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Best autoX tire?

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Old Oct 30, 2006 | 08:21 PM
  #21  
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In 2005 I ran Hoosier R3S05's; four 275/35-18 on four 18x8 Enkei RPF1's. they worked out great, I was very pleased w/ the life and the grip level (once they got warm). I kept track of exactly how many runs that set of tires had and to date they have gone through 118 autoX runs. They were flipped once after 75 runs. By running the same size I was able to mount them on any corner I want, wearing them out very evenly (yes, the ice mode issue was present at times but acceptable). I'm guessing that I might be able to get 20 more runs out of them before they chord and when they do, I'm hoping that they might all cord at the same time. How's that for planning?

This past season I ran an S14 on Kumho V710's. I also kept track of how many runs they went through. Provided they are not symmetrical; we were able to get 115 runs before 2 of them they started showing chord on the shoulder. Although they were directional; I had them flipped and attempted to run them; we were able to get about 20 more runs out of them before we noticed that the groves were wearing in an unusually manner (as to be expected) and we continued to run them for another 10 runs and found that the tires started to loose their grip.

Although I did not try both tires on the same car; I believe the Kumhos had superior grip and greater longevity if you're not planning to flip your tires. Yes, the Hoosiers were R's instead of A's but the # of runs w/ A's would not have lasted nearly as long. I drove another stock Z w/ the A's to build a comparision. It seems that after 2 runs the R's were warm enough to have the same level of grip as the A's.

The Hoosiers never got greasy on me and I never felt the need to water them down in the summer. However the Kumhos required a significant amount of watering down, almost ever time we drove it this year. It was a co-driven car so that would have added to the need to cool down the tires.

I'd recommed running 275/40-17 V710's on all 4 wheels. They'll be the ice-mode issue, but as long as you're not looking to be competative at the National level; it should give you the grip you want, affordability (cheaper than Hoosiers and you won't have to fill 'em) and enough life to make it through an autoX season and practice days. Well... maybe not through all the practice days you're gonna be going to next year.
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Old Nov 17, 2006 | 02:04 PM
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Originally Posted by ULLLOSE
I call BS on that... Every guy that did not win thought he was on the wrong tires. A quick count shows Kumho won 17 classes and Hoosier won 17. Call them equal but we all know the cost vs life issue.

They only reason to use the Hoosier imho is if they make a better size for your car. An Example of this is In SS you need the Hoosier for a Z06 or Lotus because they have a better size for the Z06 and Kumho does not have a rear tire for the Elise.

In B Stock guys on 245, 275 and 285 Hoosiers could not keep up with cars on 245 V710s.

btw what is good for one car is not always best for your car.... Look at what tires are on the cars that win in your class.
Hi.

I think that Hoosier and Kuhmo had equal wins because the Kuhmo was the predominant tire, no?

For what it's worth, everyone I know who autox's believes the 06 is the most superior tire you can get for Autox.

I have 255/40/17 Azenis on the LE28N's.... fronts are 17x7.5
I'm running tire class.... BStock has only 1 other dude locally and I would probably chase him off if I competed. Tire class usually has about 5-12 cars, of all makes and models.
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Old Nov 17, 2006 | 03:32 PM
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I will probably have a nationally competitive person co-driving my car next season. We will probably be running Hoosier A6 tires in 285/30/18s. These tires are already mounted and there is no issues with rubbing or any other issues and they are fast.

We may also get a set of 710s in the same size to do some comparisons. For the Z the best size that we have found this year is 285s. We plan on giving Uloose a run for his money next year.

K
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Old Nov 17, 2006 | 05:34 PM
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Best autox tire is not hard to determine.Look at this years Nationals results for B Stock....36 cars.... 26 Kumho 710, 9 Hoosier A6 and 1 Yokohama. The top Z cars where on 285/30/18 710's.For your 17" wheels the 275/40 710 is the perfect tire(biggest 17 with the right diameter). The trouble with all Hoosiers since the A3S03 is poor wear on the nose heavy,camber disadvantaged Z.They may be fine for alot of cars but not a stock Z.If you are competing in a nonstock class where you can mod the front suspension to get camber then Hoosiers will do better but still not close to the 710 for wear.As to which tire is faster,again,look at the results.
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Old Nov 17, 2006 | 06:56 PM
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Originally Posted by Kirkster
We plan on giving Uloose a run for his money next year.

