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      10-11-2020, 10:55 PM   #1
CrashFL
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Holy Tire Life, Batman

Just got 4 days out of a set of RE-71Rs. I'm driving COTA, which is a fairly high speed track.... Would really like a good tire that will wear a little better. Tried RS-4s, and wasn't particularly fond of them. I run an 18" staggered setup, 255/275, and flipped the tires on the rim after the first 2 days.

What's a good option to run next? Currently on Apex EC-7, 18x9 ET31 and 18x10 ET33 (not completely confident I'm fully clearing the Ohins on front with 10 mm spacers). I've read a lot of posts on here.... Open to ideas. Currently at camber of -2.5 front and -2 rear.

Thanks!
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      10-11-2020, 11:47 PM   #2
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RS4s will have the best life, by far but yea they're a bit slower. But if you don't like those and want better grip, try the Nexen SUR4Gs.
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      10-12-2020, 01:36 AM   #3
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I’m looking for the same thing after using up a set of A052s in three days. They were amazing while they lasted, especially in the wet, but would like to find something that splits the difference with RS4. I could get 10+ days out of the RS4, but found the sudden breakaway when their limits were exceeded, long warmup time, and poor wet traction left me wanting for something better.

I ran Nexen SUR4 (predecessor to the SUR4G) square on my last car, and would be game to try them on the M2, but they don’t appear to come in a workable staggered set of sizes. Too bad as I liked them and they lasted ~6 days if I recall correctly while offering pretty good grip.

Bridgestone S007 comes in the right sizes, but was neither grippy or durable, and got super greasy when overheated.

Has anyone tried Goodyear Eagle Supercar 3? A friend has one wet day on them so far on his M2 and likes them so far, but no word on how long they last. Comes in 255 and 275 40r18, so a good option from a sizing perspective, and pretty reasonable cost.

Direzza ZIII? Would be pretty short in 35 series for 255/275, but would probably work.

NT01 are often recommended here, but would require wider wheels for what I believe people are running- 275f 305r.

Not a ton of great staggered options out there.
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      10-12-2020, 05:12 AM   #4
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3 days for tires? Yikes. And you guys run higher negative camber too. That's really surprising to me. What do your tire temperatures/pressures get to? I wonder if the tires get too hot and shred themselves too quickly?

I have only factory camber, and 3 days on my Cup2s, which are notorious for fast wear also, but I expect to get at least 2 or 3 more days out of them. This is what they look like after 3 days. Plenty of thread but beat up shoulders. But still no cords! I try to pay attention to temps and pressures as I run, and do cooldowns when I see temps >90C or pressures over 36psi.
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      10-12-2020, 07:33 AM   #5
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-2.5° in front is still too low for any strut car that sees track time. Need at least another -1.0° up there to get the most life out of those shoulders.
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      10-12-2020, 08:04 AM   #6
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There are so many variables to tire life, you can't compare each others tires that are being driven by different people, different race tracks different setups.

Some tracks are more abrasive than others and chew through tires quicker.

Maybe the driver is more demanding on their tires than others, which will go through tires quicker.

I have gone through 2 left side tires in one day on the M2C just to give you an example. Running 200 treadwear Yokohama A052's.
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      10-12-2020, 08:55 AM   #7
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Anyone put in a decent amount of time on AR1’s?
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      10-12-2020, 09:04 AM   #8
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Quote:
Originally Posted by iBrakeLate View Post
There are so many variables to tire life, you can't compare each others tires that are being driven by different people, different race tracks different setups.

Some tracks are more abrasive than others and chew through tires quicker.

Maybe the driver is more demanding on their tires than others, which will go through tires quicker.

I have gone through 2 left side tires in one day on the M2C just to give you an example. Running 200 treadwear Yokohama A052's.
This is why I asked about temps and PSI. In the end the tire experiences these 2 variables as well as friction from the surface and sheer forces. I know we can't directly compare, but it would be nice to see some more data points outside of my own.
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      10-12-2020, 10:46 AM   #9
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Quote:
Originally Posted by ZM2 View Post
Anyone put in a decent amount of time on AR1’s?
Next on my list I think, I will report back.
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      10-12-2020, 11:52 AM   #10
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I am a big fan of Falken rt615k for tire life. They are not on pace with an re71, but they feel great and are consistent. I can get 10-12 days out of a set on my m235 running a decent amount of camber while driving hard.
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      10-12-2020, 12:19 PM   #11
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I run 3.2f/2.2r camber. For the RS4, they seemed to like 38psi. The A052 seemed happiest at 36psi. Both based on handling and signs of rollover. I don’t have a pyrometer to check temperatures. Will probably add that to the toolbox next year.

A052 are dead due to outer shoulder wear, while RS4 was due to heat cycles and grip falling off. Ran a set of RS4 to near cords before and it was something like 15 days.

