[Z06] Autocross Tires

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Feb 7, 2013 | 09:01 PM

regganib

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Autocross Tires

I'm getting tired of the Hoosier A6 bills and am looking to go to a street tire class with SCCA. Tread wear rating has to be at least 140. Looking for a fast tire that can tolerate a reasonable amount of heat, the car is run as a two driver. Sizes in the good tires are an issue. I wanted to see what others are using on their Z06. I've listed some of the possibilities below.

Kumho XS - F295/ R315 Tires have been out of stock for months and Kumho has no production date in the near future.

Hankook RS3 - F255/ R285 I'm afraid its just not enough tire.

BFG Rival - F255/ R315 I think the front is just too small

Falken RT615 K - F275/ R315

Nitto NT05 - F275/ R295

Michelin PS2 F275/ R315 Very pricey

Feb 7, 2013 | 10:15 PM

PeteZ06

Safety Car

Joined: Mar 2004

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From: Bartlett IL

St. Jude Donor '07-'08-'09-'10-'11

Toyo R888

Feb 8, 2013 | 12:47 AM

hxrly

Racer

Joined: Feb 2012

Posts: 391

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From: El Paso TX

Michelin PS2 according to everybody's reviews, but like you mentioned, pricy.

I did my research and for the price the NT05s couldn't be beat. The Kuhmo XS is a much better autocross tire, but like you said, currently unavailable.

Here's the NT05s:

Here's with the current Continentals DW:

I am going back to the Nittos. They're not the stickiest, but they're the best tires for the money in stock sizes (275 up front).

Feb 8, 2013 | 11:07 AM

regganib

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Unfortunately I can’t use the Toyo R888 because it has a 100 tread wear rating, SCCA requires at least 140.

How does the Continental tire fair in autocross?

Does anyone know anything about the Falken RT615 K?

Feb 8, 2013 | 12:40 PM

69autoXr

Melting Slicks

Joined: Jan 2004

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From: Detroit MI

There's been a lot of discussion on this topic over on sccaforums.com since the Dunlop Direzza ZII came out and the BFG Rival was launched. You might want to look there and see what has been talked about.

If it were me I'd hold out for the BFG in 255F and 295R.

Feb 8, 2013 | 12:45 PM

Scooter70

Le Mans Master

Joined: Oct 2001

Posts: 5,145

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From: The Motor City

Have you been over to the AutoX and Roadracing section of CorvetteForum? Check out this thread:

http://forums.corvetteforum.com/auto...eet-class.html

http://www.sccaforums.com/forums/for...e/posts#417812

Feb 8, 2013 | 06:08 PM

Omaha02Z06

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I sure wish Dunlop made the Star Specs in our sizes.

The NT05’s are going to be your best bet since the XS’s aren’t in stock and haven’t been for awhile now. David Green (Tallon95 on here IIRC) ran in ST class last year using the RS3’s on his C5Z06 but if memory servers me right he switched back to SS for nats.

Feb 10, 2013 | 10:41 AM

regganib

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Thanks. I guess for now it will be the RS3 unless some more XS's get made any time soon. It'll be interesting to see how the Rival does since it will have a 255/295 combination almost the same as the RS3.

It kills me to put a tire on that small after using the 295/315 Hoosier A6's.