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widest tire on a 17X9?

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Old Aug 8, 2004 | 05:01 PM
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Default widest tire on a 17X9?

What is the largest tire i can fit on my stock 17X9 wheels? pretty soon im going to buy a set of drag radials. it will be my daily driver im not sure what to go with: nitto's, bfg's, ET streets ?
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Old Aug 8, 2004 | 05:46 PM
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Originally Posted by 69_YENKO
What is the largest tire i can fit on my stock 17X9 wheels? pretty soon im going to buy a set of drag radials. it will be my daily driver im not sure what to go with: nitto's, bfg's, ET streets ?
You can do 315's... although its not recommended.

My set of 315s will be going on my 9.5 inch rim next week.. Nitto Drags....
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Old Aug 8, 2004 | 07:01 PM
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so like a 305 would be better for my 9's
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Old Aug 9, 2004 | 08:50 AM
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Hi there 69_YENKO, I have 285/40/17 Kuhmo Ecsta MXs and they fit just right. I wouldn't go beyond that. If you do, the side walls will be curved out further than the rim. Hope this helps.
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Old Aug 9, 2004 | 09:00 AM
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Originally Posted by 69_YENKO
so like a 305 would be better for my 9's
I don't think a 305 17" tire exists. I think a 285 is a big as you can safely go.
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Old Aug 9, 2004 | 11:33 AM
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285/40ZR17 absolute biggest per manufacturer recommendations . . .
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Old Aug 9, 2004 | 12:31 PM
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whats the biggest that is 'useable' on a 17x9.5.. 295's? or 315's?
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Old Aug 9, 2004 | 01:04 PM
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Originally Posted by Insomniak
whats the biggest that is 'useable' on a 17x9.5.. 295's? or 315's?
285/40ZR18.

295's require a 10" minimum
315's require a 11" minimum
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Old Aug 9, 2004 | 01:32 PM
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Originally Posted by Xsta Z 28
285/40ZR18.

295's require a 10" minimum
315's require a 11" minimum
that's not true because i have 295 bfg's on my car on a 9 inch rim and they work fine.
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Old Aug 9, 2004 | 05:50 PM
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Originally Posted by proauto
I don't think a 305 17" tire exists. I think a 285 is a big as you can safely go.
I didnt know what i was talking about, thats why i asked the question. so it sounds like a 285 is the manufactures recomindation---295s it is, thanks for all the information, very helpful....
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Old Aug 10, 2004 | 08:09 AM
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Originally Posted by Sik2000T/A
that's not true because i have 295 bfg's on my car on a 9 inch rim and they work fine.
Just because a tire shop recklessly "shoves" an innappropriate tire onto the wrong rim does not make it RIGHT or OK.

As I said before . . .

295's REQUIRE A 10" Wheel
315's REQUIRE A 11" Wheel

I don't give a damn what you can force to fit on the wheel, if a manufacturer says no, than no . . . . your car, your life . . .
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Old Aug 10, 2004 | 02:42 PM
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Originally Posted by Xsta Z 28
Just because a tire shop recklessly "shoves" an innappropriate tire onto the wrong rim does not make it RIGHT or OK.

As I said before . . .

295's REQUIRE A 10" Wheel
315's REQUIRE A 11" Wheel

I don't give a damn what you can force to fit on the wheel, if a manufacturer says no, than no . . . . your car, your life . . .
3 guys in the local car club have ran 315s on 9.5 inch rims, since they bought their cars. One has had it for 3 years, the other for 2.
My 315 nittos go on today. I will come back with pictures and such. They for one look will look mean as hell.

Unsafe? Sorry.. I don't plan on running my car through a road course or twisties anytime soon, where sidewall flex might cause a problem.
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Old Aug 10, 2004 | 03:57 PM
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Originally Posted by ThackerSS
Unsafe? Sorry.. I don't plan on running my car through a road course or twisties anytime soon, where sidewall flex might cause a problem.
thats what i was thinking also.
i will probibly go with some 295s as i have heard that 315 bulg out in a 9" wheel. lets see some pics of your setup so i can make up my mind.

I appreciate everyone input, but i wasnt tryin to start a debate.
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Old Aug 10, 2004 | 04:02 PM
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Originally Posted by 69_YENKO
thats what i was thinking also.
i will probibly go with some 295s as i have heard that 315 bulg out in a 9" wheel. lets see some pics of your setup so i can make up my mind.

I appreciate everyone input, but i wasnt tryin to start a debate.
I thought my nittos were going to show up in time for me to get them mounted today... they might not. If so I will have the mounted tomorrow for sure and get pictures for you.

the 03-04 Cobra guys run 315's ALL THE TIME on their 17x9 wheels... without problems. I've yet to hear a horror story from a 315 messing up because it was mounted on a 9..... 9.5 inch rim.. so if anyone here has.. please share them.

I doubt we'll have many stories show up though
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Old Aug 10, 2004 | 04:19 PM
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Originally Posted by ThackerSS
I thought my nittos were going to show up in time for me to get them mounted today... they might not. If so I will have the mounted tomorrow for sure and get pictures for you.

the 03-04 Cobra guys run 315's ALL THE TIME on their 17x9 wheels... without problems. I've yet to hear a horror story from a 315 messing up because it was mounted on a 9..... 9.5 inch rim.. so if anyone here has.. please share them.