In any case, as mentioned above, everyone’s wear rate is different based on a number of factors. Hoping to see some relative guidance (Tire A lasted 50% longer than tire B for me).
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      10-12-2020, 12:37 PM   #12
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Quote:
Originally Posted by bentom2 View Post
A052 are dead due to outer shoulder wear, while RS4 was due to heat cycles and grip falling off. Ran a set of RS4 to near cords before and it was something like 15 days.
A052 seems to really struggle with shoulder wear, compared to other tires. I am starting to find this out. Same driver, same track, same car, different tires.
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      10-12-2020, 01:13 PM   #13
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Switched from re71r to r888r on my s2k for the same reason op posted. Handle heat better and seem to be lasting quite a bit longer.. tbd
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      10-12-2020, 01:34 PM   #14
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Quote:
Originally Posted by iBrakeLate View Post
A052 seems to really struggle with shoulder wear, compared to other tires. I am starting to find this out. Same driver, same track, same car, different tires.
It’s too bad. The grip and behavior at the limit are amazing. I will say they’re holding up much better on my wife’s Cayman, so perhaps they just do better on a lighter car. She has 6 days on a set and can probably get 1-2 more before they’re gone. Also, I tend to drive with a bit more slip angle than she does, so these might also just be a tire that you have to be a bit more respectful of the limits due to the soft compound so you don’t just smear it onto the track.

They took nearly 3 seconds off my personal best, set on RS4s at a 1:3x 2.2 mile track that I know well. In the first session of the day no less. Huge difference in grip, but I’d give some of that up for a bit more tolerance to abuse.

Direzza ZIII, GY Eagle F1 Supercar, and the Azenis 660k (615 seems to be getting phased out and not offered in the right sizes) are my short list right now. Will look more at the R888s and AR1.

Thanks for the feedback so far, everyone.
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      10-12-2020, 01:45 PM   #15
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I can state from experience that Supercar3's provide similar grip to RE-71R and last much longer. I would give them a shot.

They particularly do well on camber limited strut cars. They have very stiff sidewalls.
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      10-12-2020, 02:42 PM   #16
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Quote:
Originally Posted by bentom2 View Post
I run 3.2f/2.2r camber. For the RS4, they seemed to like 38psi. The A052 seemed happiest at 36psi. Both based on handling and signs of rollover. I don’t have a pyrometer to check temperatures. Will probably add that to the toolbox next year.

A052 are dead due to outer shoulder wear, while RS4 was due to heat cycles and grip falling off. Ran a set of RS4 to near cords before and it was something like 15 days.

In any case, as mentioned above, everyone’s wear rate is different based on a number of factors. Hoping to see some relative guidance (Tire A lasted 50% longer than tire B for me).
I know a lot of factors affect this, but what PSI would you start at cold to get them to 38 PSI hot? I'm just curious.

I've been able to get 35+ PSI hot at Laguna when starting out as low as 26 PSI cold.
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      10-12-2020, 02:55 PM   #17
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A052 smoked the new Michelin Cup 2, but the Michelin does have "Michelin's Track Longevity Technology 2.0 reinforces the outboard shoulder with a special, abrasion-resistant rubber to enhance endurance and longevity when used in high performance driving."

https://www.tirerack.com/tires/tests...y.jsp?ttid=262

I haven't investigated enough to know if the tire is any different than the regular Cup 2 other than the sensors.
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      10-12-2020, 02:57 PM   #18
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Here's the performance test that includes the Supercar 3. No idea about longevity, tho:

https://www.tirerack.com/tires/tests...y.jsp?ttid=255
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      10-12-2020, 03:07 PM   #19
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Quote:
Originally Posted by JustAWhisper View Post
I can state from experience that Supercar3's provide similar grip to RE-71R and last much longer. I would give them a shot.

They particularly do well on camber limited strut cars. They have very stiff sidewalls.
+1..except only marginally increased life. Best part of the GYs is that they don’t get greasy like the Bridgestones, and just get faster as they wear....for me anyway. Big kudos to GY on the SC3s.
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      10-12-2020, 03:52 PM   #20
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After relooking at those TireRack tests, the most interesting alternative tire looks like the RT660. $150 cheaper a set than the A052, but no idea about longevity or if they grease out like the 71R's.

I just don't know that I could fit a 315/30 on an 18x10.5 ET40 EC-7R in the rear for my preferred staggered setup, and really don't want 275/315 for handling balance.

Looks like a good option for anyone running 275/35/18 square, tho.

Last edited by ZM2; 10-12-2020 at 04:01 PM..
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      10-12-2020, 04:08 PM   #21
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Quote:
Originally Posted by iBrakeLate View Post
Next on my list I think, I will report back.
Definitely interested. You see these all over Germany and the Ring. $200/set cheaper than the A052's, so curious to hear about performance, longevity, and heat resistance.
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      10-12-2020, 04:33 PM   #22
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Quote:
Originally Posted by ZM2 View Post
Definitely interested. You see these all over Germany and the Ring. $200/set cheaper than the A052's, so curious to hear about performance, longevity, and heat resistance.
I wish it was the case here, they are pretty much the same price as a set of A052's in the USA.

I have a lot of laps on multiple sets of A052's, I should be able to give you a fair comparison.
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