Wheel question

Discussion in 'Other Auto Tech' started by 300, Feb 26, 2009.


  1. 300

    300 New Member

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    New guy here.

    Question: When changing to a larger circumference tire, will acceleration and/or top speed change? :shrug:

    Why would people change to larger tires if its going to slow them down?

    Thanks for any explanations or opinions on the matter.
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  2. LILCBRA

    LILCBRA Member

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    As far as being quicker or slower off the line, a smaller diameter tire will be quicker. I would assume, but have never tested myself, that the larger diameter tire will increase your top speed. One reason to change to a larger diameter tire, and probably a good argument right now, is for fuel mileage. The larger diameter the tire, the less revolutions per mile it will make. I guess it will depend on how much larger you go over stock as to what kind of gains you will see. Hope this helps you out!!
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  3. 300

    300 New Member

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    Thanks. :nice:

    A popular tire chain told me different. My instructor (im a p/t auto tech student)

    agrees with you. I just wanted a second opinion and more if anyone has one.
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  4. parrish5o

    parrish5o New Member

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    Using a taller tire is like installing higher gears and vice versa. A taller tire=less take off and more top end, shorter tire=quicker take off and less top end, more rpm.
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  5. 300

    300 New Member

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    I know I'm wrong and I accept that, but my thinking goes like this:

    3 : 1 first gear and 3 : 1 gears. Overall ratio is 9 : 1. A taller tire would cover

    more distance per revolution.

    Like I said I'm wrong, I just don't understand why. :shrug:
    #5

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