ccj

Nothing specific came up in a search.

C5 Z06 (stock size wheels) 275/40 17 F, 315/30 18 R
I have 6 total track events on them.
4 trips back and forth to the track (about 52 miles roundtrip)
2 trips back and forth to the track (about 360 miles roundtrip)

The rears def. look like they have a track day left in them. The fronts there is no tread left, and only a hint of the holes towards the outside lip.

I am debating whether to buy new tires and scrap the old ones, or run one more track day.

My reluctance to go ahead and get new tires is the same issue I had last year. I will do 1 or 2 more events this season before the tires get put away till next March/April.

Thoughts?

L98Terror

I have like 50 heat cycles on mine, maybe 15 track days and a bunch of aucto crosses.

Flip them inside out and you should be good for another season.


They go way past not showing tread.

ccj

I understood that the NT-01 tires were multi-directional, but had a clear inside and outside (tire says this side out) and could not be swapped on the rim.

If this is untrue, and the tires can be swapped on the rim... I would concur I could get a few more events out of them for sure.

Thanks for the input.

varkwso

They can be swapped and the tread can actually be shaved off - I had to shave 2 when they got flat spotted at CMP when I had ABS issues...

I have 5 trackdays on them and they still stick fine...

L98Terror

I've swapped mine with no issues

rcr162

I think the front tires were about $250 each, or $500 for the pair. Cost per track day for those front tires is $500/7 or $71. So the most you can lose by replacing them now rather than squeezing one more day out of them is $71. On the other hand, how unhappy will you be if they don't last through the day, or the weekend? In those situations, my choice is to buy a new set and enjoy not having to worry about it. It's like when you were a kid, and you got a new pair of sneakers even though the old ones weren't quite worn out yet. You just feel good with new shoes.

L98Terror

I always waited till my wife or mom threw my old sneakers away because they were falling apart.


If you can't see cords they are good for at least two sessions

varkwso

I run them to the cord - but I have multiple sets of wheels - so will most people who get the addiction. Between digging out the pads with the most "pad" and tires with the most "life" I keep myself fairly busy in the paddock...

Unless you are running competition where I have been beat by .017 seconds - run them to the cord unless you have a big tire budget...

You will be great in the wet if you do...

Tourmgr1

Mine won't wear out ....

Quicksilver Z06

I had the 555RII's which lasted 8 road course events and 2500 street miles. Didn't see cords, but recently put the NT01's on.

I have 1 track day on them, and have 2 comments: 1. The NT01's seem to wear better than the 555RII's for the first track event, 2. The NT01's stick much better.
(Both sets of tires had their first day at Moroso)

I am projecting 10 events out of the them.

varkwso

loan them to L98Terror for a session...

BQuicksilver

7 hard days here on NT-01's and I'm sure they have at least 3 more in them.

outnumbered

6 track days, about 3,000 miles and over 50 heat cycles.

I still have some tread left and plenty of rubber left.

They still seem to stick pretty good.

I think it may be the bang for the buck track tire.

Dan

varkwso

I paid $197 for 275/40-17 and $225 for 315/35-17 delivered (Discount Tire) - best deal on track tires I have available to me at the moment. They are also a 5 point tire in NASA instead of a 10 point tire.

They do not stick as well as new Kumho 700's or Hoosier R6s but they seem to stick better longer..

L98Terror

What's that supposed to mean

varkwso

I have absolute and utter faith in your ability to wear "any" tire down

I am probably going to convert over to NT-01's for my TTA cars also....

L98Terror

I actually just order a set of Hankooks 214s, that was before I head about the GRM article, I hear the NT-01s did very well, especially for a 5 pt tire.

Hopefully I'll get my issue tomorrow

varkwso

I heard the same thing about the GRM article. Mine, also, has not arrived yet.

Guess I will be reading another car mag on my flights to Chicago this AM...

2K3Z06

Are there any rubbing/clearance issues with NT-01 315-18 on stock rims? TIA

L98Terror

Not in the rear