K
Good luck with that.... btw if you Z boys did not know yet your top guy, Carter, is now driving an RX8. He even works for Nissan, oh the shame when you show up at work in an RX8 and are asked to park around the back.

You guys all need to hook up with the Thompson's tire guy, that mad man can fit the 285 V710 on an 8".
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Old Nov 17, 2006 | 07:34 PM
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I had been running Victoracers in 275/40-17 at 36/30 pressures. I just went to 710s in the same size. Do I need to try different pressures from the Victoracers?
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Old Nov 17, 2006 | 08:21 PM
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Originally Posted by ULLLOSE
Good luck with that.... btw if you Z boys did not know yet your top guy, Carter, is now driving an RX8. He even works for Nissan, oh the shame when you show up at work in an RX8 and are asked to park around the back.

You guys all need to hook up with the Thompson's tire guy, that mad man can fit the 285 V710 on an 8".
Carter will not be driving the RX8 to work....it is a dedicated autox car(that's one reason).Regarding our mad man Tire guy....he has no name,address or phone number.
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Old Nov 17, 2006 | 09:10 PM
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Originally Posted by wahoo5
I had been running Victoracers in 275/40-17 at 36/30 pressures. I just went to 710s in the same size. Do I need to try different pressures from the Victoracers?
Very likely LOWER. My 710 pressures are not even 75% of my Hoosier pressures.
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Old Nov 17, 2006 | 09:11 PM
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Originally Posted by ULLLOSE
Good luck with that.... btw if you Z boys did not know yet your top guy, Carter, is now driving an RX8. He even works for Nissan, oh the shame when you show up at work in an RX8 and are asked to park around the back.
You know, arrogance and taunting really don't look good on you...
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Old Nov 18, 2006 | 06:19 AM
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Originally Posted by PDX_Racer
You know, arrogance and taunting really don't look good on you...
Are we talking about the same Jason?
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Old Nov 18, 2006 | 06:44 AM
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Just a quick question, but why has no one mentioned Pirelli?
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Old Nov 18, 2006 | 07:34 AM
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Just a quick question, but why has no one mentioned Pirelli?
OK... Pirelli! I'll also mention Michellin, Yokohama, Goodyear, Firestone, General, Kelly, Toyo, Sumitomo, Hankook, etc. They've all been mentioned but are not really relevant to the topic of this thread.

Hoosier and Kumho are the top dogs in the DOT-R autocross world. Falken, Avon, Kumho, and BFG are the top dogs in the street tire autocross world.
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Old Nov 18, 2006 | 08:06 AM
  #33  
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We have some Kumho 710's in 285/30 x 18 that are take-offs from VIR and the runoffs. I think we have 5 sets right now. Most of these are $300 a set. We also have one set of lightly used Kumho Ecsta V70 A full depth 225/40 x 18 at $350 a set. Also one set of 245/35 x 18 710's at $300 a set. Also one set of 265/45 x 16 Kumho new shaved VictoRacer V 700, make offer. We will have take-offs all thru 2007 in mostly 285/30 x 18 size, reserve a set. You pay shipping on all tires from Arlington, Virginia. We also might have one set of used Enkei 18 x 8.5 RFP1 wheels, used on season. Used but not abused.
Call Rob Hines 703-989-1536 after 27 Nov.
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Old Nov 18, 2006 | 08:55 AM
  #34  
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Originally Posted by merlot350Z
We have some Kumho 710's in 285/30 x 18 that are take-offs from VIR and the runoffs.
I got a set of 245s from Rob last spring -- and they actually worked very well pretty much all year.

