THSCC Forums

IMHO any hyper expensive tire that meets existing ST* rules will be put on the ST* tire exclusion list by SCCA. I personally think this is one reason why you don't see Hoosier and Kumho trying to build some type of killer ST* tire (which they would have to price $$$ accordingly)

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Richard Casto
1972 Porsche 914
2013 Honda Fit Sport
2015 Honda Fit EX
http://motorsport.zyyz.com
Money can't buy happiness, but somehow it's more comfortable to cry in a Porsche than a Kia.

I don't see price as a huge factor for the exclusion list. The Yokohama Neova AD07 is an expensive tire. They cost basically as much as the r-comps. Kuhmo just hasn't spent its money on a new street touring tire mainly because there is still a loyal following that run the MX and it has been successful in winning the STS National championship the last several years.

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2010 Honda Fit Sport
Couple of bicycles

Keith, I don't know anything about that particular Yokohama. How competative is it? Has anyone run it against the current "it" tires in ST*? I probably should have said...

If someone brings out a new tire AND it potentially can clean the clock of the existing group of ST tires (i.e. R-tire with 140 wear label) AND it costs significantly more than the existing tires (which are generally inexpensive) then I think that manufacture runs the risk of having the tire put on the exclusion list.

Right now the only tire on the exclusion list is the Pirelli P Zero Corsa. If I goto Tirerack.com and pick the closest size to my car 205/50-17 (they don't have any 16 apparently) it would be $181 per tire. Which is a significant jump over the roughly less than $100 per tire I pay now for an "it" ST tire. I assume that the P Zero would be competative, otherwise why put it on the exclusion list. So why put it on the exclusion list at all? I assume because of it's cost. And that they want to keep the cost down for the ST* classes. Otherwise they should just let you run any DOT tire (i.e. R tire).

But who knows. I have no idea when the last time a tire was considered to be put on the exclusion list. Also, I am sure SCCA doesn't want to bite the hand the feeds it. So if a big existing and long time supporter like Hoosier or Kumho came out with a new ST* tire and it was semi-pricey. They might let it slide.

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Richard Casto
1972 Porsche 914
2013 Honda Fit Sport
2015 Honda Fit EX
http://motorsport.zyyz.com
Money can't buy happiness, but somehow it's more comfortable to cry in a Porsche than a Kia.

I'd assumed the issue with the P Zero Corsa was availability in the required number and range of sizes, not cost or R-comp-like abilities.

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Martyn Wheeler
AXing Kit's '05 Mazda 3, #29 HStock
(when The Gonzo Symphonic allows)

I would assume that the regular stock class tire availablity rules would come into play here and wouldn't need to resort to listing it in the tire exclusion list.

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Richard Casto
1972 Porsche 914
2013 Honda Fit Sport
2015 Honda Fit EX
http://motorsport.zyyz.com
Money can't buy happiness, but somehow it's more comfortable to cry in a Porsche than a Kia.

I believe the Corsa was put on the exclusion list because it is a competition (R) tire, not a regular street tire. If you look at the specs, all sizes of the tire have a tread wear rating of 60 except the 215/45-17 which is listed as 140. With the touring classes limited to tires with a rating of 140 and above, it seems Pirelli is either trying to pull a fast one or that one size is listed incorrectly. I'm not sure anybody got an official clarification as to what the deal with that was but several people noticed it sometime last year and it was dealt with appropriately, IMO.

Jim

From reading the description, that one size is a different design. It's initial tread depth is 8/32. I would guess it was designed for a specific racing series as a spec tire.

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Jim Pastorius
2008 Silverado VortecMax
1992 Camaro CMC#92
2002 BMW R1150R

2009 3rd Place CMC Mid-Atlantic Championship
2009 CMC Hyperfest Winner

That Yokohama was on the car that won STX at Nationals. The starting price for them is about $160, I believe. Having never priced them out exactly I am not sure of the prices. Price does not have a huge deal with being put on the exclusion list. Only the performance or I should say expected performance of the tire does. If SCCA feels the tire will make all other ST tires obsolete then it will probably go on the exclusion list.

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2010 Honda Fit Sport
Couple of bicycles

Actually the 1st and 2nd STX finishers and 1,2 and 4 at the Pro Finale were on the Advan Neovas. They would be the "it" tire to have if you can get them in your size, and justify the cost. Also Ian Stuart and Jason Rhoades drove on the Neovas in STU at the Pro Finale. They would have been 1-2 had they not been bumped to BSP!

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Todd Breakey
STS 42 - 1992 Sunburst Miata
Dammit!
"You souldn't play leap frog with a porcupine. You might get hurt." - Eliza

Interesting. I had no idea. I looked at Yokohama's web site. Size limitions is an issue. Since they have one narrow 16" and the rest are 17 and 18 I can see how it is not an STS tire (which is probably why I knew nothing about the tire). I also looked back at the ST* tire rules and had forgot that ST* tires don't follow the 13.3.F rule (min 4 diameters and 6 sizes) which is why this tire is legal.

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Richard Casto
1972 Porsche 914
2013 Honda Fit Sport
2015 Honda Fit EX
http://motorsport.zyyz.com
Money can't buy happiness, but somehow it's more comfortable to cry in a Porsche than a Kia.

I just saw this on m.net. This looks like a hot tire for the 15" crowd and the price is reasonable. They also seem to have wide tires in other sizes as well.

Hankook is coming out with a 225/ 45 r15 RS-2 tire!
Hopefully other manufacturers will follow.

http://www.hankooktireusa.com/pdf/uploa ... 20Z212.pdf

http://ssl.delti.com/cgi-bin/reifensuch ... Country=US

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GS - 17 Honda Civic Si
STS - 91 Honda Civic Si
S04 - 00 Subaru Impreza 2.5 RS

http://www.kestrelracing.com