Tire wear at the track

dparm · 05-01-2019, 03:54 PM

Quote:

Originally Posted by dbyrd

Damn, James, I can't get more than 4 days out of NT01s, and I know you like to slide as much as I do. What does your e46 weigh now? My car's at around 3550 + 220 with driver.

Hope to see you on the 3.1 this weekend.

You guys blew off NASA Texas at COTA for MSR? Boo.

kyippee · 05-01-2019, 04:38 PM

Yea.. I get 6-7 days out of NT01s, with each day being 4-5 sessions. Full weight car and -3.5 F and -2.0 R camber.

bigjae1976 · 05-01-2019, 07:29 PM

Quote:

Originally Posted by dbyrd

Quote:

Originally Posted by bigjae1976

Case in point, I can get the same 7-9 days from NT01s as everyone else.

Damn, James, I can't get more than 4 days out of NT01s, and I know you like to slide as much as I do. What does your e46 weigh now? My car's at around 3550 + 220 with driver.

Hope to see you on the 3.1 this weekend.

You mean the 1.7?

That was when my car was 3000ish pre-cage.

I put 7 day used/5 year old NT01s on my front axle at 2700 lbs. I got 7 more days out of them! My tire wear now is like none. It's fantastic!

Rassilon · 05-02-2019, 03:45 PM

I recommend ad08r if you are looking for durability and not ultimate grip. They can handle a tons of abuse and wear a lot slower than any of the 200 tw cheater tires.

Dreamer99 · 05-02-2019, 07:40 PM

Quote:

Originally Posted by edwardgtxy

I recommend ad08r if you are looking for durability and not ultimate grip. They can handle a tons of abuse and wear a lot slower than any of the 200 tw cheater tires.

Those were my last set of tires and were great until my 11th event. Even though there was tread left they just wouldn't grip anymore. Guess they heat cycled out or something. The RE71R's are about a second faster for me on my local track.

SYT_Shadow · 05-03-2019, 07:51 AM

I saw a AD08R'S' the other day, I wonder what those will be like

dparm · 05-03-2019, 09:10 AM

Quote:

Originally Posted by SYT_Shadow

I saw a AD08R'S' the other day, I wonder what those will be like

New compound versus the R, same tread design. Hoping for more sizes, but this makes it sound like they're actually going to have fewer:
"The Company plans to gradually make the tire available in 31 sizes, ranging from 185/55R15 82V to 255/30R19 91W."

https://www.yokohama-online.com/News...N-NEOVA-AD08RS

bigjae1976 · 05-04-2019, 09:27 PM

Quote:

Originally Posted by dparm

Quote:

Originally Posted by dbyrd

Damn, James, I can't get more than 4 days out of NT01s, and I know you like to slide as much as I do. What does your e46 weigh now? My car's at around 3550 + 220 with driver.

Hope to see you on the 3.1 this weekend.

You guys blew off NASA Texas at COTA for MSR? Boo.

I'm not a big fan of COTA especially at the price NASA charges.

rhyary · 05-04-2019, 11:17 PM

Even wear after today. After 3 sessions on 40psi hot, I dropped to to 34 hot and it destroyed the front tires. Live and learn.
.

kyippee · 05-05-2019, 09:14 AM

Which tire is that? Toyo RR?

ThunderMoose · 05-05-2019, 10:27 AM

Quote:

Originally Posted by rhyary

Even wear after today. After 3 sessions on 40psi hot, I dropped to to 34 hot and it destroyed the front tires. Live and learn.
.

What camber are you running?

Rassilon · 05-05-2019, 07:53 PM

Wow you are literally cornering on the sidewall...

