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      03-06-2013, 10:15 PM   #67
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I can't believe how common this issue is.
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      03-06-2013, 10:38 PM   #68
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holy shit guys.. i just bought NT01 and just saw this thread.. Nittttttooooo! GAAARRR!
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      03-07-2013, 01:19 AM   #69
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holy shit guys.. i just bought NT01 and just saw this thread.. Nittttttooooo! GAAARRR!
just go slow. they wont open up.
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      03-07-2013, 03:59 AM   #70
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Just go slow? On a track?
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      03-07-2013, 07:48 AM   #71
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Well, I'll find out soon I guess..... my R888's are on the way via UPS right now. I actually found the NT01s to get very greasy as well so will be interesting to feel the differences between the 2. I could go all out about 15 minutes on NT01's, then the rest of the session i had to go somewhat easy as they slid all over the place.

I know i should probably step up to real slicks but I liked the NT01 cause they gave me decent grip at a decent price and they would last me pretty much a whole season if I flipped them on the rims one time. I guess if the R888's suck i'll move on and try something else.
I find the NT01s to be quite stable in terms of grip. Maybe you are running a bit too high pressure wise... What hot pressure do you target?
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      03-07-2013, 10:46 AM   #72
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I saw a thing on tire rack about splices and toyo tires a few days ago. Interesting read and basically it says the splice is normal. You do have to rotate/flip the tires to prevent the splice from getting larger.

I drove with the splice but it got to the point where there was a chunk missing...had to toss them. i think the chunks were ripped off after running over some curbs.

I've heard some people getting tires replaced from splicing/chunking.
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      03-07-2013, 10:50 AM   #73
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Also, discount tire tacks on sales tax which is more than shipping.

$1035 shipped from Performance Tread...beats discount tire
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      03-07-2013, 10:54 AM   #74
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Quote:
Originally Posted by CanAutM3 View Post
I find the NT01s to be quite stable in terms of grip. Maybe you are running a bit too high pressure wise... What hot pressure do you target?
I tried running different pressures to see which worked best. Highest i ever ran was around 40 to 42 hot.
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      03-07-2013, 11:08 AM   #75
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Quote:
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I tried running different pressures to see which worked best. Highest i ever ran was around 40 to 42 hot.
i shoot for 41 front and 40 rear hot. sometimes overshoot that after too many laps but havent noticed it make this problem worse.
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      03-07-2013, 11:27 AM   #76
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I put a new pair on the front. I've been running 32-35psi hot...no issues so far.
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      03-07-2013, 11:39 AM   #77
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Quote:
Originally Posted by bigjae1976 View Post
I put a new pair on the front. I've been running 32-35psi hot...no issues so far.
are you starting sessions with 20lbs?
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      03-07-2013, 11:40 AM   #78
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Quote:
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I put a new pair on the front. I've been running 32-35psi hot...no issues so far.
are you starting sessions with 20lbs?
25-26
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      03-07-2013, 11:50 AM   #79
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okay thats still pretty low for your out laps. i usually start around 31-32 and im in lower temps than you. still come up over 10 lbs.
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      03-07-2013, 12:34 PM   #80
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wow, I just found this thread, had no idea of this issue. I've been running NT01s for 2.5 seasons and never had a problem with several sets.

BTW, I start at 28/29 and shoot for 38 hot. Works well for a 20-25min session.
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      03-07-2013, 12:47 PM   #81
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Quote:
Originally Posted by bigjae1976 View Post
Also, discount tire tacks on sales tax which is more than shipping.



$1035 shipped from Performance Tread...beats discount tire
I paid $1,216.11 with heat-cycling shipped. I went with Discount Tire because they could get tires to me in 1 day. Do Performance Tread also do heat-cycling?

Quote:
Originally Posted by SpiralOut View Post
I tried running different pressures to see which worked best. Highest i ever ran was around 40 to 42 hot.
That's a bit high for the NT01's. I shoot for 35-37 hot.

Quote:
Originally Posted by 1MOREMOD View Post
i shoot for 41 front and 40 rear hot. sometimes overshoot that after too many laps but havent noticed it make this problem worse.
^ Try lower pressures. You will find they don't drop off during long sessions.

Quote:
Originally Posted by bigjae1976 View Post
I put a new pair on the front. I've been running 32-35psi hot...no issues so far.
I guess I'm right in the middle running 35-37 hot.

Quote:
Originally Posted by bigjae1976 View Post
25-26
I start with 29 cold and adj from there to around 35-37 hot. I usually have to keep bleeding off as they heats up and heat soak sets in.

Quote:
Originally Posted by 1MOREMOD View Post
okay thats still pretty low for your out laps. i usually start around 31-32 and im in lower temps than you. still come up over 10 lbs.
Tires will come up a little more in colder weather as heat soak sets in.
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      03-07-2013, 01:08 PM   #82
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Performance tread does heat cycle. My hot pressures are based on tire temp data. I was running lower and my center section of the tires were running cold. For me I have the feeling they come on later in the session not fall off?
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      03-07-2013, 03:51 PM   #83
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Quote:
Originally Posted by bigjae1976 View Post
... I've been running 32-35psi hot...no issues so far.
Quote:
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25-26
^^+1
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      03-07-2013, 05:17 PM   #84
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I've called NITTO, they said heat cycling is not needed. So I don't bother. The last two I finished lasted 2 wet days and 6 dry days which is about normal considering how much sliding I do. I only corded one on the right rear. If I had rotated sooner I could have gotten another day. No heat cycling...
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      03-07-2013, 05:47 PM   #85
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Quote:
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I've called NITTO, they said heat cycling is not needed. So I don't bother. The last two I finished lasted 2 wet days and 6 dry days which is about normal considering how much sliding I do. I only corded one on the right rear. If I had rotated sooner I could have gotten another day. No heat cycling...
I heat cycled this new set to see if it would make a difference with the tread splicing. but from what others have said on here, it may not. I have 5 dry days and 1 wet day (12 sessions total) on my current set. And seeing as though I have at least another day left, that is similar to the tread life you are seeing.

Because of the tire splicing on 3 out of 4 tires, I will be cautious and swap out tires before this weekend!
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      03-08-2013, 10:34 AM   #86
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I would like to hear what tracks this is happening at. I think the track surface and its condition plays a role in the splicing.
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      03-08-2013, 11:21 AM   #87
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Quote:
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I would like to hear what tracks this is happening at. I think the track surface and its condition plays a role in the splicing.
could be my first day was at pacific raceways which has a very rough surface although my second day was at the ridge and that is a brand new surface that is perfect.
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      03-08-2013, 12:05 PM   #88
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I would like to hear what tracks this is happening at. I think the track surface and its condition plays a role in the splicing.
As you already know for me MSRH and MSRC. Splicing first showed up 3rd day at MSRH.
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