shiva Posted September 19, 2011 Share Posted September 19, 2011 So, I'm opening this thread because I need some input on tires our car likes. Let me explain, I'm looking for Time-attack (or Qualification class) tires. I'm currently using Khumo's V710 on the beast. 215/45/16 front and 245/45/16 on the rear. They are great tires, don't get me wrong. But I'm looking for a little more grip. I know some of us are using Hoosier A6 and such are track day tires. That's the kind of input I want to get. What's been tried and how long the tires lasted. As a reference, my car is a pig (for a seven) around 1500ish lbs but has 300rwhp. The 245 at the rear can barely keep up. My first idea was to try the hoosier A6 for the timeattack. 245 front and 275 rear. But wondering how much heat I could really get into those tires in the short time I have to do the timed laps. How about those R35 and R45 compound? Any feedbacks appreciated! I want to be able to keep my podium next year too! Link to comment Share on other sites More sharing options...
pureadrenalin Posted September 19, 2011 Share Posted September 19, 2011 Shaved Toyo R888, or RA1's. Dunlop isn't a bad choice either if you can find their race slicks. VERY, VERY consistent tire. Always use a scrubbed set for actual laps, you will get heat into them faster than a set of stickers. If you are having traction issues, look into Davis Traction Control. For heat, if it's allowed, buy some warming blankets. Link to comment Share on other sites More sharing options...
blubarisax Posted September 19, 2011 Share Posted September 19, 2011 I have been using Michelin slicks from Mog-racing.com. They are only lightly used and cost 50 euros, plus shipping. (I don't know the shipping rate as I got them mounted on wheels.) I have used the set six track days (4-5 runs/day), and they looked like they only had one day on them when I got them. They are still sticky once they warm up a bit. They come in a size 23/57-13 for the rears and 20/54-13 on the front. Avon also makes plenty of slicks that you can get at http://www.rogerkrausracing.com/ Link to comment Share on other sites More sharing options...
yellowss7 Posted September 20, 2011 Share Posted September 20, 2011 I've been running trackdays on Hoosier R25B compound slicks. These are the same tires that I Autoxed with. They are the softest compound and when new are as sticky as you can get. My last set I did 8 or nine trackdays and they still had plenty of rubber left, that was over 35 heat cycles over a 2 years timeframe. My current set has 7 trackdays on them and they still have good grip I'm going to see if I can get another 5 to 6 more trackdays out of them this year. They are 9 x 13 by the way on 10 inch rims at all four corners. Tom Link to comment Share on other sites More sharing options...
shiva Posted September 20, 2011 Author Share Posted September 20, 2011 Wow that's a lot of heat cycles on those R25B... I have about the same on my V710 Khumo but they are a harder compound. My car has a lot more power but I guess that if I keep those softer compound only for the time attack rounds, I'll be able to keep using the khumo (or other) for track days. Now I just need to find those compound in a size that will fit my car. And keep searching Thanks for the info guys. Link to comment Share on other sites More sharing options...
shiva Posted December 16, 2011 Author Share Posted December 16, 2011 So I've been reading a few thread all over the web and some also on the Arial Atom web site. I've got a feel of the tire I'll probably be acquiring for my TimeTrials. I'm double-checking with anyone here that would have positive or negative criticism about the choice! The choice ends up in the Avon range. More specifically the Crossply range. I'm thinking Front: 8.5/23.5-15 or 9.1/23.5-15 in their softest compound which is A11. And for the Rear: 10.5/23.0-15 or 11.0/23.5-15 The front will be mounted on 15x8 and the rear on 15x10 (949 racing wheels). Those tires were normally made for prototypes and single seater, so they are designed for light car. Unlike some A6 and R6 that are made for saloon 2000 to 3000 lbs car. There's even a great choice of wets in the same range. As for my normal track day tires... I think I'll keep the V710 since they were great and lasted a lot of heat cycles. Or maybe try a set of Hoosier A6. Link to comment Share on other sites More sharing options...
Kitcat Posted December 16, 2011 Share Posted December 16, 2011 (edited) I bent two 949 wheels in one of my "off's" at the track. They are light, but they are also fragile. The photo in my Avatar is the much heavier spare wheel (wh/survived a subsequent off-some people just don't learn). Edited December 16, 2011 by Kitcat Link to comment Share on other sites More sharing options...
shiva Posted December 16, 2011 Author Share Posted December 16, 2011 I bent two 949 wheels in one of my "off's" at the track. They are light, but they are also fragile. The photo in my Avatar is the much heavier spare wheel (wh/survived a subsequent off-some people just don't learn). Most lightweight wheels will be fragile to a point. My current second set are Panasport C4 3-pieces wheels. They aren't as light far from it but they are 16" and hard to find proper rubber for. But at 200$ a wheel, let them bend if I do a mistake! that's cheap compared to some 2k wheel set like Kodiak and Keisers. Link to comment Share on other sites More sharing options...
snookwheel Posted December 16, 2011 Share Posted December 16, 2011 My Super Stalker sounds about like your car as far as weight and HP. I use Goodyear R160 22" x 10 x 13 in the rear and 20 x 9.5 x 13 in front. We have only autocrossed on them, but have been very happy with the grip and amount of runs we get on them. With two people driving the car, we put a lot of runs in. Link to comment Share on other sites More sharing options...
