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Old 10-03-2010, 05:20 PM   #21
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Kumho ECSTA AST are cheap all season 61$ a piece 225/50/15's. Im sure there not awesome sticky but pretty good. Reviews give it a 6.5 at tire rack.
i've got them in a smaller size, i don't freak out in the snow or rain, they have enough grip for me now, not FI though.

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Originally Posted by emilio700 View Post
Some of you may be deciding between the 6UL variants so I though I'd post these images to show the differences. Exact same car. Just jacked it up and swapped wheels. All inflated to 30psi.

Oh and yes, the 15x7 & 15x7.5 are finally in production. Due here in November.
so sexy, i wish i had saved the money and not bought the cheaper, comparatively chinese looking knockoffs.

some day soon i hope.

p.s. that is a sweet *** orange miata

Last edited by frostyllama; 10-04-2010 at 03:56 AM.
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Old 11-11-2010, 02:23 PM   #22
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15x7 to me.
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Old 11-11-2010, 06:10 PM   #23
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The Hankook RS3 is a 140 treadwear. Though, I wouldn't want to drive that compound in cold temperatures.
I've driven mine in 40ish degree temps without any issues. I went from Azenis (RT-215's) to the RS-3's and while the Azenis were wildly different in cold temps, the RS3's you can tell but it's not a dramatic difference.
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Old 11-18-2010, 04:35 PM   #24
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I've driven mine in 40ish degree temps without any issues. I went from Azenis (RT-215's) to the RS-3's and while the Azenis were wildly different in cold temps, the RS3's you can tell but it's not a dramatic difference.
I've got RS3's for summer and cheapo Falken 195/60/14 512's for the rest of the time. When it hits in the low 40's it takes a really good warm up for the RS3's to perform any better than the 512's. I got them late in the season (when it was cold) and I was really disappointed for the first drive (combo of new release compound and cold rubber.) They are already stored in the basement for next season (Michigan.)
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Old 11-21-2010, 10:21 PM   #25
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throw some snow tires on them

me like pretty things.
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Old 11-22-2010, 12:32 AM   #26
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Looks like the ship date has been pushed back till December. Any idea when they might come in? I'm looking to order some 15x8's and would like to know if they are gonna be here this year
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Old 11-22-2010, 02:09 AM   #27
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Looks like the ship date has been pushed back till December. Any idea when they might come in? I'm looking to order some 15x8's and would like to know if they are gonna be here this year
Check our website for details on the exact version you are interested in.

Ship date for current production run of 15x8 & 15x9 has not changed since first posted on site and are right on schedule. 15x7 & 15x7.5 6UL were delayed almost 6 months but finally completed last week.

Best to contact us directly for latest details as forum posts are only current for the one day.
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Old 12-12-2010, 01:55 PM   #28
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I love my 15x8's with 225's car loves them too.
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Old 12-12-2010, 06:56 PM   #29
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I love my 15x8's with 225's car loves them too.
Thats good news. I will be running this same setup for next season
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Old 01-07-2011, 01:10 PM   #30
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Big thanks to Emilio for special delivery late last night of our 6ul shipment. Getting my first look at the new 15x7.5 6UL today and I must say it is another home run....easy to predict that this will be THE WHEEL on all the fast STS class autocross cars this year!
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Old 01-07-2011, 01:50 PM   #31
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Do I understand correctly that with 225 tires, 15x9's are faster than 15x8?
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Old 01-07-2011, 02:02 PM   #32
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Originally Posted by JasonC SBB View Post
Do I understand correctly that with 225 tires, 15x9's are faster than 15x8?

Yes....15x9 faster for autocross or track thanks to more stable contact patch, more ultimate grip from the same size tire.
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Old 01-07-2011, 02:04 PM   #33
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Do I understand correctly that with 225 tires, 15x9's are faster than 15x8?
Yup. Depends on the car and course but we usually see about a second on a 2 minute + road course, less on a shorter one. Autocross is less, maybe .4~.6 typically.

General rule of thumb (my rule): For maximum performance from radials, choose wheel width at least as wide as tire section width. Ignore bead width, tread width and manufacturers (lawyers) recommendations.
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Old 01-07-2011, 02:52 PM   #34
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Do I understand correctly that with 225 tires, 15x9's are faster than 15x8?
Without a doubt.

205's and 225's are about the same when mounted on a 7" rim

Go to an 8" rim and 225's are better.

Go to a 9" rim and the performance increase from 8 to 9 is even more than the jump from 7 to 8 with the 225's.

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Old 01-07-2011, 06:37 PM   #35
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Originally Posted by Good-Win Racing LLC View Post
Big thanks to Emilio for special delivery late last night of our 6ul shipment. Getting my first look at the new 15x7.5 6UL today and I must say it is another home run....easy to predict that this will be THE WHEEL on all the fast STS class autocross cars this year!
Glad to hear that. I have been with excitment ever since I maned up and order my 15x8's

Thanks for being able to switch my order to nickle also
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Old 01-09-2011, 10:07 PM   #36
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So if 15x8's with 225 tires don't rub on my 2000 without fender rolling, does it mean that the same tires on 15x9's won't rub as well? If they will, how is that so? The tire tread is located in the same place in space... or does it rub on the sidewalls near the rim's inside lip at full lock?
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Old 01-09-2011, 10:54 PM   #37
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Originally Posted by JasonC SBB View Post
So if 15x8's with 225 tires don't rub on my 2000 without fender rolling, does it mean that the same tires on 15x9's won't rub as well? If they will, how is that so? The tire tread is located in the same place in space... or does it rub on the sidewalls near the rim's inside lip at full lock?
9" wheel sometimes contacts control arm at full lock.

I wonder how many times I've typed that.
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Old 01-09-2011, 11:00 PM   #38
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Emilio, do you have any pictures on file of a 225 50 15 on a 15x9 on an NA. Im having a hard time finding some fitment pics. Im only looking at a 50 series tire because I have a line on 225 50 15 V710s for $65 each. Once they wear out Ill go to a 225 45.
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Old 01-09-2011, 11:07 PM   #39
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They're really big.

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And check the tire size and gearing calculators to see if you really want to do it.
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Old 01-09-2011, 11:32 PM   #40
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I think gearing should be fine since Im running a 4.4 final drive with a 5 sp. If anything larger tire size will be kind of like going with a longer final drive.
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