Hoosiers R6s........heat cycles......
03-13-2009, 02:36 PM
#46
Drifting
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At BWMCCA CR the front runners in IP use 2 sets per weekend 1 new set for each race/qual/practice and new pads for the weekend. I used One set of last race's R6s for practice A6s for qual and new R6s for race. No way to be competitive in IP without that set up. The pace is lightning quick
03-13-2009, 02:37 PM
#47
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They are not going to make me too fast, for my already faster car, are they?.......
Thanks for the input Bob......I hope to see you up there this summer......
03-13-2009, 02:45 PM
#48
You're not ready for slicks. You can seriously hurt yourself.
Plus, there is a lot of BS with slicks. If they go below 40degF you have to throw them away. You can't expose them to extended UV light - no open trailers, etc... Unless you're seriously racing, it's not worth the pain.
I ran my M3 in HP @3200lbs all last year on R6s and came 3rd in the championship. I think I used 2 or 3 sets for the whole year. I don't know how these IP guys are burning up so many tires. It could be their driving style.
I agree new Hoosiers are a lot better than old Hoosiers. But I was getting at least 15-25 heat cycles out of them at 3200lbs race weight. 245/35-18. I would say the first 8 heat cycles were very good and the rest were fine for practice.
Not that the car is 2400lbs, I am still using my old ones for practice. I can't seem to kill them. Some have over 40 cycles on them. I ran Barber in November on a cold day (in the 50s and 60s) and my practice times with 30 cycle R6s was the same as my qualifying and race time on Pirelli DM slicks.
So there's more to this tire thing than just buying the best stuff.
Plus, there is a lot of BS with slicks. If they go below 40degF you have to throw them away. You can't expose them to extended UV light - no open trailers, etc... Unless you're seriously racing, it's not worth the pain.
I ran my M3 in HP @3200lbs all last year on R6s and came 3rd in the championship. I think I used 2 or 3 sets for the whole year. I don't know how these IP guys are burning up so many tires. It could be their driving style.
I agree new Hoosiers are a lot better than old Hoosiers. But I was getting at least 15-25 heat cycles out of them at 3200lbs race weight. 245/35-18. I would say the first 8 heat cycles were very good and the rest were fine for practice.
Not that the car is 2400lbs, I am still using my old ones for practice. I can't seem to kill them. Some have over 40 cycles on them. I ran Barber in November on a cold day (in the 50s and 60s) and my practice times with 30 cycle R6s was the same as my qualifying and race time on Pirelli DM slicks.
So there's more to this tire thing than just buying the best stuff.
03-13-2009, 03:09 PM
#49
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Thread Starter
Peter, thanks for the great info. regarding the slicks......but I hope you are not confusing me with the guy w/o LSD and a spinning habit.....
As far as me getting slicks, that was an inside joke with Bob R. who thought I was ready for R6s at Rennsports events last year......
As far as me getting slicks, that was an inside joke with Bob R. who thought I was ready for R6s at Rennsports events last year......
03-13-2009, 03:30 PM
#51
Drifting
I love the "Replace When Cords Show" response. There is some truth to that.
I've gotten upward of 25 heat cycles out of a set with obvious deteriation of adhesion post 15 or so.
The bottom line is if you can afford the $1100 per set per race, god bless you but you'll find most drivers use the worn one's for practice and stretch the good one's for qualifying and the race.
As for cording, I've been unable to see the cords the way the old Hoosiers would come apart. I have seen the cords after a good spin.
I've gotten upward of 25 heat cycles out of a set with obvious deteriation of adhesion post 15 or so.
The bottom line is if you can afford the $1100 per set per race, god bless you but you'll find most drivers use the worn one's for practice and stretch the good one's for qualifying and the race.
As for cording, I've been unable to see the cords the way the old Hoosiers would come apart. I have seen the cords after a good spin.
03-13-2009, 05:31 PM
#52
Burning Brakes
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Victor and Pete, I only talk about spinning, because if I don't there are a coupe of r-listers who keep ribbing me about it. I've been on the tracking, instructing and racing for a while, and yes when setting up a new car have been known to loop it.
I spent a lot of time in a narrow bodied S with a 3 liter, land earned how to control it very well with the right mix of steering and throttle. When I moved up the the 996 last year the power increase was huge. I'm spending the year getting the feel & control back before masking it with a diff. Street tires are not going to help me in a club race, and I am quickly learning beter tire managment skills as it is.
I'm doing all the things I have my students do to learn new cars, I am just doing it in race conditions, not DE. I'm pretty quick in the car considering how few hours I have in it, and again, trying to learn it better before adding performance mods to it. I still have a long way to go to max out the car.
I spent a lot of time in a narrow bodied S with a 3 liter, land earned how to control it very well with the right mix of steering and throttle. When I moved up the the 996 last year the power increase was huge. I'm spending the year getting the feel & control back before masking it with a diff. Street tires are not going to help me in a club race, and I am quickly learning beter tire managment skills as it is.
I'm doing all the things I have my students do to learn new cars, I am just doing it in race conditions, not DE. I'm pretty quick in the car considering how few hours I have in it, and again, trying to learn it better before adding performance mods to it. I still have a long way to go to max out the car.
03-13-2009, 06:43 PM
#54
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03-13-2009, 07:31 PM
#55
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03-13-2009, 07:44 PM
#56
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Actually, he and the other guys at Hoosier will be very helpful and speak to you in real language that racers use. they have been very helpful to me and many others.
03-13-2009, 09:26 PM
#58
Burning Brakes
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