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Thread: Making it Fit: Our guide to calculating all things wheel, tire, and offset.

  1. #1

    Default Making it Fit: Our guide to calculating all things wheel, tire, and offset.

    Thought I would throw up a few links that I routinely use for wheel and tire calculations.

    Simple Wheel Offset Calculator

    Tire Size Calculator

    Wheel and Tire Calculator

    BBS Thread for n00bs

    Tire Stretch Gallery

    Tire Stretch Utility, opens in Excel

    Handy little chart for measuring wheel ET and backspacing:


    That is all I have off of the top of my head. I know a few more, but those will get everybody started. If you need something specifically that I didn't post, then let me know.

    -Chad
    Last edited by M.Burroughs; 10-10-2009 at 11:34 AM.
    I like to modify things.
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    -Chad

  2. #2

    Default

    Solid post, very helpful. Good work!
    Quote Originally Posted by da3bous View Post
    I want you to photoshop a giant penis down the side of my car

  3. #3

    Default

    Nice, I've only seen a couple of these links before. Thanks dude!

    1997 BMW 328is Alpine White // Dove Grey
    ZF Swapped | 3.23 LSD | FK Coilovers | 17x8.5 Borbet Type C | 75mm Wheel Studs | 12mm Vorshlag Spacers | 5000k HIDs | Euro Taillights | Suede Headliner/Pillars

  4. #4

    Default

    nicely done!

  5. #5
    Join Date
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    Default

    very good stuff. Sticky this?
    -Nick

  6. #6
    Join Date
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    Default

    Quote Originally Posted by BeemerBuyer View Post
    very good stuff. Sticky this?
    Yup. done.

  7. #7

    Default

    The one that opens in excel is what I use, good stuff.

  8. #8
    Join Date
    May 2009
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    Seattle
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    Default

    Is it just me or is the stretch calculator a little off?

    My buddy has 205/45s on a 16x8 that stretch nicely, the calculator reads that as square

  9. #9
    Join Date
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    Default

    lol, my 205/40's on an 8 were damn near square. 205mm = 8.07 inches

    I was running Fuzions which are notoriously narrow as well

  10. #10
    Join Date
    May 2009
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    Default

    weird.. oh well

  11. #11

    Default

    Quote Originally Posted by Stephen View Post
    My buddy has 205/45s on a 16x8 that stretch nicely, the calculator reads that as square
    I had 205/40s on the fronts of the 8" WRDs, they didn't have very much stretch at all to them. It is also dependent on what particular tire you are running, as Sean mentioned.
    I like to modify things.
    flickr
    Inyo Photo
    -Chad

  12. #12
    Join Date
    Nov 2009
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    DFW ..Dirty South TX
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    Default

    more usefull links

  13. #13

    Default

    Great thread!

  14. #14

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    im lost, sorry for being a dumbass, but i wanna run 17's on my grl 2010 yaris sedan, what should i be looking for to get a nice stance. Plez help

  15. #15
    Join Date
    Nov 2009
    Location
    Austin/Dallas
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    Default

    wow very helpful. this makes it easier to visualize.

  16. #16

    Default

    This forum is amazing, sooo helpful. I wish i registered a month ago though haha this is awesome thank you chad
    Last edited by EFFDBMX3; 01-06-2010 at 04:07 PM.

  17. #17

    Default

    This thread is a great tool

  18. #18

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    anyone try to translate: 'Tire Stretch Utility, opens in Excel' yet?

    anyone know what language it is? perthaps I can find somenoe to translate it for me and we can rehost it here in english?

  19. #19
    Join Date
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    San Diego (By Churchs Chicken), CA - WFC #858
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    Default

    damn this thread delivers, subscribed/bookmarked !!!

  20. Default

    Last edited by rimtuck; 08-18-2010 at 12:02 PM.

  21. #21

    Default

    Thought this might help some people

    http://www.jonathanrowny.com/page/offset-calculator
    Brilliant Black S4 Avant
    ** Frankenturbo|034|SSAC|Podi|RingerRacing|Accuair|Rotiform **
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  22. #22

    Default

    very helpful thanks

  23. #23

    Default

    Awesome links, thanks for sharing!

    If you have to ask people on an internet forum what you should do to your car, you should just leave it alone.

  24. #24

    Default

    Stretch calculator link appears to be broken.

  25. #25
    Join Date
    Nov 2009
    Location
    Renton, WA
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    561

    Default

    Here's how to properly measure the offset of your wheels if you have unknown offsets or want to double-check:


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