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Old 06-16-2009, 07:48 AM   #1
purduephigam
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Default Road Coursing and Star Spec Tread

We'll she's finally track ready and I broke it in at the Autobahn in Joliet, IL. I have some brand spankin' new Dunlop 235/40/17 Star Specs at the moment and am a little concerned with the tread after an afternoon at the track. It looks like I did some tire melting and some of it ended up in the actual tread (making them appear pretty worn out). I just wanted some opinions on actual tread wear so I know I just didn't burn through a brand new set of tires.......or did I? Thanks.
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Old 06-16-2009, 10:35 AM   #2
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Did you start with full tread or did you have them shaved?
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Old 06-16-2009, 06:06 PM   #3
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Full tread. I think I just chunked them up pretty good.
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Old 06-16-2009, 06:11 PM   #4
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oh dang
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Old 06-16-2009, 09:57 PM   #5
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did you even heat cycle them first???

bad juju
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Old 06-17-2009, 07:50 PM   #6
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Quote:
Originally Posted by Uncle Scotty View Post
did you even heat cycle them first???

bad juju
I don't even know what that is. I suppose this thread could have a bit more constructiveness if I had included pictures, but does anyone have any insight other than saying 'oh dang' or 'bad juju'?
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Old 06-17-2009, 09:27 PM   #7
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Quote:
Originally Posted by purduephigam View Post
I don't even know what that is. I suppose this thread could have a bit more constructiveness if I had included pictures, but does anyone have any insight other than saying 'oh dang' or 'bad juju'?


tracking the car

dont know anything about doing THAT

d000000000000d

you are on the road to death and disaster if you dont avail yourself of some competent help

sorry....but if you dont educate yourself on what it REALLY takes to track your car...you WILL crash hard.

I promise....and maybe die or kill someone else in the process
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Old 06-17-2009, 09:58 PM   #8
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Quote:
Originally Posted by Uncle Scotty View Post


tracking the car

dont know anything about doing THAT

d000000000000d

you are on the road to death and disaster if you dont avail yourself of some competent help

sorry....but if you dont educate yourself on what it REALLY takes to track your car...you WILL crash hard.

I promise....and maybe die or kill someone else in the process
Damn, all the doom and gloom in this thread makes me think i'm watching the news.
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Old 06-17-2009, 10:08 PM   #9
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Originally Posted by emo_tactical9 View Post
Damn, all the doom and gloom in this thread makes me think i'm watching the news.
I wouldnt want to be on the track and have some idiot rookie punt me into the armco because he made some stupid rookie mistake

not knowing that tracking full tread deapth, un heatcycled tires would chunk the **** outa them is a total ****ing rookie mistake that is 100% avoidable
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Old 06-17-2009, 10:38 PM   #10
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Quote:
Originally Posted by Uncle Scotty View Post
I wouldnt want to be on the track and have some idiot rookie punt me into the armco because he made some stupid rookie mistake
Oh the drama!

What type of track day are you assuming? When are rookies and pros like yourself together on the track?

The ones I've been to are controlled instructor events with 3-4 levels of experience that use the track one group at a time.
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Old 06-17-2009, 10:53 PM   #11
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Quote:
Originally Posted by Uncle Scotty
I wouldnt want to be on the track and have some idiot rookie punt me into the armco because he made some stupid rookie mistake

not knowing that tracking full tread deapth, un heatcycled tires would chunk the **** outa them is a total ****ing rookie mistake that is 100% avoidable
ORLY? My RE01R's were at full tread depth and had only been driven on the street (not truly heat cycled) and they did not chunk.

OP, pictures are needed. Some of that might be race rubber picked up into your treads. That happens to my tires at the track when its shared with guys running race rubber.
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Old 06-17-2009, 11:00 PM   #12
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Quote:
Originally Posted by Robbie_B View Post
ORLY? My RE01R's were at full tread depth and had only been driven on the street (not truly heat cycled) and they did not chunk.
is NOT

Quote:
brand spankin' new
and yes, it would make a difference

especially if the alignment and the rest of the setup was done properly...which I HIGHLY doubt the OP has or did
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Old 06-18-2009, 07:58 AM   #13
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Quote:
Originally Posted by Uncle Scotty View Post
is NOT



and yes, it would make a difference

especially if the alignment and the rest of the setup was done properly...which I HIGHLY doubt the OP has or did
Wow man, you make a lot of assumptions. And obviously have a lot of free time...

I apologize for not painting a better picture for you so that you wouldn't have to resort to your cheesy and dim-witted responses. Although I'm sure you'll find another way to puff out your chest and act like the big-bad poster you really are.

