nt01 safe max speed?
#21
#22
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
Joined: Oct 2014
Posts: 10,133
Likes: 3,303
From: Northern California
OK, back on topic.... sorry for the derailment.
Garage so full, gots car parts living in my car!
#24
Joined: May 2002
Posts: 8,459
Likes: 1,313
From: Aurora, Colorado
Sorry to be late to the party, but having some experience with NT01s at the track and traveling past a buck and a half, I have only one comment. The speed rating of your NT01s is one of the LAST things you have to worry about. There is NO safety driving at 160MPH--all it takes is an unseen pothole, a tack or sharp shard left in the roadway or some other unforeseen obstacle--and you and your G/Z are history. Safety in regard to the title of this post has little meaning.
#25
There's a really off-color comment regarding what one does with their imagination in private; but being that I'm a gentleman and in mixed company, I'll let your own mind travel down into the gutter.... imagine that.
OK, back on topic.... sorry for the derailment.
Garage so full, gots car parts living in my car!
OK, back on topic.... sorry for the derailment.
Garage so full, gots car parts living in my car!
Life goals right there.... being able to turn your other car into a secondary garage haha
#26
One good thing to know that a club guy showed me when my car was new is the "code" on the side wall of each tire that shows the week/month/year that the tire was made.
Good to know because I don't want to buy brand new, but 5 year old tires that have been sitting around in a warehouse. I could take a pic of that code, but I'm lazy right now. As far as speed ratings, I have always gone with W and Y rating; a little security (at least in my mind) over Z and lower speed ratings. I've been up there in the high speed zone several times; doesn't happen too often but still if you have 2-3 brands/models that you are considering, I'd take the W/Y speed rating and fairly newly manufactured tires.
Good to know because I don't want to buy brand new, but 5 year old tires that have been sitting around in a warehouse. I could take a pic of that code, but I'm lazy right now. As far as speed ratings, I have always gone with W and Y rating; a little security (at least in my mind) over Z and lower speed ratings. I've been up there in the high speed zone several times; doesn't happen too often but still if you have 2-3 brands/models that you are considering, I'd take the W/Y speed rating and fairly newly manufactured tires.
Last edited by BigBlue; 08-11-2015 at 09:01 AM.
#28
MicVelo, my complaining about people's attitudes wasn't addressed to you- I thought your response was well put and informative.
And as to whether my car can go 160 or not, I don't care. The mods I listed were meant to show the car has handling/braking capacity above stock, making it a bit safer at high speeds. Frankly, I don't much care how fast my car goes at the top- I enjoy lateral acceleration 20x more, and can experience plenty of that at low speeds.
And as to whether my car can go 160 or not, I don't care. The mods I listed were meant to show the car has handling/braking capacity above stock, making it a bit safer at high speeds. Frankly, I don't much care how fast my car goes at the top- I enjoy lateral acceleration 20x more, and can experience plenty of that at low speeds.
#33
Joined: May 2002
Posts: 8,459
Likes: 1,313
From: Aurora, Colorado
Predictably, the answer will be "do not exceed the product's speed rating for any reason". Why? There's not a tire company in the country that would accept the increased liability in such a pronouncement.
However, I also thought of another reason Nitto wouldn't want the NT01 on a high-speed run. Tire compounding for a relatively soft, max traction tire like the NT01 could result in the tire rapidly overheating and having durability issues. Take a look at this photo of my BFGoodrich G-Force R1-S tire (LF after a recent race) with less than 300 miles on it:
R1s
Max velocity at the end of the straights was "only" 120-124 MPH each lap, but 4/32nds isn't much to work with on an R-compound tire. What's more, even if the tire didn't fail, would the OP really be willing to let his new tires look like this after a few short miles?
However, I also thought of another reason Nitto wouldn't want the NT01 on a high-speed run. Tire compounding for a relatively soft, max traction tire like the NT01 could result in the tire rapidly overheating and having durability issues. Take a look at this photo of my BFGoodrich G-Force R1-S tire (LF after a recent race) with less than 300 miles on it:
R1s
Max velocity at the end of the straights was "only" 120-124 MPH each lap, but 4/32nds isn't much to work with on an R-compound tire. What's more, even if the tire didn't fail, would the OP really be willing to let his new tires look like this after a few short miles?
#34
Yes, it's Z Rated. Quoting from tirerack:
"When Z-speed rated tires were first introduced, they were thought to reflect the highest tire speed rating that would ever be required, in excess of 240 km/h or 149 mph. While Z-speed rated tires are capable of speeds in excess of 149 mph, how far above 149 mph was not identified."
My G can do 160. I don't spend much time up there, but do I need to worry about them flying apart at that speed?
"When Z-speed rated tires were first introduced, they were thought to reflect the highest tire speed rating that would ever be required, in excess of 240 km/h or 149 mph. While Z-speed rated tires are capable of speeds in excess of 149 mph, how far above 149 mph was not identified."
My G can do 160. I don't spend much time up there, but do I need to worry about them flying apart at that speed?
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