Richbot · 05-05-2019, 08:10 PM

Quote:

Originally Posted by SYT_Shadow

I saw a AD08R'S' the other day, I wonder what those will be like

According to their press release, it’s a LRR tire meant to meet certain EUemissions rolling resistance specs for summer tires. Doubt that makes it better for our purposes but who knows. Damn Teslas ruint everything again

rhyary · 05-05-2019, 08:20 PM

Quote:

Originally Posted by kpewpew

Which tire is that? Toyo RR?

yes

rhyary · 05-05-2019, 08:34 PM

Quote:

Originally Posted by edwardgtxy

Wow you are literally cornering on the sidewall...

please note that I corded both sides. So not a camber issue.
At this point, I am theorizing that this is due to low air pressure. I took it down from 35 cool to 30 cool (as measured before getting on the track) and in one session destroyed the tires (they were not new). Best time was 1:40.

Today I had another track day. I had my road set with me. PS4S. I set the pressure to 35 when I got to the track and that's it. did not touch it further.

In the rain i did 1:42. In the wet and open track last hour I did 1:38.7. The PS4S finished the day evenly worn and almost no wear that I can see.

So this is what I am going to do until I observe otherwise. 35. There is a lot of "information" coming from drivers and it mostly translate into lower the psi to get traction and go faster. In my case it translates to destroy you tires and not going any faster.

My camber is -2.9.
when it was over 3.0 it destroyed the inside wall.

bigjae1976 · 05-05-2019, 08:50 PM

Quote:

Originally Posted by rhyary

Quote:

Originally Posted by edwardgtxy

Wow you are literally cornering on the sidewall...

please note that I corded both sides. So not a camber issue.
At this point, I am theorizing that this is due to low air pressure. I took it down from 35 cool to 30 cool (as measured before getting on the track) and in one session destroyed the tires (they were not new). Best time was 1:40.

Today I had another track day. I had my road set with me. PS4S. I set the pressure to 35 when I got to the track and that's it. did not touch it further.

In the rain i did 1:42. In the wet and open track last hour I did 1:38.7. The PS4S finished the day evenly worn and almost no wear that I can see.

So this is what I am going to do until I observe otherwise. 35. There is a lot of "information" coming from drivers and it mostly translate into lower the psi to get traction and go faster. In my case it translates to destroy you tires and not going any faster.

My camber is -2.9.
when it was over 3.0 it destroyed the inside wall.

I ran 34-36psi hot in my E90 with NT01s at -2.5 camber with even tire wear.

That's weird.

kyippee · 05-05-2019, 10:36 PM

Yea, this is weird, but I don't know what Toyo RR like for pressure. I run NT01 at 25 cold, 35 hot and I get very even wear. End up cording the rear tires first, on the inside.

SYT_Shadow · 05-06-2019, 12:49 PM

Quote:

Originally Posted by Richbot

According to their press release, it’s a LRR tire meant to meet certain EUemissions rolling resistance specs for summer tires. Doubt that makes it better for our purposes but who knows. Damn Teslas ruint everything again

Just ordered two sets of RE71R again

bigjae1976 · 05-06-2019, 04:01 PM

Quote:

Originally Posted by kpewpew

Yea, this is weird, but I don't know what Toyo RR like for pressure. I run NT01 at 25 cold, 35 hot and I get very even wear. End up cording the rear tires first, on the inside.

I go 25/26 PSI cold and target is 32 hot. My car is a lot lighter so I shoot for a lower hot pressure.

I used to shoot for 38-40psi on my 330ci to prevent rolling over onto the tire's shoulder in corners. It's a significant compromise and not a good idea to do long term.

rhyary · 05-06-2019, 06:01 PM

Quote:

Originally Posted by bigjae1976

Quote:

Originally Posted by kpewpew

Yea, this is weird, but I don't know what Toyo RR like for pressure. I run NT01 at 25 cold, 35 hot and I get very even wear. End up cording the rear tires first, on the inside.

I go 25/26 PSI cold and target is 32 hot. My car is a lot lighter so I shoot for a lower hot pressure.

I used to shoot for 38-40psi on my 330ci to prevent rolling over onto the tire's shoulder in corners. It's a significant compromise and not a good idea to do long term.

Isn't 32psi with a light car the same as 38 with a heavier car?

