Cooper site. The diameter is 28.06 x 3.14 = 88.1 roll out.

uforacing51
Dirt Forum Champ
Total posts: 570
posted December 15, 2004 12:16 PM  
Had a lot of luck with weathermasters!!

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