MichaelD Posted December 16, 2011 Share Posted December 16, 2011 Careful. Running non DOT approved tires in Time Attack will remove you from a street class. It may move you into a class that requires a full fire suit as well as additional safety features required on your car. I found that out the hard way wen I arrived with A6s instead of Toyo R1s. That said, A6s provide great traction and wear well for the track while Hoosier or Goodyear Bias slicks work very well for autocross. Link to comment Share on other sites More sharing options...
shiva Posted December 19, 2011 Author Share Posted December 19, 2011 Our TimeAttack rules are somewhat different. We are classed as 9 groups 3 tires group (Street, Mod, Race) and each of those in 3 drivetrain group (RWD, FWD, AWD). So Race is race... as long as it's below the defined threadWear, they won't mind. Link to comment Share on other sites More sharing options...
shiva Posted December 19, 2011 Author Share Posted December 19, 2011 My Super Stalker sounds about like your car as far as weight and HP. I use Goodyear R160 22" x 10 x 13 in the rear and 20 x 9.5 x 13 in front. We have only autocrossed on them, but have been very happy with the grip and amount of runs we get on them. With two people driving the car, we put a lot of runs in. 13in tires are easy to find. But in my case, I'm trying to stay in the 15in range. Mostly since otherwise my brakes won't find the wheels Link to comment Share on other sites More sharing options...
jwduncan Posted December 21, 2011 Share Posted December 21, 2011 My vote would be to run Hoosier R25Bs. There are lots of used ones available in 15" from the serious formula car crowd if you don't want to buy them new. Link to comment Share on other sites More sharing options...
shiva Posted December 21, 2011 Author Share Posted December 21, 2011 (edited) My vote would be to run Hoosier R25Bs. There are lots of used ones available in 15" from the serious formula car crowd if you don't want to buy them new. Am I looking at the right place but isn't the R25B are only available in those 15in sizes? 23.0 x 9.5R15 23.5 x 13.0R15 Those are the Formula Atlantic sizes and that's some seriously wiiiiiiiide rubber. and you need 14in wide rear rim! and they are Radial tires... (not that it's a bad thing) Edited December 21, 2011 by shiva Link to comment Share on other sites More sharing options...
jwduncan Posted December 22, 2011 Share Posted December 22, 2011 Yes that's correct, they are FA front tires - 23.0 x 9.5R15 - radials. I run them on 10" wide rims front and rear. Link to comment Share on other sites More sharing options...
DavinceCode10 Posted January 2, 2013 Share Posted January 2, 2013 (edited) Dunlop isn't a bad option either if you will see their competition slicks. VERY, VERY constant wheel. Always use a clean set for real temps, you will get warm into them quicker than a set of decals. If you are having grip problems, look into Davis Traction Management. For warm, if it's permitted, buy some heating bedding. . . . . . . . . Buzz App | Buzz Apps | Twilio Services | SMS Marketing | Wordpress SMS Plugin | SMS Plugin | WP SMS Plugin | Privacy Pro | Wifi Based App | Privacy Pro App Edited October 7, 2016 by DavinceCode10 Link to comment Share on other sites More sharing options...
blubarisax Posted January 14, 2013 Share Posted January 14, 2013 Has anyone had experience with Avon radial slicks? I am currently using Michelin slicks (20/54-13 and 24/57-13) and like them, but shipping is expensive from europe. Link to comment Share on other sites More sharing options...
MichaelD Posted January 15, 2013 Share Posted January 15, 2013 You will also need to consider what the temperature will be when you are using them. A soft compound tier won't make it through a 30 minute track session before they become greasy when it's 90 degrees out. Even my R6s have a hard time in July. A6s are good in the Spring and Fall. If you drive hard I do not feel the Avons have a long life but they are very gripy tires on a Seven. Expect to pay $50 - $60 more per tire over Hoosiers. For Hoosier Bias Ply Slicks the 25 compound spring and Fall the 35 in the summer. If you do not have budget go with the soft compounds an all brands. I tend to ger about eight hard track weekends out of a set of R6s. (3,400+ miles) The Avons only made it through three weekends. Link to comment Share on other sites More sharing options...
Kitcat Posted January 15, 2013 Share Posted January 15, 2013 Michael D: Any chance you meant 300-400 Miles? Otherwise, those are some brutal track days! Link to comment Share on other sites More sharing options...
Croc Posted January 15, 2013 Share Posted January 15, 2013 LOL...and here I am going through a set of Avon CR500s in 2400 miles! :rofl: I never knew slicks could be harder wearing! Link to comment Share on other sites More sharing options...
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