# stretched tires...

**URL:** <https://forums.speedlife.net/t/stretched-tires/45810>\
**Category:** NYSpeed Automotive\
**Created:** [March 28, 2008, 4:43pm UTC](https://forums.speedlife.net/t/stretched-tires/45810 "2008-03-28T16:43:07Z")\
**Posts on this page:** 20\
**Page:** 3

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**Author:** ![cky89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cky89/32/4945_2.png) [@cky89](https://forums.speedlife.net/u/cky89)\
**Post date:** [March 29, 2008, 11:11am UTC](https://forums.speedlife.net/t/stretched-tires/45810/41 "2008-03-29T11:11:15Z")

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> [@fairgentleman Z](#):
>
> Holy shit there is so much wrong in this thread I really don’t know where to start.
> 
> The stiffer sidewall allows the tire to produce more grip at lower slip angles.
> 
> I really would rather arguee calculus to a class of 2nd graders than get into it. So the **extremely digested** version is this:
> 
> NEGLECTING THE BENEFIT OF COMPOUND;
> 
> Take a $30 Walmart all season, a really good performance street tire, and a race compound tire. Purely as an example it takes 10\* of tire input before max lateral force to be produced, 5\* for the performance tire, and 3\* for the r-comp.
> 
> So going through a 15:1 steering ratio you have to crank on the wheel when autocrossing on a cheap all season, on r-comps you don’t need to be so agressive and can produce more grip with less steering input.

Never knew. Good information. :tup:

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**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\
**Post date:** [March 29, 2008, 11:16am UTC](https://forums.speedlife.net/t/stretched-tires/45810/42 "2008-03-29T11:16:05Z")

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> [@fairgentleman Z](#):
>
> Holy shit there is so much wrong in this thread I really don’t know where to start.
> 
> I really would rather arguee calculus to a class of 2nd graders than get into it. So the **extremely digested** version is this

How are people going to learn if, when they ask for it, they get a 2nd grade explanation? Or, as is more common place, no explanation at all.

Just sayin…

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**Author:** ![cky89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cky89/32/4945_2.png) [@cky89](https://forums.speedlife.net/u/cky89)\
**Post date:** [March 29, 2008, 11:17am UTC](https://forums.speedlife.net/t/stretched-tires/45810/43 "2008-03-29T11:17:20Z")

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I’ll be running a uber small stretch on my BBS, just cuz 😃

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**Author:** ![robslowrolla6](https://avatars.discourse-cdn.com/v4/letter/r/53a042/32.png) [@robslowrolla6](https://forums.speedlife.net/u/robslowrolla6)\
**Post date:** [March 29, 2008, 12:22pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/44 "2008-03-29T12:22:14Z")

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i have 215-35-18 tires on 18x7.5 (not sure what the offset is, i think its 38), its not “STRETCHED” but it does have a little bit of a “roll” to it on the sidewalls. however, i dont think it would be that easy to bend the rim at all. i would have to be stupid and hit a pool-sized pothole… it handles good, and looks great… i have friends with 225-35-18 profile tires and their sidewalls are much more flat comapred to mine.

“over-stretching” like in the pics of the VW and the AUDI can be dangerous to ride on.

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**Author:** ![Rsnake91](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rsnake91/32/4996_2.png) [@Rsnake91](https://forums.speedlife.net/u/Rsnake91)\
**Post date:** [March 29, 2008, 12:28pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/45 "2008-03-29T12:28:02Z")

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> [@slasky](#):
>
> ![http://i2.photobucket.com/albums/y29/eurowner/stretchgonebad.jpg](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/3X/2/e/2e80c19837c05f71658226098f4cb0529cecfc77.jpeg)

:lolham:

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**Author:** ![cky89](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cky89/32/4945_2.png) [@cky89](https://forums.speedlife.net/u/cky89)\
**Post date:** [March 29, 2008, 12:29pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/46 "2008-03-29T12:29:10Z")

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I kinda think if I don’t stretch on my bbs that I will rub like a mofo. My car is dropped fuggin hard.

