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Author Topic:   which series tire
Dirt Full Roller

Total posts: 68
posted March 08, 2003 06:11 PM  
I need to buy a set of tires for my car. I'm limited to 8 inch tires, no sidewall limitations. I have run 225 and 235 70 series in the past and was wondering if stepping down to a 225 and 235 60 series is worth while. Anyone have any input on this?

Dirt Forum Champ
Total posts: 5390
posted March 08, 2003 06:55 PM  
go as wide as you can but watch your tire roll i think my firestone 235\70\15 are 86inches if u go to to 235\60\15 there about 82 inches.every inch of roll out is about 100 rpm so if u go to the 60's you'll gain about 400rpm.

Dirt Freak

Total posts: 446
posted March 10, 2003 07:29 PM  
You said limited to 8" tires. Do you mean wheels?

Dirt Full Roller

Total posts: 68
posted March 11, 2003 06:18 PM  
8 inches across the top of the tire is what they measure.

Dirt Roller

Total posts: 8
posted March 12, 2003 08:46 AM  
firestone firehawk ss20 235/70/15 are 8 inches across tread width so are firestone indy 500's.

Dirt Full Roller

Total posts: 69
posted March 13, 2003 05:40 AM  
One87racing:The 60 series are what you want.But go Copper Cobras all the way around.Best dirt tire made.

Dirt Full Roller

Total posts: 68
posted March 13, 2003 11:00 PM  
A couple guys at my track ran those last year and they didn't seem to do real well, slipping and sliding everywhere. I ran BFG t/a's and they were some sticky mo fo's, especially towards the end of the night when the track starts to dry out. I've also tried a couple firestones, a dunlop, a michelin, and a goodyear, but the bfg's seem to work the best for me, of course that was on a totally different car so we will see. any one else use these tires with any success besides me?

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