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Author Topic:   Tires/tubes
hsracer158
Dirt Full Roller

Total posts: 33
posted May 19, 2005 08:03 PM  
I currently use cooper cobra tires, 235 70 15 with tubes. We have to use dot tires, and 7 inch rims, no beadlocks. My question is can I use these tires tubless and run the 14-15 #'s air pressure we need to run? Anybody who can help thanks
Rick

ryan
Dirt Forum Champ
Total posts: 776
posted May 19, 2005 08:09 PM  
I wouldn't go under 20 on the right and 16 on the left with tubes on street tires.

Cally66
Dirt Full Roller

Total posts: 65
posted May 20, 2005 01:42 AM  
we run as low as 17 on the right side street tires 15 on the left with out tubes if you use tubes you need to relocate the hole for valve stem is in the center on the rim it's hard to air up but you will not spin a tube


Raceman17
Dirt Maniac

Total posts: 165
posted May 20, 2005 06:41 AM  
Also throw a little baby power on the inside of the tire before you mount it up.
Later

ispin
Dirt Full Roller

Total posts: 48
posted May 20, 2005 07:00 AM  
I run 18#rf 16#rr 13#lf 13#lr on streets no tube. If track gets rough I run them up a little.

DangerZoneRacing
Dirt Maniac

Total posts: 176
posted May 20, 2005 08:07 AM  
When I was running dirt our right rear was tubed and we would run it right at 15psi. We had a rule we couldnt be under 15 psi on the right side. Ran the same tire and tube for 3 years b4 the cords went. In the 3 years it never went flat or blew. Good luck.

racer17j
Dirt Forum Champ
Total posts: 5390
posted May 22, 2005 04:06 PM  
Yes make sure it is a radial tube i did that when i used to run the street tires and used a tractor tube did not last long. i have never had to move the stem hole on any rims.

    

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