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  •  » NASCAR tire sizes

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    9/25/2022 3:11 PM  #1

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,246

    NASCAR tire sizes

    NASCAR changed from 15” wheels/tires to 18” tires and aluminum spoked wheels.  Watching the TX race today, I am seeing an awful lot of crashes caused by tire failure.
    I wonder if size matters when it comes to failure rate.
    Also wondering if the bigger wheels allowed for bigger brakes?   I haven’t been paying attention for a couple of years. I read they wanted to make the cars more closely resemble the appearance of showroom cars.  I think they did accomplish that.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    9/25/2022 4:23 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
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    Re: NASCAR tire sizes

    This year F 1 went from 13” to 18” .
    The change did not cause tire failures but it created “purposing” which took some of the teams quite a few races to solve the problem.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/26/2022 5:45 AM  #3

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: NASCAR tire sizes

    If the tires remain the same overall size (width and height) I could see that being a problem.  Less overall tire to me would mean the possibility that the tires are running hotter, which could certainly lead to more failures.  Truth be told that may be what they want.  Nothing's changed since Smokey Yunick was running NASCAR.  NASCAR want's wrecks.  That's why people watch.  Its what restrictor plate racing is all about (give all the cars the same power, tighten up the pack, more chance for collisions). 
     

     

    9/26/2022 7:26 AM  #4

    Rudi
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    Re: NASCAR tire sizes

    TKOPerformance wrote:

    If the tires remain the same overall size (width and height) I could see that being a problem.  Less overall tire to me would mean the possibility that the tires are running hotter, which could certainly lead to more failures.  Truth be told that may be what they want.  Nothing's changed since Smokey Yunick was running NASCAR.  NASCAR want's wrecks.  That's why people watch.  Its what restrictor plate racing is all about (give all the cars the same power, tighten up the pack, more chance for collisions). 
     

     
    The way I see NASCAR is it’s a big buck version of demolition derby.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/26/2022 9:51 AM  #5

    6sally6
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    From: Surfside Beach,SC
    Registered: 4/02/2013
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    Re: NASCAR tire sizes

    Rudi wrote:

    TKOPerformance wrote:

     

     
    The way I see NASCAR is it’s a big buck version of demolition derby.

    And a waste of my time anymore!  (SAD butt true )
    6sal6
     

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    9/26/2022 10:44 AM  #6

    rpm
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    From: Bakersfield, Ca
    Registered: 9/17/2013
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    Re: NASCAR tire sizes

    Speaking of NECKCAR, I drove by The Lady in Black last week leaving Sally's place.



    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    9/27/2022 4:29 PM  #7

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
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    Re: NASCAR tire sizes

    TKOPerformance wrote:

    If the tires remain the same overall size (width and height) I could see that being a problem.  Less overall tire to me would mean the possibility that the tires are running hotter, which could certainly lead to more failures.  Truth be told that may be what they want.  Nothing's changed since Smokey Yunick was running NASCAR.  NASCAR want's wrecks.  That's why people watch.  Its what restrictor plate racing is all about (give all the cars the same power, tighten up the pack, more chance for collisions). 
     

    Seems that shorter sidewall would mean less flexing and less heat.  But they sure were having alot of tire failures.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    9/28/2022 10:53 AM  #8

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: NASCAR tire sizes

    MS wrote:

    TKOPerformance wrote:

    If the tires remain the same overall size (width and height) I could see that being a problem.  Less overall tire to me would mean the possibility that the tires are running hotter, which could certainly lead to more failures.  Truth be told that may be what they want.  Nothing's changed since Smokey Yunick was running NASCAR.  NASCAR want's wrecks.  That's why people watch.  Its what restrictor plate racing is all about (give all the cars the same power, tighten up the pack, more chance for collisions). 
     

    Seems that shorter sidewall would mean less flexing and less heat. But they sure were having alot of tire failures.

    My thoughts were less surface area over which to dissipate the heat.  However, not sure which is correct.  Seems like a question DC would know the answer to...

     

    9/28/2022 11:00 AM  #9

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
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    Re: NASCAR tire sizes

    TKOPerformance wrote:

    MS wrote:

    TKOPerformance wrote:

    If the tires remain the same overall size (width and height) I could see that being a problem.  Less overall tire to me would mean the possibility that the tires are running hotter, which could certainly lead to more failures.  Truth be told that may be what they want.  Nothing's changed since Smokey Yunick was running NASCAR.  NASCAR want's wrecks.  That's why people watch.  Its what restrictor plate racing is all about (give all the cars the same power, tighten up the pack, more chance for collisions). 
     

    Seems that shorter sidewall would mean less flexing and less heat. But they sure were having alot of tire failures.

    My thoughts were less surface area over which to dissipate the heat.  However, not sure which is correct.  Seems like a question DC would know the answer to...

     
    Or . . . less surface to flex generating less heat . It must be rocket surgery!🤪

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    9/29/2022 3:25 PM  #10

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
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    Re: NASCAR tire sizes

    Get the laser thermometer out and make your way into a pit crew. Inquiring minds want to know!

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    9/30/2022 5:02 AM  #11

    TKOPerformance
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    From: Newark, DE
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    Re: NASCAR tire sizes

    I'm only 45 minutes from Dover.  25 years ago I knew the director of motorsports and could probably have hooked that up. 

     

     

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