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2016 HSV Grange owners

Discussion in 'VF Holden Commodore (2013 - 2017)' started by ZeroLachie, Aug 28, 2019.

  1. ZeroLachie

    ZeroLachie New Member

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    Hi everyone,

    I need a bit of help. I want to put 20inch wheels on my 2016 WN series 2 Caprice. The problem is that I can't get tyres with the required load rating until I hit 265/xxR/20 which is too wide for the front.

    Turns out the HSV version, the Grange has gotten away with a lower tyre load rating by having a lower breaked towing rating.

    Qld transport has put me onto a gentleman who can do up the paperwork to re-rate my Caprice's GVM to that of the Grange.

    If anyone would be willing to send me a photo of their 2016 Grange's Build plate, compliance plate and tyre placard they are the last pice of the puzzle that I need to get the mod plate.

    Thanks!
     
  2. Voodoo_SV6

    Voodoo_SV6 Active Member

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    If you don't get a response here, maybe try hsvforum.com.au as there maybe a few owners on there.
     
  3. ZeroLachie

    ZeroLachie New Member

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    Thanks Voodoo I'll try there aswell.
     
  4. 07GTS

    07GTS Well-Known Member

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    should easly fit 275 on the front i would have thought, unless your wheels have an odd offset
     
  5. kleanphil

    kleanphil Active Member

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    I had a similar problem when I put staggered 20" on mine I couldn't find a set that had the right load ratings , I ended up with 255/35/20 Haida for the front and 275/35/20 Winrun for the rear , cheap tyres but I haven't had an issue with them and correct speed and load ratings .

    EDIT : I couldn't find the Haida when I needed a tyre for my spare so I ended up with Powertrac
     
    Last edited: Aug 28, 2019
  6. ZeroLachie

    ZeroLachie New Member

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    From all the research I have done I would have to go from a 245/40/19 tyre to a 265/35/20.
    Apparently with the extra width and overall diameter it would foul is situations like turning into an uphill driveway.

    Wheels I am planning on are Koya SF04 20x9 with 35 offset for the front and 20x10 with 42 offset for the rear.
     
    Geoff6666 likes this.
  7. lowandslow

    lowandslow Well-Known Member

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    Just buy a Grange tyre placard?
     
  8. panhead

    panhead Well-Known Member

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    What is the load rating, front and rear?





    .
     
  9. ZeroLachie

    ZeroLachie New Member

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    98W.
     
  10. panhead

    panhead Well-Known Member

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    I only looked at one tyre manufacture and found this, the other brands may have similar sizes.



    Bridgestone Potenza S007A

    245/40R20 99Y overall diameter 704mm

    285/35R20 101Y overall diameter 708mm


    The tyre diameter was calculated using Tempe Tyre's Tyre Calculator.

    How does the overall diameter compare to your existing setup?




    .
     
    Last edited: Aug 29, 2019
  11. ZeroLachie

    ZeroLachie New Member

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    Original diameter is 679mm according to QLD transport 'The overall diameter of any tyre fitted to a passenger car or passenger car derivative must not be more than 15mm larger or 26mm smaller than that of any tyre designated by the vehicle manufacturer for that model'.

    I'm really trying to stay within the ridiculous constraints set out in code of practice for all my mods so I'd be looking at something like a 245/35 or a 255/35 but this is where the load rating becomes an issue.

    The rear is fine its the front that is the problem.
     
  12. kleanphil

    kleanphil Active Member

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    The Powertrac are 102 w for 255 and 275 but they are cheap at Tyroola
     

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