I doubt we'll have many stories show up though
where did you order your tires from? I need some pretty soon, the ones i have are almost all gone, and i am getting stall, headers, true duals and a tune at the end of the month.
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Old Aug 11, 2004 | 02:45 AM
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Originally Posted by 69_YENKO
where did you order your tires from? I need some pretty soon, the ones i have are almost all gone, and i am getting stall, headers, true duals and a tune at the end of the month.
I ordered mine from Discount tire direct.. I think they are a sponsor here? If not feel free to delete that link mods.

Here is a picture of the new 315's vs the old 275's.. I drove these until they about fell off.. 17 track pass's... 10k daily driven miles, and about 20 other roast fests = the end of a nitto.

The new ones go on tomorrow.. should look phat.

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Old Aug 11, 2004 | 07:22 AM
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Man you wernt kidding about driving those 275s untill they fell off, there bald as ****
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Old Aug 11, 2004 | 08:06 AM
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Originally Posted by ThackerSS
3 guys in the local car club have ran 315s on 9.5 inch rims, since they bought their cars. One has had it for 3 years, the other for 2.
My 315 nittos go on today. I will come back with pictures and such. They for one look will look mean as hell.

Unsafe? Sorry.. I don't plan on running my car through a road course or twisties anytime soon, where sidewall flex might cause a problem.
Number one this thread asks for 9" wheel.

And again . . .

Just because a tire shop recklessly "shoves" an innappropriate tire onto the wrong rim does not make it RIGHT or OK.

As I said before . . .

295's REQUIRE A 10" Wheel
315's REQUIRE A 11" Wheel

I don't give a damn what you can force to fit on the wheel, if a manufacturer says no, than no . . . . your car, your life . . . and actually other's lives since I assume you do dirive your cars on the road.

You all have your "opinions" about what is right, and what is acceptable to you, but these are TIRES, the only four things that keep your car shiney side up on the road, one of these days one of you will have something happen to your oversized tires on undersized wheels . . . . Heres an idea, you all spent about $25,000 to $30,000 on you car, so if you had that money in your pocket would you follow bank recommendations or, are you going ask the drug dealer on the street corner where to put $30,000 away safely?
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Old Aug 11, 2004 | 08:51 AM
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A tire that is too wide for the rim will be pinched. This will bow the tread face outward in the center. This will cause the tire to wear excessively in the center. If you lower the pressure enough to get the whole treadface working properly, you risk the tire being low enough to let the car sway (like driving on a flat). Drag racing may be slightly more tolerant of this. When you put oversized tires on an undersized rim and autocross or road race, you can't get the tire working properly. Use enough air to make the tire responsive, you wear out the centers and the edges are not working much if at all. If you lower the air pressure enough to get the tread flat on the ground, then you lose almost all of the "response" of that tire. Now, granted, autocross/road race applications are a little more picky about tires and how they work than your basic drag racer (your tires only have to work in one direction), but it is no less important. You will probably find that you go as fast on a proper 285 or even a 275 that runs the right pressure and puts the tread on the ground properly as you may go on a 295 or a 315. The other thing, the larger the tire, the heavier it is. Rotating weight is "king" for et/mph. This is why guys run slicks and skinnies. the small front tires reduce rotating weight and improve ET's. So, you may go faster with less tire because of a weight reduction and getting the tread to work properly.

Xsta Z 28 is not crazy and he really is trying to help you guys. But, if you want to ask questions and then ignore the answers that are based on manufacturers recommendations (they only build the tires, I'd not expect them to know anything about them), then why do you ask?

Be safe!
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Old Aug 11, 2004 | 11:44 AM
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Originally Posted by Xsta Z 28
Number one this thread asks for 9" wheel.

And again . . .

Just because a tire shop recklessly "shoves" an innappropriate tire onto the wrong rim does not make it RIGHT or OK.

As I said before . . .

295's REQUIRE A 10" Wheel
315's REQUIRE A 11" Wheel

I don't give a damn what you can force to fit on the wheel, if a manufacturer says no, than no . . . . your car, your life . . . and actually other's lives since I assume you do dirive your cars on the road.

You all have your "opinions" about what is right, and what is acceptable to you, but these are TIRES, the only four things that keep your car shiney side up on the road, one of these days one of you will have something happen to your oversized tires on undersized wheels . . . . Heres an idea, you all spent about $25,000 to $30,000 on you car, so if you had that money in your pocket would you follow bank recommendations or, are you going ask the drug dealer on the street corner where to put $30,000 away safely?
Please stop being an **** *****. Thank you. We do not care. Stay out of our thread. This man is interested, and my tires are being mounted today.

Go spend your time trying to save the whales because you have a better chance of that then having me or him listen to you.

Your point at the end made absolutely no sense.

I realize you are trying to help us.. but just as many people have done this... and will continue to do this. The nitto 315 is BARELY 1 3/4th" bigger then their 275. And the 275 doesn't stick out at all!


Last edited by ThackerSS; Aug 11, 2004 at 11:51 AM.
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