Tread splice info and the Nitto issue

[bigjae1976]

Originally Posted by CanAutM3

Further, IMO, anyone using NT01s to get ultimate lap time are kidding themselves. I find the NT01 is a very good compromise between cost, decent grip, at limit predictability, decent wear and excellent heat cycling resistance. An excellent tire choice for HPDE and the lapping hobbyist. For ultimate lap times, there are better options than the NT01.

Yes. I think the NT01s are like a shaved street tire. But I'm all about cost. I like lap times but I'd rather go slower and drive more. If were to go with something else (I'm not) I would be back on street tires so I can slide and drift more.

[dnvrdrvr]

Originally Posted by Sleeper519

I wanted to update the list again. I looked up dates on all 4 tires + 1 that got replaced in Dec. after 2 track days.

Looks like all the workers at Nitto were drunk in August...

3011 OK arter
3511 OK arter
4511 OK Sleeper519
5211 OK CanAutM3
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4212 OK TI-Jean
4712 Spliced w00tw00t

I bought three sets of 17x255 NT01s for my race season (E36 chassis) and was nervous... Good news is that I ran my first set this past weekend. Their prod date is 4312. No splicing / delamination whatsoever. I ran them hard too - two practice sessions (20 mins), two qualifying sessions (10 mins) and four 30 minute races in GTS3. Took them a full day to scrub in (typical) and by Sunday they were speeding up nicely.

I'm planning to use my remaining supply and will probably be shopping again in August for my trip to N. California in Sept, so it'll be interesting to see how this plays out. Sh*t, maybe I'll just make the jump to Hoosiers...

[CanAutM3]

Originally Posted by dnvrdrvr

I bought three sets of 17x255 NT01s for my race season (E36 chassis) and was nervous... Good news is that I ran my first set this past weekend. Their prod date is 4312. No splicing / delamination whatsoever. I ran them hard too - two practice sessions (20 mins), two qualifying sessions (10 mins) and four 30 minute races in GTS3. Took them a full day to scrub in (typical) and by Sunday they were speeding up nicely.

I'm planning to use my remaining supply and will probably be shopping again in August for my trip to N. California in Sept, so it'll be interesting to see how this plays out. Sh*t, maybe I'll just make the jump to Hoosiers...

List updated:

3011 OK arter
3511 OK arter
4511 OK Sleeper519
5211 OK CanAutM3
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4212 OK TI-Jean
4312 OK dnvrdrvr
4712 Spliced w00tw00t

[w00tw00t]

Nitto is pissing me off.. I'm pasting a email response from Jim at performance Tread.

*********************************************

Jim this is simply not acceptable and I’m appalled at Nitto’s response.

The tire spliced after just one track day – that is a warranty issue, clear as day.

Regardless of which tire I go to – Nitto needs to do the right thing.

If you say this is outside of your control, then please send me the Nitto contact information. I will follow up with them directly.

Thanks
Vivek



From: Jim Platis
Sent: Monday, April 8, 2013 9:35 AM
To: Vivek Kumar
Subject: Re: Nitto NT01 Issue

They are not going to do anything about it, I had a long battle with all of the parties involved. I say you go to a different tire per our discussion. I am really not happy with the as we sell a ton of these tires and I am seriously concerned about my customers as this is a track tire.

Jimmy

[paradocs98]

Originally Posted by w00tw00t

Nitto is pissing me off.. I'm pasting a email response from Jim at performance Tread.

*********************************************

Jim this is simply not acceptable and I’m appalled at Nitto’s response.

The tire spliced after just one track day – that is a warranty issue, clear as day.

Regardless of which tire I go to – Nitto needs to do the right thing.

If you say this is outside of your control, then please send me the Nitto contact information. I will follow up with them directly.

Thanks
Vivek



From: Jim Platis
Sent: Monday, April 8, 2013 9:35 AM
To: Vivek Kumar
Subject: Re: Nitto NT01 Issue

They are not going to do anything about it, I had a long battle with all of the parties involved. I say you go to a different tire per our discussion. I am really not happy with the as we sell a ton of these tires and I am seriously concerned about my customers as this is a track tire.

Jimmy

[OC3]

Just deal directly with Nitto. Their customer service person's contact info has been posted already in this thread.

