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  1. Join Date
    Apr 2014
    Posts
    231
    #1
    Will I take a hit it fuel economy if I upgrade my stock 14" rims to aftermarket 15" or stock altis 15" rims ???

    How much percentage of fuel economy will be decreasing ??

    My car is Corolla GLi 96 ..

  2. Join Date
    Jul 2015
    Posts
    9,584
    #2
    Theyre are 3 factors to consider, weight of the tires and wheels(rotating mass), rolling resistance of the tires...check out bridgestone ecopia...,lastly width of the wheel itself, this has to do with wind resistance, for me, its not a big deal if youre not driving too fast,

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    Theyre are 3 factors to consider, weight of the tires and wheels(rotating mass), rolling resistance of the tires...check out bridgestone ecopia...,lastly width of the wheel itself, this has to do with wind resistance, for me, its not a big deal if youre not driving too fast,

  3. Join Date
    Mar 2014
    Posts
    5,975
    #3
    Just go with the plus sizing of tires when increasing rim diameter. Toyo web site has a good guide on how to plus size. 175/70R14 to 185/60R15 for example. Your tires will be a bit wider but lower profiled. I think it will affect your economy by just a bit.

  4. Join Date
    Oct 2002
    Posts
    15,528
    #4
    Quote Originally Posted by Dezaremos View Post
    Will I take a hit it fuel economy if I upgrade my stock 14" rims to aftermarket 15" or stock altis 15" rims ???

    How much percentage of fuel economy will be decreasing ??

    My car is Corolla GLi 96 ..
    i dont think no.......
    however, still use the recommended size.
    for 14, the stock should be 175 or 185/60/14
    for 15, it should be 195/55/15. if you go thicker, lets say 195/60 or 195/65, may minimal effect na yan.

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    Quote Originally Posted by Dezaremos View Post
    Will I take a hit it fuel economy if I upgrade my stock 14" rims to aftermarket 15" or stock altis 15" rims ???

    How much percentage of fuel economy will be decreasing ??

    My car is Corolla GLi 96 ..
    i dont think no.......
    however, still use the recommended size.
    for 14, the stock should be 175 or 185/60/14
    for 15, it should be 195/55/15. if you go thicker, lets say 195/60 or 195/65, may minimal effect na yan.

  5. Join Date
    Oct 2002
    Posts
    15,528
    #5
    i dont think that there would be an effect on the FC.
    just follow the recommended tire diameter/size.

    for 14's. the standard size is 175/60/14 for sedans, 185/65/14 for AUVs.
    for 15's, it should be 195/55/15 for sedans, 195/60/15 for AUVs. if you go higher lets say 195/60/15 for sedans or 195/65/15 for AUVs, may effect na yan.

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    i dont think that there would be an effect on the FC.
    just follow the recommended tire diameter/size.

    for 14's. the standard size is 175/60/14 for sedans, 185/65/14 for AUVs.
    for 15's, it should be 195/55/15 for sedans, 195/60/15 for AUVs. if you go higher lets say 195/60/15 for sedans or 195/65/15 for AUVs, may effect na yan.

  6. Join Date
    Aug 2015
    Posts
    29
    #6
    Quote Originally Posted by Dezaremos View Post
    Will I take a hit it fuel economy if I upgrade my stock 14" rims to aftermarket 15" or stock altis 15" rims ???

    How much percentage of fuel economy will be decreasing ??

    My car is Corolla GLi 96 ..
    I think if there's a decrease, the difference is not significant.

    More of a concern I think is the new diameter (for accurate odometer reading and speed). There are online calculators to find out if the new size would be close or similar to stock. We use 195/60R15 for bigbody. Only concern is increased width (full turn of the steering puts the tire rubbing against the wheel well although angle reduction to avoid rubbing is very slight).

  7. Join Date
    Oct 2002
    Posts
    17,339
    #7
    Not really. In fact that's a nice upgrade. Go with 195/55R15.

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    Not really. In fact that's a nice upgrade. Go with 195/55R15.

  8. Join Date
    Jul 2015
    Posts
    9,584
    #8
    Just follow this formula just to be in the safe side, dont stray from the original OEM size


    (Tire Sidewall Height X 2) / 25.4 + Wheel Diameter (in.) = Overall diameter
    * / 25.4 is used to convert the measurement of the tire side wall from mm to inches

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    Just follow this formula just to be in the safe side, dont stray from the original OEM size


    (Tire Sidewall Height X 2) / 25.4 + Wheel Diameter (in.) = Overall diameter
    * / 25.4 is used to convert the measurement of the tire side wall from mm to inches

  9. Join Date
    Jun 2011
    Posts
    134
    #9
    Tire Size Overall Tire Diameter Tire Width
    185/65R14(stock) 23.5 inches 7.3 inches
    185/60R15 23.6 inches 7.3 inches
    195/55R15 23.4 inches 7.6 inches

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    Tire Size Overall Tire Diameter Tire Width
    185/65R14(stock) 23.5 inches 7.3 inches
    185/60R15 23.6 inches 7.3 inches
    195/55R15 23.4 inches 7.6 inches

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Upgrading from stock 14" rims to 15" rims ??