There is a relationship between weight and pressure.

dparm · 05-06-2019, 06:33 PM

Quote:

Originally Posted by rhyary

Isn't 32psi with a light car the same as 38 with a heavier car?

There is a relationship between weight and pressure.

Basically, yes. If you look at the door jamb sticker, it shows to add more pressure if you will be carrying a lot of people/things.

bigjae1976 · 05-06-2019, 06:42 PM

Quote:

Originally Posted by rhyary

Quote:

Originally Posted by bigjae1976

Quote:

Originally Posted by kpewpew

Yea, this is weird, but I don't know what Toyo RR like for pressure. I run NT01 at 25 cold, 35 hot and I get very even wear. End up cording the rear tires first, on the inside.

I go 25/26 PSI cold and target is 32 hot. My car is a lot lighter so I shoot for a lower hot pressure.

I used to shoot for 38-40psi on my 330ci to prevent rolling over onto the tire's shoulder in corners. It's a significant compromise and not a good idea to do long term.

Isn't 32psi with a light car the same as 38 with a heavier car?

There is a relationship between weight and pressure.

Yeah but 38 is kinda high even for a heavier car.

I think 32psi is too high for my car. I think 30psi is about right but need to try it first.

05-01-2019, 04:38 PM	#46
kyippee Lieutenant Colonel 1073 Rep 1,617 Posts Drives: E92 M3, Supra MK5, F44 235GC Join Date: Feb 2017 Location: SF Bay Area iTrader: (0)	Yea.. I get 6-7 days out of NT01s, with each day being 4-5 sessions. Full weight car and -3.5 F and -2.0 R camber.
	Appreciate 0 Quote

05-02-2019, 03:45 PM	#48
Rassilon First Lieutenant 85 Rep 330 Posts Drives: 2011 e92 m3 Join Date: Apr 2015 Location: Seattle, WA iTrader: (0)	I recommend ad08r if you are looking for durability and not ultimate grip. They can handle a tons of abuse and wear a lot slower than any of the 200 tw cheater tires.
	Appreciate 0 Quote

05-03-2019, 07:51 AM	#50
SYT_Shadow ///M Powered for Life 11480 Rep 10,328 Posts Drives: E90M/E92M/M4GTS/M4GT4/X5M Join Date: Sep 2010 Location: Greenwich, CT iTrader: (2)	I saw a AD08R'S' the other day, I wonder what those will be like __________________ DIY: S65 Rod Bearings E9X PFC Z54 BBK on F8X BK harness bar + seats: fit 6 tires in an M3 do88 Cooling Goodies GTS Twins: GTMore project
	Appreciate 0 Quote

05-04-2019, 11:17 PM	#53
rhyary Colonel 1563 Rep 2,869 Posts Drives: 2013 M3 Join Date: May 2015 Location: Albany, NY iTrader: (0)	Even wear after today. After 3 sessions on 40psi hot, I dropped to to 34 hot and it destroyed the front tires. Live and learn. . Attached Images
	Appreciate 0 Quote

05-05-2019, 09:14 AM	#54
kyippee Lieutenant Colonel 1073 Rep 1,617 Posts Drives: E92 M3, Supra MK5, F44 235GC Join Date: Feb 2017 Location: SF Bay Area iTrader: (0)	Which tire is that? Toyo RR?
	Appreciate 0 Quote

05-05-2019, 07:53 PM	#56
Rassilon First Lieutenant 85 Rep 330 Posts Drives: 2011 e92 m3 Join Date: Apr 2015 Location: Seattle, WA iTrader: (0)	Wow you are literally cornering on the sidewall...
	Appreciate 0 Quote

05-05-2019, 10:36 PM	#61
kyippee Lieutenant Colonel 1073 Rep 1,617 Posts Drives: E92 M3, Supra MK5, F44 235GC Join Date: Feb 2017 Location: SF Bay Area iTrader: (0)	Yea, this is weird, but I don't know what Toyo RR like for pressure. I run NT01 at 25 cold, 35 hot and I get very even wear. End up cording the rear tires first, on the inside.
	Appreciate 0 Quote