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**Author:** ![Adictd2b00st](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/adictd2b00st/32/7625_2.png) [@Adictd2b00st](https://forums.speedlife.net/u/Adictd2b00st)\
**Post date:** [March 29, 2008, 1:15pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/47 "2008-03-29T13:15:45Z")

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just get normal sized tires…

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**Author:** ![Violator](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/violator/32/7278_2.png) [@Violator](https://forums.speedlife.net/u/Violator)\
**Post date:** [March 29, 2008, 1:57pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/48 "2008-03-29T13:57:48Z")

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> [@fairgentleman Z](#):
>
> Holy shit there is so much wrong in this thread I really don’t know where to start.
> 
> The stiffer sidewall allows the tire to produce more grip at lower slip angles.
> 
> I really would rather arguee calculus to a class of 2nd graders than get into it. So the **extremely digested** version is this:
> 
> NEGLECTING THE BENEFIT OF COMPOUND;
> 
> Take a $30 Walmart all season, a really good performance street tire, and a race compound tire. Purely as an example it takes 10\* of tire input before max lateral force to be produced, 5\* for the performance tire, and 3\* for the r-comp.
> 
> So going through a 15:1 steering ratio you have to crank on the wheel when autocrossing on a cheap all season, on r-comps you don’t need to be so agressive and can produce more grip with less steering input.

Redigested and then regurgitated:

If you are poor and run shitbox wallmart tires during autocrossing then you will get a more responsive car… still wont last long under competition and dangerous under sustained agressive street driving

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**Author:** ![slasky](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/slasky/32/7408_2.png) [@slasky](https://forums.speedlife.net/u/slasky)\
**Post date:** [March 29, 2008, 3:14pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/49 "2008-03-29T15:14:16Z")

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If you think that stretching tires has anything but negative impacts on handling you need to get out of the car scene.

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**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [March 29, 2008, 4:41pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/50 "2008-03-29T16:41:37Z")

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> [@Violator](#):
>
> Redigested and then regurgitated:
> 
> If you are poor and run shitbox wallmart tires during autocrossing then you will get a more responsive car… still wont last long under competition and dangerous under sustained agressive street driving

No. Wallmart shit tires stretched = riding on rim at autox. In fact, I am not even sure you would pass tech if they were stretched too much.

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**Author:** ![ldp82](https://avatars.discourse-cdn.com/v4/letter/l/b3f665/32.png) [@ldp82](https://forums.speedlife.net/u/ldp82)\
**Post date:** [March 29, 2008, 4:47pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/51 "2008-03-29T16:47:06Z")

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“any reputable wheel/tire shop should be able to do it. i know when i did a 215-45 kumho on a 8.5” wheel, it took one shop 90lbs to pop the bead. getting a 225-45 on a 9 and a 245-40 on a 10.5 took another shop 50 lbs"

I do not find this ricey stretching if i did the math right, just got up from a nap. an 8.46" tire on an 8.5" wheel (the 215). an 8.8" wide tire in a 9" wheel (the 225) or a 9.6" on a 10.5" wide wheel (the 245)

i am planning of putting a 205 or 225 (Hoosier or RA1) (8.07 and 8.8 respectively) on an 8" wheel, this combination has proven results.

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<div class="post-metadata">

**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [March 29, 2008, 4:48pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/52 "2008-03-29T16:48:23Z")

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Proven results for what?

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<div class="post-metadata">

**Author:** ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)\
**Post date:** [March 29, 2008, 4:53pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/53 "2008-03-29T16:53:00Z")

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> [@ldp82](#):
>
> i am planning of putting a 205 or 225 (Hoosier or RA1) (8.07 and 8.8 respectively) on an 8" wheel, this combination has proven results.

