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Thread: Sumitomo

  1. #1

    Sumitomo

    235/40ZR18
    Load Index 95 = 1521lbs (690kg) per tire
    Speed Rating “Y” = 186mph (300kph) 95Y
    XL

    255/45ZR18
    Load Index 103 = 1929lbs (875kg) per tire
    Speed Rating “Y” = 186mph (300kph) 103Y
    XL

    Fronts 25.3" in Diametre

    Rears 27.0" in Diametre

    Sumitomo HTR Z III



    Would these maintain the ratio front to back and fit our Marauders?

  2. #2
    Join Date
    Dec 2002
    Location
    Ft. Lauderdale, Florida
    Age
    65
    Posts
    515

    way too small

    the tires you are talking about are too small
    Height wise
    I have 285/50's and they are much taller than what you are touting..

    I think there would be too much wheel well showing

    although the ratio may be right for the ABS
    Sold on 1/16/2012
    MM 2003 300A
    Reinhart Air-to-Air Vortech Supercharger #8, Art Carr Transmission, PI 3000 stall TC Triple disc, 4:10, TA Girdle and studs, Dynotech Driveshaft
    DR Xcal2 tune, Motorcraft AGSF22C Plugs(Autolite 103) Trying some NGK Iridium, New ACCEL COP's, Rear engine cooling mod
    180 deg. Thermostat, KOOKs headers, Magnaflow high flow cats (NO CATS), Magnaflow Mufflers (with stuffing blown out)
    Addco front & rear sway bars, Metco drive shaft loop, Metco control arms, ProGuard Skid plate
    Widened rims by Weldcraft w/Nitto 235/45 & 285/50, DynoPros Aluminium Door Sills


    http://www.mercurymarauder.net/forum...do=view&id=474

  3. #3
    Join Date
    Aug 2007
    Location
    So California
    Age
    45
    Posts
    352
    They will maintain the ratio that is needed but your speedo will be a little off. If you have a tuner you can fix that. And it will lower your gear ratio a little too. I have been running 235/45/18 up front and 245/50/18 in the rear for years now with no issues(Kuhmos) One other thing you might want to take in to consideration is the gap between tires and fenders might look alittle to large.

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