Rob, save one set of the 285s for me!
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Old Nov 18, 2006 | 09:07 AM
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Originally Posted by merlot350Z
We have some Kumho 710's in 285/30 x 18 that are take-offs from VIR and the runoffs. I think we have 5 sets right now. Most of these are $300 a set. We also have one set of lightly used Kumho Ecsta V70 A full depth 225/40 x 18 at $350 a set. Also one set of 245/35 x 18 710's at $300 a set. Also one set of 265/45 x 16 Kumho new shaved VictoRacer V 700, make offer. We will have take-offs all thru 2007 in mostly 285/30 x 18 size, reserve a set. You pay shipping on all tires from Arlington, Virginia. We also might have one set of used Enkei 18 x 8.5 RFP1 wheels, used on season. Used but not abused.
Call Rob Hines 703-989-1536 after 27 Nov.
Added bonus for your tire installer, a used tire just about falls on the wheel unlike the fight a stiff new one puts up. Some of you Hoosier fans should pick those up and when the used 285 v710 kills your fresh Hoosier you will understand.
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Old Nov 18, 2006 | 09:08 AM
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Originally Posted by PDX_Racer
You know, arrogance and taunting really don't look good on you...
Hey the men are talking here... When you can keep up with BSL you can post again.
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Old Nov 19, 2006 | 09:34 AM
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Originally Posted by PedalFaster
Are we talking about the same Jason?
I'm trying to be polite to the RX-8 driver who also happens to be the current national champion.
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Old Nov 20, 2006 | 04:51 AM
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Originally Posted by ULLLOSE
Good luck with that.... btw if you Z boys did not know yet your top guy, Carter, is now driving an RX8. He even works for Nissan, oh the shame when you show up at work in an RX8 and are asked to park around the back.

You guys all need to hook up with the Thompson's tire guy, that mad man can fit the 285 V710 on an 8".
Hhmmm, I think a 350Z Track w/ Konis/Hoosiers/Exhaust/Swaybar that was able to PAX TWO current National Champs (one FS, one ESP) is going to be fairly competitive. Even beat the ESP car on raw time....
Check the results:
http://www.autocrossersinc.org/docs/...11_05_2006.pdf

Last edited by 240Zs; Nov 20, 2006 at 07:56 AM.
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Old Nov 20, 2006 | 05:20 AM
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Originally Posted by 240Zs
Hhmmm, I think a 350Z Track w/ Konis/Hoosiers/Exhaust/Swaybar that was able to PAX TWO current National Champs (one FS, one ESP) is going to be
fairly competitive. Even beat the ESP car on raw time....
Check the results:
http://www.autocrossersinc.org/docs/...11_05_2006.pdf
For sure a quality Z performance against a host of top level drivers.However,Mr.P the Z driver,is not exactly chopped liver himself.
\
Point of interest,what front bar and how are the front outside edges wearing on the Hoosiers?
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Old Nov 20, 2006 | 05:32 AM
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Originally Posted by 240Zs
Hhmmm, I think a 350Z Track w/ Konis/Hoosiers/Exhaust/Swaybar that was able to PAX TWO current National Champs (one FS, one ESP) is going to be
fairly competitive. Even beat the ESP car on raw time....
Check the results:
http://www.autocrossersinc.org/docs/...11_05_2006.pdf
I liked Sammys comment when he got out of it after his only two runs in the car at our test and tune. "that Fkr is fast".

No knocks on Carter, but everyone who has driven my car since we put on the A6s says it likes to be thrown around better than it likes to be finessed around the autox course. Since Carter is going to an RX-8 maybe he was trying to finesse the Z when that may have not been the best way to go...

Time will tell this year. I may be slow as crap after not doing this for 4 years, but I am sure that Sammy and Lee know what they are talking about when it comes to car handling and dynamics.

Oh and this was before we got the play out of the front suspension or even a basic alignment. We have some camber now, so it should stop eating the front drivers side tires...
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