I have a good friend who manages a race team at the Autobahn (Team Stradale if you question the credentials). This was a long process. I had the suspension installed in February, then an alignment and corner balance the same day, Scott. I also left them with my summer wheels and tires to be properly mounted and balanced. I came back in April for the wheel swap, suspension tune, and yes, another alignment and corner balance. Then it was driven about every day until I took it back to the course.

And this same friend of mine gave me half his afternoon to teach me about the track and racing. I had a crash course on the flags prior, and then spoke to track officials about my being there. Not once was I ever on the track alone. So yes, I was a rookie, but had a legitimate pro in the seat next to me coaching me through each turn, waiving on faster cars, etc. You really think I'm completely comfortable on the track with veteran GT3, Exige, Elise, and Beamer drivers out there? Even if I had the option to be out there alone, I wouldn't even think about it until I had at least 2 or 3 more lessons with him. And as far as hitting walls, crashing, it's really almost impossible as long as you know and follow the proper lines - and that's even if the flaggers don't already call you off the track for being a meatball.

So I guess we're back to my original question, did I hurt my tires enough to think about a new set before the season is over? I don't plan on tracking my car any more than once before the season is over - otherwise I'd think about having a spare set of track wheels/tires. Other than Scotty's asinine comments/concerns/remarks, is there anyone else who could contribute something constructive to this thread so I at least have a better idea about my tire situation?
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Old 06-18-2009, 08:04 AM   #14
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Quote:
Originally Posted by Robbie_B View Post
ORLY? My RE01R's were at full tread depth and had only been driven on the street (not truly heat cycled) and they did not chunk.

OP, pictures are needed. Some of that might be race rubber picked up into your treads. That happens to my tires at the track when its shared with guys running race rubber.

I'll try and snap some pics this weekend. But I think that it is what you mentioned, just burned rubber picked up in the tread. I suppose if it doesn't fall out on it's own, i'll just pick the pieces out.
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Old 06-18-2009, 09:26 AM   #15
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We used 245 40 17 Dunlop star specs on our One Lap of America car at full tread depth and had no issues with them chunking at any point. We have noticed that the tread is extremely soft and seems to "flow" when it gets really hot causing it to fill small voids. Pretty interesting really. That being said, I think they are probably fine and wouldn't worry about it too much.

Tony
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Old 06-18-2009, 11:29 AM   #16
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Quote:
Originally Posted by purduephigam View Post
Wow man, you make a lot of assumptions. And obviously have a lot of free time...

I apologize for not painting a better picture for you so that you wouldn't have to resort to your cheesy and dim-witted responses. Although I'm sure you'll find another way to puff out your chest and act like the big-bad poster you really are.

I have a good friend who manages a race team at the Autobahn (Team Stradale if you question the credentials). This was a long process. I had the suspension installed in February, then an alignment and corner balance the same day, Scott. I also left them with my summer wheels and tires to be properly mounted and balanced. I came back in April for the wheel swap, suspension tune, and yes, another alignment and corner balance. Then it was driven about every day until I took it back to the course.

And this same friend of mine gave me half his afternoon to teach me about the track and racing. I had a crash course on the flags prior, and then spoke to track officials about my being there. Not once was I ever on the track alone. So yes, I was a rookie, but had a legitimate pro in the seat next to me coaching me through each turn, waiving on faster cars, etc. You really think I'm completely comfortable on the track with veteran GT3, Exige, Elise, and Beamer drivers out there? Even if I had the option to be out there alone, I wouldn't even think about it until I had at least 2 or 3 more lessons with him. And as far as hitting walls, crashing, it's really almost impossible as long as you know and follow the proper lines - and that's even if the flaggers don't already call you off the track for being a meatball.

So I guess we're back to my original question, did I hurt my tires enough to think about a new set before the season is over? I don't plan on tracking my car any more than once before the season is over - otherwise I'd think about having a spare set of track wheels/tires. Other than Scotty's asinine comments/concerns/remarks, is there anyone else who could contribute something constructive to this thread so I at least have a better idea about my tire situation?


jesus christ....all that overqualified help for your situation and you still came here to ask about the tires
and just because your mentors know other cars does not mean they know **** about tracking a subaru


there have been cases where an overheated tire chunks on a long straight and unbalances enough to shred the tire and cause a crash

maybe the star specs just melt and dont actually chunk out

and tracking brand new street tires at full tread depth is not advisable
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Old 06-18-2009, 02:22 PM   #17
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you may have jsut picked up some of the marbles ... pictures?
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Old 06-18-2009, 06:18 PM   #18
mmiller2002
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I HPDE'd my new Kumho XS' with no ill effects. Some wear for sure, but no chunking and stuff. Depends on the tire I think. Not everyone is going to shave tires for a few HPDEs a year.
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