[warp10]

Have 10 heat cycles in the tires and everything still looking good...knock on wood!

[CanAutM3]

Originally Posted by warp10

Have 10 heat cycles in the tires and everything still looking good...knock on wood!

Are those still the 4112 manufactured tires?

[DallasBoosted]

My 275's are both spliced, they are both 3212. My 255's are both fine, they are 0811.

[CanAutM3]

Originally Posted by DallasBoosted

My 275's are both spliced, they are both 3212. My 255's are both fine, they are 0811.

List updated:

0811 OK DallasBoosted
3011 OK arter
3511 OK arter
4511 OK Sleeper519
5211 OK CanAutM3
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3212 Spliced DallasBoosted
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4212 OK TI-Jean
4312 OK dnvrdrvr
4712 Spliced w00tw00t

[warp10]

Originally Posted by CanAutM3

Are those still the 4112 manufactured tires?

yes they are

[CSBM5]

Originally Posted by DallasBoosted

My 275's are both spliced, they are both 3212. My 255's are both fine, they are 0811.

Which brings up a good point -- are all of the tires people have had issues with 275/35-18 size? (Mine were).

[1MOREMOD]

Originally Posted by CSBM5

Which brings up a good point -- are all of the tires people have had issues with 275/35-18 size? (Mine were).

yes mine were also. think that most are the 275s

[OC3]

Mine too.

[DallasBoosted]

Originally Posted by CSBM5

Which brings up a good point -- are all of the tires people have had issues with 275/35-18 size? (Mine were).

No, mine are 275/40-17's.

[w00tw00t]

yep mine are also 275 35 18

[dan avoN7]

Set of (4) 275/35/18, production date "5211". Tires were great and I ran them until they started to cord, no splicing at all.


List updated:

0811 OK DallasBoosted
3011 OK arter
3511 OK arter
4511 OK Sleeper519
5211 OK CanAutM3
5211 OK DanAvoN7
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3212 Spliced DallasBoosted
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4212 OK TI-Jean
4312 OK dnvrdrvr
4712 Spliced w00tw00t

[dawgdog]

My 245/40/18 on my Porsche are fine so far and there are no complaints in Rennlist about this problem. I wonder if the problem is with 275 width tires. My tires are 4112.

[CanAutM3]

Originally Posted by dawgdog

My 245/40/18 on my Porsche are fine so far and there are no complaints in Rennlist about this problem. I wonder if the problem is with 275 width tires. My tires are 4112.

List updated:

0811 OK DallasBoosted
3011 OK arter
3511 OK arter
4511 OK Sleeper519
5211 OK CanAutM3
5211 OK DanAvoN7
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3212 Spliced DallasBoosted
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4112 OK dawgdog
4212 OK TI-Jean
4312 OK dnvrdrvr
4712 Spliced w00tw00t

[sleepless]

Originally Posted by Bubbles

This is happening to my new NT01s (one track day) as well. I have had more than 10 sets and have never had this issue. Sounds like they have changed their design.

I guess I have to switch to another brand. Too bad I like the tire and have used it for years

I've seen this issue several times since starting to use nt01's in 2006 and have just kept driving on the tires; never had them separate from the tire. It helps a lot to rotate the tires frequently.

[Car54]

0811 OK DallasBoosted
3011 OK arter
3511 OK arter
4511 OK Sleeper519
5111 OK Car54
5211 OK CanAutM3
5211 OK DanAvoN7
3212 Spliced ortho281
3212 Spliced Sleeper519 (3 of these spliced, 1 still OK)
3212 Spliced OC3
3212 Spliced DallasBoosted
3412 Spliced CSBM5 (Guessing from Aug-12)
3512 Spliced 1MOREMOD
3612 Spliced RickyBobby
4112 OK warp10
4112 OK dawgdog
4212 OK TI-Jean
4312 OK dnvrdrvr
4712 Spliced w00tw00t

List updated

[paradocs98]

Just finished two-day event with the new Toyo Proxes RR. So far, so good. Mounted them using Toyo's recommended orientation to avoid the tread splice opening up, and rotated them diagonally for day two. 10 heat cycles and looking good. Stickier than the Nitto NT01s, and less noisy, but they still chirp/squeal a bit as you approach the limit.