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  • tire size on 18

    I will be purchasing tires for my 18x8.5 inch wheels soon and would like to know what size i could use. 245/40/18 seem to be the most common route, but i was thinking about something a little wider that would retain the stock speedometer readings. any help would be much appreciated.
    Positive Force For Life<br /><a href=\"http://www.positiveforce-cc.com\" target=\"_blank\">www.positiveforce-cc.com</a>

  • #2
    I run the 245/40's. Tread width is 9" if I remember right. You can go with a 275/35 or a 285/35, and be around a 10-10.5" tread width. You can look up some performance tires on tirerack and get an idea on the dimensions for these sizes.

    Either of these tires is just a slightly smaller diameter than stock (around 25.7 vs 26.0), so with either one the speedometer will read about 1mph fast around 80mph...
    \'98 A4 Camaro v6-&gt;v8 conversion, and STS kit next<br />v6: 13.6 Powerdyne, 13.2 150 shot, 13.8 120 shot, 14.3 85 shot, 15.7 stock<br />v8(na): 12.18@113, 392rwhp<br />Moderator on <a href=\"http://www.mtfba.org\" target=\"_blank\">www.mtfba.org</a> and <a href=\"http://www.frrax.com\" target=\"_blank\">www.frrax.com</a> (Road Race & Autocross)<br /><a href=\"http://community.webshots.com/user/johnduncan10\" target=\"_blank\">Car pics</a>, <a href=\"http://www.trscca.com\" target=\"_blank\">TN Region SCCA</a>

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    • #3
      275/35 will work fine ;)
      www.turbov6camaro.com
      1997 3800 Series II Camaro
      4600 Stall for my ride to the mall :chug:
      7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
      11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

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      • #4
        Are there any specific brands of tire or models that you guys prefer and have experience with? I think i will go with 245's on the front and 275's in the rear.
        Positive Force For Life<br /><a href=\"http://www.positiveforce-cc.com\" target=\"_blank\">www.positiveforce-cc.com</a>

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        • #5
          the good year Eagle F1 GS-D3 ARE REALLY GOOD (i have read every review on them and many poeple like them.

          so good there on freaking backorder till............ only good year knows when they will have them

          :mad:
          www.turbov6camaro.com
          1997 3800 Series II Camaro
          4600 Stall for my ride to the mall :chug:
          7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
          11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

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          • #6
            A buddy of mine has a set of Kumho ECSTA 712 on his Mustang and he loves them. Anyone have any experience with these?
            Positive Force For Life<br /><a href=\"http://www.positiveforce-cc.com\" target=\"_blank\">www.positiveforce-cc.com</a>

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            • #7
              The 712 series tire is a good tire. BUT I have ordered the new Kumho ASX tires for my car because they have a more weather-friendly tread design if you use your car as a daily driver like mine. Instead of having a single rain channel the ASX tire has a dual channel design to move more water for better driving in the rain and it still is an ultra-high performance tire. You may want to check those out. They are brand new so nobody really has any test results on them.
              Mustangs.. Come to the darkside...<br /><br />The dark side is the path to the shadow of greed. =D

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              • #8
                Do 275 Stick out of the car, becasue I have 245 on my stock rims and tire sticks out of the car about 1/2 inch
                -Paul-<br /><br />03 Lancer Evolution VIII<br /><br />1998 Camaro M5 - Traded

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                • #9
                  I dont have them on the car yet because it is being painted this week. i will get some pics as soon as i get the car back.
                  Positive Force For Life<br /><a href=\"http://www.positiveforce-cc.com\" target=\"_blank\">www.positiveforce-cc.com</a>

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