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-   -   One more time, Radial vs Bias Ply (https://classracer.com/classforum/showthread.php?t=26421)

John Lang 06-15-2010 12:29 PM

One more time, Radial vs Bias Ply
 
As it says above what kind of differance, between Radials, and Bias Ply, all other things being equal ! Same gear, same dia, same weight ,etc ! E.T.,MPH, 60 ft , tire life, etc ? Just a differance of opinion ! Thanks .........John...PP.SS It's a stocker !

72Malibu 06-15-2010 08:46 PM

Re: One more time, Radial vs Bias Ply
 
A radial is going to be worth about a tenth, I've never had a bias tire come close to the performance of a radial slick. I get about 100 passes up to 120 passes on a pair of 30x9 Hoosier radial slicks.

rallye bob 06-17-2010 05:57 AM

Re: One more time, Radial vs Bias Ply
 
Quote:

Originally Posted by 72Malibu (Post 192650)
A radial is going to be worth about a tenth, I've never had a bias tire come close to the performance of a radial slick. I get about 100 passes up to 120 passes on a pair of 30x9 Hoosier radial slicks.

Do you swap your tires from side to side? If so, do you have a set schedule for swapping?
I run the (94") 30X9 Hoosier radial slicks, and can only average 75-90 passes before my 60's start going away. I do swap at about every 25 passes....

Michael Beard 06-17-2010 07:28 AM

Re: One more time, Radial vs Bias Ply
 
30" Radial is .12-.13 faster in the 1/4 mile for a similar sized tire, and still a good bit faster than even a 28" bias. I've never rotated mine. Typically run 18psi. 112-115 runs on the M/T 3066R (30x9 radial), been 1.41 60' on cords. 60's are dead-on until 110 runs, then they might blow them off completely, then come right back for a couple runs. I can only remember about 3 runs out of 1,200+ where the tire slipped "just a little". That's why I bracket race on them full time. They print timeslips.

Alan Warman 06-17-2010 12:36 PM

Re: One more time, Radial vs Bias Ply
 
I am getting ready to switch over to radials. So which rim width is the best, 8" 9" or 10".

j gardiner 06-17-2010 05:23 PM

Re: One more time, Radial vs Bias Ply
 
I was told by the Hoosier tire rep not to switch the tires from side to side because you will lose tire life. I just changed mine after 130 runs and they still had a good bit of dot left in them, and I never switch mine.

Myron Piatek 06-17-2010 05:33 PM

Re: One more time, Radial vs Bias Ply
 
I'm gonna have to sit down and count the runs one day, but I swap my Hoosier lightweight radials from side-to-side after every race weekend! I've been happy with the wear and traction. When I didn't swap the slicks often many years ago, it seemed that one side wore a little faster.

67camaroracer 06-17-2010 07:49 PM

Re: One more time, Radial vs Bias Ply
 
Have you ever tested ET street radials vs bias ply? Would the tenth gained for having radials pertain to the ET Streets as well?
Not trying to hijack but haven't seen this question asked just yet.

David Vum


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