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Yet another tire thread...

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  • #1

    Yet another tire thread...

    Would I be a complete retard to use 195/60/R14's (Azenis RT-615) for autocross?

    I have a bunch of 14"x6" VW wheels laying around, and being a Turd owner (read: cheap-ass), I'd rather use those than buy new wheels. So, I'm trying to weigh the pros and cons of that setup versus using, say Saturn "Sawtooth" wheels with 205/50/R15's:

    Pros:

    1. Cheaper (I already own the wheels, and the tires are $11 cheaper than the 15" size)

    2. Lower inertia = faster accelration

    The OD is the same for both tires (23.2")
    The weight will be roughly the same for each combination
    VW rim @ 16.5 lbs + 14" tire @ 18.7 lbs = 35.2 lbs
    Turd rim @ 14.5 lbs + 15" tire @ 20.8 lbs = 35.3 lbs

    3. Cheaper

    Cons:

    1. Lower effective spring rate due to increased sidewall (made even worse by my limp-ass springs)

    2. One inch less tread width (6.6" vs. 7.6")

    3. I'll get laughed at in the locker room for having smaller rims, and the V-dubbers will lynch me for using GTI rims on a Turd.
    Tags: None
  • #2
    Assuming they'll clear the brakes and everything and have a good offset so there's no rubbing issues, I'd say go with the smaller rims and run really small rubber to boot. Something like a 215/45/14. Gearing would rock for acceleration and the sidewall would be nice and short (read stiff). Then again, I am one sick hombre.
    [16:02] Ferrari166mm: so you&#39;re finally getting into real cars.<br />[16:02] adamkob32: I&#39;ve just had enough of racing a 100HP nutsack
    <br /><br />

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    • #3
      Well, depending on what class he is in, there is limitations on what size tire/wheel combo you can run.
      1993 SW2 - Slow and Low

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      • #4
        Originally posted by DasPirate
        Assuming they'll clear the brakes and everything and have a good offset so there's no rubbing issues, I'd say go with the smaller rims and run really small rubber to boot. Something like a 215/45/14. Gearing would rock for acceleration and the sidewall would be nice and short (read stiff). Then again, I am one sick hombre.
        That's exactly what I was thinking. Unfortunately though, I can't find any STS legal (>140 treadwear) tires in that kind of size. [img]{SMILIES_PATH}/icon_mad.gif[/img]

        Originally posted by Plastic Fury
        Well, depending on what class he is in, there is limitations on what size tire/wheel combo you can run.
        Yeah, that.

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        • #5
          I wouldn't even bother trying STS with tires that small. They're not even close to legal. But that's what street mod is for.
          [16:02] Ferrari166mm: so you&#39;re finally getting into real cars.<br />[16:02] adamkob32: I&#39;ve just had enough of racing a 100HP nutsack
          <br /><br />

          Comment

          • #6
            Originally posted by DasPirate
            I wouldn't even bother trying STS with tires that small.
            Which tires? The ones you suggested?

            Originally posted by DasPirate
            They're not even close to legal.
            The only requirements for tires in STS are:

            1. Maximum width of 225.
            2. Minimum treadwear of 140.

            Originally posted by DasPirate
            But that's what street mod is for.
            [img]{SMILIES_PATH}/lol.gif[/img] I think a Saturn would get laughed out of Street Mod. I may (some day) prepare my Jetta for SM because there are so many easy options for engine swaps. Plus, there's a plethora of suspension options, which Turds just don't have.

            Anyway, back to my original question...

            Would it be stupid to even try running 195/60/R14's for STS?

            Comment

            • #7
              Originally posted by DTDSasquatch
              The only requirements for tires in STS are:

              1. Maximum width of 225.
              2. Minimum treadwear of 140.

              Originally posted by DasPirate
              But that's what street mod is for.
              [img]{SMILIES_PATH}/lol.gif[/img] I think a Saturn would get laughed out of Street Mod. I may (some day) prepare my Jetta for SM because there are so many easy options for engine swaps. Plus, there's a plethora of suspension options, which Turds just don't have.

              Anyway, back to my original question...

              Would it be stupid to even try running 195/60/R14's for STS?
              I havn't read the rules in some time, but I recall seeing something about the overall tire diameter needing to be within 1/2" of the stock package.

              Furthermore, whether or not you'd be competitive in street mod is besides the point. If you're looking to be competitive in your class, you wouldn't run in SM, and if you were in STS, you wouldn't run such heavy wheels.
              [16:02] Ferrari166mm: so you&#39;re finally getting into real cars.<br />[16:02] adamkob32: I&#39;ve just had enough of racing a 100HP nutsack
              <br /><br />

              Comment

              • #8
                Originally posted by DasPirate
                I havn't read the rules in some time, but I recall seeing something about the overall tire diameter needing to be within 1/2" of the stock package.
                In that case anyone with 205/50s is in trouble.
                ilostmysocketwrench | Bentra Motorsports Blog | Bentra Motorsports Videos

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                • #9
                  go SM. its pretty much a catchall class... you can mod pretty extensively AND you get to use sticky rubber.


                  Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut. -Ernest Hemingway

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                  • #10
                    And it will absolutley kill your wallet to be comptetive.
                    ilostmysocketwrench | Bentra Motorsports Blog | Bentra Motorsports Videos

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                    • #11
                      Originally posted by ProDarwin
                      Originally posted by DasPirate
                      I havn't read the rules in some time, but I recall seeing something about the overall tire diameter needing to be within 1/2" of the stock package.
                      In that case anyone with 205/50s is in trouble.
                      last time i checked i beleive they are approximately 1" smaller in diameter
                      [color=red]-Tyler[/color]<br /><br />2005 Chevy Trailblazer<br />1999 Saturn SL2<br />2002 Suzuki Bandit 1200

                      Comment

                      • #12
                        Originally posted by sl2fast
                        Originally posted by ProDarwin
                        Originally posted by DasPirate
                        I havn't read the rules in some time, but I recall seeing something about the overall tire diameter needing to be within 1/2" of the stock package.
                        In that case anyone with 205/50s is in trouble.
                        last time i checked i beleive they are approximately 1" smaller in diameter
                        My ES100s are 205/50s and are nowhere near an inch smaller than the 195/60 allseasons I run in the winter.
                        [16:02] Ferrari166mm: so you&#39;re finally getting into real cars.<br />[16:02] adamkob32: I&#39;ve just had enough of racing a 100HP nutsack
                        <br /><br />

                        Comment

                        • #13
                          Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
                          195/60-15 4.6in 12.1in 24.2in 76.1in 833 0.0%
                          205/50-15 4.0in 11.5in 23.1in 72.5in 874 -4.7%

                          Looks like more than an inch to me.
                          ilostmysocketwrench | Bentra Motorsports Blog | Bentra Motorsports Videos

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