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Heat cycle Hoosiers?


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Posted

I'm about to get some R6's I looked at the break-in procedure and its kind tedious and hard for me to do

if I order them heat-cycled is that as good as doing the break-in on the track?

Posted

Depends on how long you plan to use them. Info I got from others at the last event is (evidently) Hoosier has changed their recommended break in procedures and now instead of letting them rest for 24 hours after scrubbing they should rest a full week!

 

Personally I don't notice as much of a fall off in performance after ~12 heat cycles as some here do. I used to scrub and let them rest a day, but it's not worth it to me anymore so I just go out and run whatever is on at the time. I haven't done it in a long time and my Hoosiers from last year (6 mo's between races) were still very good.

Posted

Never heat cycled, never will. Put em on as stickers.

Posted

I had a hard time finding the place/time to scrub in my first set. I talked with Phil of PhilsTireService and he said it's not a necessary thing, it just makes them last longer.

  • 3 weeks later...
Posted
Never heat cycled, never will. Put em on as stickers.

 

I am with Ian on this one.

  • 2 weeks later...
Posted

I go for a spirited ride around the block and then let them sit a day. Although if your car is not street legal that would make it harder.

Posted
I go for a spirited ride around the block and then let them sit a day. Although if your car is not street legal that would make it harder.

 

Thats make all that much more fun!

  • 1 month later...
Posted

I ran R6's at the NASA Championships and asked about heat cycling like Tirerack.com offers and he said that Hoosier does not recommend it. He said only on the track heat cycling works and that if they sit for a week or more after the warmup cycle that is best. Also it is very bad to lock up the tires or spin the car during that first heat cycle track session. He stated that the advantage to on track heat cycling is seen in greater consistency/speed after 6 or more track sessions. He also recommended against going out and torturing the tires in the first heat cycle on the track especially.

  • Members
Posted

Never do it and just turned a 209@vir on 10hc r6s.

Posted
He also recommended against going out and torturing the tires in the first heat cycle on the track especially.

 

that's my technique

Posted

I might take them out on the road for a bit don't suppose it could hurt

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Posted
I might take them out on the road for a bit don't suppose it could hurt

 

I doubt you'll get them up to full operating temps on the road (safely), lol. And you dont want a nail in a brand new Hoosier, that would suck

Posted

Here's my real world impression.

 

R6's

If you heat cycle them and let rest for an extended period of time they seem to last much longer.

They are really fast the first, maybe second time you run them. After that point they are fast for a pretty long time.

You can run them uncycled with success, but they just seem to wear faster.

 

A6's

No need to heat cycle them. Rough them up a little in the parking lot or take a warm-up lap and they are good to go. All you need to do is scrub off the mold release.

They are very fast for a couple laps. They stay very fast for 4-6 heat cycles before they start to go away.

After 2-3 laps they get a little greasey and slow.

 

So, since we are in the TT forum I would tell you if you want to win you need to run A6's or A6's or maybe A6's.

Posted
Here's my real world impression.

 

R6's

If you heat cycle them and let rest for an extended period of time they seem to last much longer.

They are really fast the first, maybe second time you run them. After that point they are fast for a pretty long time.

You can run them uncycled with success, but they just seem to wear faster.

 

I've no experience with A6s, but I've been going through my notes on the R6s and just wanted to point out that, not surprisingly, YMMV.

 

My fastest lap at nationals this year was on my "practice tires", R6s, that had 15 heat cycles on them. Go figure, but I've had that experience before and set a local track record on a set that had 12 heat cycles. I've tried both the heat cycle-rest treatment as well as just run 'em hard right out of the box. Initially I thought I was seeing the same thing you mention, that if they're rested they last longer, but now (with a few more sets having cycled through), I'm not so sure. I'd carefully cycled and rested (in darkened, air-conditioned comfort) a set for nationals, but the set with 15 cycles wound up ultimately being faster. This was an accidental discovery that probably had something to do with the driver as well. The "carefully rested" set is now toast after just 12 heat cycles. My old practice set, which were never rested and now have 16 HCs on them, probably have a few sessions left in them still.

 

I think what this means is that there may be a lot of other factors that influence the longevity of the R6s beyond whether they'd gotten rested after the initial heat cycle or not. I wish I could say I've completely figured out the formula, but I think what's becoming evident is that the type of car and a lot of other things may be bigger factors.

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