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Old 12-01-2004, 06:15 PM
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SungNamZ
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Question Tire Size Thoughts

The time has come to start thinking about replacing the tires on my SSR GT3 18" X 9.0" +31 offset rim. Currently I am running Potenza S-03 "Pole Position" 225/45/18 (F) and 245/45/18 (R).

Currently considering in order listed: Goodyear F1 GS D3, BF Goodrich G-Force T/A KDW, Potenza S-03 "Pole Position", Michelin Pilot Sport, Dunlop SP Sport 9000, Toyo and Nitto.

Given the wheels, while also maintaining no more than .75 inch difference between the front and rear tire diameters, I received a recommendation to go with: 245/45r18 (F) and 275/40r18 (R).

Your thoughts?
Old 12-02-2004, 04:30 AM
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mdacko
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are they 18x9 all the way around?

get wider tires than that
Old 12-02-2004, 04:48 AM
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King Tut
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Default Re: Tire Size Thoughts

Dunlop SP Sport 9000 245/40r18 (F) and 275/40r18 (R)

That would get my vote. I have had no issues with my SP9000s.
Old 12-02-2004, 05:39 AM
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350z2930
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Default Re: Re: Tire Size Thoughts

Originally posted by King Tut
Dunlop SP Sport 9000 245/40r18 (F) and 275/40r18 (R)

That would get my vote. I have had no issues with my SP9000s.

I agree with you.
Old 12-02-2004, 09:49 AM
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ReavTek
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You said someone recommended you:

245/45r18 (F) and 275/40r18 (R)

The problem with this is look at the profile of the front tire. It is 45 compared to the rear at 40. I would make them both the same so the car sits even.... especially since the front should not be taller than the rear. As for the size I think 245 (f) and 275 (r) is fine but this is gonna get pretty expensive fast if you go through tires as fast as I do. Maybe you should get some "daily driver" wheels and some "track/performance" wheels so you can use less expensive tires (225 or 245 all around) for just driving to and from work or school and then have some track wheels with some insanely wide and grippy rubber for track days.

Anyways, as for brand I would recommend the Dunlops from you list. I would also try Falken or Kumho if you want to save a buck as they do carry quality tires for a good price.
Old 12-02-2004, 11:15 AM
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SungNamZ
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Recommendation was from Sales @ Discount Tire Direct.

"I would recommend going with a 245/45r18 in the front and 275/40r18 in the rear. On ideal wheels per tire size the variance would be .2". That would be an 18X8 front and 18X9.5 rear. Because you are running 18X9s the overall diameters of both tires shold be even. ?

Thanks for ALL the input. Leaning towards Dunlop or Goodyear. Will also have a look at thos Flaken or Kumho.
Old 12-02-2004, 01:10 PM
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1nate7
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Originally posted by SungNamZ
Recommendation was from Sales @ Discount Tire Direct.

"I would recommend going with a 245/45r18 in the front and 275/40r18 in the rear. On ideal wheels per tire size the variance would be .2". That would be an 18X8 front and 18X9.5 rear. Because you are running 18X9s the overall diameters of both tires shold be even. ?
That would be fine if the Z were set up that way stock. Nissan engineered the Z with a 1" larger diameter rear tire/wheel. 245/40 and 275/40 would be your best bet IMO. You can stagger the tires on same size rims just like Nissan does with the performance/touring 18" x 8" rims with 225/245 tires.
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