Putting a 205 on a 8" rim is within the recommend rim width per the tire manufacturer:

[http://www.tirerack.com/tires/Spec.jsp?make=Hoosier&model=R6&tirePageLocQty=](http://www.tirerack.com/tires/Spec.jsp?make=Hoosier&model=R6&tirePageLocQty=)

And 1/2" bigger than Toyo’s recommenation:

[http://marktg.toyotires.com/file/18968.pdf](http://marktg.toyotires.com/file/18968.pdf)

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**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [March 29, 2008, 4:54pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/54 "2008-03-29T16:54:23Z")

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Oh yeah, forgot that hoosier 205 = everyone else’s 225. But still, I’m running 275’s on an 8.5" wheel. More rubber = proven results.

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**Author:** ![66impalass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/66impalass/32/7429_2.png) [@66impalass](https://forums.speedlife.net/u/66impalass)\
**Post date:** [March 29, 2008, 4:57pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/55 "2008-03-29T16:57:43Z")

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> [@slasky](#):
>
> If you think that stretching tires has anything but negative impacts on handling you need to get out of the car scene.

Not completely true, an insane stretch yes, people have a better time running a square set up on E46M, a 265/35R19 on 9 front and 10 rear wheels, it results in a slight stretch in the rear. In comparison to a 725/30R19 square set up (9F, 10R)

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**Author:** ![66impalass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/66impalass/32/7429_2.png) [@66impalass](https://forums.speedlife.net/u/66impalass)\
**Post date:** [March 29, 2008, 4:59pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/56 "2008-03-29T16:59:25Z")

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> [@sureshot007](#):
>
> More rubber = proven results.

No, it is that way to a point, but in the end having to much tire for a car will result in the car slowing down due to to much friction, in anything other than a straight line.

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<div class="post-metadata">

**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [March 29, 2008, 5:00pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/57 "2008-03-29T17:00:13Z")

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What?! Too much friction slowing the car down? Are you serious with this?

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**Author:** ![66impalass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/66impalass/32/7429_2.png) [@66impalass](https://forums.speedlife.net/u/66impalass)\
**Post date:** [March 29, 2008, 5:02pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/58 "2008-03-29T17:02:44Z")

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then maybe you shouldn’t post more rubber=better, adequate would be a better word to use.

[Dictionary.com](http://Dictionary.com) Unabridged (v 1.1) - Cite This Source - Share This  
ad·e·quate /ˈædɪkwɪt/ Pronunciation Key - Show Spelled Pronunciation[ad-i-kwit] Pronunciation Key - Show IPA Pronunciation  
–adjective

1. as much or as good as necessary for some requirement or purpose; fully sufficient, suitable, or fit (often fol. by to or for): This car is adequate to our needs. adequate food for fifty people.

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<div class="post-metadata">

**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [March 29, 2008, 5:12pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/59 "2008-03-29T17:12:32Z")

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I posted it because it’s true. I have never seen personally, or talked to anyone that has ever said “Oh man, I have too much tire and it’s slowing me down out there.” That, coupled with the physics of racing = no such thing as too much rubber.

Now if you want to talk about clearance issues and not being able to turn your wheels enough, or tires are too wide for the wheels (275s on a 6" wheel?), well then that’s a problem with car setup. Maybe you misunderstood what I meant, and you thought that I was saying you can’t put too much tire on a specific size wheel, in which case there is a point of diminishing returns. However, it’s not too much friction that causes the decline in performance.

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<div class="post-metadata">

**Author:** ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)\
**Post date:** [March 29, 2008, 5:16pm UTC](https://forums.speedlife.net/t/stretched-tires/45810/60 "2008-03-29T17:16:24Z")

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Meh, I’ve heard of people complaining that they can’t heat up a set of 225s enough and 205s are ADEQUATE.

We are talking about sub 1800 lb cars with 90 WHP. And talking about an “R” r-comp and not an “A” r-comp.

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