I'm throwing my pride to the wind and posting boldly

I will be buying tires to run street-tire class autox in my local club. Found many options. Wondering what fast drivers have tried and liked most. This is my list so far. If (IF) all these tires could be had in the same sizes (i.e. 215/45 and 245/40-I know they can't) and driven by the same fast, consistent driver. How would you rank the times (fastest to slowest)?

BTW, all these will hold up great for 6 autox's over a year, if not used on the street at all, right?

Thank you very much for any input you can offer. Ya'll are my racing bible.

Yokohama Advan Neova ADO7
Bridgestone Potenza REO1R
BFGoodrich T/A KD
Falken Azenis RT-615
Kumho Ecsta MX
Hancook RS2

 

I agree with the order in your list. JMO.

 

If you're running in a street tire class and only going to 6 events per year, just use the tires as your daily tires. I don't think I could justify the cost of the Advans or Bridgestones to myself for only 6 events if that's all I used them for.

I also agree with the order you have presented, although nobody really knows where the Bridgestones fit in, and I have doubts that the BFG KDs would rank that high.

For 6 events per year you're probably okay driving to events on V710s, depending on how far you have to go and the probability of rain.

 

Th stickiest tire there would be the Advan, but you can buy V710's cheaper!! My order of preference:

1- Falken Azenis
2- Advans
3- Potenza's
4- Hankook RS2's
5- Ecsta MX
6- KD's

For the price and amount of grip I'd take the Azenis every time, no cost issue then go with the Advans.

 

theres a street tire class for s2000??
i thought there is only A stock or BSP
due to the 2.0L engine??
correct me if im wrong please, i would like to move to a street tire class too.
thankz

 

SCCA has stock street tire(AS T1), BSP-T2, and SM-T2.

 

ohh really, i live in vancouver, BC and and i autoX with VCMC at boundary bay
i'm new to it, but i've been asking around and i didnt hear anything about the street tire class. i heard they will make it soon or something in 2007,

anyways thank you

 

Thanks for the input.

I trashed my kuhmo mx rear tires in less than 3 months between 2 autox's and street driving. So... I just purchased AP1 rims and tires and am running those on the streets (getting whatever used/dirt cheap tires I can keep on 'em) My street driving must be pretty crazy, compared to most.

The street-tire class I'm running in is just a local club thing.

I don't want to use r-comps because I am still learning-would like to become very fast on streets first. I've heard that r-comps can "hide a lot of mistakes." I'm also very competitive though, and want a good tire.

So... I was considering tossing out the MX's just because I've been there, done that, but maybe I'll keep them as an option. I'm also tossing the advans due to price. A couple of fast drivers in my club have run on RS2's and feel the MX's are much better-so I wouldn't want to "step down."

So I guess I'm left with these:

Bridgestone Potenza REO1R's
BFGoodrich T/A KD's
Falken Azenis RT-615's
Kumho Ecsta MX

P.S. I don't know if we are giving the KD's enough credit. Tirerack sure thinks they're fast as hek. (I don't know their motives, though ) Wish they dealt falkens and had those in the comparison.

Thanks again

 

Tire Rack's testing shows both the RE-01R and the AD-07 as faster than the KD. They don't carry the Falkens or Hankooks, and didn't test them. I think that a lot of people don't consider the KDs for the same reason you're not considering the AD-07s: price.

Your wear rate is nigh-unbelievable. How many runs at each autocross? How many drivers? How many miles per month? My AD-07s lasted 10,000 miles of street driving and 10 autocross runs before they reached the wear bars. If I wore out tires like you did, I'd restrict my list to the cheap tires: Kumhos, Falkens, and Hankooks.

Street Tire classes other than STS/STS2/STX/STU are regional in nature. Individual clubs create the classes that they think are appropriate for their membership.

 

We run a street-tire S2000 class down here called STS2K. It has only two rules: you must have an S2000, and it must have tires with a treadwear of 140 or higher. The thought is that all street-tired S2000 is pretty much equal: a turbo'd S probably isn't going to be any faster than an NA around an autocross course on if they are both on street-tires. Nobody has really built a car for this class: it's just a way for S2K owners to drive on a fairly even playing field without having to resort to R-compounds.

Having said that, I stuffed my ASA FR1s (17x8f, 17x9r) with 225f/275r Kumho MXs in hopes that my stock-suspended AP1 will have less snap-oversteer in STS2K. I struggled with the MX/RS2/RT-615 decision for weeks, and went with the MX for the following reasons:

1. Size options: Hankook just didn't have the size range I was interested in, stopping at just 245mm. The MX and Azenis were available in much wider sizes. The 275 MX measured out a little wider than the 275 Azenis.

2. Temperature range: The MX's are known to have a high resistance to heat, so they should not need cooling spray like the Azenis. Since I also track the car a lot, I didn't want to get anything that overheated quickly. The seem to get better as they get warmer. With Azenis, they can never be too cold.

3. Tire Life: a compromise was made here: the MX lasts longer because it has more tread and a harder compound.

4. Cost: At $30 cheaper per rear tire and lasts longer, the MX will save me a lot of money over the Azenis.

I'd expect the Azenis to be a little faster, but at a much higher cost.Hopefully, the MX won't be much slower, especially since I got such a generous size.