Increasing tyre size - Page 2





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  1. #21
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    Default Re: Increasing tyre size

    Quote Originally Posted by bobscratchit View Post
    Maybe a similar question which i am unsure of, can you help?

    I have a Fortuner with 265/75R16 tyres. I wish to change tyres, but my chosen tyre only comes in 265/75R17.

    Does this small change mean i need to change the wheels?

    thanks for your help in this hour of ignorance
    Yes.
    You need to buy 17" rims.

  2. #22
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    Default Re: Increasing tyre size

    Quote Originally Posted by jelo View Post
    all 5 in fact, depending on how the vehicle traction control and ESC and ABS handles varying wheel sizes

    It's stupid to have different rim sizes on a vehicle.
    Was TIC. But ok.
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  3. #23
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    Default Re: Increasing tyre size

    Quote Originally Posted by douglash View Post
    Was TIC. But ok.
    smiley face, dude, use the smiley face
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  4. #24
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    Default Re: Increasing tyre size

    I have a Fortuner with 265/75R16 tyres. I wish to change tyres, but my chosen tyre only comes in 265/75R17.

    Robbie
    Fortuner D4D
    Hilux 2.7 4x4 Raider.

  5. #25
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    Default Re: Increasing tyre size

    Quote Originally Posted by Gajac View Post
    Don't believe you will get the 265/75/17 to fit inside the arch when is comes to turning
    Took a photo because i forget quickly and yes its 17 (please don't ask for the pic, am technology incompetent)

  6. #26
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    Default Re: Increasing tyre size

    Quote Originally Posted by Robbief View Post
    I have a Fortuner with 265/75R16 tyres. I wish to change tyres, but my chosen tyre only comes in 265/75R17.

    Goodyear duratrac?

  7. #27
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    Default Re: Increasing tyre size

    Damn I hate this size format they use now, what is wrong with the plain old simple size format of 33"x12.5"x15?
    David/Hillbilly - 1997 SFA Nissan Sani 2,7 TD - 5" lift on 33" tires - Dual Transfer with 4.1 gears

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  8. #28
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    Default Re: Increasing tyre size

    Thank you all for positive response. Will stick to 16 .

  9. #29
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    Default Re: Increasing tyre size

    Quote Originally Posted by bobscratchit View Post
    Maybe a similar question which i am unsure of, can you help?

    I have a Fortuner with 265/75R16 tyres. I wish to change tyres, but my chosen tyre only comes in 265/75R17.

    Does this small change mean i need to change the wheels?

    thanks for your help in this hour of ignorance
    I presume you understand but just making sure: 265/75R17 is larger in Outside/rolling diameter than 265/75R16.
    This is because the side-wall is the same height. This is why you would need to change all 5, not just 4, and why somebody mentioned that they may not fit in the arches.
    1996 Patrol 4.2SGL with lots of stuff to make it heavier and thus increase traction?

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  11. #30
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    Default Re: Increasing tyre size




    Although I think his conclusion is biased towards lift.
    I think the winner was clearly the middle one.
    Last edited by jfh; 2020/03/21 at 07:23 AM.
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  12. #31
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    Default Re: Increasing tyre size

    Attached is an image of a graph of my fuel consumption for the last 2 years.
    During that period I went from 265/60x18 to 265/75x16 wheels, an increase is circumference of about 5%. The change was also from HT to AT, which should increase fuel consumption.

    I dare you guys to look at the graph and tell me where the change happened.

    PS: I have corrected the distance traveled for the bigger wheels.
    Attached Images Attached Images  

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  14. #32
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    Default Re: Increasing tyre size

    Quote Originally Posted by RoelfleRoux View Post
    I dare you guys to look at the graph and tell me where the change happened.
    .
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  15. #33
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    Default Re: Increasing tyre size

    44/45

  16. #34
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    Default Re: Increasing tyre size

    Yes gents....
    The last 8 full-ups were on the bigger wheels.
    I don't see it in the data, you are obviously more clever than I am.
    If you look at the data, the obvious low consumption dips are all on open road trips, and mostly to Jhb. The last one being with the bigger wheels, and not much different from the others. Feb and Mar were out of the ordinary and shouldn't really be compared to the rest. Feb was my last month of employment and my replacement was already on site from early Jan. So Feb saw many low-range trips into the mountains with people who wanted to have a final experience in the mountain with me, before I hung up my geo-hammer. Mar had me pulling my offroad caravan into same mountains for a weekend trip with a group of 4x4 enthusiasts.
    I think the graph also shows that fuel consumption is dependent on many factors and really difficult to quantify and compare with a high degree of certainty and confidence.
    Last edited by RoelfleRoux; 2020/05/20 at 06:50 AM.

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