Hey Guys, Im in the market for some R's. Never drove on R's but i think its the time to step it up besides the car isnt competitive on streets(not to mention the major lack of grip). Anyway ive been hearing alot about the V710's but they only come in 245/35/18 and the hoosier's in 275/35/18. i was also wondering if anybody is running theV700 cuase they do come in 265/35/18. which of these tires are you guys recommending and why. Im putting them on the stock 18's(at least for this season). Thanks in advance.
Jonathan

 

Well if you want the tire that has the most grip I would say go with the Hoosiers. The Kumhos have good grip as well but for me they are not as sticky as the Hoosiers but they do last longer. I don't know other peoples experience with Hoosiers but I was only getting one track day out of them. Have you thought about using the Yokohama slicks? http://www.yokohamatire.com/ms-alms.asp They last alot longer than the Hoosiers with tons more grip.

 

V710s - right now the "hot tire" but as you saw, only available (now) in 245.
V700s - good when cold, slippery when hot.
Hoosier - S04 may have tire wear issues, S05 is an unknown quantity at this point since 275s are on special order.

 

The hoosier S05s have the same wear issues apparently. I would go with the 245 kumho 710s The will provide more grip than the 265 V700s, similar to slightly more grip than the Hoosier and last longer than both put together. The 710 is the best R compound tire I have ever driven on not only in terms or grip but also wear.


You will not loose that much contact patch going with a 245. I think it would do very well for you.

 

I'm a big fan of 710s right now. They are a great tire, especially if you have a 17. I know you have an 18, but I'd give the 245s a shot if you can get them

 

Jonathan, Autocross or HPDE's? BIG difference!

 

where can u buy these yokohama slicks! thank you

 

I could be wrong, but I bet that unless you are a part of the ALMS, you cannot order these tires new.

 

You can order them new straight from Yokohama. I ordered a couple of sets last year. You just have to speak to the Motorsports division. You can also get new tires from Bob Woodman. Here is the website.

http://www.bobwoodmantires.com/yokohama/yokohama.html

 

Can someone give me a life estimate comparison between the 710's and the victoracers in an HPDE (advanced level use) environment? I'm trying to decide if I should pony up for the 710's, or whether the longer lifespan of the 710's make them a more rational choice...

ahm

 

EnthuZ, i meant to specify earilier. I want them primarily for AutoX. I was looking at the 710's but for some strange reason im wary about buying competion tires in basically stock sizes.

Do the hoosiers really fall off so quickly? i would be happy with a set that will last me about 20 plus events(wanna compete in two series plus some practice days elsewhere). So thats why i couldnt see paying so much for a set that wouldnt last.

 

You can expect to get 100 60 sec. runs out of the 710's 60 of which they will be awesome and start getting harder from there.

 

any idea if the '100 60 sec runs' idea ports over to HPDE laps? My typical sessions are 20-30 minutes, so if those numbers (ie 100 minutes) translate directly, that means I'll get, at best, a single two-day event, and even that is pushing it (likely minimum of 3 20 minute sessions each day == 120 minutes).

is anyone running the v710's for road course work?

ahm

ps - thanks for the info del, just trying to see if it applies to my expected usage...

 

I have not yet run the Kumhos on a Z, but I have extensive experience on both the Kumho V710 and V700 on road courses. Both are very good tires. I can tell you that the V710 has better overall grip, more consistent performance throughout a track session and will last more heat cycles than the V700.

In my opinion, you will definitely be happier with the V710s.

-Rob

 

If your running HPDE's with Hoosiers you will be lucky to get more than one event if you run all day. I can only get one maybe two 20 minute session on a 1.6 mile course especially if I push as hard as I can. Then again I run on an old airport and the concrete is very abrasive.

 

Very interesting - thank you much! Could you perhaps explain in a little more detail and clarify one thing? There is the v700 (an aggressive-looking street tread tire) and the victoracer v700 (oddly boring looking tread) - to clarify, you're talking about the victoracer, right? WRT to the heat cycles comments, can you tell me, in your experience, how many for each type the tires survived?

What kind of vehicle did you run them on?

Basically, my concern is that a set of v710's will last maybe one 2-day event. While I want more grip than my azenis have, I can get approximately 10 days out of them. If I could get half that (5 days of 3-4 20 minute sessions) I'll be happy. Do you think that is reasonable for either the v710 or the victoracers?

ahm

 

I was looking at victoracers and I was told by a bunch of people that a heavy, rear drive car will shred victoracers. Something like one or two days tops. Of course, I've never used them...

 

For those that have asked about track events (road course), you might want to think about a toyo RA-1. As others have mentioned, the kumhos don't get as many heat cycles as the toyos (not sure about the new 710's as I have not tried them yet personally). This important for those who have to drive on them to and from the track.
Although they don't grip as well as the kumhos's the toyos last much longer, are more consistent, and are not as prone to fading from over heatcycling. Just another option depending on what your priorities are.
Now that I have a trailer, I may give the 710's a try just to see what they're all about.
The toyos are not good for autox because they won't heat up fast enough.

 

Its on my short list... I'm trying to see if anyone has run both the RA-1's and v710 or v700 victoracers on the same car to get an idea on life expectency. I run the RA-1's on my specmiata, and 1) they grip like crazy, and 2) they wear like iron. However - that is a light, low powered car. Things could be very different on the Z. I'd really like to hear from someone who has run a set of each (preferably all three, but here's to hoping ) and can provide some firsthand feedback. I know John was running the RA-1's, and from a ridealong, I can confirm they have some stick . But - that was in a fairly significantly modified car (coil overs, a-arms, not sure what else).

Considering the cost of any of these tires, I'd really like to hear from someone who has at least run one pair of these and can comment on their relative 'stickitivity' (TM), and lifespan.

Anyone? Bueller?

 

I have used the toyos and and v700's on a previous car. The V700's had slightly more stick when newer. They chunked and showed the dreaded "death groove" after about 3 days and I would generally get 5-6 days out of them. They were sticky when new, at their prime on the 3-5th day and overheat cycled by their last day.
The toyos on the other hand progressively got better ever day I used them. I could get 8-10 days out of them and they were at their stickiest towards the end of their life (and I drove them to and from the track). I would have to say that when the toyo's were on their last days their grip was just about as good as the V700's. They were much more consistent tire.
Since I am interested in the best bang for the buck I, have run toyos exclusively on my Z. Now that I have my trailer, I may splurge for a set of V710's once just to check them out.