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Widest Tires Possible?

This is a discussion on Widest Tires Possible? within the Wheels and Tires forums, part of the General Help category; So it is time for new tires on my 1998 T/A I have 275/40/17 on my stock set of WS6 ...

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    Junior Member supercharged666's Avatar
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    Widest Tires Possible?

    So it is time for new tires on my 1998 T/A I have 275/40/17 on my stock set of WS6 5 spoke rims. Does anyone know what the widest tire I can put on the 17 rims without having any clearance issues. I know they make a 285/40/17 and a 315/35/17 they will fit the rim but i'm not sure of any rubbing issues. Does anyone have anything wider than a 275/40/17 on the rear of there T/A?

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    Paid 2 Post Daycrew SexOnWheels's Avatar
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    I have 315/35-17 on a 11" rims.

    The largest tires that the manufacturer allows for your rims is 275/40-17.

    Here is a picture of 315/35-17 om all four corners:




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    Junior Member blackwidow99's Avatar
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    Kumho Ecsta 275's

    DS-G3 315's


    I have a write up on making the 315's fit on ls1tech but here's the cliff's notes:
    -Moderate hammering of wheelwell
    -Shaved bumpstop with 5" Angle Grinder
    -Used rubberized undercoating

    Some ppl have no rubbing issues but I did this as a safety precation to keep them from rubbing on highspeed turns. I also recommend an adjustable panhard bar. If you are lowered, expect more issues.

    Edit: For the 315's I would recommend at least an 11" wide wheel. Some would go smaller but I personally don't recommend it.
    Last edited by blackwidow99; 06-21-2007 at 08:54 AM.

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    no more 4th gen secondgearscratch's Avatar
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    my friend had 325/35/17s on the rear of his z. no problems so far. they are pretty friggin wide though as they are the e.t. streets.

    good luck. and nice car SOW!

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    Paid 2 Post Daycrew SexOnWheels's Avatar
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    Quote Originally Posted by blackwidow99 View Post
    Kumho Ecsta 275's
    Click for full size
    DS-G3 315's
    Click for full size

    I have a write up on making the 315's fit on ls1tech but here's the cliff's notes:
    -Moderate hammering of wheelwell
    -Shaved bumpstop with 5" Angle Grinder
    -Used rubberized undercoating

    Some ppl have no rubbing issues but I did this as a safety precation to keep them from rubbing on highspeed turns. I also recommend an adjustable panhard bar. If you are lowered, expect more issues.

    Edit: For the 315's I would recommend at least an 11" wide wheel. Some would go smaller but I personally don't recommend it.
    You should repost your write-up here as this question is asked (almost) daily. You need to (or not need to) hammer based on what kind of tires you have on the rim. Some are far 'thinner' than others.

    Quote Originally Posted by secondgearscratch View Post
    my friend had 325/35/17s on the rear of his z. no problems so far. they are pretty friggin wide though as they are the e.t. streets.

    good luck. and nice car SOW!
    Thanks bro, I have been pushing it hard on the track this year.

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    Junior Member blackwidow99's Avatar
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    Quote Originally Posted by SexOnWheels View Post
    You should repost your write-up here as this question is asked (almost) daily. You need to (or not need to) hammer based on what kind of tires you have on the rim. Some are far 'thinner' than others.
    Will do. And you are correct that some don't require hammering, but I recommend everyone do so anyways as it takes only a few minutes and can ultimately prevent tire damage.

    There is no way to tell if you may have issues under full load or on highspeed cornering.

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    Junior Member supercharged666's Avatar
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    How much metal did you take off of the bump stop. I saw your picture and it looks like you can only take off just alittle before you hit the rubber?

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    Junior Member blackwidow99's Avatar
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    Quote Originally Posted by supercharged666 View Post
    How much metal did you take off of the bump stop. I saw your picture and it looks like you can only take off just alittle before you hit the rubber?
    I shaved off about a 1/4" of metal and I also shaved the rubber to make it sit flush with the metal. Don't leave any sharp edges.

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    Paid 2 Post Daycrew SexOnWheels's Avatar
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    I did that too. ^^

    But know I run different tire which sit at 12.75" on the rim and actually had to trim off more.

    You want to shave off enough so that the rims/tires clear when the rear end is in full droop.

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    Member Stricken1's Avatar
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    I have 315/35 17 Nitto DR with no problems at all..the tire has a slight roll over but other than that they work great. If you go BFG DR's they will rub the inner fender well.

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    Junior Member blackwidow99's Avatar
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    Quote Originally Posted by Stricken1 View Post
    I have 315/35 17 Nitto DR with no problems at all..the tire has a slight roll over but other than that they work great. If you go BFG DR's they will rub the inner fender well.

    Many factors determine whether rubbing will occur including stock vs aftermarket springs/shocks, total load upon suspension, driving/road conditions, and speed among other things.

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    Senior Member 440 rwhp trans am's Avatar
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    Quote Originally Posted by Stricken1 View Post
    I have 315/35 17 Nitto DR with no problems at all..the tire has a slight roll over but other than that they work great. If you go BFG DR's they will rub the inner fender well.
    my bfg's rub and its annoying im going with nitto's next time

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    Junior Member supercharged666's Avatar
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    Hey blackwidow99 what size tires you got on the front of your camaro?

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    Junior Member blackwidow99's Avatar
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    Quote Originally Posted by supercharged666 View Post
    Hey blackwidow99 what size tires you got on the front of your camaro?
    275's on a 9.5"X17" ZR-1

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    Junior Member supercharged666's Avatar
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    Has anyone ran Sumitomo HTR Z tires on there car? The Tirerack.com has 315/35/17 on sale for $96.00. Thats super cheap. Just woundering if they are a decent tire for the money or if they are total garbage?

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    Junior Member brettmech's Avatar
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    Hey Supercharged666 I just bought sumitimo 275's and absolutely love them. I hear they wear fast but for dry traction they are the best bang for your buck. I has Nitto 555's on before and think these HTRz's are twice the tire for traction. Don't think you are getting a cheap tire at all

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    i got Sumitomo HTR Z a few weeks ago on my gto they seem to be good tires good traction dont knwo about wear yet but i like them so far

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    Junior Member brettmech's Avatar
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    Just went to the trasck today and turned in a best 1.92 60 foot with my sumitimo's compared to the best 2.2 with my 555 nitto's Really great tires I can't say enough for the price
    1998 Z-28 LT Headers & Cat Delete Off Road Pipe, 160 t-stat, Hypertech, all the free mods, Sumitimo HTRz11 tires, B&M Ripper, 150 shot of the funny stuff, Spec 3 clutch, 3.73 gear, SS Hood.
    Best E.T. W/O N2o 12.9

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    Junior Member supercharged666's Avatar
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    Alright i'm sold, I just order the HTR tires from the Tirerack.com i got 275 for the front and 315 for the rear. I plan on doing the rear wheel base mod for clearances issues. I know that some people said that they had no problems with there tires but i'm gunna go ahead and do it anyway.

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